How to collapse/expand a group of sub-columns?

[Ron]

Hi

I am working on a new project using Telerik ASP.NET AJAX controls and one of the requirements is to be able to dispaly columns in a group and be able to collapse/expand the group using a +/- button for example. I already created a group inside a table using GridTemplateColumn type but was wondering if there is a better way to acheave this with collapse/expand ability while not losing the sort and resize ability.

I apprecaite your help in advance
Ron Farko

[Tsvetoslav]

Hello Ron,

Could you give more details on the grouping functionality that you have in mind as I was not able to grasp what exactly your requirement is. As far as I understand it is different than the out-of-the-box grouping feature of RadGrid. 

Regards,
Tsvetoslav
the Telerik team

[Ron]

hi Tsvetoslav

Thanks for the reply. What I meant by grouping is column grouping not row grouping. Basically I need to build a grid which each column in the grid has few sub-columns for example:

column 1: Date (simple bound column)
column 2: Checking Account with sub-columns: Starting Balance, Ending Balance (could be a Template Column)
column 3: Saving Account with sub-columns: Starting Balance, Ending Balance (could be a Template Column)
...

I also need the following functionalities on this grid:

• ability to sort on each sub-column
• ability to move the entire column (column reorder)
• ability to resize at column level (not sub-columns)
• but most importantly I'd like to have a [+/-] button (expand/collapse) next to the top header of each column and when I click to collapse it only should show one value in the column (say Ending Balance) and when click again it expands it should show all the sub-columns.

Hope this explains what I am looking for.

Regards
Ron

[Tsvetoslav]

Hello Ron,

Such a scenario is not supported by RadGrid. The furthest you can go (as you have correctly guessed) is demonstrated in the following online example and the related help topic:
http://demos.telerik.com/aspnet-ajax/grid/examples/generalfeatures/columntypes/defaultcs.aspx
http://www.telerik.com/help/aspnet-ajax/grdcustomizewithgridtemplatecolumn.html 

All the best,
Tsvetoslav
the Telerik team