Exception raised by binding to grid.

[Itay Sofer]

I have a parent observable collection having a SelectedItem property.
This item owns a child observable collection.
Both collection are the items source of two GridDataControls, one lays on master window and the other on details.
Change of the SelelectedItem property invalidates the binding expression, accessing the TableModel.RowCount property. When Child table is empty, a NullReference execption is raised by the get_RowCount() method (the top of the exception stack trace).
I use Syncfusion 9.2.

[Rajasekar]

Hi Itay,

Sorry for the inconvenience, We have tested the reported issue in different scenario but we are unable to reproduce the issue. Could you please check the below sample?

Sample: http://www.syncfusion.com/downloads/Support/DirectTrac/92094/WpfSFGDCParentChild-473532680.zip

We suspect you are using our grid in some other scenario, So If possible could you please modify our sample and revert us with replication procedure, that would be very helpful to resolve your problem earlier.

Please let know if you have any queries.

Thanks,
Rajasekar