RadGrid with EnableHeaderContextMenu not working

[Kuya]

This is just an observation.

When using RadGrid, together with EnableHeaderContextMenu = true, and by some reason its not working, check make sure that ClientIDMode="Static" is not set. When removed, it works. 

I understand this might be because of the pointers to the grid id, but just throwing this out to anyone having the same troubles we had. 

[Vessy]

Hi Kuya,

Thank you for sharing your observation. It is recommended by Microsoft to use ClientIDMode set to Static only for static controls.The controls from the UI for ASP.NET AJAX suite on the other hand are controls with complex hierarchies of child controls and templates so setting their ClientIDMode property to Static  breaks their functionality. This is why RadGrid and all RadControls support only ClientIDMode="AutoID".

You can read more details on this matter here:
https://docs.telerik.com/devtools/aspnet-ajax/general-information/troubleshooting/general-troubleshooting#setting-clientidmode-property-to-static-breaks-the-telerik-controls-functionality

Regards,
Vessy
Progress Telerik