Question

如何在ASP.NET MVC中上传包含其他数据的文件？这就是我到目前为止所做的：

 @using (Html.BeginForm("CreateSiteLogo", "SiteSettings", FormMethod.Post))
 {
     @Html.TextBoxFor(a=>a.SiteNameKey)

     <input type="file" name="logo" id="logo" />
     <input type="submit" />
 }

动作：

[HttpPost]
public ActionResult CreateSiteLogo(SiteSettingsAPIModel siteSetting)
{
    // Handle model
}

型号：

public class SiteSettingsAPIModel
{
    public int Id { get; set; }
    public string SiteNameKey { get; set; }
    public byte[] SiteLogo { get; set; }
    public string ImageFormat { get; set; }
}

我只能获取输入[text]的值，而不能输入[file]。我尝试使用Request.Files[0]，但我总是变空。

Answer 1

如果您在View中使用文件上传，则必须在BeginForm中指定enctype =“multipart / form-data”

    @using (Html.BeginForm("CreateSiteLogo", "SiteSettings", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
    @Html.TextBoxFor(a => a.SiteNameKey)

    <input type="file" name="logo" id="logo" />
        <input type="submit" />
}

并在控制器方面，

public ActionResult CreateSiteLogo(SiteSettingsAPIModel siteSetting, HttpPostedFileBase logo)
    {
        //Getting the file path
        string path = Server.MapPath(logo.FileName);

        //getting the file name
        string filename = System.IO.Path.GetFileName(logo.FileName);
        using (var binaryReader = new BinaryReader(logo.InputStream))
        {
            fileContent = binaryReader.ReadBytes(logo.ContentLength);
        }
        siteSetting.SiteLogo = fileContent;

        return View();
    }

控制器代码应根据您的要求进行修改。希望它有用

Answer 2

这可能有所帮助：

@model SandBox.Web.Models.SiteSettingsAPIModel
@using (Html.BeginForm("CreateSiteLogo", "SiteSettings", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
    @Html.TextBoxFor(a => a.SiteNameKey)

    <input type="file" name="SiteLogo" id="logo" />
    <input type="submit" />
}

public class SiteSettingsAPIModel
{
    public int Id { get; set; }
    public string SiteNameKey { get; set; }
    public HttpPostedFileBase SiteLogo { get; set; }
    public string ImageFormat { get; set; }
}

如何在ASP.NET MVC中上载包含其他数据的文件

2 个答案: