2022/11/15 Updated

Form1.Designer.cs

@@ -57,14 +57,15 @@ namespace ExportDataToFile
             this.dgvExportList = new System.Windows.Forms.DataGridView();
             this.label11 = new System.Windows.Forms.Label();
             this.dgvColumnMapping = new System.Windows.Forms.DataGridView();
-            this.txtWhere = new System.Windows.Forms.TextBox();
-            this.label13 = new System.Windows.Forms.Label();
-            this.label14 = new System.Windows.Forms.Label();
-            this.cbTargetTable = new System.Windows.Forms.ComboBox();
             this.clExpColumn = new System.Windows.Forms.DataGridViewCheckBoxColumn();
             this.clClean = new System.Windows.Forms.DataGridViewButtonColumn();
             this.clSourceColumn = new System.Windows.Forms.DataGridViewTextBoxColumn();
             this.clTargetColumn = new System.Windows.Forms.DataGridViewComboBoxColumn();
+            this.txtWhere = new System.Windows.Forms.TextBox();
+            this.label13 = new System.Windows.Forms.Label();
+            this.label14 = new System.Windows.Forms.Label();
+            this.cbTargetTable = new System.Windows.Forms.ComboBox();
+            this.btnMapping = new System.Windows.Forms.Button();
             this.clExport = new System.Windows.Forms.DataGridViewCheckBoxColumn();
             this.clCancel = new System.Windows.Forms.DataGridViewButtonColumn();
             this.clSourceTable = new System.Windows.Forms.DataGridViewTextBoxColumn();
@@ -381,11 +382,42 @@ namespace ExportDataToFile
             this.dgvColumnMapping.Location = new System.Drawing.Point(1297, 180);
             this.dgvColumnMapping.Name = "dgvColumnMapping";
             this.dgvColumnMapping.RowTemplate.Height = 25;
-            this.dgvColumnMapping.Size = new System.Drawing.Size(487, 373);
+            this.dgvColumnMapping.Size = new System.Drawing.Size(487, 342);
             this.dgvColumnMapping.TabIndex = 45;
             this.dgvColumnMapping.CellContentClick += new System.Windows.Forms.DataGridViewCellEventHandler(this.dgvColumnMapping_CellContentClick);
             this.dgvColumnMapping.CellEndEdit += new System.Windows.Forms.DataGridViewCellEventHandler(this.dgvColumnMapping_CellEndEdit);
             // 
+            // clExpColumn
+            // 
+            this.clExpColumn.HeaderText = "匯出";
+            this.clExpColumn.Name = "clExpColumn";
+            this.clExpColumn.Resizable = System.Windows.Forms.DataGridViewTriState.True;
+            this.clExpColumn.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.Automatic;
+            this.clExpColumn.Width = 65;
+            // 
+            // clClean
+            // 
+            this.clClean.HeaderText = "清除";
+            this.clClean.Name = "clClean";
+            this.clClean.Width = 50;
+            // 
+            // clSourceColumn
+            // 
+            this.clSourceColumn.DataPropertyName = "COLUMN_NAME";
+            this.clSourceColumn.HeaderText = "來源欄位";
+            this.clSourceColumn.Name = "clSourceColumn";
+            this.clSourceColumn.ReadOnly = true;
+            this.clSourceColumn.Resizable = System.Windows.Forms.DataGridViewTriState.True;
+            this.clSourceColumn.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.NotSortable;
+            this.clSourceColumn.Width = 200;
+            // 
+            // clTargetColumn
+            // 
+            this.clTargetColumn.HeaderText = "目標欄位";
+            this.clTargetColumn.Name = "clTargetColumn";
+            this.clTargetColumn.Resizable = System.Windows.Forms.DataGridViewTriState.True;
+            this.clTargetColumn.Width = 200;
+            // 
             // txtWhere
             // 
             this.txtWhere.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
@@ -434,45 +466,31 @@ namespace ExportDataToFile
             this.cbTargetTable.ValueMember = "TableName";
             this.cbTargetTable.SelectedIndexChanged += new System.EventHandler(this.cbTargetTable_SelectedIndexChanged);
             // 
-            // clExpColumn
+            // btnMapping
             // 
-            this.clExpColumn.HeaderText = "匯出";
-            this.clExpColumn.Name = "clExpColumn";
