using System.Collections.Specialized;

namespace OT.Controls.DataPager
{
    public partial class Pager
    {
        #region IPostBackEventHandler Implementation

        ///// <include file='AspNetPagerDocs.xml' path='AspNetPagerDoc/Method[@name="RaisePostBackEvent"]/*'/>
        public void RaisePostBackEvent(string args)
        {
            int pageIndex = CurrentPageIndex;
            try
            {
                if (string.IsNullOrEmpty(args))
                    args = inputPageIndex;
                pageIndex = int.Parse(args);
            }
            catch { }
            PageChangingEventArgs pcArgs = new PageChangingEventArgs(pageIndex);
            if (cloneFrom != null)
                cloneFrom.OnPageChanging(pcArgs);
            else
                OnPageChanging(pcArgs);
        }

        #endregion

        #region IPostBackDataHandler Implementation

        ///// <include file='AspNetPagerDocs.xml' path='AspNetPagerDoc/Method[@name="LoadPostData"]/*'/>
        public virtual bool LoadPostData(string pkey, NameValueCollection pcol)
        {
            string str = pcol[UniqueID + "_input"];
            if (str != null && str.Trim().Length > 0)
            {
                try
                {
                    int pindex = int.Parse(str);
                    if (pindex > 0 && pindex <= PageCount)
                    {
                        inputPageIndex = str;
                        Page.RegisterRequiresRaiseEvent(this);
                    }
                }
                catch { }
            }
            return false;
        }

        ///// <include file='AspNetPagerDocs.xml' path='AspNetPagerDoc/Method[@name="RaisePostDataChangedEvent"]/*'/>
        public virtual void RaisePostDataChangedEvent() { }

        #endregion
    }
}