protected override void OnClosing(Window window, ICloseableViewModel viewModel)
{
CancelEventHandler handler = null;
handler = (s, e) =>
{
if (!viewModel.OnClosing())
{
e.Cancel = true;
return;
}
window.Closing -= handler;
};
window.Closing += handler;
}
protected override void OnClosing(RadWindow window, ICloseableViewModel viewModel)
{
EventHandler <WindowPreviewClosedEventArgs> handler = null;
handler = (s, e) =>
{
if (!viewModel.OnClosing())
{
e.Cancel = true;
return;
}
window.PreviewClosed -= handler;
};
window.PreviewClosed += handler;
}