'Extender control 'Mpe' is not a registered extender control

jaya sai

3y1.1kASP.NET

when im trying to export into pdf from modal popup extender getting error like this

'Extender control 'Mpe' is not a registered extender control. Extender controls must be registered using RegisterExtenderControl() before calling RegisterScriptDescriptors().
Parameter name: extenderControl'

this is my source

i am unable to post code here always showing you dont have enough reputaion to post hyperlinks but i am not posting hyperlinks

i am posting code always getting problem like this

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Naimish Makwana3y ago
Accepted answer
The ModalPopupExtender control is an extender control that requires registration before it can be used. Make sure that you have included the necessary script references to the AJAX Toolkit in your code and that the control has been registered properly using the RegisterExtenderControl() method.

Here's an example of how to register the ModalPopupExtender control in your code:
```
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="ajaxToolkit" %>
```
Make sure that you have the correct ID values for the TargetControlID, PopupControlID, CancelControlID, and OkControlID properties. These should correspond to the IDs of the controls on your page.

I hope this helps you resolve your issue!

Thanks
+3