CODEWITHSUNDEEP
c#.net
panjo
panjo

Reputation: 3515

Copying enum property from one class to another

I have two classes with exact type properties but with different property names. So I want to copy every property to corresponding property which resides in different class.

For example 

public class ClassOne
{
   public string Name {get; set;}
   public string Code {get; set;}
   public UserMode Mode {get; set;}
   public enum UserMode {A=1, B=2, C=3};
}

public class ClassTwo
{
   public string MyName {get; set;}
   public string MyCode {get; set;}
   public MyUserMode Mode {get; set;}
   public enum MyUserMode MyMode {AA=1, BB=2, CC=3};
}

Since this only cross on my mind I created Helper method which converts ClassOne To ClassTwo taking every member and copy it's values like

public static ClassTwo(ClassOne one)
{
  var two = new ClassTwo()
  {
    MyName = one.Name,
    MyCode = one.Code,
    // how to copy enum value ??
  };
}

Question is: How can I copy enums like I did above with Name and Code?

Thanks

Upvotes: 2

Views: 8165

Answers (2)

Vasiliy
Vasiliy

Reputation: 492

You can cast value to int

MyMode = (MyUserMode)((int)one.UserMode)

Upvotes: 2

It'sNotALie.
It'sNotALie.

Reputation: 22794

Just cast it to an int and then to the new enum:

public static ClassTwo(ClassOne one)
{
  var two = new ClassTwo()
  {
    Name = one.Name,
    Code = one.Code,
    Mode = (ClassTwo.MyUserMode)((int)one.Mode);
  };
}

This is assuming that both enums have the exact same int values.

A safer way to do this would be using Enum.IsDefined:

public static ClassTwo(ClassOne one)
{
  var mode = (ClassTwo.MyUserMode)((int)one.Mode);
  if (!Enum.IsDefined(typeof(ClassTwo.MyUserMode), mode)
    throw new InvalidOperationException("Cannot map enums.");
  var two = new ClassTwo()
  {
    Name = one.Name,
    Code = one.Code,
    Mode = mode
  };
}

Upvotes: 9

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