public static Task AttachAndRun(this FrameworkElement view, Action action) =>
view.AttachAndRun(() =>
{
action();
return(Task.FromResult(true));
});
public static Task AttachAndRun(this FrameworkElement view, Func <Task> action) =>
view.AttachAndRun(async() =>
{
await action();
return(true);
});
public static Task <T> AttachAndRun <T>(this FrameworkElement view, Func <T> action) =>
view.AttachAndRun(() =>
{
var result = action();
return(Task.FromResult(result));
});