请教.net mvc4 提交内容包含html标签，报错问题。

<system.web>

<httpRuntime targetFramework="4.5" requestValidationMode="2.0" />

<pages validateRequest="false" clientIDMode="AutoID"></pages>

</system.web>

加上这个就行了，不要问我为什么，可以自己百度一下

Html 5 的有一些File API，对Form表单增强的特性，让我们轻松支持多文件上传，看下面的Html片断代码:

<form action="/Home/Upload" enctype="multipart/form-data" id="form2" method="post">

<input type="file" name="fileToUpload" id="fileToUpload2" multiple="multiple" />

<input type="submit" value="submit" />

</form>

那在Asp.net MVC web application中，我们可以这么实现：

@using (Html.BeginForm("Upload", "Home", FormMethod.Post, new { enctype = "multipart/form-data", id = "form2" }))

{

<label for="file">Upload Image:</label>

<input type="file" name="fileToUpload" id="fileToUpload2" multiple="multiple" />

<input type="submit" value="Upload Image by submit" />

}

假设这是一个HomeController下View, 即将提交到Upload的Action,看下面服务端的代码:

[HttpPost]

public ActionResult Upload(HttpPostedFileBase[] fileToUpload)

{

foreach (HttpPostedFileBase file in fileToUpload)

{

string path = System.IO.Path.Combine(Server.MapPath("~/App_Data"), System.IO.Path.GetFileName(file.FileName))

file.SaveAs(path)

}

ViewBag.Message = "File(s) uploaded successfully"

return RedirectToAction("Index")

}

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