File Upload as Part of Form with Other Fields

问题:

I have an ASP.NET MVC website. I need a page where the user must enter several fields, including an image file.

I could find many, many references for uploading a file using MVC. But they don't upload the file as part of a form with other fields.

Ideally, fields and file will be sent to a single controller. Any tips?

回答1:

You can use FineUploader. See Demo

Valums Uploader. It uses pure Javascript (uploads file using Iframe)

You might need to use a client plugin. Plupload is one possible choice. And here's an example of how you could integrate it in your MVC application. Another popular plugin which supports this functionality is Uploadify.

Asp.net mvc 3 file uploads using the fileapi

See Progress Demo 1, 2 & 3 at http://jquery.malsup.com/form/#file-upload

Ref: http://forums.asp.net/t/1897410.aspx/1?MVC4+File+Upload

回答2:

If you do not use third party libraries, try this:

Model

public class Strategy 
    {
        public int ID { get; set; }
        public string Name { get; set; }
        public byte[] File { get; set; }

    }

View

 @model TEST.Model.Strategy
 @using (Html.BeginForm("Add", "Strategy", FormMethod.Post, new { @id = "frmStrategy", enctype = "multipart/form-data" }))
        {
            @Html.TextBoxFor(x => x.Name)
            <input id="templateFile" name="templateFile" type="file"  />
            @Html.HiddenFor(x => x.ID)

        }

Controller

[HttpPost]
        public ActionResult Add(Strategy model, HttpPostedFileBase templateFile)
        {


            if (templateFile != null && templateFile.ContentLength > 0)
            {
                try
                {
                    var fname = Path.GetFileName(templateFile.FileName);
                    using (MemoryStream ms = new MemoryStream())
                    {
                      templateFile.InputStream.CopyTo(ms);
                      byte[] array = ms.GetBuffer();
                      model.File = array;
                    }
                    ...