GGC Image in another column Header

[Administrator]

Hi there,

I'm trying to alter an image that has been drawn over another column heading.

The code to alter the image originally uses code found in this old article ...

http://www.syncfusion.com/support/forums/grid-windows/43676.aspx

But I need to be able to click on one column heading and then turn off the image on another column.

Any help would be gratefully appreciated.

Thanks
Ian S.

[Sri Rajan]

Hi Ian,

Thank you for your interest in Syncfusion products.

You need to handle TableControlQueryAllowSortColumn event and a flag variable to turn on or off the image on one header when you click on the another header cell. Please refer the below code for more details.

 Private Sub gridGroupingControl1_TableControlQueryAllowSortColumn(ByVal sender As Object, ByVal e As GridQueryAllowSortColumnEventArgs)
  If e.Column.Name = "Col0" Then
    If flag = 1 Then
      flag = 0
    Else
      flag = 1
    End If
  End If
 End Sub

 Private Sub gridGroupingControl1_TableControlCellDrawn(ByVal sender As Object, ByVal e As GridTableControlDrawCellEventArgs)
  If flag = 1 Then
    Dim style As GridTableCellStyleInfo = TryCast(e.Inner.Style, GridTableCellStyleInfo)
    If style.TableCellIdentity.TableCellType = GridTableCellType.ColumnHeaderCell AndAlso style.TableCellIdentity.Column IsNot Nothing AndAlso style.TableCellIdentity.Column.Name = "Col1" Then
     GridStaticCellRenderer.DrawImage(e.Inner.Graphics, Me.imageList1, 0, e.Inner.Bounds, False)
   End If
  End If
 End Sub

Here is the minimal sample which implements this task.
http://websamples.syncfusion.com/samples/grid.windows/F74709/main.htm

Please let me know if this helps.

Best Regards,
Srirajan