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我很新MVC。MVC - @ Html.Dropdown不从ViewBag填充值
我想开发一个MVC网页。我试图使用@HtmlDropDownList(),它必须使用ViewBag从我的web.config填充值。页面以正确的值呈现,但是在输出屏幕上,没有输出。下拉菜单仅显示屏幕上的空白值。有人可以帮助!
Webconfig代码:
<add key="ddlStreams" value="Las Vegas|India|Australia"/>
控制器代码:
public ActionResult Index()
{
string reportTypes = ConfigurationManager.AppSettings["ddlStreams"].ToString();
ViewBag.ddlStreamsVB = reportTypes.Split('|')
.Select((value) => new SelectListItem { Value = value.ToString() });
GetData getdata = new GetData();
return View(getdata.GetDataFromTable());
}
这是我的看法:
<div >
<div class="form-control">
<div class="row">
<div class="col-sm-4">
@Html.Label("Stream name")
</div>
<div class="col-md-8">
@Html.DropDownList("ddlStreamsVB1", ViewBag.ddlStreamsVB as IEnumerable<SelectListItem>)
</div>
</div>
</div></div>
上点击查看源代码的渲染HTML:
<div >
<div class="form-control">
<div class="row">
<div class="col-sm-4">
<label for="Stream_name">Stream name</label>
</div>
<div class="col-md-8">
<select id="ddlStreamsVB1" name="ddlStreamsVB1"><option value="Las Vegas"></option>
<option value="India"></option>
<option value="Australia"></option>
</select>
</div>
</div>
</div>
</div>
最终输出:( Final output here!!