I have apply grouping  in main radgrid that also contained nested grid .when i drag a column its successfully group  and sort but i drag another column its getting error.

i am working in DNN.

A critical error has occurred.
Specified argument was out of the range of valid values. Parameter name: index

so please help me.

thanks

Mukul

Hi,

The provided information is not enough to determine what is causing this error. Therefore I would ask you clarify how the grid is populated (are you using datasource control or you are calling DataBind()). Did you make any customizations in column headers?

Additionally, make sure that the error also exists when you test your project outside DNN. In case the issue persists only in DNN, I suggest you to post your question in the DotNetNuke forums or contact the support of DNN for technical help with our products.

Regards,
Pavlina
Telerik