Check if a javascript file is already loaded on a page

Question

How to check in C# if a javascript file is already loaded on to the page? Let's say I have a user control in a different namespace that I load on to a page. I would like to see if a script file doesn't exist before I register it with the scriptmanager.

Answer 1

You're looking for ScriptManager.GetRegisteredClientScriptBlocks(). From that collection of RegisteredScript objects you can use the Type and Key properties to uniquely identify them.

Answer 2

check this http://stackoverflow.com/questions/424073/how-to-determine-if-a-javascript-was-already-loaded-by-other-html-file