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Compiler Error CS1908 

Error Message

The type of the argument to the DefaultValue attribute must match the parameter type

This error is generated when you use the wrong argument for the DefaultValueAttribute attribute value. Use a value that matches the parameter type.

Example

The following sample generates CS1908.

// CS1908.cs
// compile with: /target:library
using System.Runtime.InteropServices;

public interface ISomeInterface
{
   void Bad([Optional] [DefaultParameterValue("true")] bool b);   // CS1908

   void Good([Optional] [DefaultParameterValue(true)] bool b);   // OK
}

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