RE: Control validation causes unexpected results

#1

Hi,

I'm not sure I understand your problem. The in the validating event you
determine that the value is not valid so the user is not allowed to leave the
control, but it does not prevent the value being set. If the user closes the
dialog by ALT-F4 or X he is free to do so. If you want to prevent the user
from closing the dialog if any of its content is invalid, override OnClosing()

--
Happy Coding!
Morten Wennevik [C# MVP]

"Angel Tsankov" wrote:

Quote:

Hello!

I encountered unexpected behaviour in a .NET 2.0 application. I put a
checkbox in a dialog and handled the Validating event
(checkbox_validation.OnValidating). All the handler does is

e.Cancel = true;

This results in the checkbox not changing its state the first time it is
clicked after the user has tried to close the dialog (e.g. by pressing
Alt+F4 or by clicking the Close button on the caption bar).

Can someone explain this behavior and/or suggest how to handle it?

Reagards,
Angel Tsankov

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RE: Control validation causes unexpected results

Dotnet Framework (WinForms Controls) microsoft.public.dotnet.framework.windowsforms.controls

RE: Control validation causes unexpected results - 12-11-2007 , 03:08 AM