Rank 1
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Iron
Hello
I have a grid view where I perform Cell validation and I change the Error Icon
This grid has EnterKeyMode set to EnterMovesToNextRow
When I enter an invalid value in a cell and validate by clicking on another cell I get the proper response, i.e. Error Message and modified error Icon
but When I validate the entry with a "Return" I get the error message but the error Icon remains the default and is not changed to my custom error Icon
Also, when I validate with Enter I get a "beep" but not when I validate by selecting another cell
Here is my code for changing the error Icon
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Private Sub gvPrize_ViewCellFormatting(sender As Object, e As CellFormattingEventArgs) Handles gvPrize.ViewCellFormatting
'Change Row Error Icon
If e.RowIndex > -1 Then
If TypeOf e.CellElement Is GridRowHeaderCellElement Then
Dim aCell As GridRowHeaderCellElement = CType(e.CellElement, GridRowHeaderCellElement)
Dim ip As ImagePrimitive = CType(aCell.Children(0), ImagePrimitive)
If ip.Image IsNot Nothing Then ip.Image = My.Resources.v2_error_16
End If
End If
End Sub
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2 Answers, 1 is accepted
Hi,
Thank you for your information, it was greatly appreciated. By using your code and adding CellValidating logic (which was copied from the Data validation article) I have managed to reproduce the scenario that you have described.
I would like to note that if you cancel the CellValidating event,the ViewCellFormatting event will not fire if you remain on the same row (e.g after pressing Enter). Therefore the modified error icon will not be applied. In order to trigger the ViewCellFormatting you could use InvalidateRow() method after canceling the CellValidating as follows. This will force the ViewCellFormatting event to be fired for this particular row:
Private Sub RadGridView1_CellValidating(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.CellValidatingEventArgs) Handles RadGridView1.CellValidating
Dim column As GridViewDataColumn = TryCast(e.Column, GridViewDataColumn)
If TypeOf e.Row Is GridViewDataRowInfo AndAlso column IsNot Nothing AndAlso column.Name = "CategoryName" Then
If String.IsNullOrEmpty(DirectCast(e.Value, String)) OrElse DirectCast(e.Value, String).Trim() = String.Empty Then
e.Cancel = True
DirectCast(e.Row, GridViewDataRowInfo).ErrorText = "Validation error!"
e.Row.InvalidateRow()
Else
DirectCast(e.Row, GridViewDataRowInfo).ErrorText = String.Empty
End If
End If
End Sub
Please do not hesitate to ask if you have further questions.
Regards,
Dimitar
Progress Telerik
Rank 1
Veteran
Iron
Hello Dimitar
Thanks a lot for your answer and for the time spent in reproducing the problem
Your suggested solution works perfectly
Thanks again