In my last post I provided a small tutorial on how to use the Client-Side Event API within the ASPxGridView component from DevExpress. In this post I would like to cover another snippet that I came up with that may complement my previous tutorial. This snippet assumes that you have multiple selection enabled in the GridView and wish to preserve the selection as the user pages through results.

If Session("pks") IsNot Nothing Then
   Dim selectedPKs As List(Of Object) = 
     CType(Session("pks"), List(Of Object))
   For i As Integer = 0 To selectedPKs.Count - 1
     Dim selectedIdx As Integer = ASPxGridView1.
       FindVisibleIndexByKeyValue(selectedPKs(i))

     If selectedIdx >= ASPxGridView1.VisibleStartIndex And 
       selectedIdx <=   ASPxGridView1.VisibleStartIndex + 
       ASPxGridView1.VisibleRowCount Then         

       ASPxGridView1.FocusedRowIndex = selectedIdx         
       Exit For       
     End If     
    Next i   
End If  

This snippet goes in the Data_Bound event so that it executes each time the user moves to a different page within the grid view.