Dispatcher.Invoke在vs2010中工作但在vs2008中给出错误

Question

I have to submit my WPF project tomorrow morning; it is running perfectly in VS 2010 but giving error in VS 2008 (.NET 3.5 in both case) using C#.

I am using a timer using Dispatcher.Invoke but in VS 2008 it is giving error :

Error 163
The best overloaded method match for System.Windows.Threading.Dispatcher.Invoke(System.Windows.Threading.DispatcherPriority, System.Delegate) has some invalid argument.

The below code is giving the error:

Dispatcher.Invoke(new Action(() =>
{
    // ANY ACTIONS HERE
    .. some task
}), null);

The code must work in VS 2008.

Answer 1

It sounds like the VS 2008 build is targeting .NET 3.0, not 3.5. The overload you're using was added in .NET 3.5, and the error message suggests that .NET 3.0 is being found.

You could easily rework the call to work using the 3.0 overload via:

Dispatcher.Invoke(DispatcherPriority.Normal, new Action(() =>
   {
      // ...some task
   }));