using System;
using System.ComponentModel;
using System.IO;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace OT.Controls.DataPager
{
    public partial class Pager
    {
        #region Private fields

        private enum NavigationButton : byte
        {
            First, Prev, Next, Last
        }

        //private string cssClassName;
        private string inputPageIndex;
        private string currentUrl;
        private string queryString;
        private Pager cloneFrom;
        private static readonly object EventPageChanging = new object();
        private static readonly object EventPageChanged = new object();
        //bool pageChangeEventHandled = false;
        //AspNetPager Version number, does not use reflection for perfomance reason
        const string VersionNumber = "7.3.2";

        #endregion


        #region Navigation Buttons

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(""),
        Description("導航按鈕提示信息格式化。")]
        public bool ShowNavigationToolTip
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.ShowNavigationToolTip;
                object obj = ViewState["ShowNvToolTip"];
                return (obj == null) ? false : (bool)obj;
            }
            set
            {
                ViewState["ShowNvToolTip"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(""),
        Description("頁碼按鈕提示信息格式化。")]
        public string NavigationToolTipTextFormatString
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.NavigationToolTipTextFormatString;
                object obj = ViewState["NvToolTipFormatString"];
                if (obj == null)
                {
                    if (ShowNavigationToolTip)
                        return "ShowNavigationToolTip:{0}";
                    return null;
                }
                return (string)obj;
            }
            set
            {
                string tip = value;
                if (tip.Trim().Length < 1 && tip.IndexOf("{0}") < 0)
                    tip = "{0}";
                ViewState["NvToolTipFormatString"] = tip;
            }
        }


        [Category("Behavior"),
        Browsable(true),
        DefaultValue(""),
        Description("頁碼按鈕顯示格式化。")]
        public string NumericButtonTextFormatString
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.NumericButtonTextFormatString;
                object obj = ViewState["NumericButtonTextFormatString"];
                return (obj == null) ? String.Empty : (string)obj;
            }
            set
            {
                ViewState["NumericButtonTextFormatString"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(""),
        Description("當前頁碼按鈕顯示格式化。")]
        public string CurrentPageButtonTextFormatString
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.CurrentPageButtonTextFormatString;
                object obj = ViewState["CurrentPageButtonTextFormatString"];
                return (obj == null) ? NumericButtonTextFormatString : (string)obj;
            }
            set
            {
                ViewState["CurrentPageButtonTextFormatString"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(PagingButtonType.Image),
        Description("頁碼按鈕顯示類型。預設：Text")]
        public PagingButtonType PagingButtonType
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.PagingButtonType;
                object obj = ViewState["PagingButtonType"];
                return (obj == null) ? PagingButtonType.Image : (PagingButtonType)obj;
            }
            set
            {
                ViewState["PagingButtonType"] = value;
            }
        }


        [Category("Behavior"),
        Browsable(true),
        DefaultValue(PagingButtonType.Text),
        Description("頁碼按鈕顯示類型。預設：Text")]
        public PagingButtonType NumericButtonType
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.NumericButtonType;
                object obj = ViewState["NumericButtonType"];
                return (obj == null) ? PagingButtonType.Text : (PagingButtonType)obj;
            }
            set
            {
                ViewState["NumericButtonType"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(PagingButtonLayoutType.None),
        Description("頁碼按鈕顯示樣式類型。預設：None")]
        public PagingButtonLayoutType PagingButtonLayoutType
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.PagingButtonLayoutType;
                object obj = ViewState["PagingButtonLayoutType"];
                return (obj == null) ? PagingButtonLayoutType.None : (PagingButtonLayoutType)obj;
            }
            set { ViewState["PagingButtonLayoutType"] = value; }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(NavigationButtonPosition.BothSides),
        Description("當前頁碼按鈕定位方式。預設：BothSides")]
        public PagingButtonPosition CurrentPageButtonPosition
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.CurrentPageButtonPosition;
                object obj = ViewState["CurrentPageButtonPosition"];
                return (obj == null) ? PagingButtonPosition.Fixed : (PagingButtonPosition)obj;
            }
            set { ViewState["CurrentPageButtonPosition"] = value; }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(NavigationButtonPosition.BothSides),
        Description("導航按鈕定位方式。預設：BothSides")]
        public NavigationButtonPosition NavigationButtonsPosition
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.NavigationButtonsPosition;
                object obj = ViewState["NavigationButtonsPosition"];
                return (obj == null) ? NavigationButtonPosition.BothSides : (NavigationButtonPosition)obj;
            }
            set { ViewState["NavigationButtonsPosition"] = value; }

