Hello Mike,

Currently, we don't have an event to handle that. But you can customize Filter Context menu. Please open our WebGrid documentation and read about "How-to : Customize Filter Context Menu". 

This should guide you how to do it.

Regards,
HAndy

Thank you Handy.

I am already using that method to customize part of what I need, but it can't handle all of it.

In the row/column/export context menu events, I update the WebContextMenu.ClientSideEvents properties to attach to the ShowMenu, Select and Click events.   It works very well.  I just need the OnFilterContextMenu event so I can do the same for the filter menu too - without it, nothing lets me know the filter menu just opened.

Mike

Hello Mike,

Unfotunately, It cannot be done because we don't have client side event to handle it. I suggest you post this as feature request.

Regards,
Handy

Yup, that's what I figured.  I have submitted this in Developer Network, Product Feedback as a feature request (aka. the black hole :-)   Hopefully it will get reviewed and resolved along with the other requests I need from there.

Thanks,

Mike