protected override void OnCloseRequested(CloseEventHandlerArgs args)
{
if (!Modified)
{
base.OnCloseRequested(args);
return;
}
MessageBoxResult result = System.Windows.MessageBox.Show(
"Do you want to save changes before closing?", "Confirm",
MessageBoxButton.YesNoCancel, MessageBoxImage.Question);
if (result == MessageBoxResult.Yes)
{
Modified = true;
}
else if (result == MessageBoxResult.No)
{
Restore();
Modified = false;
}
else if (result == MessageBoxResult.Cancel)
{
return;
}
base.OnCloseRequested(args);
}
private void ViewModel_CloseRequested(object sender, CloseEventHandlerArgs args)
{
if (ViewModel.Modified)
{
ViewModel.CloseRequested -= ViewModel_CloseRequested;
Save();
}
}
void TabControlViewModel_CloseRequested(object sender, CloseEventHandlerArgs args)
{
BaseViewModel viewModel = sender as BaseViewModel;
OpenTabItems.Remove(GetTabFor(viewModel));
}