        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(PagingButtonType.Button),
        Description("導航按鈕類型。預設：Button")]
        public PagingButtonType NavigationButtonType
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.NavigationButtonType;
                object obj = ViewState["NavigationButtonType"];
                return (obj == null) ? PagingButtonType.Button : (PagingButtonType)obj;
            }
            set
            {
                ViewState["NavigationButtonType"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(""),
        TypeConverter(typeof(TargetConverter)),
        Description("UrlPagingTarget。")]
        public string UrlPagingTarget
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.UrlPagingTarget;
                return (string)ViewState["UrlPagingTarget"];
            }
            set
            {
                ViewState["UrlPagingTarget"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(PagingButtonType.Text),
        Description("More按鈕的顯示類型。預設：Text")]
        public PagingButtonType MoreButtonType
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.MoreButtonType;
                object obj = ViewState["MoreButtonType"];
                return (obj == null) ? PagingButtonType.Text : (PagingButtonType)obj;
            }
            set
            {
                ViewState["MoreButtonType"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(typeof(Unit), "5px"),
        Description("頁碼的間距。預設：5px")]
        public Unit PagingButtonSpacing
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.PagingButtonSpacing;
                object obj = ViewState["PagingButtonSpacing"];
                return (obj == null) ? Unit.Pixel(5) : (Unit.Parse(obj.ToString()));
            }
            set
            {
                ViewState["PagingButtonSpacing"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(true),
        Description("是否顯示第一頁和最後一頁控件")]
        public bool ShowFirstLast
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.ShowFirstLast;
                object obj = ViewState["ShowFirstLast"];
                return (obj == null) ? true : (bool)obj;
            }
            set { ViewState["ShowFirstLast"] = value; }
        }


        [Category("Behavior"),
        Browsable(true),
        DefaultValue(true),
        Description("是否顯示上一頁和下一頁控件")]
        public bool ShowPrevNext
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.ShowPrevNext;
                object obj = ViewState["ShowPrevNext"];
                return (obj == null) ? true : (bool)obj;
            }
            set { ViewState["ShowPrevNext"] = value; }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(true),
        Description("是否顯示頁碼")]
        public bool ShowPageIndex
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.ShowPageIndex;
                object obj = ViewState["ShowPageIndex"];
                return (obj == null) ? true : (bool)obj;
            }
            set { ViewState["ShowPageIndex"] = value; }
        }


        [Category("Behavior"),
        Browsable(true),
        DefaultValue(true),
        Description("是否顯示More按鈕")]
        public bool ShowMoreButtons
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.ShowMoreButtons;
                object obj = ViewState["ShowMoreButtons"];
                return (obj == null) ? true : (bool)obj;
            }
            set { ViewState["ShowMoreButtons"] = value; }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue("&lt;&lt;"),
        Description("第一頁顯示文字，預設&lt;&lt;")]
        public string FirstPageText
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.FirstPageText;
                object obj = ViewState["FirstPageText"];
                return (obj == null) ? "&lt;&lt;" : (string)obj;
            }
            set { ViewState["FirstPageText"] = value; }
        }


