在ASP中使用级联ListBox的Ajax回发.净MVC3
本文关键字:Ajax 回发 MVC3 ListBox 级联 ASP | 更新日期: 2023-09-27 18:04:42
首先,我是一名ASP。NET MVC新手。这是我第一个使用ASP的项目。NET MVC,所以我还在学习。在过去的两年中,我的背景主要是WPF和XAML。
所以这是我的问题:我有三个级联listbox。第二个列表框数据依赖于第一个列表框,第三个列表框数据依赖于第二个列表框。我想使用Ajax刷新来填充每个列表中的数据。
这是我的索引。cshtml:
@model WebApplication.Models.DevelopmentModel
<!DOCTYPE html>
<html>
<head>
<title>Dashboard</title>
<script src="@Url.Content("~/Scripts/jquery.unobtrusive-ajax.min.js")" type="text/javascript"></script>
</head>
<body class="body" scroll="auto">
<div class="page">
<div class="content">
<div id="lists">
@Html.Partial("DevelopmentListsView", Model)
</div>
</div>
</div>
</body>
</html>
我DevelopmentListsView 。CSHTML看起来像这样:
@model WebApplication.Models.DevelopmentModel
@using (Ajax.BeginForm("Index", "Development", new AjaxOptions() { UpdateTargetId = "lists" } ))
{
@Html.ListBoxFor(m => m.SelectedApplication, new SelectList(ViewBag.Applications), new { onchange = "this.form.submit();" })
@Html.ListBoxFor(m => m.SelectedVersion, new SelectList(ViewBag.Versions), new { onchange = "this.form.submit();" })
@Html.ListBoxFor(m => m.SelectedFlow, new SelectList(ViewBag.Flows) )
}
我的模型看起来像:
public class DevelopmentModel
{
public string SelectedApplication { get; set; }
public string SelectedVersion { get; set; }
public string SelectedFlow { get; set; }
}
我的控制器是这样的:
public class DevelopmentController : Controller
{
//
// GET: /Development/
public ActionResult Index()
{
FillViewBag();
return View(new DevelopmentModel());
}
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult Index(DevelopmentModel model)
{
FillViewBag(model);
return PartialView("DevelopmentListsView", model);
}
private void FillViewBag(DevelopmentModel model = null)
{
//Magic to get all three lists dependent on the available data in the model:
ViewBag.Applications = applications;
ViewBag.Versions = versions;
ViewBag.Flows = flows;
}
}
现在,我想使用Ajax回调来检索数据,所以它不会每次刷新,但是当我单击其中一个Listbox项时,页面只显示DevelopmentListsView视图之后,不刷新任何东西。
谁能告诉我我做错了什么?感谢您的关注!
我自己想明白了:
我有两个错误:
我错过了jquery脚本包含在Index.cshtml:
<script src="@Url.Content("~/Scripts/jquery-1.5.1.min.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery.unobtrusive-ajax.min.js")" type="text/javascript"></script>
我使用了错误的提交(它应该是jQuery提交):
$(this.form).submit()
提交放置在我的模型
@model WebApplication.Models.DevelopmentModel
@using (Ajax.BeginForm("Index", "Development", new AjaxOptions() { UpdateTargetId = "lists" } ))
{
@Html.ListBoxFor(m => m.SelectedApplication, new SelectList(ViewBag.Applications), new { onchange = "$(this.form).submit()" })
@Html.ListBoxFor(m => m.SelectedVersion, new SelectList(ViewBag.Versions), new { onchange = "$(this.form).submit()" })
@Html.ListBoxFor(m => m.SelectedFlow, new SelectList(ViewBag.Flows) )
}
希望有一天能帮到别人。