How to upload afile into googledrive using desktop application C#

See more:

C#3.5

C#5.0

C#6.0

i have a desktop application which i want to use to upload Files into my google drive.i created a Method To Upload the file > i call the method in the button click.
but the problem is the code doesn't work.
can any one help

What I have tried:

private void btnUpload_Click(object sender, EventArgs e)
{
Upload(@"c:\Serial.Text");// this where i put the file to upload it
}
public void Upload(string FileToUpload)
{
try
{
FileInfo ToUpload = new FileInfo(FileToUpload);
FtpWebRequest request = (FtpWebRequest)WebRequest.Create("https://drive.google.com/drive/my-drive/"+ToUpload.Name);
request.Method = WebRequestMethods.Ftp.UploadFile;
request.Credentials = new NetworkCredential("UserName", "Password");
Stream ftpstream = request.GetRequestStream();
FileStream ft = File.OpenRead(FileToUpload); int length = 1024;
byte[] buffer = new byte[length];
int byteread = 0;
do
{
byteread = ft.Read(buffer, 0, length);
ftpstream.Write(buffer, 0, byteread);
}
while (byteread != 0);
ft.Close();
ftpstream.Close();
}
catch
{

}
}