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How to customize the error message in WinForms GridControl?

Platform: WinForms |
Control: GridControl |
Published Date: April 30, 2011 |
Last Revised Date: December 18, 2019

Customize the error message

When an invalid data format or data type is entered, an error message is displayed. The error message is like xx is not a valid value for Double. This error message can be customized.

Solution

You can handle the CurrentCellValidating event, validate and set the error message. The following code example gives a customized error message when a value other than double is entered.

C#

void gridControl1_CurrentCellValidating(object sender, CancelEventArgs e)
{
   GridCurrentCell cc = this.gridControl1.CurrentCell;
   //Set the dataformat to the column 2.
   if (cc.ColIndex == 2)
   {
      string newvalue = cc.Renderer.ControlText;
      try
      {
         double d = double.Parse(newvalue);
      }
      catch
      {
         //Display the error message.
         cc.ErrorMessage = "u r entered invalid dataformat";
         e.Cancel = true;
      }
   }
}

VB

Private Sub gridControl1_CurrentCellValidating(ByVal sender As Object, ByVal e As CancelEventArgs)
   Dim cc As GridCurrentCell = Me.gridControl1.CurrentCell
   'Set the dataformat to the column 2.
   If cc.ColIndex = 2 Then
     Dim newvalue As String = cc.Renderer.ControlText
     Try
        Dim d As Double = Double.Parse(newvalue)
     Catch
        'Display the error message.
        cc.ErrorMessage = "u r entered invalid dataformat"
        e.Cancel = True
     End Try
   End If
End Sub

On applying the properties, the grid looks like the following screenshot.

Custom message shows when an invalid data is entered

Figure 1: Custom message when an invalid data is entered

Samples:

C#: Customizing the error message

VB: Customizing the error message

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