multiple column GridViewComboBoxColumn

[Wellpartner]

Is it possible to have a multiple column GridViewComboBoxColumn where the dropdown shows multiple columns - almost like another grid?

I've got a dropdown that concatenates 3 data points and it would be cool if the dropdown rendered a mini-grid of values instead of a list of concatenated string values.  Even cooler would be sorting and filtering within the min-grid...

[Maya]

Hi Sam, - 

You may take a look at this article illustrating the implementation of GridViewComboBoxColumn - the last point describes how you may define its ItemTemplate. The other possible approach would be to set the EditorStyle of that particular column and define a RadGridView inside. Yet another possibility would be as the one described in this blog post.
However, please keep in mind that setting such heavy controls - like RadGridView for a editor/CellEditTemplate might lead to some degraded performance in case you handle a lot of data.
 

Kind regards,
Maya
the Telerik team