自定义Ajax帮助程序在MVC中未命中控制器

Question

我为搜索文本框找到了一个很好的Ajax助手示例，如下所示：

public static MvcHtmlString Textbox(this AjaxHelper ajaxHelper, string name, 
    AjaxOptions ajaxOptions, object htmlAttributes)
{
    var tag = new TagBuilder("input");
    tag.MergeAttribute("name", name);
    tag.MergeAttribute("type", "text");
    tag.MergeAttributes(HtmlHelper.AnonymousObjectToHtmlAttributes(htmlAttributes));
    tag.MergeAttributes((ajaxOptions ?? new AjaxOptions()).ToUnobtrusiveHtmlAttributes());
    return MvcHtmlString.Create(tag.ToString(TagRenderMode.Normal));
}

从这个例子开始，我试图制作一个自定义的"AjaxButton"，直到现在我有了这个助手：

public static MvcHtmlString AjaxButton(this AjaxHelper ajaxHelper, int jobId, bool apply)
{
    var myAjaxOptions = new AjaxOptions()
    {
        Url = "JobCardView/UserApply"+jobId,
        HttpMethod = "post",
        InsertionMode = InsertionMode.Replace,
        UpdateTargetId = "userInfo",
        OnSuccess = "CallBackCardView"
    };
    var tag = new TagBuilder("button");
    var color = apply ? "warning" : "primary";
    tag.MergeAttribute("class", "btn btn-"+color);
    tag.MergeAttribute("data-dismiss", "modal");
    var text = apply ? "Not Interested" : "Interested";
    tag.SetInnerText(text);

    tag.MergeAttributes((myAjaxOptions).ToUnobtrusiveHtmlAttributes());
    return MvcHtmlString.Create(tag.ToString(TagRenderMode.Normal));
}

其呈现以下Html:

    <button 
class="btn btn-warning" 
data-ajax="true" 
data-ajax-method="post" 
data-ajax-mode="replace" 
data-ajax-success="CallBackCardView" 
data-ajax-update="#userInfo" 
data-ajax-url="JobCardView/UserApply2" 
data-dismiss="modal">
Not Interested
</button>

如何在此帮助程序中提供Url以便按预期运行？

我有Ajax.ActionLink，它有相同的选项，运行正常。

Answer 1

不要硬编码url（忘记在jobId参数前附加/）：

Url = "JobCardView/UserApply"+jobId

尝试使用内置的框架工具来处理url（UrlHelper）:

Url = new UrlHelper(ajaxHelper.ViewContext.RequestContext).Action("UserApply", "JobCardView", jobId)

这样你就可以得到一个正确的网址：

data-ajax-url="JobCardView/UserApply/2"