Tips for invoking an external JavaScript function using AJAX

I find myself a bit confused. In my project, there is an external javascript file called Hierarchy.js located in the Scripts folder. This file contains several functions, one of which is KeySelected. I need to call this function in the OnClientItemSelected property of an AJAX autocomplete extender within a user control found in the User Controls folder.

My question is, can I simply use: 

OnClientItemSelected="KeySelected"

Or do I need to specify the full path? It's worth mentioning that both the Scripts and User Controls folders are part of the same project.

Any suggestions or assistance would be greatly appreciated.

-Anurag

c#javascriptasp.netajax

Answer №1

Ensure that the Hierarchy.js file is properly linked to your document:

<script type="text/javascript" src="yourPath/Hierarchy.js"></script>

You do not have to specify a specific "path" for the KeySelected function. All functions (unless part of another object) are loaded into the global namespace, so using 

OnClientItemSelected="KeySelected"
should suffice.

Check out this informative article on utilizing the AutoComplete Extender: Using the AutoComplete Extender

Answer №2

, it is important to note that calling functions from an external JavaScript file can be done once you are certain that the file has been loaded successfully. If there is any uncertainty about whether a function exists at the time of evaluation, but will exist once an AJAX-call is complete, it is advisable to wrap the code inside a function. 
OnClientItemSelected = function() {KeySelected();}

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