-            this.clExpColumn.Resizable = System.Windows.Forms.DataGridViewTriState.True;
-            this.clExpColumn.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.Automatic;
-            this.clExpColumn.Width = 65;
-            // 
-            // clClean
-            // 
-            this.clClean.HeaderText = "清除";
-            this.clClean.Name = "clClean";
-            this.clClean.Width = 50;
-            // 
-            // clSourceColumn
-            // 
-            this.clSourceColumn.DataPropertyName = "COLUMN_NAME";
-            this.clSourceColumn.HeaderText = "來源欄位";
-            this.clSourceColumn.Name = "clSourceColumn";
-            this.clSourceColumn.ReadOnly = true;
-            this.clSourceColumn.Resizable = System.Windows.Forms.DataGridViewTriState.True;
-            this.clSourceColumn.Width = 200;
-            // 
-            // clTargetColumn
-            // 
-            this.clTargetColumn.HeaderText = "目標欄位";
-            this.clTargetColumn.Name = "clTargetColumn";
-            this.clTargetColumn.Resizable = System.Windows.Forms.DataGridViewTriState.True;
-            this.clTargetColumn.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.Automatic;
-            this.clTargetColumn.Width = 200;
+            this.btnMapping.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
+            this.btnMapping.Location = new System.Drawing.Point(1697, 528);
+            this.btnMapping.Name = "btnMapping";
+            this.btnMapping.Size = new System.Drawing.Size(87, 33);
+            this.btnMapping.TabIndex = 50;
+            this.btnMapping.Text = "欄位對應";
+            this.btnMapping.UseVisualStyleBackColor = true;
+            this.btnMapping.Click += new System.EventHandler(this.btnMapping_Click);
             // 
             // clExport
             // 
+            this.clExport.FalseValue = "false";
+            this.clExport.Frozen = true;
             this.clExport.HeaderText = "匯出";
+            this.clExport.IndeterminateValue = "false";
             this.clExport.Name = "clExport";
+            this.clExport.ReadOnly = true;
+            this.clExport.TrueValue = "true";
             this.clExport.Width = 55;
             // 
             // clCancel
             // 
+            this.clCancel.Frozen = true;
             this.clCancel.HeaderText = "清除";
             this.clCancel.Name = "clCancel";
             this.clCancel.Text = "Clean";
@@ -481,12 +499,13 @@ namespace ExportDataToFile
             // clSourceTable
             // 
             this.clSourceTable.DataPropertyName = "TableName";
+            this.clSourceTable.Frozen = true;
             this.clSourceTable.HeaderText = "來源資料表名稱";
             this.clSourceTable.Name = "clSourceTable";
             this.clSourceTable.ReadOnly = true;
             this.clSourceTable.Resizable = System.Windows.Forms.DataGridViewTriState.True;
             this.clSourceTable.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.NotSortable;
-            this.clSourceTable.Width = 200;
+            this.clSourceTable.Width = 250;
             // 
             // clTargetTable
             // 
@@ -495,7 +514,7 @@ namespace ExportDataToFile
             this.clTargetTable.ReadOnly = true;
             this.clTargetTable.Resizable = System.Windows.Forms.DataGridViewTriState.True;
             this.clTargetTable.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.NotSortable;
-            this.clTargetTable.Width = 130;
+            this.clTargetTable.Width = 250;
             // 
             // clTableDel
             // 
@@ -532,6 +551,7 @@ namespace ExportDataToFile
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
             this.BackColor = System.Drawing.SystemColors.ControlDarkDark;
             this.ClientSize = new System.Drawing.Size(1796, 1061);
+            this.Controls.Add(this.btnMapping);
             this.Controls.Add(this.cbTargetTable);
             this.Controls.Add(this.label14);
             this.Controls.Add(this.txtWhere);
@@ -570,6 +590,7 @@ namespace ExportDataToFile
             this.Name = "Form1";
             this.Text = "資料匯出程式";
             this.WindowState = System.Windows.Forms.FormWindowState.Maximized;
