省份城市二级连动

来源：互联网发布：什么软件剪辑视频编辑：程序博客网时间：2024/05/09 19:21

<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional">
                                                                                        <ContentTemplate>
                                                                                            <asp:DropDownList ID="provinceddl" runat="server" AutoPostBack="True" DataSourceID="ObjectDataSource1"
                                                                                                DataTextField="ProvinceName" DataValueField="id">
                                                                                            </asp:DropDownList><asp:ObjectDataSource ID="ObjectDataSource1" runat="server" SelectMethod="GetloadByProvince"
                                                                                                TypeName="UserClass.other"></asp:ObjectDataSource>
                                                                                            <asp:DropDownList ID="cityddl" runat="server" DataSourceID="ObjectDataSource2" DataTextField="CityName"
                                                                                                DataValueField="id">
                                                                                            </asp:DropDownList><asp:ObjectDataSource ID="ObjectDataSource2" runat="server" SelectMethod="GetloadByCity"
                                                                                                TypeName="UserClass.other">
                                                                                                <SelectParameters>
                                                                                                    <asp:ControlParameter ControlID="provinceddl" Name="FaterID" PropertyName="SelectedValue"
                                                                                                        Type="Int32" />
                                                                                                </SelectParameters>
                                                                                            </asp:ObjectDataSource>
                                                                                        </ContentTemplate>
                                                                                    </asp:UpdatePanel>

备注：

通过第一个列表框，向第二个列表框传递参数！