Get New and Old Value in WinForms GridDataBoundGrid

28 Apr 20213 minutes to read

This page explains How to Get the New Value and Old Value when an Item is Selected in a Combobox Cell and more details.

How to Get the New Value and Old Value when an Item is Selected in a Combobox Cell

CurrentCellCloseDropDown event gets triggered when a dropdown is closed in a grid cell. The new value of ComboBox can be obtained from CurrentCell’s Renderer property and old value can be obtained from the grid.

C#

GridCurrentCell cc;
//Handles CurrentCellCloseDropDown.
private void gridDataBoundGrid1_CurrentCellCloseDropDown(object sender, Syncfusion.Windows.Forms.PopupClosedEventArgs e)
{
    cc= this.gridDataBoundGrid1.CurrentCell;
    Console.WriteLine(e.PopupCloseType.ToString());

	//Uses Renderer.GetCellValue() to retrieve the new cell value.
    Console.WriteLine("New Value {0}",cc.Renderer.GetCellValue());

	//Retrieves the old value. 
    Console.WriteLine("Old Value {0}",this.gridDataBoundGrid1[cc.RowIndex,cc.ColIndex].CellValue.ToString());
}

//Handle CurrentCellCloseDropDown.
private void gridControl1_CurrentCellCloseDropDown(object sender, Syncfusion.Windows.Forms.PopupClosedEventArgs e)
{
    cc= this.gridControl1.CurrentCell;
    Console.WriteLine(e.PopupCloseType.ToString());

	//Uses Renderer.GetCellValue() to retrieve the new cell value.
    Console.WriteLine("New Value {0}",cc.Renderer.GetCellValue()); 
	
	//Retrieves the old value.
    Console.WriteLine("Old Value {0}",this.gridControl1[cc.RowIndex,cc.ColIndex].CellValue.ToString());
}

VB.NET

Private cc As GridCurrentCell
'Handles CurrentCellCloseDropDown.
Private Sub gridDataBoundGrid1_CurrentCellCloseDropDown(ByVal sender As Object, ByVal e As Syncfusion.Windows.Forms.PopupClosedEventArgs)
    cc= Me.gridDataBoundGrid1.CurrentCell
    Console.WriteLine(e.PopupCloseType.ToString())

    'Uses Renderer.GetCellValue() to retrieve the new cell value.
    Console.WriteLine("New Value {0}",cc.Renderer.GetCellValue())
	
    'Retrieves the old value.
    Console.WriteLine("Old Value{0}",Me.gridDataBoundGrid1(cc.RowIndex,cc.ColIndex).CellValue. ToString())
End Sub

'Handles CurrentCellCloseDropDown.
Private Sub gridControl1_CurrentCellCloseDropDown(ByVal sender As Object, ByVal e As Syncfusion.Windows.Forms.PopupClosedEventArgs)
     cc= Me.gridControl1.CurrentCell
     Console.WriteLine(e.PopupCloseType.ToString())

     'Uses Renderer.GetCellValue() to retrieve the new cell value.
     Console.WriteLine("New Value {0}",cc.Renderer.GetCellValue())

     'Retrieves the old value.
     Console.WriteLine("Old Value {0}",Me.gridControl1(cc.RowIndex,cc.ColIndex).CellValue.ToString())

End Sub