        [Category("Behavior"),
        Browsable(true),
        DefaultValue("&lt;"),
        Description("上一頁顯示文字，預設&lt;")]
        public string PrevPageText
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.PrevPageText;
                object obj = ViewState["PrevPageText"];
                return (obj == null) ? "&lt;" : (string)obj;
            }
            set { ViewState["PrevPageText"] = value; }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue("&gt;"),
        Description("下一頁顯示文字，預設&gt;")]
        public string NextPageText
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.NextPageText;
                object obj = ViewState["NextPageText"];
                return (obj == null) ? "&gt;" : (string)obj;
            }
            set { ViewState["NextPageText"] = value; }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue("&gt;&gt;"),
        Description("最後一頁顯示文字，預設&gt;&gt;")]
        public string LastPageText
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.LastPageText;
                object obj = ViewState["LastPageText"];
                return (obj == null) ? "&gt;&gt;" : (string)obj;
            }
            set { ViewState["LastPageText"] = value; }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(10),
        Description("分頁長度，預設10")]
        public int NumericButtonCount
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.NumericButtonCount;
                object obj = ViewState["NumericButtonCount"];
                return (obj == null) ? 10 : (int)obj;
            }
            set { ViewState["NumericButtonCount"] = value; }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(true),
        Description("是否顯示禁用的按鈕")]
        public bool ShowDisabledButtons
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.ShowDisabledButtons;
                object obj = ViewState["ShowDisabledButtons"];
                return (obj == null) ? true : (bool)obj;
            }
            set
            {
                ViewState["ShowDisabledButtons"] = value;
            }
        }

        #endregion

        #region Image Navigation Buttons


        [Category("Behavior"),
        Browsable(true),
        DefaultValue(""),
        Description("圖片路徑.")]
        public string ImagePath
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.ImagePath;
                string imgPath = (string)ViewState["ImagePath"];
                if (imgPath != null)
                    imgPath = ResolveUrl(imgPath);
                return imgPath;
            }
            set
            {
                string imgPath = value.Trim().Replace("\\", "/");
                ViewState["ImagePath"] = (imgPath.EndsWith("/")) ? imgPath : imgPath + "/";
            }
        }


        [Category("Behavior"),
        Browsable(true),
        DefaultValue(".gif"),
        Description("圖片後綴名稱.")]
        public string ButtonImageExtension
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.ButtonImageExtension;
                object obj = ViewState["ButtonImageExtension"];
                return (obj == null) ? ".gif" : (string)obj;
            }
            set
            {
                string ext = value.Trim();
                ViewState["ButtonImageExtension"] = (ext.StartsWith(".")) ? ext : ("." + ext);
            }
        }


        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("按鈕圖片後綴名稱.")]
        public string ButtonImageNameExtension
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.ButtonImageNameExtension;
                object obj = ViewState["ButtonImageNameExtension"];
                return (obj == null) ? null : (string)obj;
            }
            set
            {
                ViewState["ButtonImageNameExtension"] = value;
            }
        }


        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("Cpi圖片後綴名稱.")]
        public string CpiButtonImageNameExtension
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.CpiButtonImageNameExtension;
                object obj = ViewState["CpiButtonImageNameExtension"];
                return (obj == null) ? ButtonImageNameExtension : (string)obj;
            }
            set
            {
                ViewState["CpiButtonImageNameExtension"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("隱藏圖片後綴名稱.")]
        public string DisabledButtonImageNameExtension
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.DisabledButtonImageNameExtension;
                object obj = ViewState["DisabledButtonImageNameExtension"];
                return (obj == null) ? ButtonImageNameExtension : (string)obj;
            }
            set
            {
                ViewState["DisabledButtonImageNameExtension"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(ImageAlign.NotSet),
        Description("圖片對齊方式. 預設NotSet")]
        public ImageAlign ButtonImageAlign
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.ButtonImageAlign;
                object obj = ViewState["ButtonImageAlign"];
                return (obj == null) ? ImageAlign.NotSet : (ImageAlign)obj;
            }
            set
            {
                if (value != ImageAlign.Right && value != ImageAlign.Left)
                    ViewState["ButtonImageAlign"] = value;
            }
        }


        #endregion

        #region Paging

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(false),
        Description("是否啟用Url分頁. 預設false")]
        public bool UrlPaging
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.UrlPaging;
                object obj = ViewState["UrlPaging"];
                return (null == obj) ? false : (bool)obj;
            }
            set
            {
                ViewState["UrlPaging"] = value;
            }
        }


