// Gives event subscriber a chance to prevent
// the dialog from closing, based on
// the current state of the app and the button
// used to commit. Note that we don't
// have full access at this stage to
// the full dialog state.
internal int RaiseClosingEvent(int id)
{
EventHandler <TaskDialogClosingEventArgs> handler = Closing;
if (handler != null)
{
TaskDialogButtonBase customButton = null;
TaskDialogClosingEventArgs e = new TaskDialogClosingEventArgs();
// Try to identify the button - is it a standard one?
TaskDialogStandardButtons buttonClicked = MapButtonIdToStandardButton(id);
// If not, it had better be a custom button...
if (buttonClicked == TaskDialogStandardButtons.None)
{
customButton = GetButtonForId(id);
// ... or we have a problem.
if (customButton == null)
{
throw new InvalidOperationException("Bad button ID in closing event.");
}
e.CustomButton = customButton.Name;
e.TaskDialogResult = TaskDialogResult.CustomButtonClicked;
}
else
{
e.TaskDialogResult = (TaskDialogResult)buttonClicked;
}
// Raise the event and determine how to proceed.
handler(this, e);
if (e.Cancel)
{
return((int)HRESULT.S_FALSE);
}
}
// It's okay to let the dialog close.
return((int)HRESULT.S_OK);
}
// Gives event subscriber a chance to prevent
// the dialog from closing, based on
// the current state of the app and the button
// used to commit. Note that we don't
// have full access at this stage to
// the full dialog state.
internal int RaiseClosingEvent(int id)
{
EventHandler<TaskDialogClosingEventArgs> handler = Closing;
if (handler != null)
{
TaskDialogButtonBase customButton = null;
TaskDialogClosingEventArgs e = new TaskDialogClosingEventArgs();
// Try to identify the button - is it a standard one?
TaskDialogStandardButtons buttonClicked = MapButtonIdToStandardButton(id);
// If not, it had better be a custom button...
if (buttonClicked == TaskDialogStandardButtons.None)
{
customButton = GetButtonForId(id);
// ... or we have a problem.
if (customButton == null)
throw new InvalidOperationException("Bad button ID in closing event.");
e.CustomButton = customButton.Name;
e.TaskDialogResult = TaskDialogResult.CustomButtonClicked;
}
else
e.TaskDialogResult = (TaskDialogResult)buttonClicked;
// Raise the event and determine how to proceed.
handler(this, e);
if (e.Cancel)
return (int)HRESULT.S_FALSE;
}
// It's okay to let the dialog close.
return (int)HRESULT.S_OK;
}
void dialog_Closing(object sender, TaskDialogClosingEventArgs e)
{
Console.WriteLine(e.TaskDialogResult);
}
private static void Td_Closing( object sender, TaskDialogClosingEventArgs e )
{
_buttonPressed = e.CustomButton;
}
