Grouping Grid and refresh DataSource -> Specified argument was out of the range of valid values.

[Andreas]

Hi Telerik Team,

I am getting a strange exception, when have a grouped gridview and refresh the datasource. 
I delete in a background operation some rows and go to the database to refresh the datasource, which is binded to the grid. I get a "Specified argument was out of the range of valid values. Parameter name: index" - Exception on the setter of the datasource. 

I similar problem was discriped in this thread, but I couldn't solve it for WPF.
http://www.telerik.com/community/forums/aspnet-ajax/grid/expanded-hierarchical-grid-hit-error-specified-argument-was-out-of-the-range-of-valid-values-parameter-name-itemhierarchicalindex.aspx 

Best,
Thomas

[Dimitrina]

Hi,

 I have tested refreshing the ItemsSource of a grouped GridView with some groups expanded but so far I did not observed any errors.  I have tested with the latest binaries.

May I ask you if you have the problem with our most recent version - Q2 2012 Service Pack? 

All the best,
Didie
the Telerik team

[Andreas]

Hello Didie,

I am currently using 2012.1.215.40 (Q1 2012) controlls.

Thanks for your reply

[Dimitrina]

Hello,

According to the Q2 2012 Release Notes : "Expand group row with no columns throws exception is now fixed."  May I ask you to download the latest assemblies and test with them?
Please let me know about the result.

All the best,
Didie
the Telerik team