Asynchronous HTTPS Upload

Demonstrates how to do an HTTPS upload asynchronously in a background thread. The Chilkat Upload software is freeware and may be used in both commercial and non-commercial applications and websites.

Download Chilkat .NET for 2.0 / 3.5 Framework

Download Chilkat .NET for 1.0 / 1.1 Framework

Chilkat.Upload upload = new Chilkat.Upload();

//  Specify the page (ASP, ASP.NET, Perl, Python, Ruby, CGI, etc)
//  that will process the HTTP Upload.
//  You must change these values to your hostname/path.
upload.Hostname = "www.yourwebserver123.com";
upload.Path = "/receiveUpload.asp";

//  To upload via HTTPS, you only need to set the port
//  and "Ssl" property.  All other programming remains the same:
upload.Ssl = true;
upload.Port = 443;

//  Add one or more files to be uploaded.
upload.AddFileReference("file1","dude.gif");
upload.AddFileReference("file2","pigs.xml");
upload.AddFileReference("file3","sample.doc");

//  Begin the HTTPS upload in a background thread:
bool success;
success = upload.BeginUpload();
if (success != true) {
    MessageBox.Show(upload.LastErrorText);
}
else {
    MessageBox.Show("Files uploaded!");
}

//  Wait for the upload to finish.
//  Print the progress as we wait...
while ((upload.UploadInProgress == true)) {
    //  We can abort the upload at any point by calling:
    //  upload.AbortUpload();

    //  Display the percentage complete and the number of bytes uploaded so far..
    //  The total upload size will become set after the upload begins:
    textBox1.Text += upload.PercentUploaded + "% "
         + upload.NumBytesSent + "/" + upload.TotalUploadSize + "\r\n";

    //  Sleep 2/10ths of a second.
    upload.SleepMs(200);

}

//  Did the upload succeed?
if (upload.UploadSuccess == true) {
    MessageBox.Show("Files uploaded!");
}
else {
    MessageBox.Show(upload.LastErrorText);
}