BusyIndicator on GridView after expand group

[Paweł]

Hello!

I've got issue with performance of RadGridView. After click on group user have to wait to expand 2-5 seconds.



Sometimes users click severali times and after group loaded we've got expand-collapse-expand-collapse.... effect.

How can I display BusyIndicator after click on groups expander and hide it after expand (is there something like Expanding and Expanded events)?

Kind regards!

[Nick]

Hi Paweł,

You can use the GroupIsExpandedChanged/Changing events. 

Hope this helps! 

Greetings,
Nik
the Telerik team

[Paweł]

Ok. I found it. It was literally

GroupRowIsExpandedChanging 

and

GroupRowIsExpandedChanged 

but it is still not working!

I took it on debugger and Changing event is firing after click, but Changed event is firing long time before render rows in group. How can I detect if items in group have rendered?