private async Task OnAsync()
{
Debug.Assert(UIContext.CheckAccess());
await Task.Delay(100);
Debug.Assert(UIContext.CheckAccess());
throw new InvalidOperationException("Error on async execute.");
}
private Task OnTaskRun()
{
return(Task.Run(() =>
{
Debug.Assert(!UIContext.CheckAccess());
Thread.Sleep(100);
throw new InvalidOperationException("Error on a background Task.");
}));
}
private void OnUIContextRun()
{
Task.Run(() =>
{
Debug.Assert(!UIContext.CheckAccess());
Thread.Sleep(100);
UIContext.Run(new Action(() =>
{
Debug.Assert(UIContext.CheckAccess());
Thread.Sleep(100);
throw new InvalidOperationException("Error on a background Task.");
})).ObserveException();
}).ObserveException();
}
private void OnExecute()
{
Debug.Assert(UIContext.CheckAccess());
throw new InvalidOperationException("Error on execute.");
}
