如何访问在ASP.NET Core中从jquery文件上传发送的其他表单数据？

Question

I am using jquery file upload to upload large files in chunks to server. I need to send additional data to server along with the file.

I found this article that suggests adding formData as below.

$form = $('#fileupload').fileupload({
            maxChunkSize: 3000000,
            url: '/FileAPI/Upload',
            formData: { example: 'test' }
         });

How can I access the formData from HttpContext.Request in asp.net core ? Where is it available? Thanks for any suggestions.

[HttpPost]
[Route("Upload")]

public ActionResult Upload()
{
    var CurrentContext = HttpContext.Request;
}

Answer 1

just add it to the function signature

this should work

[HttpPost]
[Route("Upload")]
public ActionResult Upload(IEnumerable<IFormFile> files, string example)
{   
   //do something with data
}

Answer 2

How can I access the formData from HttpContext.Request in asp.net core ?

From the article you provide , "formData object, formData: {example: 'test'} will arrive on server-side as POST parameter"

You could also try the following method to get it :

 [HttpPost]
 [Route("Upload")]
 public void Upload()
 {
        var dict = Request.Form.ToDictionary(x => x.Key, x => x.Value.ToString());
       //In that case, you could iterate over your dictionary or you can access values directly:
        var CurrentContext = dict["example"];
  }