NGWS SDK Documentation  

This is preliminary documentation and subject to change.
To comment on this topic, please send us email at ngwssdk@microsoft.com. Thanks!

Compiler Error CS1019

Overloadable unary operator expected

You have a unary operator that returns a value of another class. If you want this conversion, you need to do an implicit or explicit cast.

The following sample generates CS1019:

public class ii {
   int i {
      get {
         return 0;
      }
   }
}

public class a {
   public static ii operator ii(a aa) { // CS1019
   // try either of the two following declarations
   //   public static implicit operator ii(a aa) {
   //   public static explicit operator ii(a aa) {
      return new ii();
   }
   public static void Main() {
   }
}