Adding GridViewGroupRow by Code

[Modi]

Hi,

Can i add few GridViewGroupRow in RadGrid by code once user is grouping data.Once user is grouping data i want to add few groups.For those groups i don't have data in ItemSource of grid,But i want to add them based on the column based on which user has grouped .Can i do that?

Thanks,
Modi

[Maya]

Hello Modi,

Please share a bit more information about your scenario and exact requirements. What exactly is the idea behind creating groups when no source for them is available ? Do you expect to create "empty" groups?

Sincerely yours,
Maya
the Telerik team

[Chris Lynch]

I have a similar need to add group rows that are not in the itemsource of the grid
the scenario is I have a chart tied to a grid, when the user groups coulumn in grid the bar chart update from its groups and the associated aggregation of those groups
Currently when the user group on a  column  that  is month and year the chart reflects only shows Months  that have data in grid
I need to show empty months (zero counts)  this is why I looking to manually add GroupRows

[Nick]

Hi Modi,

Unfortunately, the GridView Data architecture does not allow the Empty groups to be shown in the ViewPort. 
You can add group descriptors on the fly which can determine groups  with no items, however the GridView will not display them. 
The approach you can take with this scenario is to create your own abstraction over the grouping functionality and, create your own custom "grouping" depending on either row hierarchies or row details.

Hope this makes sense! 

Kind regards,
Nik
the Telerik team