How to use enum datatype in interface?
Is this possible?
public interface IParent1
{
string method1(Test enum);
}
public class Parent1 : IParent1
{
public enum Test
{
A,
B,
C
}
public string method1(Test enum)
{
return enum.ToString();
}
}
enum is a reserved keyword in C#. You can prefix it with @ if you want to use it as variable name:
public enum Test { A, B, C };
public interface IParent1
{
string method1(Test @enum);
}
public class Parent1 : IParent1
{
public string method1(Test @enum)
{
return @enum.ToString();
}
}
But I don't like using reserved words for variable names. A better approach would be:
public enum Test { A, B, C };
public interface IParent1
{
string method1(Test test);
}
public class Parent1 : IParent1
{
public string method1(Test test)
{
return test.ToString();
}
}
Don't see any problem with that. But why do you nest your enum declaration in the interface implementation? Your code will not compile, because:
1. You're using reserved word enum
2. value is not declared
Try use this:
public enum Test { A, B, C };
public interface IParent1 { string method1(Test @enum);}
public class Parent1 : IParent1
{
public string method1(Test @enum)
{
return @enum.ToString();
}
}
If you want your enum to be different in each implementing class you should use a generic interface like
public interface MyInterface<T>
{
string MyMethod(T myEnum)
}
If it should be the same for all implementing classes just don't put it outside any class:
public enum MyEnum { A, B, C }
public interface MyInterface
{
string MyMethod(MyEnum myEnum)
}
