在数据检索时不加载级联下拉列表 [英] Does not load cascading dropdown at the time of data retrieval

问题描述

我有一个用户控件，我正在使用状态和城市的级联下拉菜单。

在数据插入时它完全正常工作但在数据检索时状态不是加载......

cascadingdropdown代码是

i have an user control in that i am using cascading dropdown for states and citys..
At the time of data inserting it is perfectly working but at the time of data retrieval the states does not load......
cascadingdropdown code is

State:
                       <asp:DropDownList ID="ddlCState" runat="server" CssClass="userentry">
                       </asp:DropDownList>
                       <cc1:CascadingDropDown ID="cdlCStates" TargetControlID="ddlCState" PromptText="Select State"

                           ServicePath="~/CasCadingDropDown.asmx" ServiceMethod="GetStates" runat="server"

                           Category="StateId" LoadingText="Loading..." /

>

>

推荐答案

check < a href =http://www.aspsnippets.com/Articles/Creating-Cascading-DropDownLists-in-ASP.Net.aspx>在ASP.Net中创建级联DropDownLists [ ^ ]

如果您仍未能实现，请使用相关代码示例更新问题。

如果您在AJAX Control Toolkit中使用CascadingDropDown控件。关注

将CascadingDropDown与数据库（C＃）一起使用 [ ^ ]

check Creating Cascading DropDownLists in ASP.Net[^]
Update the question with relevant code samples if you still failed to implement it.
if you using CascadingDropDown control in the AJAX Control Toolkit. follow
Using CascadingDropDown with a Database (C#)[^]

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