Asp.net MVC RETURNURL变量未显示与方法FormMethod.Post在Html.BeginForm [英] Asp.net MVC ReturnUrl variable not showing up with method FormMethod.Post in Html.BeginForm

问题描述

在MVC3的默认模板设置的登录页面的查询字符串'RETURNURL'变量。那么这个页面回发到控制器

The default template in MVC3 sets a 'returnurl' variable in the query string of the logon page. This page then posts back to a controller

@using (Html.BeginForm()) {

这是然后拿起控制器像这样

That is then picked up in the controller like so

[HttpPost]
    public ActionResult LogOn(LogOnModel model, string returnUrl)
    {

我想一个CSS类添加到窗体所以我改变了帮手：

I wanted to add a CSS class to the form so I changed the helper to:

@using (Html.BeginForm("LogOn", "Account", FormMethod.Post, new { @class = "form-horizontal" }))

但是，在查询字符串现在信息没有在控制器获取集合

But now information in the query string isn't getting set in the controller.

我可以隐藏的输入值始终设置在形式retrunurl，但我不知道是否有一个简单的方法。

I could always set a hidden input value to the retrunurl in the form but I didn't know if there was a simpler way.

感谢

推荐答案

您需要使用隐藏域在这种情况下，因为这种超负荷并不preserve其中载有RETURNURL变量原来的查询字符串。或者，如果你不想使用隐藏字段，你可以使用一个查询字符串参数：

You need to use a hidden field in this case because this overload doesn't preserve the original query string which contained the returnurl variable. Or if you don't want to use a hidden field you could use a query string parameter:

@using (Html.BeginForm(null, null, new { returnUrl = Request["returnurl"] }, FormMethod.Post, new { @class = "form-horizontal" }))
{
    ...
}

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