Javascript and User Controls in C#

Question

I have some JS functions within the ASCX of a user control. This UC is loaded multiple times in the host page. When I do a view source, I see the JS repeated for every instance of the UC.

Is there a way I can have it load the functions only once? I would like to reduce the size of the page for better performance

Brian Dukes · Accepted Answer · 2009-01-28 22:56:33Z

2

Put the functions in a separate .js file, then add it by calling Page.ClientScript.RegisterClientScriptInclude().

You can also mark the file as an Embedded Resource, and then include it using Page.ClientScript.RegisterClientScriptResource().

Note that if you're using a ScriptManager/UpdatePanels, use ScriptManager.RegisterClientScriptInclude or .RegisterClientScriptResource so that it'll know how to add the reference correctly on a partial postback.

edited Jan 28, 2009 at 22:56

answered Jan 28, 2009 at 22:41

Brian Dukes

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1 Comment

Seibar Over a year ago

+1 because it was better than my answer - prevents multiple loads of js

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