Question

Can anyone explain what I need to do to get past this error?

“Cannot convert anonymous method to type ‘System.Windows.Threading.DispatcherPriority’ because it is not a delegate type”

    private void Test(object sender)
    {
        base.Dispatcher.BeginInvoke(delegate
        {
                       //some code

        }, new object[0]);
    }

Thanks

Answer 1

If you’re using .NET 3.5 SP1 and upwards, then you can add a reference to System.Windows.Presentation.dll and make sure you have using System.Windows.Threading; at the top of the file. It contains extension methods that are easier to use, and allow you to simply write:

base.Dispatcher.BeginInvoke(() => { /* some code */ });

If you’re using .NET 3.5 without SP1 or lower, then you’ll have to cast the delegate to a concrete delegate type:

base.Dispatcher.BeginInvoke((Action) delegate { /* some code */ }, new object[0]);