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Compiler Error CS0828

Cannot assign 'expression' to anonymous type property.

An anonymous type cannot be initialized with a null value or an unsafe type, or a method group or anonymous function.

To correct this error

  1. Either add a type declaration to the left side of the assignment, or change the expression on the right side so that it has an acceptable type.

Example

The following code generates CS0828 because a member of an anonymous type cannot be initialized with a null value.

// cs0828.cs  
using System;  
  
public class C  
{  
    public static int Main()  
    {  
        var a = 1;  
        var c = new { p1 = null }; // CS0828  
        return 1;  
    }  
}  

See also