How to cancel an edit.

[Jose Simas]

Hi,

I have a grid with numeric data that can be edited by the user. If the user enters a non numeric value the edit should be cancelled and the cell value should revert to the original value (skipping validation). When the grid is bound to a DataTable I am able to do this using the CellValidating event as such:

private void OnManualSplitPointsValidating(object sender, GridViewCellValidatingEventArgs e)
        {
            if (Helper.IsNumeric(e.NewValue) == false)
            {
                var grid = (RadGridView) sender;
                grid.CancelEdit();
            }
        }

But when I apply this same code to a CSLA collection the line grid.CancelEdit() causes a row deletion. This may be a problem with the CSLA list but I wanted to check if there is a different way of reverting to the previous value (or if indeed this is supported at all).

I am using the latest Beta and .NET 4.0.

Cheers,
Jose

[Yavor Georgiev]

Hi Jose Simas,

 You can just set the cell as invalid. That way the user won't be able to complete the edit operation until the cell contains a valid value and the underlying data for the cell won't be modified.

Kind regards,
Yavor Georgiev
the Telerik team

[Jose Simas]

Hi,

I could indeed but I am being asked to revert to the previous value. As I said, it works just fine when the grid is bound to a DataTable but unfortunately it causes side effects when I call CancelEdit if it is bound to a CSLA collection. I post this thread to see if there was an alternate way of doing this.

Cheers,
Jose