依赖下拉列表 [英] Dependent Drop Downlist

问题描述

我在视图中有两个下拉列表如下

I have two drop downlist in View As follows

@Html.LabelFor(model => model.CgTnCode , "District")
             @Html.DropDownList("TnDscode",null,new{@id="cmbTnDscode" ,@size="1.2"})
             @Html.LabelFor(model => model.CgTnCode , "Towns")
             @Html.DropDownList("Tncode",null,new{@id="cmbTncode" ,@size="1.2"})

控制器中的
我有以下列表：

in Controller I have Following list:

ViewBag.TnDscode = new SelectList(db.Districts, "DsCode", "DsName");
           ViewBag.Tncode = new SelectList(db.Towns,"TnCode","TnName");

表格结构：

Table Structure:

District: DsCode,DsName
Town: TnCode ,TnName, TnDsCode 
where DsCode=TnDsCode

当我选择与该区相关的区时，城镇应填入城镇下拉列表：

任何人都可以帮忙吗？

when I will select District related to that district Town should be populated in Town drop downlist:
can anyone help??

推荐答案

嗨Priyankavm，



你可以参考这个 link [ ^ ]供参考，这对你有所帮助



谢谢，

RK

Hi Priyankavm,

You can refer this link[^] for reference which would help you a bit

Thanks,
R.K.

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