        [Category("Behavior"),
        Browsable(true),
        DefaultValue("page"),
        Description("Url分頁當前頁碼參數名稱. 預設false")]
        public string UrlPageIndexName
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.UrlPageIndexName;
                object obj = ViewState["UrlPageIndexName"];
                return (null == obj) ? "page" : (string)obj;
            }
            set { ViewState["UrlPageIndexName"] = value; }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(""),
        Description("Url分頁大小參數名稱. 預設false")]
        public string UrlPageSizeName
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.UrlPageSizeName;
                return (string)ViewState["UrlPageSizeName"];
            }
            set { ViewState["UrlPageSizeName"] = value; }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(false),
        Description("頁碼倒序排列. 預設false")]
        public bool ReverseUrlPageIndex
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.ReverseUrlPageIndex;
                object obj = ViewState["ReverseUrlPageIndex"];
                return (null == obj) ? false : (bool)obj;
            }
            set { ViewState["ReverseUrlPageIndex"] = value; }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(0),
        Description("當前頁碼. 預設1")]
        public int CurrentPageIndex
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.CurrentPageIndex;
                object cpage = ViewState["CurrentPageIndex"];
                int pindex = (cpage == null) ? 1 : (int)cpage;
                if (pindex > PageCount && PageCount > 0)
                    return PageCount;
                if (pindex < 1)
                    return 1;
                return pindex;
            }
            set
            {
                int cpage = value;
                if (cpage < 1)
                    cpage = 1;
                //Deleted by Ethan,因為初始化的時候Gridview還沒有資料，無法恢復記錄的頁碼 Start.
                //else if (cpage > PageCount)
                //    cpage = PageCount;
                //Deleted by Ethan,因為初始化的時候Gridview還沒有資料，無法恢復記錄的頁碼 End.
                ViewState["CurrentPageIndex"] = cpage;
                //if(!pageChangeEventHandled)
                //{
                //    OnPageChanging(new PageChangingEventArgs(cpage));
                //}
            }
        }


        [Category("Behavior"),
        Browsable(true),
        DefaultValue(0),
        Description("資料總筆數. 預設0")]
        public int RecordCount
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.RecordCount;
                object obj = ViewState["Recordcount"];
                return (obj == null) ? 0 : (int)obj;
            }
            set { ViewState["Recordcount"] = value; }
        }

        [Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        public int PagesRemain
        {
            get
            {
                return PageCount - CurrentPageIndex;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(10),
        Description("分頁資料筆數. 預設10")]
        public int PageSize
        {
            get
            {
                if (!string.IsNullOrEmpty(UrlPageSizeName) && !DesignMode)
                {
                    int pageSize;
                    if (int.TryParse(Page.Request.QueryString[UrlPageSizeName], out pageSize))
                    {
                        if (pageSize > 0)
                            return pageSize;
                    }
                }
                if (null != cloneFrom)
                    return cloneFrom.PageSize;
                object obj = ViewState["PageSize"];
                return (obj == null) ? 10 : (int)obj;
            }
            set
            {
                ViewState["PageSize"] = value;
            }
        }

        [Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        public int RecordsRemain
        {
            get
            {
                if (CurrentPageIndex < PageCount)
                    return RecordCount - (CurrentPageIndex * PageSize);
                return 0;
            }
        }

        [Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        public int StartRecordIndex
        {
            get
            {
                //if (FillLastPage && RecordCount > PageSize && CurrentPageIndex == PageCount)
                //    return RecordCount - PageSize;
                return (CurrentPageIndex - 1) * PageSize + 1;
            }
        }


        [Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        public int EndRecordIndex
        {
            get
            {
                return RecordCount - RecordsRemain;
            }
        }

        [Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
        public int PageCount
        {
            get
            {
                if (RecordCount == 0)
                    return 1;
                return (int)Math.Ceiling((double)RecordCount / (double)PageSize);
            }
        }


        #endregion


        #region
        [Category("Behavior"),
        Browsable(true),
        DefaultValue(ShowPageMax.Always),
        Description("是否顯示跳轉頁面碼控件. 預設Never")]
        public ShowPageMax ShowPageMax
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.ShowPageMax;
                object obj = ViewState["ShowPageMax"];
                return (obj == null) ? ShowPageMax.Always : (ShowPageMax)obj;
            }
            set { ViewState["ShowPageMax"] = value; }
        }

