GridSummaryRowDescriptor if Event for clicking on the column

Hi Gregory, 

Thanks for using Syncfusion product. 

To add the summary while click on the column, you could use the GridTableCellStyleInfo and SummaryRows in TableControlCellClick event. Please refer the following code example, 

Code example 

this.gridGroupingControl1.TableControlCellClick += GridGroupingControl1_TableControlCellClick;    private void GridGroupingControl1_TableControlCellClick(object sender, GridTableControlCellClickEventArgs e)  {      if (e.TableControl.CurrentCell.MoveFromColIndex == e.TableControl.CurrentCell.ColIndex)          return;        GridTableCellStyleInfo style = e.TableControl.GetTableViewStyleInfo(e.Inner.RowIndex, e.Inner.ColIndex);      if (style.CellValueType == typeof(int))      {          if (style.TableCellIdentity != null && style.TableCellIdentity.Column != null)          {              string columnName = style.TableCellIdentity.Column.Name;              if (this.gridGroupingControl1.TableDescriptor.SummaryRows.Count > 0)                  //Clear the previous summary rows to add the                   this.gridGroupingControl1.TableDescriptor.SummaryRows.Clear();                GridSummaryColumnDescriptor scd = new GridSummaryColumnDescriptor();              scd.SummaryType = Syncfusion.Grouping.SummaryType.Int32Aggregate;              scd.Format = "{Sum}";              scd.DataMember = columnName;              scd.Name = "SumOf" + columnName;                GridSummaryRowDescriptor srd = new GridSummaryRowDescriptor("Row1", scd);              this.gridGroupingControl1.TableDescriptor.SummaryRows.Add(srd);              //To update the summary.              this.gridGroupingControl1.TableDescriptor.EnsureSummaryDescriptors();          }      }  }

 

Sample link: http://www.syncfusion.com/downloads/support/directtrac/general/ze/CS-467849497  

Regards, 

Arulraj A 

Hi Gregory, 

Thanks for your update. 

Query	Response
after clicking the next column, GridSummaryColumnDescripto did not disappear so that the second, third	To add the new column, you could create the GridsummaryColumnDescriptor for that column the add this summary column in SummaryRows collection.  If want to remove the column from summary columns when click on the same column, you could check and remove that column from SummaryColumns collection. Please refer the following code example  Code example  private void GridGroupingControl1_TableControlCellClick(object sender, GridTableControlCellClickEventArgs e)  {      GridTableCellStyleInfo style = e.TableControl.GetTableViewStyleInfo(e.Inner.RowIndex, e.Inner.ColIndex);      if (style.CellValueType == typeof(int))      {          if (style.TableCellIdentity != null && style.TableCellIdentity.Column != null)          {              string columnName = style.TableCellIdentity.Column.Name;                GridSummaryColumnDescriptor scd = null;              if (this.gridGroupingControl1.TableDescriptor.SummaryRows.Count == 0)              {                  scd = AddSummaryColumn(columnName);                  GridSummaryRowDescriptor srd = new GridSummaryRowDescriptor();                  this.gridGroupingControl1.TableDescriptor.SummaryRows.Add(srd);              }                GridSummaryRowDescriptor summaryRow = this.gridGroupingControl1.TableDescriptor.SummaryRows[0];              var summarycolDescriptor = summaryRow.SummaryColumns.Cast<GridSummaryColumnDescriptor>().Where(x => x.DataMember == columnName);              if (summarycolDescriptor.Count() > 0)              {                  var value = summarycolDescriptor.ToList()[0];                  summaryRow.SummaryColumns.Remove(value);              }              else              {                  scd = AddSummaryColumn(columnName);                  summaryRow.SummaryColumns.Add(scd);                }              //To update the summary.              this.gridGroupingControl1.TableDescriptor.EnsureSummaryDescriptors();          }      }  }
when we click the second time in the same column - it should disappear only in what we clicked a second time  - when we click the third time it adds again

Sample link: http://www.syncfusion.com/downloads/support/directtrac/general/ze/CS-290844632  

Regards, 

Arulraj A