protected internal override bool RaiseClosingEvent(int buttonId)
{
TaskDialogClosingEventArgs args;
if ((int)TaskDialogCommonButtons.MinCustomControlId <= buttonId)
{
var control = FindButton(buttonId);
if (control == null)
{
throw new InvalidOperationException(Properties.DialogErrorMessages.TaskDialogInvalidateButtonId);
}
args = TaskDialogClosingEventArgs.Create(control);
}
else
{
args = TaskDialogClosingEventArgs.Create((TaskDialogCommonButtons)buttonId);
}
OnClosing(args);
return(!args.Cancel);
}
protected virtual void OnClosing(TaskDialogClosingEventArgs args)
{
this.Closing?.Invoke(this, args);
}