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<asp:TemplateField HeaderText="绑定">
<EditItemTemplate>
<asp:DropDownList ID="DropDownList1" runat="server"
DataSourceID="SqlDataSource1" DataTextField="thetext" DataValueField="thevalue"
SelectedItem='<%# Bind("c") %>' SelectedValue='<%# Bind("b") %>' >
</asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:zhangsongConnectionString %>"
SelectCommand="SELECT [thevalue], [thetext] FROM [dropdownlist]">
</asp:SqlDataSource>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("c") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:GridView ID="GridView1" runat="server" DataSourceID="SqlDataSource2">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<div>
<asp:SqlDataSource ID="SqlDataSource1" runat="server"
ConnectionString="<%$ ConnectionStrings:StudentInformationSystemConnectionString %>"
SelectCommand="SELECT [id], [Sex] FROM [MyStudentInfo]"></asp:SqlDataSource>
</div>
<asp:DropDownList ID="DropDownList1" runat="server"
DataSourceID="SqlDataSource1" DataTextField="id" DataValueField="Sex">
</asp:DropDownList>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>