How to Save multiple files in asp.net 4.0 by Fileupload1 Control with multiple fileupload2 control?

Question

How to Save multiple files in asp.net 4.0 by Fileupload Control with multiple fileupload control? I have two fileupload control one for image and second for thumbimage. So I want to save multiple image and thumbimage ?

Answer 1

You are actually overwriting the fist file with the second one when you are in the loop. I would suggest you to create a list for the files and add to the list in the loop like below. You will then have a list of file when you can use firstOrDefault() for the first item as well as use Skip() and Take() to select any item you want.

HttpFileCollection uploadedFiles = Request.Files;
List<HttpPostedFile> fileList1 = new List<HttpPostedFile>();
List<HttpPostedFile> fileList2 = new List<HttpPostedFile>();



for (int i = 0; i < uploadedFiles.Count; i++)
{
    HttpPostedFile hpf = uploadedFiles[i];
    var hpfKey = uploadedFiles.Keys[i];
    if (hpfKey.IndexOf("FileUpload1") > 0)
    {
        fileList1.Add(hpf);
    }
    if (hpfKey.IndexOf("FileUpload2") > 0)
    {
        fileList2.Add(hpf);
    }
}

Update:

Now to get the first file you call FirstOrDefault() on the list like below:

 fileList1.FirstOrDefault();

And to get the second file :

fileList1.Skip(1).FirstOrDefault();

Answer 2

HttpFileCollection uploadedFiles = Request.Files;

    int i = uploadedFiles.Count;


    List<HttpPostedFile> fileList1 = new List<HttpPostedFile>();
    List<HttpPostedFile> fileList2 = new List<HttpPostedFile>();

    if (i > 0)
    {
        for (int j = 0; j < i/2; j++)
        {
            fileList1.Add(uploadedFiles[j]);
        }
    }

    if (i > 0)
    {
        for (int j = i / 2; j < i; j++)
        {
            fileList2.Add(uploadedFiles[j]);
        }
    }

    int filecount = fileList1.Count;
   if (filecount > 0)
    {
        for (int j = 0; j < filecount; j++)
        {
     string image =  fileList1[j].FileName;
    fileList1[j].SaveAs(imagepath);
    string image =  fileList2[j].FileName;
    fileList2[j].SaveAs(imagepath);
    }
   }