我使用CascadingDropDown方式做了三个DropDownList, 如何回绑数据?
即: 如做做一个界面aspx, 要同时实现对数据的新增和编缉都共用这个界面, 那么当编辑时, 我如何能使该dropDownList控件显示数据库中的值?
像一般的DorpDownList可以用DDl.Items.FindByValue(需要选值项).Selected = true;的方法做到, 但是用CascadingDropDown方式做的话,好像不行的..
- HTML code
HTS Code:<asp:DropDownList ID="ddl_HTS_Code" runat="server" CssClass="verdana10pt"> <asp:ListItem Text="-Select-" Value="-1"></asp:ListItem> </asp:DropDownList> HTS SubCode:<asp:DropDownList ID="ddl_HTS_SubCode" runat="server" CssClass="verdana10pt"> <asp:ListItem Text="-Select-" Value="-1"></asp:ListItem> </asp:DropDownList> HTS Name:<asp:DropDownList ID="ddl_HTS_Name" runat="server" CssClass="verdana10pt"> <asp:ListItem Text="-Select-" Value="-1"></asp:ListItem> </asp:DropDownList> <ajaxToolKit:CascadingDropDown ID="cdd_HTS_Code" runat="server" TargetControlID="ddl_HTS_Code" Category="HTS_Code" PromptText="-Select-" LoadingText="[Loading data...]" ServicePath="HTS.asmx" ServiceMethod="Get_HTS_Code"> </ajaxToolKit:CascadingDropDown> <ajaxToolKit:CascadingDropDown ID="cdd_HTS_SubCode" runat="server" TargetControlID="ddl_HTS_SubCode" Category="HTS_SubCode" PromptText="-Select-" LoadingText="[Loading data...]" ServicePath="hTS.asmx" ServiceMethod="Get_HTS_SubCode" ParentControlID="ddl_HTS_Code"> </ajaxToolKit:CascadingDropDown> <ajaxToolKit:CascadingDropDown ID="cdd_HTS_Name" runat="server" TargetControlID="ddl_HTS_Name" Category="HTS_Name" PromptText="-Select-" LoadingText="[Loading data...]" ServicePath="HTS.asmx" ServiceMethod="Get_HTS_Name" ParentControlID="ddl_HTS_SubCode"> </ajaxToolKit:CascadingDropDown>
[解决办法]
我没这么做过 帮顶一下