        [Category("Behavior"),
         Browsable(true),
        DefaultValue(PageMaxType.TextBox),
        Description("跳轉頁面碼控件類型")]
        public PageMaxType PageMaxType
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.PageMaxType;
                object obj = ViewState["PageIndexBoxType"];
                return (obj == null) ? PageMaxType.TextBox : (PageMaxType)obj;
            }
            set
            {
                ViewState["PageIndexBoxType"] = value;
            }
        }
        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("跳轉頁面碼控件CssClass")]
        public string PageMaxClass
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.PageMaxClass;
                object obj = ViewState["PageMaxClass"];
               return (obj == null) ? null : (string)obj;
                //return (obj == null) ? "right" : (string)obj;

            }
            set
            {
                if (value.Trim().Length > 0)
                    ViewState["PageMaxClass"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("跳轉頁面碼控件Style")]
        public string PageMaxStyle
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.PageMaxStyle;
                object obj = ViewState["PageMaxStyle"];
                return (obj == null) ? null : (string)obj;
            }
            set
            {
                if (value.Trim().Length > 0)
                    ViewState["PageMaxStyle"] = value;
            }
        }

        #endregion




        #region Page index box
        //gary
        [Category("Behavior"),
        Browsable(true),
        DefaultValue(ShowPageIndexBox.Always),
        Description("是否顯示跳轉頁面碼控件. 預設Never")]
        public ShowPageIndexBox ShowPageIndexBox
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.ShowPageIndexBox;
                object obj = ViewState["ShowPageIndexBox"];
                return (obj == null) ? ShowPageIndexBox.Always : (ShowPageIndexBox)obj;
            }
            set { ViewState["ShowPageIndexBox"] = value; }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(PageIndexBoxType.TextBox),
        Description("跳轉頁面碼控件類型")]
        public PageIndexBoxType PageIndexBoxType
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.PageIndexBoxType;
                object obj = ViewState["PageIndexBoxType"];
                return (obj == null) ? PageIndexBoxType.TextBox : (PageIndexBoxType)obj;
            }
            set
            {
                ViewState["PageIndexBoxType"] = value;
            }
        }
        //gary end
        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("跳轉頁面碼控件CssClass")]
        public string PageIndexBoxClass
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.PageIndexBoxClass;
                object obj = ViewState["PageIndexBoxClass"];
                return (obj == null) ? null : (string)obj;
            }
            set
            {
                if (value.Trim().Length > 0)
                    ViewState["PageIndexBoxClass"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("跳轉頁面碼控件Style")]
        public string PageIndexBoxStyle
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.PageIndexBoxStyle;
                object obj = ViewState["PageIndexBoxStyle"];
                return (obj == null) ? null : (string)obj;
            }
            set
            {
                if (value.Trim().Length > 0)
                    ViewState["PageIndexBoxStyle"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("跳轉頁面碼控件前顯示的文字。例如第X")]
        public string TextBeforePageIndexBox
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.TextBeforePageIndexBox;
                object obj = ViewState["TextBeforePageIndexBox"];
                return (null == obj) ? null : (string)obj;
            }
            set
            {
                ViewState["TextBeforePageIndexBox"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("跳轉頁面碼控件後顯示的文字。例如X頁")]
        public string TextAfterPageIndexBox
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.TextAfterPageIndexBox;
                object obj = ViewState["TextAfterPageIndexBox"];
                return (null == obj) ? null : (string)obj;
            }
            set
            {
                ViewState["TextAfterPageIndexBox"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue("Go"),
        Description("跳轉頁面按鈕的文字。")]
        public string SubmitButtonText
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.SubmitButtonText;
                object obj = ViewState["SubmitButtonText"];
                return (null == obj) ? "Go" : (string)obj;
            }
            set
            {
                if (null == value)
                    value = "Go";
                ViewState["SubmitButtonText"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(""),
        Description("跳轉頁面按鈕的Class。")]
        public string SubmitButtonClass
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.SubmitButtonClass;
                return (string)ViewState["SubmitButtonClass"];
            }
            set
            {
                ViewState["SubmitButtonClass"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(""),
        Description("跳轉頁面按鈕的Style。")]
        public string SubmitButtonStyle
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.SubmitButtonStyle;
                return (string)ViewState["SubmitButtonStyle"];
            }
            set
            {
                ViewState["SubmitButtonStyle"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(""),
        Description("跳轉頁面按鈕的圖片Url路徑。")]
        public string SubmitButtonImageUrl
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.SubmitButtonImageUrl;
                return (string)ViewState["SubmitButtonImageUrl"];
            }
            set { ViewState["SubmitButtonImageUrl"] = value; }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(1),
        Description("當超過多少頁時顯示跳轉頁面碼控件。預設30")]
        public int ShowBoxThreshold
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.ShowBoxThreshold;
                object obj = ViewState["ShowBoxThreshold"];
                return (null == obj) ? 1 : (int)obj;
            }
            set { ViewState["ShowBoxThreshold"] = value; }
        }


