Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All
Expand Minimize
Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here.

Compiler Error CS1599 

Error Message

Method or delegate cannot return type 'type'

Some types in the base class library, for example, TypedReference and ArgIterator cannot be used as return types.

The following sample generates CS1599:

// CS1599.cs
using System;

class MyClass
{
   public static void Main()
   {
   }

   public TypedReference Test1()   // CS1599
   {
      return null;
   }

   public ArgIterator Test2()   // CS1599
   {
      return null;
   }
}

Community Additions

ADD
Show:
© 2015 Microsoft