+            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.Form1_FormClosing);
             ((System.ComponentModel.ISupportInitialize)(this.dgvExportList)).EndInit();
             ((System.ComponentModel.ISupportInitialize)(this.dgvColumnMapping)).EndInit();
             this.ResumeLayout(false);
@@ -614,6 +635,7 @@ namespace ExportDataToFile
         private System.Windows.Forms.DataGridViewButtonColumn clClean;
         private System.Windows.Forms.DataGridViewTextBoxColumn clSourceColumn;
         private System.Windows.Forms.DataGridViewComboBoxColumn clTargetColumn;
+        private System.Windows.Forms.Button btnMapping;
         private System.Windows.Forms.DataGridViewCheckBoxColumn clExport;
         private System.Windows.Forms.DataGridViewButtonColumn clCancel;
         private System.Windows.Forms.DataGridViewTextBoxColumn clSourceTable;

Form1.cs

@@ -141,29 +141,8 @@ namespace ExportDataToFile
         private void dgvExportList_CellClick(object sender, DataGridViewCellEventArgs e)
         {
             try
-            { 
-                if (e.RowIndex != -1)
-                {
-                    intExportIndex = e.RowIndex;
-                    if (dgvExportList.Rows[e.RowIndex].Cells["clTargetTable"].Value != null)
-                    {
-                        cbTargetTable.SelectedValue = dgvExportList.Rows[e.RowIndex].Cells["clTargetTable"].Value;                    
-                    }
-                    else
-                    {
-                        cbTargetTable.SelectedValue = dgvExportList.Rows[e.RowIndex].Cells["clSourceTable"].Value;
-                    }
-                    if (cbTargetTable.SelectedValue != null)
-                    {
-                        ShowMSSQLSourceColumnList(sqlSourceConn, cbTargetTable.SelectedValue.ToString());
-                    }
-
-                    //預設所有欄位均匯出
-                    foreach (DataGridViewRow dgRow in dgvColumnMapping.Rows)
-                    {
-                        dgRow.Cells["clExpColumn"].Value = true;
-                    }
-                }
+            {
+                LocatedTarget(e.RowIndex);
             }
             catch (Exception ex)
             {
@@ -174,18 +153,16 @@ namespace ExportDataToFile
         private void dgvExportList_CellContentClick(object sender, DataGridViewCellEventArgs e)
         {
             try
-            { 
+            {
                 var senderGrid = (DataGridView)sender;
-                if (senderGrid.Columns[e.ColumnIndex] is DataGridViewButtonColumn && e.RowIndex >= 0)
+
+                if (e.RowIndex >= 0)
                 {
-                    senderGrid.Rows[e.RowIndex].Cells["clExport"].Value = false;
-                    senderGrid.Rows[e.RowIndex].Cells["clTargetTable"].Value = "";
-                    senderGrid.Rows[e.RowIndex].Cells["clTableDel"].Value = false;
-                    senderGrid.Rows[e.RowIndex].Cells["clDataTrim"].Value = false;
-                    senderGrid.Rows[e.RowIndex].Cells["clMaxRecord"].Value = "";
-                    senderGrid.Rows[e.RowIndex].Cells["clWhere"].Value = "";
-                    senderGrid.Rows[e.RowIndex].Cells["clMappingData"].Value = "";
-                    txtWhere.Text = "";
+                    //清除該列資料
+                    if (senderGrid.Columns[e.ColumnIndex] is DataGridViewButtonColumn)
+                    {
+                        CleanExpRow(dgvExportList, e.RowIndex);
+                    }
                 }
             }
             catch (Exception ex)
@@ -242,11 +219,11 @@ namespace ExportDataToFile
             try
             {
                 var senderGrid = (DataGridView)sender;
+                //觸發清除事件
                 if (senderGrid.Columns[e.ColumnIndex] is DataGridViewButtonColumn && e.RowIndex >= 0)
                 {
                     senderGrid.Rows[e.RowIndex].Cells["clExpColumn"].Value = false;
-                    ((DataGridViewComboBoxCell)senderGrid.Rows[e.RowIndex].Cells["clTargetColumn"]).Value = null;                    
-                    txtWhere.Text = "";
+                    ((DataGridViewComboBoxCell)senderGrid.Rows[e.RowIndex].Cells["clTargetColumn"]).Value = null;                      
