473,320 Members | 1,947 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,320 software developers and data experts.

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.WriteLine(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 7330
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
(ConvertFromString 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.com

"Suresh" <an*******@discussions.microsoft.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.WriteLine(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(ConvertFromString 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.com

"Suresh" <an*******@discussions.microsoft.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.WriteLine(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

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

3
by: Wiktor Zychla | last post by:
I would like to be able to convert enums to their string representation but I would like to be able to apply a custom formatting, so that I could write for example: enum E { a, b, c }; string...
5
by: John Smith | last post by:
I have a custom enum to list comparison operators: =, <, <=, >, >= . I have created it as follows: public enum Comparator {Equal, LessThan, LessThanOrEqual,GreaterThan,GreaterThanOrEqual} Now...
4
by: avivgur | last post by:
Hi, Suppose I have an enum declared as: enum Color {Red, DarkRed, Blue, DarkBlue} Color c = Color.DarkBlue; And I want the command "Console.WriteLine(c);" to print out "Dark Blue" instead of...
8
by: John Cobb | last post by:
Excuse me if I use some terminology incorrectly as I am not well versed in Object Orientation. In short I want to create an Enumerated type similar to the following Enum Monitor as Byte Small...
15
by: Jeff Mason | last post by:
Hi, I'm having a reflection brain fog here, perhaps someone can set me on the right track. I'd like to define a custom attribute to be used in a class hierarchy. What I want to do is to...
3
by: Kannan | last post by:
Hi, I am trying to created Outloook Add-in Com in outlook using C#. I have seen this URL for developing this sample http://support.microsoft.com/?kbid=302901 When I executed this program it...
11
by: Pete Kane | last post by:
Hi All, does anyone know how to add TabPages of ones own classes at design time ? ideally when adding a new TabControl it would contain tab pages of my own classes, I know you can achieve this with...
2
by: filipk69 | last post by:
Could someone point me in the right direction, please. I have an enum something like this: enum TextFieldType { FieldABC = 3000, FieldXYZ = 3001, ….. ….. }
6
by: Rick | last post by:
Hi group, I'm trying to inherit from the windows checkbox control. This is no problem. My goal is to add a property that is based on an enum. When I have an enum declared within the class, it...
0
by: DolphinDB | last post by:
The formulas of 101 quantitative trading alphas used by WorldQuant were presented in the paper 101 Formulaic Alphas. However, some formulas are complex, leading to challenges in calculation. Take...
0
by: ryjfgjl | last post by:
ExcelToDatabase: batch import excel into database automatically...
0
isladogs
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 6 Mar 2024 starting at 18:00 UK time (6PM UTC) and finishing at about 19:15 (7.15PM). In this month's session, we are pleased to welcome back...
0
by: jfyes | last post by:
As a hardware engineer, after seeing that CEIWEI recently released a new tool for Modbus RTU Over TCP/UDP filtering and monitoring, I actively went to its official website to take a look. It turned...
0
by: ArrayDB | last post by:
The error message I've encountered is; ERROR:root:Error generating model response: exception: access violation writing 0x0000000000005140, which seems to be indicative of an access violation...
1
by: PapaRatzi | last post by:
Hello, I am teaching myself MS Access forms design and Visual Basic. I've created a table to capture a list of Top 30 singles and forms to capture new entries. The final step is a form (unbound)...
0
by: Defcon1945 | last post by:
I'm trying to learn Python using Pycharm but import shutil doesn't work
0
by: af34tf | last post by:
Hi Guys, I have a domain whose name is BytesLimited.com, and I want to sell it. Does anyone know about platforms that allow me to list my domain in auction for free. Thank you
0
by: Faith0G | last post by:
I am starting a new it consulting business and it's been a while since I setup a new website. Is wordpress still the best web based software for hosting a 5 page website? The webpages will be...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.