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Compiler Error CS0059

  • Article

Inconsistent accessibility: parameter type 'type' is less accessible than delegate 'delegate'

The return type and each of the types referenced in the formal parameter list of a method must be at least as accessible as the method itself. For more information, see Access Modifiers (C# Programming Guide).

Example

The following sample generates CS0059:

// CS0059.cs
class MyClass //defaults to private accessibility
// try the following line instead
// public class MyClass
{
}

public delegate void MyClassDel( MyClass myClass);   // CS0059

public class Program
{
    public static void Main()
    {
    }
}