Syntax errors with Ajax.Utility.RegisterTypeForAjax

[mike55]

Hi all

 

I have two drop down lists on my page, when the user selects an item in the first list the second list should load related data from a database table.

 

I am trying to use AJAX to prevent post-backs, but I am running into a number of problems:

1. Syntax error - it seems that this error is related to the command:

Ajax.Utility.RegisterTypeForAjax(GetType(AjaxData))

When I remove this line I get no errors.

 

2. Microsoft JScript runtime error: 'AjaxData' is undefined occurs in the javascript file

function LoadType(identifier)
{
 var type = identifier.options  [identifier.selectedIndex].value;
 AjaxData.GetSubType(type, LoadType_CallBack);
}

I cannot under stand why the code will not work as I have the exact same code in a sample project and it works perfectly.

 

I have the Ajax.dll in the bin folder and I haved added the line:

<httpHandlers>
     <!-- Register the ajax handler -->
     <add verb="POST,GET" path="ajaxwrapper/*.ashx" type="Ajax.PageHandlerFactory, Ajax" />
   </httpHandlers>

to the web.config file

 

Mike55.