Asp.net mvc 无法使用MVC4中的[HttpPost]进行删除

当我在下面用[HttpPost]定义Delete方法时，无法从视图中调用Delete方法。但是，当删除[HttpPost]行时，它工作正常。我尝试了很多东西，实际上这可能和我认为@Html.Hidden或@使用（Html.BeginForm（）的错误用法有关。所以，你们能在下面澄清我的观点吗

1） 单击WebGrid上的“删除”按钮后，我不会打开视图。在一个确认方法之后，应该调用控制器中的Delete方法，并通过保持在同一页面上来删除记录。那么，我下面的Delete方法不使用[HttpPost]有错吗

2） 如果可能，我应该如何使用[HttpPost]来删除方法？我必须对视图进行哪些更改，即使用表单或隐藏属性

查看：

@model IEnumerable<MyProject.Domain.Entities.Applicant>
@using PRMeetingReg.WebUI.HtmlHelpers

@{
    var grid = new System.Web.Helpers.WebGrid(
        source: Model,
        columnNames: new List<string>() { "Title" },
        ajaxUpdateContainerId: "myGrid",
        defaultSort: "Name",
        canPage: true,
        canSort: true,
        rowsPerPage: 5
        );
    grid.SortDirection = SortDirection.Ascending;
}

<div class="Grid">
    @grid.GetHtml(
          tableStyle: "table", 
          headerStyle: "webgrid-header",
          footerStyle: "webgrid-footer", 
          rowStyle: "webgrid-row-style",
          alternatingRowStyle: "webgrid-alternating-row",
          selectedRowStyle: "webgrid-selected-row",
   firstText: "<<",
   lastText: ">>",
   mode: WebGridPagerModes.All,
   fillEmptyRows: true,
   numericLinksCount: 5,

   columns: grid.Columns(
    grid.Column("ApplicantID", "No", canSort: true),
    grid.Column("Name", "Name", canSort: true),
    grid.Column("Surname", "Surname", canSort: true),

    //for using multiple Html.ActionLink in a column using Webgrid
    grid.Column("Actions", format: (item) =>
     new HtmlString(
          @Html.ActionImage("../../Content/icons/detail.png", "Detail", "icon-link", "Detail", "Admin", new { applicantId= item.ApplicantID }).ToString() +
          @Html.ActionImage("../../Content/icons/edit.png", "Edit", "icon-link", "Edit", "Admin", new { applicantId= item.ApplicantID }).ToString() +
          @Html.ActionImage("../../Content/icons/delete.png", "Delete", "icon-link", "Delete", "Admin", new { applicantId= item.ApplicantID }).ToString()
     )
    )
    )
    )


<p>
    <input id="add" type="submit" value="Yeni Ekle" class="button" />   
</p>

</div>

[HttpPost]
public ActionResult Delete(int applicantId)
{
    Applicant deletedApplicant = repository.DeleteApplicant(applicantId);
    if (deletedApplicant != null)
    {
        TempData["message"] = string.Format("{0} was deleted",
        deletedApplicant.Name);
    }
    return RedirectToAction("Index");
}

public static MvcHtmlString ActionImage(this HtmlHelper html, string imagePath, string alt, string cssClass,
       string action, string controllerName, object routeValues)
{
    var currentUrl = new UrlHelper(html.ViewContext.RequestContext);
    var imgTagBuilder = new TagBuilder("img"); 
    imgTagBuilder.MergeAttribute("src", currentUrl.Content(imagePath));
    imgTagBuilder.MergeAttribute("title", alt);
    imgTagBuilder.MergeAttribute("class", cssClass);
    string imgHtml = imgTagBuilder.ToString(TagRenderMode.SelfClosing);
    var anchorTagBuilder = new TagBuilder("a"); 
    anchorTagBuilder.MergeAttribute("href", currentUrl.Action(action, controllerName, routeValues));
    anchorTagBuilder.InnerHtml = imgHtml; 
    string anchorHtml = anchorTagBuilder.ToString(TagRenderMode.Normal);
    return MvcHtmlString.Create(anchorHtml);
}

我的HTML助手：

@model IEnumerable<MyProject.Domain.Entities.Applicant>
@using PRMeetingReg.WebUI.HtmlHelpers

