嗨，我是 MVC 的新手，所以请多多包涵。
我正在尝试做一个简单的 ajax 表单，它只接受插入并让用户知道记录已保存到数据库中。
我的问题是两个方面。
数据被插入数据库两次
编辑器不会被清除，并且消息不会显示。
我可以使用直接的 HTML 表单帖子来完成这项工作，但我想使用 ajax，然后引入某种加载 gif 或使用 spin.js。
我的代码：
_Layout.cshtml
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width" />
<title>@ViewBag.Title</title>
@Styles.Render("~/Content/css")
@Styles.Render("~/Content/kendo")
@Scripts.Render("~/bundles/modernizr")
@Scripts.Render("~/bundles/jquery")
@Scripts.Render("~/bundles/kendo")
@Scripts.Render("~/bundles/jqueryval")
</head>
<body>
<div id="wrapper" style="width:100%; text-align:center">
<img src="~/Content/Header.PNG" alt="MyHeader" />
</div>
@RenderBody()
@RenderSection("scripts", required: false)
</body>
</html>
关于控制器
public class AboutController : Controller
{
private readonly IMailRepository repository;
public AboutController(IMailRepository repo)
{
repository = repo;
}
public ActionResult AboutUs()
{
return View();
}
public ActionResult CreateMailing()
{
return View(new MailRequest());
}
[HttpPost]
public PartialViewResult CreateMailing(MailRequest model)
{
if (model == null)
{
return PartialView("_MailingData",new MailRequest());
}
if (ModelState.IsValid)
{
repository.SaveMailRequest(model);
ModelState.Clear();
TempData["message"] = string.Format("{0} has been added to the mailing list.", model.Email);
return PartialView("_MailingData",new MailRequest());
}
else
{
return PartialView("_MailingData",model);
}
}
}
_MailingDate.cshtml
@model MyProj.Models.MailRequest
@Html.EditorForModel()
<br/>
<input type="submit" value="Save"/>
<input type="button" value="Cancel"
onclick="location.href='@Url.Action("AboutUs", "About")' " />
@if (TempData["message"] != null)
{
<div>@TempData["message"]</div>
}
CreateMailing.cshtml
@model MyProj.Models.MailRequest
@{
ViewBag.Title = "Mailing List";
AjaxOptions ajaxOpts = new AjaxOptions
{
InsertionMode = InsertionMode.Replace,
UpdateTargetId = "ajaxreplace"
};
}
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>Mailing List Request</title>
</head>
<body>
<div id="ajaxrequest">
@using (Ajax.BeginForm(ajaxOpts))
{
@Html.Partial("_MailingData")
}
</div>
</body>
</html>
- - 更新
这是我的 BundleConfig.cs
public static class BundleConfig
{
// For more information on Bundling, visit http://go.microsoft.com/fwlink/?LinkId=254725
public static void RegisterBundles(BundleCollection bundles)
{
if (bundles == null) return;
// The jQuery bundle
bundles.Add(new ScriptBundle("~/bundles/jquery").Include(
"~/Scripts/jquery-{version}.js"));
//bundles.Add(new ScriptBundle("~/bundles/jquery").Include(
// "~/Scripts/jquery-{version}.js",
// "~/Scripts/jquery-migrate-1.1.1.js"));
bundles.Add(new ScriptBundle("~/bundles/jqueryui").Include(
"~/Scripts/jquery-ui-{version}.js"));
bundles.Add(new ScriptBundle("~/bundles/jqueryval").Include(
"~/Scripts/jquery.unobtrusive*",
"~/Scripts/jquery.validate*"));
// The Kendo JavaScript bundle
bundles.Add(new ScriptBundle("~/bundles/kendo").Include(
"~/Scripts/kendo.all.min.js",
// or kendo.all.min.js if you want to use Kendo UI Web and Kendo UI DataViz
"~/Scripts/kendo.aspnetmvc.min.js"));
bundles.Add(new StyleBundle("~/Content/css").Include("~/Content/site.css"));
bundles.Add(new StyleBundle("~/Content/themes/base/css").Include(
"~/Content/themes/base/jquery.ui.core.css",
"~/Content/themes/base/jquery.ui.resizable.css",
"~/Content/themes/base/jquery.ui.selectable.css",
"~/Content/themes/base/jquery.ui.accordion.css",
"~/Content/themes/base/jquery.ui.autocomplete.css",
"~/Content/themes/base/jquery.ui.button.css",
"~/Content/themes/base/jquery.ui.dialog.css",
"~/Content/themes/base/jquery.ui.slider.css",
"~/Content/themes/base/jquery.ui.tabs.css",
"~/Content/themes/base/jquery.ui.datepicker.css",
"~/Content/themes/base/jquery.ui.progressbar.css",
"~/Content/themes/base/jquery.ui.theme.css"));
// The Kendo CSS bundle
bundles.Add(new StyleBundle("~/Content/kendo").Include(
"~/Content/kendo.common.*",
"~/Content/kendo.uniform.*"));
// Clear all items from the ignore list to allow minified CSS and JavaScript files in debug mode
bundles.IgnoreList.Clear();
// Add back the default ignore list rules sans the ones which affect minified files and debug mode
bundles.IgnoreList.Ignore("*.intellisense.js");
bundles.IgnoreList.Ignore("*-vsdoc.js");
bundles.IgnoreList.Ignore("*.debug.js", OptimizationMode.WhenEnabled);
}
}
我认为我的数据库问题可能与我最终在页面的 html 中出现以下内容有关
<script src="/bundles/modernizr"></script>
<script src="/Scripts/jquery-2.0.0.js"></script>
<script src="/Scripts/jquery-2.0.3.js"></script>
<script src="/Scripts/kendo.all.min.js"></script>
<script src="/Scripts/kendo.aspnetmvc.min.js"></script>
<script src="/Scripts/jquery.unobtrusive-ajax.js"></script>
<script src="/Scripts/jquery.unobtrusive-ajax.min.js"></script>
<script src="/Scripts/jquery.validate.js"></script>
<script src="/Scripts/jquery.validate.min.js"></script>
<script src="/Scripts/jquery.validate.unobtrusive.js"></script>
<script src="/Scripts/jquery.validate.unobtrusive.min.js"></script>
我猜我不应该同时注册完整和最小 js 脚本，但不确定在仍然使用捆绑包的同时防止这种情况的最佳方法
我的 EFMailRepository
public class EFMailRepository : IMailRepository, IDisposable
{
private EFDbContext context = new EFDbContext();
public void SaveMailRequest(MailRequest mailRequest)
{
context.MailingList.Add(mailRequest);
context.SaveChanges();
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
// dispose managed resources
context.Dispose();
}
// free native resources
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
}