Question

I get the following compilation error with the following source code:

Compilation Error:

Type of conditional expression cannot be determined because there is no implicit conversion between ” and ‘MyEnum’

Source Code

public enum MyEnum {     Value1, Value2, Value3 }  public class MyClass {     public MyClass() {}     public MyEnum? MyClassEnum { get; set; } }  public class Main() {    object x = new object();     MyClass mc = new MyClass()    {         MyClassEnum = Convert.IsDBNull(x) : null ?              (MyEnum) Enum.Parse(typeof(MyEnum), x.ToString(), true)    }; } 

How can I resolve this error?

Answer 1

I think you just need to cast the result of Enum.Parse to MyEnum?. This is the case with nullable ints at least. E.g.:

int? i; i = shouldBeNull ? null : (int?) 123; 

So:

MyClassEnum = Convert.IsDBNull(x)     ? null     : (MyEnum?) Enum.Parse(typeof(MyEnum), x.ToString(), true)