RadAjaxManager AjaxRequest TypeError: Cannot read property 'id' of undefined

javascript telerik radajaxmanager
Airn5475 picture Airn5475 · Dec 6, 2012 · Viewed 8.5k times · Source

Here's the situation:
I have a host page that loads a custom web user control. In my web control I want use javascript and a RadAjaxManager to load up a second web user control. I used this example from Telerik as my guide:
http://demos.telerik.com/aspnet-ajax/ajax/examples/manager/clientsideapi/defaultvb.aspx

However, I kept getting the following error when I would call the client-side "ajaxRequest" method on the RadAjaxManager.

TypeError: Cannot read property 'id' of undefined

Answer

Brian Ogden picture Brian Ogden · Jul 18, 2013

Another reason this error can happen is not having clientIDMode="AutoID" attribute in the <pages> element of your web.config

Related questions

Uncaught TypeError : cannot read property 'replace' of undefined In Grid

I'm new in using Kendo Grid and Kendo UI . My question is how can i resolve this Error Uncaught TypeError: Cannot read property 'replace' of undefined This is my Code on my KendoGrid $("#Grid").kendoGrid({ scrollable: false, sortable: true, pageable: { …

Read More
Change selected value of kendo ui dropdownlist

I have a kendo ui dropdownlist in my view: $("#Instrument").kendoDropDownList({ dataTextField: "symbol", dataValueField: "symbol", dataSource: data, index: 0 }); How can I change the selected value of it using jQuery? I tried: $("#Instrument").val(symbol); But it doesn't work as expected.

Read More
How to move an entire div element up x pixels?

I want to reposition an entire div and its contents up about 10-15 pixels. How can I do this? Note: this is slider element, so when I click a button the slider slides down. Once it is finished I want …

Read More