<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AutoGenerateColumns="False"
            DataKeyNames="ContactID" DataSourceID="SqlDataSource1" OnRowCommand="GridView1_RowCommand">
            <Columns>
                <asp:TemplateField>
                    <ItemTemplate>
                        <asp:LinkButton ID="LinkButton1" runat="server" CommandArgument="1" CommandName="Select">Sel1</asp:LinkButton>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField>
                    <ItemTemplate>
                        <asp:LinkButton ID="LinkButton2" runat="server" CommandArgument="2" CommandName="Select">Sel2</asp:LinkButton>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField>
                    <ItemTemplate>
                        <asp:LinkButton ID="LinkButton3" runat="server" CommandArgument="3" CommandName="Select">Sel3</asp:LinkButton>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:BoundField DataField="ContactID" HeaderText="ContactID" InsertVisible="False"
                    ReadOnly="True" SortExpression="ContactID" />
                <asp:BoundField DataField="Title" HeaderText="Title" SortExpression="Title" />
                <asp:BoundField DataField="FirstName" HeaderText="FirstName" SortExpression="FirstName" />
                <asp:BoundField DataField="MiddleName" HeaderText="MiddleName" SortExpression="MiddleName" />
                <asp:BoundField DataField="LastName" HeaderText="LastName" SortExpression="LastName" />
                <asp:BoundField DataField="EmailAddress" HeaderText="EmailAddress" SortExpression="EmailAddress" />
                <asp:BoundField DataField="Phone" HeaderText="Phone" SortExpression="Phone" />
            </Columns>
        </asp:GridView>
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\AdventureWorks_Data.mdf;Integrated Security=True;User Instance=True"
            ProviderName="System.Data.SqlClient" SelectCommand="SELECT ContactID, Title, FirstName, MiddleName, LastName, EmailAddress, Phone FROM Person.Contact">
        </asp:SqlDataSource>