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Compiler Error CS0833

Visual Studio 2008

An anonymous type cannot have multiple properties with the same name.

An anonymous type, just like any type, cannot have two properties that have the same name.

To correct this error

  • Give each property in the type a unique name.

The following example generates CS0833:

// cs0833.cs
using System;

public class C
{
    public static int Main()
    {
        var c = new { p1 = 1, p1 = 2 }; // CS0833
        return 1;
    }
}

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