                 }
             }
             catch (Exception ex)
@@ -259,10 +236,12 @@ namespace ExportDataToFile
         {
             try
             {
-                dgvColumnMapping.Rows[e.RowIndex].Cells["clExpColumn"].Value = true;
-                dgvExportList.Rows[intExportIndex].Cells["clExport"].Value = true;
-                //設定來源與目標的資料表對應
-                dgvExportList.Rows[intExportIndex].Cells["clTargetTable"].Value = cbTargetTable.SelectedValue.ToString();
+                if (cbTargetTable.Enabled)
+                {
+                    //dgvColumnMapping.Rows[e.RowIndex].Cells["clExpColumn"].Value = true;
+                    //dgvExportList.Rows[intExportIndex].Cells["clExport"].Value = true;
+                    
+                }
             }
             catch (Exception ex)
             {
@@ -280,8 +259,84 @@ namespace ExportDataToFile
             }
         }
 
+        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
+        {
+            sqlSourceConn.Close();
+            sqlSourceConn = null;
+            sqlTargetConn.Close();
+            sqlTargetConn = null;
+        }
+
+        private void btnMapping_Click(object sender, EventArgs e)
+        {
+            //自動預設產生所有的Mapping檔案
+            dgvExportList.Rows[intExportIndex].Cells["clMappingData"].Value = GenMappingColumn();
+            dgvExportList.Rows[intExportIndex].Cells["clExport"].Value = true;
+            //設定來源與目標的資料表對應
+            if (cbTargetTable.SelectedValue != null)
+            {
+                dgvExportList.Rows[intExportIndex].Cells["clTargetTable"].Value = cbTargetTable.SelectedValue.ToString();
+            }
+        }
+
         #region 自定義功能
 
+        #region MS-SQL
+        private void ShowMSSQLSourceTables(SqlConnection sqlConn)
+        {
+            try
+            {
+                string strGetMSSQLTableList = "Select [name] as TableName from sys.tables order by name";
+                dgvExportList.DataSource = MSSQLUtility.GetSQLResult(strGetMSSQLTableList, sqlConn).Tables["Result"];
+            }
+            catch (Exception ex)
+            {
+                ErrorHandler.WriteErrorLog("Form1.cs", ex);
+            }
+        }
+
+        private void ShowMSSQLTargetTableList(SqlConnection sqlConn)
+        {
+            try
+            {
+                string strGetMSSQLTableList = "Select [name] as TableName from sys.tables order by name";
+                cbTargetTable.DataSource = MSSQLUtility.GetSQLResult(strGetMSSQLTableList, sqlConn).Tables["Result"];
+            }
+            catch (Exception ex)
+            {
+                ErrorHandler.WriteErrorLog("Form1.cs", ex);
+            }
+        }
+
+        private void ShowMSSQLSourceColumnList(SqlConnection sqlConn, string strTableName)
+        {
+            try
+            {
+                string strGetMSSQLColumnList = "Select COLUMN_NAME From INFORMATION_SCHEMA.COLUMNS Where TABLE_NAME ='" + strTableName + "' Order by ORDINAL_POSITION";
+                dgvColumnMapping.DataSource = MSSQLUtility.GetSQLResult(strGetMSSQLColumnList, sqlConn).Tables["Result"];
+            }
+            catch (Exception ex)
+            {
+                ErrorHandler.WriteErrorLog("Form1.cs", ex);
+            }
+        }
+        private void ShowMSSQLTargetColumnList(SqlConnection sqlConn, string strTableName)
+        {
+            try
+            {
+                string strGetMSSQLColumnList = "Select COLUMN_NAME From INFORMATION_SCHEMA.COLUMNS Where TABLE_NAME ='" + strTableName + "' Order by ORDINAL_POSITION";
+                this.clTargetColumn.DisplayMember = "COLUMN_NAME";
+                this.clTargetColumn.DataSource = MSSQLUtility.GetSQLResult(strGetMSSQLColumnList, sqlConn).Tables["Result"];
+                Application.DoEvents();
+            }
+            catch (Exception ex)
+            {
+                ErrorHandler.WriteErrorLog("Form1.cs", ex);
+            }
+        }
+
+        #endregion  //End of MS-SQL
+
         private string CheckSource()
         {
             try
@@ -435,64 +490,157 @@ namespace ExportDataToFile
                 ErrorHandler.WriteErrorLog("Form1.cs", ex);
             }
         }
-
-        #region MS-SQL
