[Solved] Expand one row at a time

[Mydatafactory]

I have a question about a very simple issue. Despite searching the forum and the demo's I cannot find the solution...

I have a hierarchial grid. When the expand button of 1 row in level 1 is clicked, the next level appears. When another row in level 1 is clicked the next level also appears. So now 2 rows on level 1 are expanded

I would like to have the next behavior: When 1 row on level 1 is expanded and another expand button of a row on level 1 is clicked, the already expanded row collapses.

I hope I'm clear enough.

[Pavlina]

Hello A. Bennen,

If you want to allow single row expand at a time for each level in the grid hierarchy, you merely need to:
            - Hook the ItemCommand event and check whether e.CommandName is RadGrid.ExpandCollapseCommandName 
            - Traverse all items in the currently active GridTableView 
            - Set the Expanded property for all items which differ from the e.Item instance to false.

More information about Single expand in hierarchical grid is available in this help topic.

I hope this information helps.

Regards,
Pavlina
the Telerik team

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