        #endregion

        #region CustomInfoSection
        [Category("Behavior"),
        Browsable(true),
        DefaultValue(ShowCustomInfoSection.Never),
        Description("顯示客制化信息。預設Never")]
        public ShowCustomInfoSection ShowCustomInfoSection
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.ShowCustomInfoSection;
                object obj = ViewState["ShowCustomInfoSection"];
                return (null == obj) ? ShowCustomInfoSection.Never : (ShowCustomInfoSection)obj;
            }
            set { ViewState["ShowCustomInfoSection"] = value; }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(HorizontalAlign.NotSet),
        Description("顯示客制化信息的水平方式")]
        public HorizontalAlign CustomInfoTextAlign
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.CustomInfoTextAlign;
                object obj = ViewState["CustomInfoTextAlign"];
                return (null == obj) ? HorizontalAlign.NotSet : (HorizontalAlign)obj;
            }
            set
            {
                ViewState["CustomInfoTextAlign"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(typeof(Unit), "40%"),
        Description("顯示客制化信息的寬度")]
        public Unit CustomInfoSectionWidth
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.CustomInfoSectionWidth;
                object obj = ViewState["CustomInfoSectionWidth"];
                return (null == obj) ? Unit.Percentage(40) : (Unit)obj;
            }
            set
            {
                ViewState["CustomInfoSectionWidth"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("顯示客制化信息的Class")]
        public string CustomInfoClass
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.CustomInfoClass;
                object obj = ViewState["CustomInfoClass"];
                return (null == obj) ? CssClass : (string)obj;
            }
            set
            {
                ViewState["CustomInfoClass"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("顯示客制化信息的Style")]
        public string CustomInfoStyle
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.CustomInfoStyle;
                object obj = ViewState["CustomInfoStyle"];
                return (null == obj) ? Style.Value : (string)obj;
            }
            set
            {
                ViewState["CustomInfoStyle"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue("Page %CurrentPageIndex% of %PageCount%"),
        Description("顯示客制化信息的格式。預設：Page %CurrentPageIndex% of %PageCount%")]
        public string CustomInfoHTML
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.CustomInfoHTML;
                object obj = ViewState["CustomInfoText"];
                return (null == obj) ? "Page %CurrentPageIndex% of %PageCount%" : (string)obj;
            }
            set
            {
                ViewState["CustomInfoText"] = value;
            }
        }