-        private void ShowMSSQLSourceTables(SqlConnection sqlConn)
+        
+        private string GenMappingColumn()
         {
-            try
-            {
-                string strGetMSSQLTableList = "Select [name] as TableName from sys.tables order by name";
-                dgvExportList.DataSource = MSSQLUtility.GetSQLResult(strGetMSSQLTableList, sqlConn).Tables["Result"];
-            }
-            catch (Exception ex)
-            {
-                ErrorHandler.WriteErrorLog("Form1.cs", ex);
-            }
-        }
+            string strExportColumns = "";
+            string strSourceColumn = "";
+            string strTargetColumn = "";
 
-        private void ShowMSSQLTargetTableList(SqlConnection sqlConn)
-        {
-            try
+            //預設所有欄位均匯出
+            foreach (DataGridViewRow dgRow in dgvColumnMapping.Rows)
             {
-                string strGetMSSQLTableList = "Select [name] as TableName from sys.tables order by name";
-                cbTargetTable.DataSource = MSSQLUtility.GetSQLResult(strGetMSSQLTableList, sqlConn).Tables["Result"];
-            }
-            catch (Exception ex)
-            {
-                ErrorHandler.WriteErrorLog("Form1.cs", ex);
+                //處理下拉欄位空白的問題
+                if (dgRow.Cells["clExpColumn"].Value != null)
+                {
+                    if ((bool)dgRow.Cells["clExpColumn"].Value == true)
+                    {
+                        if (dgRow.Cells["clSourceColumn"].Value == null)
+                        {
+                            strSourceColumn = " ";
+                        }
+                        else
+                        {
+                            strSourceColumn = dgRow.Cells["clSourceColumn"].Value.ToString();
+                        }
+
+                        if (dgRow.Cells["clTargetColumn"].Value == null)
+                        {
+                            strTargetColumn = " ";
+                        }
+                        else
+                        {
+                            strTargetColumn = dgRow.Cells["clTargetColumn"].Value.ToString();
+                        }
+
+                        if (strExportColumns == "")
+                        {
+
+                            strExportColumns += strSourceColumn + "," + strTargetColumn;
+                        }
+                        else
+                        {
+                            strExportColumns += "|" + strSourceColumn + "," + strTargetColumn;
+                        }
+                    }
+                }
             }
+
+            return strExportColumns;
         }
 
-        private void ShowMSSQLSourceColumnList(SqlConnection sqlConn, string strTableName)
+        private void LocatedTarget(int intRowIndex)
         {
-            try
-            {
-                string strGetMSSQLColumnList = "Select COLUMN_NAME From INFORMATION_SCHEMA.COLUMNS Where TABLE_NAME ='" + strTableName + "' Order by ORDINAL_POSITION";
-                dgvColumnMapping.DataSource = MSSQLUtility.GetSQLResult(strGetMSSQLColumnList, sqlConn).Tables["Result"];
-            }
-            catch (Exception ex)
+            if (cbTargetClass.SelectedIndex >= 0 && cbTargetClass.Enabled == false)
             {
-                ErrorHandler.WriteErrorLog("Form1.cs", ex);
+                //cbTargetTable.SelectedValue = dgvExportList.Rows[intRowIndex].Cells["clSourceTable"].Value.ToString();
+
+                string strTarget = "";
+                string[] strColumnMapping = null;
+
+                if (intRowIndex != -1)
+                {
+                    intExportIndex = intRowIndex;
+
+                    //設定目標Table下拉式選單的內容
+                    if (dgvExportList.Rows[intRowIndex].Cells["clTargetTable"].Value != null && dgvExportList.Rows[intRowIndex].Cells["clTargetTable"].Value.ToString() != "")
+                    {
+                        strTarget = dgvExportList.Rows[intRowIndex].Cells["clTargetTable"].Value.ToString();
+                    }
+                    else
+                    {
+                        strTarget = dgvExportList.Rows[intRowIndex].Cells["clSourceTable"].Value.ToString();
+                    }
