【Asp.Net从零开始】：创建主表格以及单击获取详细信息的数据显示图

主要使用确定了DataKeyNames属性，即可在第二个数据源控件上设置where操作
  <form id="form1" runat="server">
    <div>
    
    </div>
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
        ConnectionString="<%$ ConnectionStrings:AutoLotConnectionString %>" 
        SelectCommand="SELECT [CustID], [FirstName] FROM [Customers]">
    </asp:SqlDataSource>
    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" 
        DataKeyNames="CustID" DataSourceID="SqlDataSource1">
        <Columns>
            <asp:CommandField SelectText="详细信息" ShowSelectButton="True" />
            <asp:BoundField DataField="CustID" HeaderText="CustID" ReadOnly="True" 
                SortExpression="CustID" />
            <asp:BoundField DataField="FirstName" HeaderText="FirstName" 
                SortExpression="FirstName" />
        </Columns>
    </asp:GridView>
    <asp:SqlDataSource ID="SqlDataSource2" runat="server" 
        ConnectionString="<%$ ConnectionStrings:AutoLotConnectionString %>" 
        SelectCommand="SELECT * FROM [Customers] WHERE ([CustID] = @CustID)">
        <SelectParameters>
            <asp:ControlParameter ControlID="GridView1" Name="CustID" 
                PropertyName="SelectedValue" Type="Int32" />
        </SelectParameters>
    </asp:SqlDataSource>
    <asp:DetailsView ID="DetailsView1" runat="server" AutoGenerateRows="False" 
        DataKeyNames="CustID" DataSourceID="SqlDataSource2" Height="50px" Width="125px">
        <Fields>
            <asp:BoundField DataField="CustID" HeaderText="CustID" ReadOnly="True" 
                SortExpression="CustID" />
            <asp:BoundField DataField="FirstName" HeaderText="FirstName" 
                SortExpression="FirstName" />
            <asp:BoundField DataField="LastName" HeaderText="LastName" 
                SortExpression="LastName" />
        </Fields>
    </asp:DetailsView>
    </form>

　　2个SqlDataSource，1个GridView，1个DetailsView