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copied!<p>I had the same problem as you. Most examples of linqdatasource, ilustare the WhereParameters > controlparameter functionality which is cool but not that powerful. </p> <p>The answer is simple: Use a LinqDataSource and just implement the "onselecting" event pass whatever kind of data you wish. </p> <p>Here is a short example with full filtering-paging-ordering capabilities (also note that the populated sql is optimal and only requests top 10 records every time) </p> <p><strong>ASPX:</strong> </p> <pre><code><asp:TextBox ID="txtLastName" runat="server"></asp:TextBox> <asp:Button ID="btnFilter" runat="server" Text="Filter" onclick="btnFilter_Click"/> <asp:LinqDataSource ID="LinqDataSource1" runat="server" onselecting="LinqDataSource1_Selecting"> </asp:LinqDataSource> <asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True" AutoGenerateColumns="False" DataSourceID="LinqDataSource1"> <Columns> <asp:BoundField DataField="FirstName" HeaderText="FirstName" ReadOnly="True" SortExpression="FirstName" /> <asp:BoundField DataField="MiddleName" HeaderText="MiddleName" ReadOnly="True" SortExpression="MiddleName" /> <asp:BoundField DataField="LastName" HeaderText="LastName" ReadOnly="True" SortExpression="LastName" /> </Columns> </asp:GridView> </code></pre> <p><strong>CODEBEHIND:</strong></p> <pre><code> protected void LinqDataSource1_Selecting(object sender, LinqDataSourceSelectEventArgs e) { var ctx = new LinqDataSource.DBDataContext(); IQueryable<Customer> customers = ctx.Customers; if (!String.IsNullOrEmpty(txtLastName.Text)) customers = customers.Where ( c => c.LastName.Contains(txtLastName.Text)); e.Result = customers; } protected void btnFilter_Click(object sender, EventArgs e) { GridView1.DataBind(); } </code></pre>

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