+
+                    cbTargetTable.SelectedValue = strTarget;
+
+                    //取得欄位對應字串陣列
+                    if (dgvExportList.Rows[intRowIndex].Cells["clMappingData"].Value != null)
+                    {
+                        strColumnMapping = dgvExportList.Rows[intRowIndex].Cells["clMappingData"].Value.ToString().Split('|');
+                    }
+
+                    
+                    //顯示欄位對應表的內容
+                    if (cbTargetTable.SelectedValue != null)
+                    {
+                        switch (cbTargetClass.SelectedItem.ToString().Trim())
+                        {
+                            case "MS-SQL":
+                                ShowMSSQLSourceColumnList(sqlSourceConn, strTarget.ToString());
+                                Application.DoEvents();
+                                break;
+                            case "MySQL":
+
+                                break;
+                            case "Oracle":
+
+                                break;
+                            case "PostgreSQL":
+
+                                break;
+                        }
+                    }
+
+                    if (strColumnMapping != null)
+                    {
+                        string strSourceColumn = "";
+                        string strTargetColumn = "";
+                        foreach (string strColumn in strColumnMapping)
+                        {
+                            strSourceColumn = strColumn.Substring(0, strColumn.IndexOf(',')).Trim();
+                            strTargetColumn = strColumn.Substring(strColumn.IndexOf(',') + 1).Trim();
+                            foreach (DataGridViewRow dgvRow in dgvColumnMapping.Rows)
+                            {
+                                if (dgvRow.Cells["clSourceColumn"].Value.ToString() == strSourceColumn)
+                                {
+                                    dgvRow.Cells[0].Value = true;
+                                }
+                            }
+                        }
+                    }
+                    else
+                    {
+                        //預設所有欄位均匯出
+                        foreach (DataGridViewRow dgRow in dgvColumnMapping.Rows)
+                        {
+                            ((DataGridViewCheckBoxCell)dgRow.Cells["clExpColumn"]).Value = true;
+                        }
+                    }
+                }
             }
         }
-        private void ShowMSSQLTargetColumnList(SqlConnection sqlConn, string strTableName)
+        
+        private void CleanExpRow(DataGridView senderGrid, int intRowIndex)
         {
-            try
-            {
-                string strGetMSSQLColumnList = "Select COLUMN_NAME From INFORMATION_SCHEMA.COLUMNS Where TABLE_NAME ='" + strTableName + "' Order by ORDINAL_POSITION";
-                this.clTargetColumn.DisplayMember = "COLUMN_NAME";
-                this.clTargetColumn.DataSource = MSSQLUtility.GetSQLResult(strGetMSSQLColumnList, sqlConn).Tables["Result"];
-                Application.DoEvents();
-            }
-            catch (Exception ex)
-            {
-                ErrorHandler.WriteErrorLog("Form1.cs", ex);
-            }
+            senderGrid.Rows[intRowIndex].Cells["clExport"].Value = false;
+            senderGrid.Rows[intRowIndex].Cells["clTargetTable"].Value = "";
+            senderGrid.Rows[intRowIndex].Cells["clTableDel"].Value = false;
+            senderGrid.Rows[intRowIndex].Cells["clDataTrim"].Value = false;
+            senderGrid.Rows[intRowIndex].Cells["clMaxRecord"].Value = "";
+            senderGrid.Rows[intRowIndex].Cells["clWhere"].Value = "";
+            senderGrid.Rows[intRowIndex].Cells["clMappingData"].Value = "";
+            CleanMappingRow(senderGrid, intRowIndex);
+            txtWhere.Text = "";
+            Application.DoEvents();
         }
 
-
-        #endregion
-
+        private void CleanMappingRow(DataGridView senderGrid,int intRowIndex)
+        { 
+            DataTable CleanTable = (DataTable)dgvColumnMapping.DataSource;
+            CleanTable.Rows.Clear();
+            dgvColumnMapping.DataSource = CleanTable;
+        }
         #endregion