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Adding custom ToString method to Enum

Hi,
I need to add a custom ToString method on an Enum
Property. The default ToString method expands the whole
name. But, I want only an short associated code with the
long name of the enum type.

For example,
public enum Color { Red = 0, Blue, Green }

The statement

Color cr = Color.Red;
Console.WriteLi ne(cr.ToString( ));

prints, "Red". But, I want to override ToString of Color
to yeild a result "RD" for red. "BL" for Blue and "GR" for
green.

Can anyone help me out?

Thanks and Best Regards
Suresh.
Nov 15 '05 #1
2 7350
Suresh,

You are not going to be able to do this. The reason for this is that
you can not extend structures so you can not override the ToString method.

What I would do is create a class that derives from TypeConverter, and
then override the ConvertFrom and ConvertTo methods. You can then transform
your color to your code based the color passed in. You would then
instantiate an instance of this class and then call the appropriate methods
(ConvertFromStr ing and ConvertToString , these methods will end up calling
the ConvertFrom and the ConvertTo methods).

Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard. caspershouse.co m

"Suresh" <an*******@disc ussions.microso ft.com> wrote in message
news:07******** *************** *****@phx.gbl.. .
Hi,
I need to add a custom ToString method on an Enum
Property. The default ToString method expands the whole
name. But, I want only an short associated code with the
long name of the enum type.

For example,
public enum Color { Red = 0, Blue, Green }

The statement

Color cr = Color.Red;
Console.WriteLi ne(cr.ToString( ));

prints, "Red". But, I want to override ToString of Color
to yeild a result "RD" for red. "BL" for Blue and "GR" for
green.

Can anyone help me out?

Thanks and Best Regards
Suresh.

Nov 15 '05 #2
Thanx Nich.

That exactly solved my problem.

Instead I used EnumCoverter class.

Best Regards
Suresh.
-----Original Message-----
Suresh,

You are not going to be able to do this. The reason for this is thatyou can not extend structures so you can not override the ToString method.
What I would do is create a class that derives from TypeConverter, andthen override the ConvertFrom and ConvertTo methods. You can then transformyour color to your code based the color passed in. You would theninstantiate an instance of this class and then call the appropriate methods(ConvertFromSt ring and ConvertToString , these methods will end up callingthe ConvertFrom and the ConvertTo methods).

Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard. caspershouse.co m

"Suresh" <an*******@disc ussions.microso ft.com> wrote in messagenews:07******* *************** ******@phx.gbl. ..
Hi,
I need to add a custom ToString method on an Enum
Property. The default ToString method expands the whole
name. But, I want only an short associated code with the
long name of the enum type.

For example,
public enum Color { Red = 0, Blue, Green }

The statement

Color cr = Color.Red;
Console.WriteLi ne(cr.ToString( ));

prints, "Red". But, I want to override ToString of Color
to yeild a result "RD" for red. "BL" for Blue and "GR" for green.

Can anyone help me out?

Thanks and Best Regards
Suresh.

.

Nov 15 '05 #3

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