C#：DataBinding:“System.Data.DataRowView”不包含名为“id”的属性。

在使用sqldatasource、GridView控件联用时，如果报上述错误，就说明，GridView中的数据源SqlDatasource主键字段属性没有规定，应在GridView属性设置中加入DataKeyNames=“id”。

Code
 <asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True"
                                            AutoGenerateColumns="False" BackColor="White" BorderColor="#999999" BorderStyle="Solid"
                                            BorderWidth="1px" CellPadding="3"  DataKeyNames="id"  DataSourceID="SqlDataSource1" EmptyDataText="没有可显示的数据记录。"
                                            ForeColor="Black" GridLines="Vertical" Width="100%" PageSize="5">
                                            <FooterStyle BackColor="#CCCCCC" />
                                            <Columns>
                                                <asp:CommandField ShowEditButton="True" />
                                                <asp:CommandField ShowDeleteButton="True" />
                                                <asp:BoundField DataField="zq" HeaderText="长贷期限" SortExpression="zq" />
                                                <asp:BoundField DataField="cdje" HeaderText="长贷金额" SortExpression="cdje" />
                                            </Columns>
                                            <PagerStyle BackColor="#999999" ForeColor="Black" HorizontalAlign="Center" />
                                            <SelectedRowStyle BackColor="#000099" Font-Bold="True" ForeColor="White" />
                                            <HeaderStyle BackColor="Black" Font-Bold="True" ForeColor="White" />
                                            <AlternatingRowStyle BackColor="#CCCCCC" />
                                        </asp:GridView>