Thanks for your reply. Let me explain more on issue we are facing.
We are using Reverse Mapping, with Master / Detail Table.
Now when we add Records in Detail thru Master.Details.Add... after save in Database we get records in different sequence from what we added to the collection.
example: records added in OrderLines collection in following sequence.
Now after save the resultant records added in Database as following (we have an Identify field in OrderLines Table, which shows the sequence how Telerik added records to database.
Id Sno. Product
25 3 Product3
26 1 Product1
27 2 Product2
We assume that addition of records to Database should be in the same sequence as added in Collection...
Hope above details would better explain the problem.