А new virtualization mechanism for ColumnGroups will be introduced with Q2 2015. A property EnableColumnGroupsVirtualization is exposed with default value True for enabled virtualization. Setting it to False will enable the old logic.
Posted on:25 Feb 2015 17:26
We have significant issue with our client because of this. we have a RadGridView with 500+ visible columns. switching the visibility of the columns would take more than a minute to render.
Posted on:26 Feb 2015 07:40
This feature request is in our TODO list for the next Q2 release.