I am binding the WebHierarchicalDataGrid with a DataSet. I enabled the sorting for both parent and child band. when i click the sort in the child band the data in the child band disappeared. and if i click the same child band column header again, i got an exception: [NullReferenceException]: Object reference not set to an instance of an object. any idea why? and how can i fix that.
Hi,
Are you re-assigning the DataSet to the grid on every postback? If you are not, then please do so, and you should not see the issue anymore. If you re-assigning the DataSet, then please post a sample that reproduces the issue.
Thank You,
Olga