        #endregion

        #region Css class and styles

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("當前頁碼的Style。")]
        public string CurrentPageButtonStyle
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.CurrentPageButtonStyle;
                object obj = ViewState["CPBStyle"];
                return (null == obj) ? null : (string)obj;
            }
            set
            {
                ViewState["CPBStyle"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("當前頁碼的Class。")]
        public string CurrentPageButtonClass
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.CurrentPageButtonClass;
                object obj = ViewState["CPBClass"];
                return (null == obj) ? null : (string)obj;
            }
            set
            {
                ViewState["CPBClass"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("分頁頁碼的Class。")]
        public string PagingButtonsClass
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.PagingButtonsClass;
                object obj = ViewState["PagingButtonsClass"];
                return (null == obj) ? null : (string)obj;
            }
            set
            {
                ViewState["PagingButtonsClass"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("分頁頁碼的Style。")]
        public string PagingButtonsStyle
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.PagingButtonsStyle;
                object obj = ViewState["PagingButtonsStyle"];
                return (null == obj) ? null : (string)obj;
            }
            set
            {
                ViewState["PagingButtonsStyle"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("第一頁的Class。")]
        public string FirstButtonsClass
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.FirstButtonsClass;
                object obj = ViewState["FirstButtonsClass"];
                return (null == obj) ? null : (string)obj;
            }
            set
            {
                ViewState["FirstButtonsClass"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("第一頁的Style。")]
        public string FirstButtonsStyle
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.FirstButtonsStyle;
                object obj = ViewState["FirstButtonsStyle"];
                return (null == obj) ? PagingButtonsStyle : (string)obj;
            }
            set
            {
                ViewState["FirstButtonsStyle"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("最後一頁的Class。")]
        public string LastButtonsClass
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.LastButtonsClass;
                object obj = ViewState["LastButtonsClass"];
                return (null == obj) ? null : (string)obj;
            }
            set
            {
                ViewState["LastButtonsClass"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("最後一頁的Style。")]
        public string LastButtonsStyle
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.LastButtonsStyle;
                object obj = ViewState["LastButtonsStyle"];
                return (null == obj) ? PagingButtonsStyle : (string)obj;
            }
            set
            {
                ViewState["LastButtonsStyle"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("上一頁的Class。")]
        public string PrevButtonsClass
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.PrevButtonsClass;
                object obj = ViewState["PrevButtonsClass"];
                return (null == obj) ? null : (string)obj;
            }
            set
            {
                ViewState["PrevButtonsClass"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("上一頁的Style。")]
        public string PrevButtonsStyle
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.PrevButtonsStyle;
                object obj = ViewState["PrevButtonsStyle"];
                return (null == obj) ? PagingButtonsStyle : (string)obj;
            }
            set
            {
                ViewState["PrevButtonsStyle"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("下一頁的Class。")]
        public string NextButtonsClass
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.NextButtonsClass;
                object obj = ViewState["NextButtonsClass"];
                return (null == obj) ? null : (string)obj;
            }
            set
            {
                ViewState["NextButtonsClass"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("下一頁的Style。")]
        public string NextButtonsStyle
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.NextButtonsStyle;
                object obj = ViewState["NextButtonsStyle"];
                return (null == obj) ? PagingButtonsStyle : (string)obj;
            }
            set
            {
                ViewState["NextButtonsStyle"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("...的Style。")]
        public string MoreButtonsClass
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.MoreButtonsClass;
                object obj = ViewState["MoreButtonsClass"];
                return (null == obj) ? PagingButtonsClass : (string)obj;
            }
            set
            {
                ViewState["MoreButtonsClass"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(null),
        Description("...的Style。")]
        public string MoreButtonsStyle
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.MoreButtonsStyle;
                object obj = ViewState["MoreButtonsStyle"];
                return (null == obj) ? PagingButtonsStyle : (string)obj;
            }
            set
            {
                ViewState["MoreButtonsStyle"] = value;
            }
        }

        #endregion

        #region Others

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(false),
        Description("控件的ID")]
        public string CloneFrom
        {
            get
            {
                return (string)ViewState["CloneFrom"];
            }
            set
            {
                if (null != value && String.Empty == value.Trim())
                    throw new ArgumentNullException("CloneFrom", "The Value of property CloneFrom can not be empty string!");
                if (ID.Equals(value, StringComparison.OrdinalIgnoreCase))
                    throw new ArgumentException("The property value of CloneFrom can not be set to control itself!", "CloneFrom");
                ViewState["CloneFrom"] = value;
            }
        }

        ///// <include file='AspNetPagerDocs.xml' path='AspNetPagerDoc/Property[@name="EnableTheming"]/*'/>
        public override bool EnableTheming
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.EnableTheming;
                return base.EnableTheming;
            }
            set
            {
                base.EnableTheming = value;
            }
        }

