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我们知道,BeginForm()方法能创建一个Form标签,因此可以结合表单级的方法,在这个页面中。我一直在考虑Html.BeginForm()方法和Ajax.BeginForm()方法在MVC3中有什么不同。读了很多博客,很多人都强调了一件事:Ajax Form,Form被提交是使用了JavaScript异步提交的。
Html Form和 Ajax Form区别:
<span style="font-family:KaiTi_GB2312;font-size:18px;">@{ ViewBag.Title = "Home Page"; } <h2>@ViewBag.Message</h2> <p> @using(Html.BeginForm("TestHtmlRedirect", "Test",FormMethod.Post, null)) { <input type="submit"value="Html PsBk Click" /> } </p></span>
<span style="font-family:KaiTi_GB2312;font-size:18px;"> //This section of code is forTestHtmlView.cshtml public ActionResult TestHtmlView() { ViewBag.Message = "HtmlForm——This is a HTML form"; return View(); } [HttpPost] public ActionResult TestHtmlRedirect() { returnRedirectToAction("TestAjaxView", "Test", null); } //End of the section of code forTestHtmlView.cshtml</span>
看一下TestHtmlRedirect()方法的实现体,我们想从该视图重定向到另一个视图TestAjaxView.cshtml。
<span style="font-family:KaiTi_GB2312;font-size:18px;">@{ ViewBag.Title = "Test Page"; } <scriptsrc="@Url.Content("~/Scripts/jquery.unobtrusive-ajax.min.js")"type="text/javascript"></script> <h2>@ViewBag.Message</h2> <p> @using(Ajax.BeginForm("TestAjaxRedirect", "Test",FormMethod.Post, null)) { <input type="submit"value="Ajax PsBk Click" /> } </p></span>
<scriptsrc="@Url.Content("~/Scripts/jquery.unobtrusive-ajax.min.js")"type="text/javascript"></script>
还要确保在Web.Config文件中支持JS的执行,需要此配置文件中添加如下标签:
<span style="font-family:KaiTi_GB2312;font-size:18px;"> <!--启用客户端验证,Start。。。--> <addkey="ClientValidationEnabled" value="true"/> <!--支持JavaScript的执行--> <addkey="UnobtrusiveJavaScriptEnabled" value="true"/></span>
<span style="font-family:KaiTi_GB2312;font-size:18px;">//This section ofcode is for TestAjaxView.cshtml public ActionResult TestAjaxView() { ViewBag.Message = "AjaxForm——This is a AJAX form"; return View(); } [HttpPost] public ActionResult TestAjaxRedirect() { returnRedirectToAction("About", "Test", null); } //End of Section of code forTestAjaxView.cshtml</span>
看一下TestAjaxRedirect()方法的实现体,我们想从该视图重定向到另一个视图About.cshtml。
(附录:
(1)About.cshtml:
<span style="font-family:KaiTi_GB2312;font-size:18px;">@{ ViewBag.Title = "关于我们"; } <h2>关于</h2> <p> 将内容放置在此处。 </p></span>
(2)Test控制器中添加About方法:
<span style="font-family:KaiTi_GB2312;font-size:18px;">public ActionResult About() { return View(); }</span>
(3)Global.asax
<span style="font-family:KaiTi_GB2312;font-size:18px;">using System; usingSystem.Collections.Generic; using System.Linq; using System.Web; usingSystem.Web.Mvc; usingSystem.Web.Routing; namespaceComplaintManageSystem { // 注意: 有关启用 IIS6 或 IIS7 经典模式的说明, // 请访问 http://go.microsoft.com/?LinkId=9394801 public class MvcApplication :System.Web.HttpApplication { public static voidRegisterGlobalFilters(GlobalFilterCollection filters) { filters.Add(newHandleErrorAttribute()); } public static voidRegisterRoutes(RouteCollection routes) { routes.IgnoreRoute("{resource}.axd/{*pathInfo}"); routes.MapRoute( "Default", // 路由名称 "{controller}/{action}/{id}", // 带有参数的 URL new { controller ="Test", action = "TestHtmlView", id =UrlParameter.Optional } // 参数默认值 ); } protected void Application_Start() { AreaRegistration.RegisterAllAreas(); RegisterGlobalFilters(GlobalFilters.Filters); RegisterRoutes(RouteTable.Routes); } } } </span>
)
图1
当我点击图1中“Html PsBk Click”按钮时,TestHtmlRedirect()方法被调用,并且视图重定向到TestAjaxView.cshtml,如下图:
图2
现在,考虑一件事,当我点击图2中"Ajax PsBk Click"按钮时,是否会发生同样的事,视图会重定向到About.cshtml?点击后,发现这件事并没有发生。
