This documentation is archived and is not being maintained.

Compiler Warning (level 3) CS0219

The variable 'variable' is assigned but never used

The variable 'variable' is assigned but its value is never used

The compiler issues a level-three warning, when you declare and assign a variable, but do not use it.

The following sample generates CS0219:

// CS0219.cs
// compile with: /W:3
public class MyClass
   public static void Main()
      int a = 0;   // CS0219