Cancel closing RadWindow.Confirm(...)

[Sandi Markon]

We use RadWindow in this way (from command in ViewModel):

RadWindow.Confirm(new DialogParameters{
  Content = new ContentPresenter {ContentTemplate = Template("SomeTemplateFromXamlWithTextBoxAndComboBox")},
  Closed = (o, e) => {
    if (there are some errors) return;
    do stuff if there are no errors
  }
});

In the end, windows is closed. But what we want is if there are errors, user should be notified with MessageBox and then RadWindow should remain open.

There is no "PreviewClosed" in RadWindow.Confirmed. We tried a simple RadWindow but then we would have to define our own buttons and we have problems binding events to them.

How could we achieve the desired behavior?

[Polya]

Hi Sandi Markon,

I suggest calling Show() or ShowDialog() to the confirm window if the criteria for pass is false:

if (e.DialogResult == true)
{
    if (this.txtBlock.Text == "AAA")
    {
        // do something
    }
    else
    {
        var confirmWindow = sender as RadWindow;
        confirmWindow.Closed -= OnConfirmClosed;
        confirmWindow.Closed += OnConfirmClosed;
        confirmWindow.ShowDialog();
    }
}

I've prepared a sample project demonstrating this approach. Please find it attached.
Hopefully this helps and is suitable for your scenario.

Regards,
Polya
Telerik

 

 

[Sandi Markon]

This works, thanks.