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jquery - 从 Html.DropDownListFor 获取文本

转载 作者:行者123 更新时间:2023-12-01 06:48:40 25 4
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提交表单时,我需要下拉列表中所选项目的文本值。我的模型仅包含 StatusID 和 Description。

当我提交表单并获取 StatusID 属性的关联值时,下拉列表的文本显示正确,但 Description 属性为空。

提交表单时,我使用 jQuery 添加了一个 JS 函数,以检索模型的关联文本值:

var selTypeText = $("#StatusID option:selected").text();

但是,它永远不会进入 JS 函数内部以到达该断点。

我缺少什么来让它执行 JS 函数?

这是我的观点:

@model YeagerTechModel.Status
@using YeagerTechResources
@{
ViewBag.Title = "check for DDL";
}
<h2>
"Dropdownlistfor retrieval"</h2>
@using (Html.BeginForm("AddSingleStatus", "Status", new AjaxOptions { HttpMethod = "POST", }))
{
@Html.ValidationSummary(true)
<table>
<tr>
<td>
<div class="display-label">
@Html.LabelFor(model => Model.Description);
</div>
<div class="editor-field">
@Html.DropDownListFor(model => Model.StatusID, new SelectList((YeagerTechModel.Status[])ViewData["statuses"], "StatusID", "Description"));
@Html.ValidationMessageFor(model => Model.StatusID)
</div>
</td>
</tr>
<tr>
<td>
<input type="submit" value='@Resources.Add' />
</td>
</tr>
</table>
}

<script>
$(function () {
$("form").submit(function(){
var selTypeText= $("#StatusID option:selected").text();
$("#Description").val(selTypeText);
});
});
</script>

以下是提交页面之前的相关源代码:

<!DOCTYPE html>
<html>
<head>
<title>check for DDL</title>
<link href="/Content/Site.css" rel="stylesheet" type="text/css" />

<link href="/Content/kendo/2013.1.703/kendo.common.min.css" rel="stylesheet" type="text/css" />
<link href="/Content/kendo/2013.1.703/kendo.dataviz.min.css" rel="stylesheet" type="text/css" />
<link href="/Content/kendo/2013.1.703/kendo.blueopal.min.css" rel="stylesheet" type="text/css" />
<link href="/Content/kendo/2013.1.703/kendo.dataviz.blueopal.min.css" rel="stylesheet" type="text/css" />
<script src="/Scripts/kendo/2013.1.703/jquery.min.js"></script>
<script src="/Scripts/kendo/2013.1.703/kendo.all.min.js"></script>
<script src="/Scripts/kendo/2013.1.703/kendo.aspnetmvc.min.js"></script>
<script src="/Scripts/jquery.validate.min.js"></script>
<script src="/Scripts/jquery.validate.unobtrusive.min.js"></script>
<script src="/Scripts/jquery.unobtrusive-ajax.min.js"></script>
<script src="/Scripts/modernizr-2.6.2.js"></script>

<h2>
"Dropdownlistfor retrieval"</h2>
<form action="/Status/AddSingleStatus?HttpMethod=POST&amp;InsertionMode=Replace&amp;LoadingElementDuration=0" id="form0" method="post"><div class="validation-summary-valid" id="validationSummary"><ul><li style="display:none"></li>
</ul></div> <table>
<tr>
<td>
<div class="display-label">
<label for="Description">Description</label>;
</div>
<div class="editor-field">
<select id="StatusID" name="StatusID"><option value="1">Not Started</option>
<option value="2">In Progress</option>
<option value="3">Completed</option>
<option value="4">Deferred</option>
<option value="8">Reassigned</option>
<option value="9">NonIssue</option>
<option value="10">In Review</option>
<option value="11">Non Starter</option>
<option value="13">Post Review</option>
<option value="14">Reassigned</option>
</select>;
<span class="field-validation-valid" id="StatusID_validationMessage"></span>
</div>
</td>
</tr>
<tr>
<td>
<input type="submit" value='Add' />
</td>
</tr>
</table>
</form><script type="text/javascript">


<script>
$(function () {
$("form0").submit(function(){
var selTypeText= $("#StatusID option:selected").text();
$("#Description").val(selTypeText);
});
});
</script>

最佳答案

尝试将点击处理程序附加到按钮:

$(':submit').click(function () {
var selTypeText= $("#StatusID option:selected").text();
$("#Description").val(selTypeText);
});

或者,您可以使用 ID 在服务器端检索描述。重新创建您存储在 ViewData["statuses"] 中的列表并执行以下操作:

// where list holds the same list that was set to ViewData["statuses"]
list.Where(x => x.StatusID == idFromPost).First().Description

关于jquery - 从 Html.DropDownListFor 获取文本,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/18561973/

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