MulticastDelegate and Exception handling: is it possible to wrap it all generically?

Question

When calling a Multicast Delegate one should use GetInvocationList to call one by one the delegate:

public void IterateAll()
{
    if( _doExecute != null )
          


        

Answer 1

Is the type of the delegate fixed? You'll need to either use quite a bit of reflection, or you need to implement one version for each possible parametercount just like there is one Action<...> type for it.

Should look similar to this(untested notepad code):

  public static Action WrapAction(Action a)
  {
   var invList = ((MultiCastDelegate)a).GetInvocationList();

   for (int i = 0; i < invList.Length; i++)
   {
    invList[i] = ()=>{try invList[i] catch {...} });
   }
   return (Action)MulticastDelegate.Combine(invList);
  }

And you probably need to add special case handling for single cast delegates.