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Compiler Error CS1918

Members of property 'name' of type 'type' cannot be assigned with an object initializer because it is of a value type.

This error occurs when you try to use an object initializer to initialize the properties of a struct type that is itself a property of the class that is being initialized.

To correct this error

  1. If you must fully initialize the fields of the property in the object initializer, change the struct to a class type. Otherwise, initialize the struct members in a separate method call after you create the object by using the object initializer.

Example

The following example generates CS1918:

// cs1918.cs  
public struct MyStruct  
{  
    public int i;  
  
}  
public class Test  
{  
    private MyStruct str = new MyStruct();  
    public MyStruct Str  
    {  
        get  
        {  
            return str;  
        }  
    }  
    public static int Main()  
    {  
        Test t = new Test { Str = { i = 1 } }; // CS1918  
        return 0;  
    }  
}  

See also