DelegateCommand or RelayCommand

Question

0.00/5 (No votes)

See more:

Hi,

I m implementing M-V-VM pattern in my WPF application. As far as designing ViewModel class is concerned I wanted to know when to use DelegateCommand and when to use RelayCommand to expose inline operations through Command.

or are they 100% interchangable? Is there any scenatrio where one is preferred over other?

Thanks

Posted 14-Jan-11 1:23am

Kamal Gurnani

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

E.F. Nijboer · Accepted Answer · 2011-01-14T01:51:00

You are not the first one wondering about this. There is some discussion going on about this with the basic conclusion that RelayCommand is more lightweight and based on your needs you choose the one that is best suited at a given point. Have a look at these links for more info.

http://compositewpf.codeplex.com/Thread/View.aspx?ThreadId=63174[^]

http://compositewpf.codeplex.com/Thread/View.aspx?ThreadId=63174[^]

http://marlongrech.wordpress.com/2008/12/13/attachedcommandbehavior-v2-aka-acb/[^]

Good luck!

Espen Harlinn · Accepted Answer · 2011-01-14T01:47:00

Solution 1

Here is a thorough article from MSDN
http://msdn.microsoft.com/en-us/magazine/dd419663.aspx[^]

This may also be of interest:
DelegateCommand vs RoutedCommand vs EventHandler
[^]

Regards
Espen Harlinn

Posted 14-Jan-11 1:47am

Espen Harlinn

Comments

Kamal Gurnani 14-Jan-11 7:57am

Thanks