I am working with ASP.NET, C# and SQL Server.

What I am trying to do seems simple enough, but is causing me alot of problems. I am trying to set up my DataGrid so that is updates only when i press the Update button. It is pulling information from 5 different locations right now. 4 Combo boxes that contain a Category, Family, Sub Family and a Specific ID. It is also getting information from a text box that simple uses the word(s) typed in to search for the matching content in the items description field. I have basically created a detailed item searcher. But the problem is each combo box has to contain auto post back, because of the relationships. (each Category has specific Families that can belong to it, each Family has specific Sub Families that can belong to it, etc, etc...) so each time i select a new category, family what have you, the datagrid refreshes and this takes alittle time because the database itself contain 1500+ items.

Right now i am using paging, but i want to find a way so that the DataGrid will only refresh when the user preses the Search button.
Any help would be greatly appreciated.