Upload a file to your website issue

Question

I have a button, when I click it, it will upload c:\test.jpeg, to my web address.

I'm using the namespace as

Using System.Net;

Here is my button click code;

WebClient  Client = new WebClient();
Client.UploadFile("http://hesapmakinesi.freeiz.com", 
     "c:\deneme.jpg");

I want it to pretend to be a FTP program to upload files to my website. But I think I'm absolutaley mistaken, because I'm not asked any ftp server name, user name and also password. Where am I mistaken?

Thanks in advance.

Answer 1

If you want it to upload using FTP, you will need to specify a valid FTP location (ftp://).  Also, have you looked into specifying the credentials via the WebClient:

http://msdn.microsoft.com/en-us/library/system.net.webclient.credentials.aspx

Additionally, if you want to upload the file via the webpage, the destination URI must accept a POST (as outlined in the Remarks section of the following page):

http://msdn.microsoft.com/en-us/library/36s52zhs.aspx

Answer 2

HI ilerleartik

if you want to Upload file from client to FTP Server.

please use simply smart FTP client Warper class FtpWebRequest

see fellowing uri.

http://msdn.microsoft.com/en-us/library/system.net.ftpwebrequest.aspx

have a nice day.

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DON'T TRY SO HARD,THE BEST THINGS COME WHEN YOU LEAST EXPECT THEM TO.

Answer 3

Hi Ilerleartik,

 The following sample code will upload a file and save it on the webserver. On the HTML view of the page, you need to place a Text box with a browse button which can be done with the following html tag:

<INPUT id="filUpload" type="file" name="filUpload" runat="server"> 

Now put a button on the screen and call it "cmdUpload", then double click the button to go to the click event and add this code in your code behind file:

private void cmdUpload_Click(object sender, System.EventArgs e) 
{
         string myFolder = "Images"
      if(base.Settings.fldAdsFolder.Length > 0)
      {
         string uploadPath = base.MappedApplicationPath + myFolder + @"\";
         this.litUploadError.Text = "Your file has been posted to the server.";
         //before actual upload so upload func can overwrite if error.
         UploadImage(uploadPath);
      }
      else
      {
         this.litUploadError.Text = "You must set the Ads Folder in Settings first.";
      }
 }
private bool UploadImage(string UploadPath)
{
   bool retVal = true;
   string strFileName;
   string strFilePath;
   string strType;
   string strFolder = UploadPath; //save it here
   string err = "";
   string ext = "";
   if(filUpload.Value != "")
   {
      strFileName = base.GetFileName(filUpload.PostedFile.FileName); 
      strType = filUpload.PostedFile.ContentType;
      bool allowedType = false;
      switch(strType)
      {
         case("image/gif"):
               allowedType = true;
               ext = ".gif";
               break;
         case("image/jpg"):
               allowedType = true;
               ext = ".jpeg";
               break;
         case("image/jpeg"):
               allowedType = true;
               ext = ".jpeg";
               break;
        case("image/pjpeg"):
               allowedType = true;
               ext = ".jpeg";
               break;
       case("application/x-shockwave-flash"): 
               allowedType = true;
               ext = ".swf";
               break;
       default:
               allowedType = false;
               err = "The file is not an allowed file type (ie: gif, jpg, jpeg, swf)";
               break;
      }
   if (allowedType) 
   {
      // Create the directory if it does not exist.
         if(!Directory.Exists(strFolder))
         {
            string strFolderToCreate = strFolder;
            if(strFolder.EndsWith(@"\"))
         strFolderToCreate = strFolder.Substring(0,(strFolderToCreate.Length-1));
         Directory.CreateDirectory(strFolderToCreate);
         }
         // Save the uploaded file to the server.
         strFilePath = strFolder + strFileName;
         if(File.Exists(strFilePath))
         {
            //only shows file name to user
            err = strFileName + " already exists on the server!";
         }
         else
         {
            filUpload.PostedFile.SaveAs(strFilePath);
         }
      }
      else //not allowed type, only images allowed
      {
         err = strFileName + " is not a valid image file.";
      }
   }
   if(err.Trim().Length > 0) 
   {
      this.litUploadError.Text = err.Trim();
      retVal = false;
   }
   return retVal; //if it returns as "false" don't continue to save. 
}
//You should really stick this function in a different class where you can reuse it better.
public static string MappedApplicationPath
{
   get
   {
      string APP_PATH = System.Web.HttpContext.Current.Request.ApplicationPath.ToLower();
      if(APP_PATH == "/")      //a site
         APP_PATH = "/";
      else if(!APP_PATH.EndsWith(@"/")) //a virtual
         APP_PATH += @"/";
      string it = System.Web.HttpContext.Current.Server.MapPath(APP_PATH);
      if(!it.EndsWith(@"\"))
         it += @"\";
      return it;
   }
}

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Regards, http://shwetamannjain.blogspot.com