private void OKButton_Click(object sender, RoutedEventArgs e)
{
// UIスレッドからの普通の呼び出しなのでOK
var d = new DrivedObject();
d.DoSomething();
}
private async void DispatcherButton_Click(object sender, RoutedEventArgs e)
{
// UIスレッド以外だがDispatcher経由での呼び出しなのでOK
var d = new DrivedObject();
await Task.Run(async() =>
{
if (!d.CheckAccess())
{
await d.Dispatcher.InvokeAsync(() => d.DoSomething()); // OK
}
});
}
private async void NGButton_Click(object sender, RoutedEventArgs e)
{
// UIスレッド以外からの呼び出しなので例外が出る
var d = new DrivedObject();
try
{
await Task.Run(() => d.DoSomething());
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}