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User Controls and javascript

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User Controls and javascript

(http://benreichelt.net/blog/2004/12/21/User-Controls-and-javascript/)

Published Dec 21 2004, 11:32 AM by breichelt

Comments

Scott Galloway said:

Use the ClientId property of the control - this will give you the unique name you can use to refer to the control client-side. It is necessary to ensure unique names for the elements for Javascript. It's still there in ASP.NET 2.0

# December 21, 2004 7:03 AM

Paul Wilson said:

Why? Because you can use a user control multiple times in the same page -- but the ids and names have to be guaranteed unique on the page.

# December 21, 2004 7:26 AM

ben said:

I had thought about duplicate names and ids, but I didn't think that was a good enough reason, it should be up to the developer to make sure they name their elements distinctly.

However, I had not considered using a user control multiple times on a page, in that case the developer simply cannot make distinct names, so in this case the behavior is warranted, good answer, thanks

# December 21, 2004 7:57 AM

Zk said:

To agree what Scott and Paul said, I *never* assume the client ID, even if I'm pretty darn sure (99.9%)... I'll always use the ClientID property.

# December 21, 2004 6:45 PM

ben said:

One thing I have been doing lately is to use the DOM to traverse form elements, that way I only need a reference to the table or div that contains all of the input boxes, etc..

# December 22, 2004 2:24 AM