GridView not Rebinding Properly After Postback

[Almohooob]

I have a GridView that has a DataSourceID pointing to an ObjectDataSource. The ObjectDataSource points to a method that returns a LINQ IQueryable by using the TypeName, SelectMethod, and SelectCountMethod properties of the ObjectDataSource control. What happens is that the data loads properly upfront. However, on postback, if I remove the rows from the GridView and try to rebind using the explicit GridView.DataBind(), it doesn't work. I know LINQ is returning the proper rowcount and such because I've called the countmethod and it returns the proper rowcount. Here's a quick example:\[code\]<asp:GridView ID="TestGridView" runat="server" PageSize="20" AutoGenerateColumns="false" AllowPaging="true" AllowSorting="false" DataSourceID="TestDataSource"> <Columns> ... </Columns></asp:GridView><asp:ObjectDataSource ID="TestDataSource" runat="server" EnablePaging="true" SelectCountMethod="GetDetailCount" SelectMethod="GetDetails" TypeName="MyApp.PageClass" />\[/code\]I've tried adding a button and adding the TestGridView.DataBind(); method to that. I've tried adding it to the Page_PreRender event. No matter what I try, it's not working.As someone suggested below, I've tried moving it to Page_Load as well, and no go. Here's a rough example of my code:\[code\]protected void Page_Load(object sender, EventArgs e){ if (!Page.IsPostBack) { // Set "initial" query parameters, then ... BindData(); }}private void BindData(){ // EDITED: Removed the code below since I'm not looking to delete the // rows from the database, but rather get the GridView to rebind // which its not. ////Remove all current rows from the GridView //int colCount = TestGridView.Rows.Count; //for (int x = 1; x <= colCount; x++) //{ // TestGridView.DeleteRow(x); //} // Bind GridView to the ObjectDataSource TestGridView.DataBind();}protected void RegenerateImageButton_Click(object sender, ImageClickEventArgs e){ // Set "updated" query parameters, then ... BindData();}\[/code\]