Question

Could any one explain, why am I not getting exception from blow code:

Action <Exception> myact = ( ) => {       
    throw new Exception( "test" );
  };

  Task myactTask = Task.Factory.StartNew( ( ) => myact);
  try {
    myactTask.Wait( );
    Console.WriteLine( myactTask.Id.ToString( ) );
    Console.WriteLine( myactTask.IsCompleted.ToString( ) );
  }
  catch( AggregateException ex ) {
    throw ex;
  }

on the other hand if replace Action “myact” with method “myact()” then I can get exception and it can be handeled with try catch block.

public static void myact( ) {
  throw new Exception( "test" );
}

Answer 1

Task myactTask = Task.Factory.StartNew( ( ) => myact);

This does not execute your action, it is a function that returns a reference to your Action.

Task myactTask = Task.Factory.StartNew(myact);

This will execute it and throw/catch the exception.