        ///// <include file='AspNetPagerDocs.xml' path='AspNetPagerDoc/Property[@name="SkinID"]/*'/>
        public override string SkinID
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.SkinID;
                return base.SkinID;
            }
            set
            {
                base.SkinID = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(false),
        Description("是否使用Url分頁")]
        public bool EnableUrlRewriting
        {
            get
            {
                object obj = ViewState["UrlRewriting"];
                if (null == obj)
                {
                    if (null != cloneFrom)
                        return cloneFrom.EnableUrlRewriting;
                    return false;
                }
                return (bool)obj;
            }
            set
            {
                ViewState["UrlRewriting"] = value;
                if (value)
                    UrlPaging = true;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(false),
        Description("返回頁面")]
        public string UrlRewritePattern
        {
            get
            {
                object obj = ViewState["URPattern"];
                if (null == obj)
                {
                    if (null != cloneFrom)
                        return cloneFrom.UrlRewritePattern;
                    if (EnableUrlRewriting)
                    {
                        if (!DesignMode)
                        {
                            string filePath = Page.Request.FilePath;
                            return Path.GetFileNameWithoutExtension(filePath) + "_{0}" + Path.GetExtension(filePath);
                        }
                    }
                    return null;
                }
                return (string)obj;
            }
            set
            {
                ViewState["URPattern"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(false),
        Description("是否總是顯示分頁控件")]
        public bool AlwaysShow
        {
            get
            {
                object obj = ViewState["AlwaysShow"];
                if (null == obj)
                {
                    if (null != cloneFrom)
                        return cloneFrom.AlwaysShow;
                    return false;
                }
                return (bool)obj;
            }
            set
            {
                ViewState["AlwaysShow"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(true),
        Description("是否總是顯示第一頁和最後一頁")]
        public bool AlwaysShowFirstLastPageNumber
        {
            get
            {
                object obj = ViewState["AlwaysShowFirstLastPageNumber"];
                if (null == obj)
                {
                    if (null != cloneFrom)
                        return cloneFrom.AlwaysShowFirstLastPageNumber;
                    return false;
                }
                return (bool)obj;
            }
            set
            {
                ViewState["AlwaysShowFirstLastPageNumber"] = value;
            }
        }

        ///// <include file='AspNetPagerDocs.xml' path='AspNetPagerDoc/Property[@name="Wrap"]/*'/>
        public override bool Wrap
        {
            get
            {
                return base.Wrap;
            }
            set
            {
                base.Wrap = false;
            }
        }


        [Category("Behavior"),
        Browsable(true),
        DefaultValue("當前頁碼超出正常範圍"),
        Description("當前頁碼超出正常範圍提示信息。")]
        public string PageIndexOutOfRangeErrorMessage
        {
            get
            {
                object obj = ViewState["PIOutOfRangeErrorMsg"];
                if (null == obj)
                {
                    if (null != cloneFrom)
                        return cloneFrom.PageIndexOutOfRangeErrorMessage;
                    return "當前頁碼超出正常範圍";
                }
                return (string)obj;
            }
            set
            {
                ViewState["PIOutOfRangeErrorMsg"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue("當前頁碼無效"),
        Description("當前頁碼無效的錯誤提示信息。")]
        public string InvalidPageIndexErrorMessage
        {
            get
            {
                object obj = ViewState["InvalidPIErrorMsg"];
                if (null == obj)
                {
                    if (null != cloneFrom)
                        return cloneFrom.InvalidPageIndexErrorMessage;
                    return "當前頁碼無效";
                }
                return (string)obj;
            }
            set
            {
                ViewState["InvalidPIErrorMsg"] = value;
            }
        }

        [Category("Behavior"),
        Browsable(true),
        DefaultValue(LayoutType.Table),
        Description("分頁控件預設顯示方式。預設Table")]
        public LayoutType LayoutType
        {
            get
            {
                if (null != cloneFrom)
                    return cloneFrom.LayoutType;
                object obj = ViewState["LayoutType"];
                return (null == obj) ? LayoutType.Table : (LayoutType)obj;
            }
            set { ViewState["LayoutType"] = value; }
        }

        #endregion
    }
}