Understanding and Using Partial Classes in C#: ASP Alliance

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Understanding and Using Partial Classes in C#

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Published: 28 Dec 2007

Abstract
In this introductory article, Brendan describes how partial classes work and how to create partial classes. He walks you through when to use partial classes as well as how to implement multiple interfaces with partial classes. The examples used will help beginners learn about this useful technology.

by Brendan Enrick
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Article Contents:

Introduction

One great addition to C#, (also added into VB, but I don't cover that much here) introduced with the .NET Framework 2.0, is support for partial classes. This is a very powerful tool made available to developers. It allows you to have multiple pieces of a class definition. Functionally, partial classes are not at all different from classes written as full classes. Which means you can have one single class definition or a class written as a few distinct parts, so you need not worry about partial classes breaking existing functionality.

If you've done any ASP.NET work since 2.0 you've probably already seen partial classes. Perhaps you did not know you were working with them, but with ASP.NET sites every page created is actually using partial classes. The other part of the partial class is created from the .aspx file.

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User Comments

Title: Excellant Artical
Name: Haribabu Nimmagadda
Date: 7/22/2010 7:58:00 AM
Comment:
It helps me alot.

Title: Good one!
Name: Lakshmi Sudheendra
Date: 5/26/2010 8:53:17 AM
Comment:
Very useful article. Described in simple words and optimally covered the essential topics.

Title: excellent
Name: vasudev
Date: 5/22/2010 6:10:46 AM
Comment:
excellent jestification

Title: I like the justification
Name: george
Date: 2/24/2010 10:20:43 AM
Comment:
I was aware of the autogenerated code case, but code merging is the real day to day convenience this feature provides.

Title: very good explanation
Name: krishna kishore
Date: 2/16/2010 9:29:59 AM
Comment:
your explanation is very clear. and simple

Title: Wonderfull
Name: s.arul
Date: 2/9/2010 8:17:46 AM
Comment:
Wonderful article for asp.net beginers

Title: Good
Name: Sanjeev
Date: 2/9/2010 5:29:54 AM
Comment:
Here in ur article u have described enough.. but plz try to add more examples so it will clear the doubts of readers.. all the best

Title: Good
Name: Laxmi
Date: 12/22/2009 8:04:24 AM
Comment:
Its good but I have a question.I have a class which is splitted into two partial classes.These two partial classes have same methods.what happens at compile time.Please help me.thanks in advance..

Title: Nice Article
Name: Senthil
Date: 11/2/2009 6:07:40 AM
Comment:
Very Nice Article!!

Title: Excellent !!
Name: Sai
Date: 10/30/2009 3:10:32 AM
Comment:
Nice article for beginners.

Title: partial class
Name: vikash kumar
Date: 10/15/2009 6:07:41 AM
Comment:
Article written by you is good but not enough.pls modify it.

Title: Great little read
Name: Piao!
Date: 9/18/2009 11:34:43 AM
Comment:
Good writing style, and nice real world examples - cheers man!

Title: Nice Article
Name: sam
Date: 9/9/2009 7:42:56 AM
Comment:
nice article Enrick. Can you suggest me some article on delegates & events?

Title: Good Article
Name: Rajender Kumar
Date: 8/28/2009 12:49:41 AM
Comment:
i am a web developer Asp.Net C#. i have read this article, that is well understandig for beginners.
Thanks for taking time for this post.

Title: Thank you
Name: phil
Date: 7/1/2009 8:01:46 PM
Comment:
Thanks for posting this. I despise .net but I have to do it at work so its nice to find articles that teach the concepts rather than syntax.

Title: confuseeeeeeeeee
Name: sagar
Date: 1/29/2009 1:48:30 AM
Comment:
Hi.. i am cleared abt partial class in c#.... but u r article mix with aspx... ca u clarify this

Title: partial classes
Name: shraddha
Date: 1/13/2009 4:12:44 AM
Comment:
very good article

Title: I am heap to get you
Name: zinabu Alemayehu
Date: 11/8/2008 10:00:40 AM
Comment:
I need some help from you based on the asp,c#,and vb.if you get full of code about some project please send to me via my email.

I always Thank u.........

Title: Thank you
Name: Shawn F.
Date: 9/23/2008 10:55:07 AM
Comment:
Thanks for taking the time to post this. It helps clear things up.

BTW...You're able to describe things well enough for me.

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