Implement Thumb and Resizing for GridViewColumnGroup

[Alexander]

Hello,

I am working with GridViewColumnGroups in RadTreeListView. The first steps and styling worked pretty well. 

This morning, I stumbled upon an issue which I am trying to fix now - so far, without success:

I need to implement the "Thumb" and resizing for a GridViewColumnGroup by dragging it with the mouse (the same behavior as it already exists for plain columns). The reason I want to implement this is that I want to "fake" a certain behavior: There are alternating GridViewColumnGroups which each contain only one column. But the user of the application should be under the illusion that the column header cell and the column group are one cell - as if the two "melted together".

By styling the column group, I can make it look like that (I changed the background colour and set the bottom border to thickness zero - that's it). But I also need to implement the Thumb that not only the appearance but also the behavior are the same.

This leads me to the issue that a two-way binding between the column width and the column group width has to be implemented.

 

Any help here or someone with experience / a solution to this issue?

Any help is appreciated! Thanks a lot in adavance!

Alex

[Stenly]

Hello Alex,

This behavior is currently not supported by the RadGridView/RadTreeListView controls.

We have an open feature request in our feedback portal, which is to add support for allowing the resize of the column groups directly. It can be found at the following link where it can be voted for, as well as followed, in order to get notified via e-mail when its status gets changed:

GridView: Implement column groups resizing mechanism

With this being said, I hope the provided information will be of help to you.

Regards,
Stenly
Progress Telerik