点击按钮后,TestAjaxRedirect()方法被调用,重定向语句段执行,但是视图并没有重定向。原因是:表单的提交使用了JavaScript的异步提交。正如我们看到的,操作的执行是异步的,Ajaxforms是适用于多种情况的,比如你需要修改或保存时是异步操作,但是不能重定向到其他表单。
<span style="font-family:KaiTi_GB2312;font-size:18px;">using System; usingSystem.Collections.Generic; using System.Linq; using System.Text; usingSystem.Reflection; using Model.Adapter; namespaceModel.Entity { public class PersonnelModel { public string UserName { get; set; } public string MailAdress { get; set; } } }</span>
HtmlViewModel.cshtml:
<span style="font-family:KaiTi_GB2312;font-size:18px;">@modelHtmlVsAjaxBeginForm.Models.PersonnelModel @{ ViewBag.Title ="HtmlViewModel"; } <h2>HtmlViewModel</h2> @using (Html.BeginForm("HtmlViewModel","Home",null)) { @Html.ValidationSummary(true) <fieldset> <legend>PersonnelModel</legend> <divclass="editor-label"> @Html.LabelFor(model =>model.UserName) </div> <divclass="editor-field"> @Html.EditorFor(model =>model.UserName) @Html.ValidationMessageFor(model => model.UserName) </div> <divclass="editor-label"> @Html.LabelFor(model =>model.MailAdress) </div> <divclass="editor-field"> @Html.EditorFor(model =>model.MailAdress) @Html.ValidationMessageFor(model => model.MailAdress) </div> </fieldset> <p> <input type="submit"value="Html Form Action" /> </p> }</span>
AjaxViewModel.cshtml:
<span style="font-family:KaiTi_GB2312;font-size:18px;">@model Model.Entity.PersonnelModel @{ ViewBag.Title = "AjaxViewModel"; } <script src="@Url.Content("~/Scripts/jquery.unobtrusive-ajax.min.js")" type="text/javascript"></script> <h2>AjaxViewModel</h2> @using (Ajax.BeginForm("AjaxViewModel", "Test", new AjaxOptions { UpdateTargetId = "result" })) { @Html.ValidationSummary(true) <fieldset> <legend>PersonnelModel</legend> <div id="result"></div> <div class="editor-label"> @Html.LabelFor(model => model.UserName) </div> <div class="editor-field"> @Html.EditorFor(model => model.UserName) @Html.ValidationMessageFor(model => model.UserName) </div> <div class="editor-label"> @Html.LabelFor(model => model.MailAdress) </div> <div class="editor-field"> @Html.EditorFor(model => model.MailAdress) @Html.ValidationMessageFor(model => model.MailAdress) </div> </fieldset> <p> <input type="submit" value="Ajax Form Action" /> </p> }</span>
<span style="font-family:KaiTi_GB2312;font-size:18px;">//HTML Form Method //Purpose: Will return the belowcontent, once after the method triggered. [HttpPost] public ActionResultHtmlViewModel(PersonnelModel Pmodel) { return Content("Hi" + Pmodel.UserName + ", Thanks for the details, a mail will be sentto " + Pmodel.MailAdress + " with all the login details.","text/html"); } //AJAX Form Method //Purpose: Will return the belowcontent, once after the method triggered. [HttpPost] public ActionResultAjaxViewModel(PersonnelModel Pmodel) { return Content("Hi" + Pmodel.UserName + ", Thanks for the details, a mail will be sentto " + Pmodel.MailAdress + " with all the login details.","text/html"); }</span>
HtmlViewModel.cshtml加载:
文本框中输入数据:
点击“Html Form Action”按钮后,运行效果:
弹出了新页面,将返回的数据显示
AjaxViewModel.cshtml加载:
文本框中输入数据:
点击“Ajax Form Action”按钮后,运行效果:
页面无刷新,将返回的数据显示在原页面
(注:当然在Html forms中也可以产生如上Ajaxfroms中的效果,例如:写js代码,使用Ajax请求函数)
Html.BeginForm与Ajax.BeginForm都是MVC架构中的表单元素;
区别:Html.BeginForm是普通的表单提交,而Ajax.BeginForm是支持异步的表单提交;
Ajax.BeginForm()优点:不用再自己去用JQ代码了,直接用MVC自代的Ajax.BeginForm就可以很容易的完成一个异步的表单提交动作。
Html.BeginForm() vs Ajax.BeginForm() in MVC3
标签:style blog http color os java 使用 io strong
原文地址:http://blog.csdn.net/hanxuemin12345/article/details/38872807