@{
    var grid = new System.Web.Helpers.WebGrid(
        source: Model,
        columnNames: new List<string>() { "Title" },
        ajaxUpdateContainerId: "myGrid",
        defaultSort: "Name",
        canPage: true,
        canSort: true,
        rowsPerPage: 5
        );
    grid.SortDirection = SortDirection.Ascending;
}

<div class="Grid">
    @grid.GetHtml(
          tableStyle: "table", 
          headerStyle: "webgrid-header",
          footerStyle: "webgrid-footer", 
          rowStyle: "webgrid-row-style",
          alternatingRowStyle: "webgrid-alternating-row",
          selectedRowStyle: "webgrid-selected-row",
   firstText: "<<",
   lastText: ">>",
   mode: WebGridPagerModes.All,
   fillEmptyRows: true,
   numericLinksCount: 5,

   columns: grid.Columns(
    grid.Column("ApplicantID", "No", canSort: true),
    grid.Column("Name", "Name", canSort: true),
    grid.Column("Surname", "Surname", canSort: true),

    //for using multiple Html.ActionLink in a column using Webgrid
    grid.Column("Actions", format: (item) =>
     new HtmlString(
          @Html.ActionImage("../../Content/icons/detail.png", "Detail", "icon-link", "Detail", "Admin", new { applicantId= item.ApplicantID }).ToString() +
          @Html.ActionImage("../../Content/icons/edit.png", "Edit", "icon-link", "Edit", "Admin", new { applicantId= item.ApplicantID }).ToString() +
          @Html.ActionImage("../../Content/icons/delete.png", "Delete", "icon-link", "Delete", "Admin", new { applicantId= item.ApplicantID }).ToString()
     )
    )
    )
    )


<p>
    <input id="add" type="submit" value="Yeni Ekle" class="button" />   
</p>

</div>

[HttpPost]
public ActionResult Delete(int applicantId)
{
    Applicant deletedApplicant = repository.DeleteApplicant(applicantId);
    if (deletedApplicant != null)
    {
        TempData["message"] = string.Format("{0} was deleted",
        deletedApplicant.Name);
    }
    return RedirectToAction("Index");
}

public static MvcHtmlString ActionImage(this HtmlHelper html, string imagePath, string alt, string cssClass,
       string action, string controllerName, object routeValues)
{
    var currentUrl = new UrlHelper(html.ViewContext.RequestContext);
    var imgTagBuilder = new TagBuilder("img"); 
    imgTagBuilder.MergeAttribute("src", currentUrl.Content(imagePath));
    imgTagBuilder.MergeAttribute("title", alt);
    imgTagBuilder.MergeAttribute("class", cssClass);
    string imgHtml = imgTagBuilder.ToString(TagRenderMode.SelfClosing);
    var anchorTagBuilder = new TagBuilder("a"); 
    anchorTagBuilder.MergeAttribute("href", currentUrl.Action(action, controllerName, routeValues));
    anchorTagBuilder.InnerHtml = imgHtml; 
    string anchorHtml = anchorTagBuilder.ToString(TagRenderMode.Normal);
    return MvcHtmlString.Create(anchorHtml);
}

---

提前感谢。

您的

ActionImage

自定义帮助程序将生成一个包含锚定标记的图像（

）。在HTML中，锚发送GET请求。您的控制器操作被HttpPost请求修饰，这解释了为什么从未调用它

---

一种可行的方法是使用AJAX请求并执行POST请求，而不是在单击删除链接时执行GET。

您的视图应该有一个表单？实际上没有，但为了使用相关id的隐藏属性并执行POST，我认为我需要使用表单元素。非常感谢您的良好解释。在这种情况下，导致这种情况的因素是锚元素。在这种情况下，我认为在删除记录时使用GET不是一个好主意。这是真的吗？另一方面，你能给我一个好的样品来删除一个记录吗？对不起，我以前从未使用过这种方法，我需要根据我的视图调整这种方法（如果必要，我应该修改控制器的Delete方法）。再次感谢…是的，GET不是在服务器上删除某些内容的正确动词。如果你将这个链接AJAXify，你甚至可以在这种情况下使用最正确的动词DELETE。我如何将它AJAXify？你能举个例子吗？提前感谢。您可以使用

jQuery.ajax

函数。