我已经通读了这个问题ASP.NET MVC DropDownListFor not selecting value from model并回答,但我不知道我的问题的解决方案。
这是我的观点:
@foreach (var adjusterLanguages in Model.adjusterLanguages)
{
<div class="editor-field row">
@Html.DropDownListFor(model => Model.adjusterLanguages[i].languageID,
(SelectList)ViewBag.ForeignLanguages)
@Html.ValidationMessageFor(model =>Model.adjusterLanguages[i].languageID)
</div>
<div style="clear: left;"></div>
i++;
}
我可以确认正在填充模型数据(从我的 Controller ):
model.adjusterLanguages = adjLangs;
那么,如何让它在模型发送到 View 时选择项目?
生成的html如下:
<div class="editor-field row">
<select id="adjusterLanguages_0__languageID" name="adjusterLanguages[0].languageID"><option value="">--Select--
</option>
<option value="94c5be88-814e-4719-9784-587eb88aa975">Afrikanns</option>
<option value="37b7bf71-7f4e-47c2-8b81-652b0d63dbcb">Albanian</option>
<option value="c94d6d85-0ba2-47d7-932e-2a61feba37b3">Arabic</option>
<!-- ... truncated for brevity ... -->
</select>
<span class="field-validation-valid" data-valmsg-for="adjusterLanguages[0].languageID" data-valmsg-replace="true"></span>
</div>
<div style="clear: left;"></div>
<div class="editor-field row">
<select id="adjusterLanguages_1__languageID" name="adjusterLanguages[1].languageID">
<option value="">--Select--</option>
<option value="94c5be88-814e-4719-9784-587eb88aa975">Afrikanns</option>
<option value="37b7bf71-7f4e-47c2-8b81-652b0d63dbcb">Albanian</option>
<option value="c94d6d85-0ba2-47d7-932e-2a61feba37b3">Arabic</option>
<!-- ... truncated for brevity ... -->
</select>
<span class="field-validation-valid" data-valmsg-for="adjusterLanguages[1].languageID" data-valmsg-replace="true"></span>
</div>
最佳答案
我找到答案了!感谢大家的帮助。当我将我的代码更改为以下内容时,它起作用了。该代码仅指定所选值:
@Html.DropDownListFor(
model => Model.adjusterLanguages[i].languageID,
new SelectList(
ViewBag.ForeignLanguages, "Value", "Text",
@Model.adjusterLanguages[i].languageID))
关于c# - MVC DropDownListFor 不从模型中选择值,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/16799476/