How to get client-side SortExpressions and FilterExpression on post-back?

[Mike Chabot]

I have a RadGrid that uses client-side data binding, sorting, and filtering. Exporting to Excel requires a postback because it does not work with client-side data binding. When a postback does occur any SortExpressions and FilterExpression on the MasterTableView are lost. The client-side get_sortExpressions() and get_filterExpressions() have values, but on the server-side RadGrid1.MasterTableView.FilterExpression is an empty string, and RadGrid1.MasterTableView.SortExpressions is an empty collection.

 

Should these expressions be available on the server-side after a postback, or is there some trick to getting these expressions to be sent back to the server? Thank you.