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Posted by jerome on June 2, 2006, 5:31 am
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hi all;
I have a problem when i use a EDGE/GPRS connection. Sometimes it works fine,
but sometimes there is a problem.
I use the connection manager to connect my smarpthone by gprs, and when i'm
connected, I log in to a ftp server. After this, I send pictures by upload to
this server with the OpenNetCF librairy. But sometimes, i have this error :
"couldn't open passive data connection, no DataConnection IP was given."
Is someone know this problem ?
I use in this order:
if there are pictures to send
ConnectGPRS();
FTPLogin()
foreach( pictures in PicturesDirectory)
SendFiles(pictures) // here's the problem, not all the pictures are
sent
FTPLogout();
Disconnect();
Sometimes it works for the first and the third picture, sometimes just for
the first, sometimes for the second ...
Here's a part of my code:
public bool connectGPRS()
{
label1.Text = connMgr.Status.ToString();
DestinationInfoCollection DIC = connMgr.EnumDestinations();
long startTime;
bool is_connected = false;
try
{
foreach (DestinationInfo di in DIC)
{
if (di.description == "Internet")
{
int i = 0;
while (connMgr.Status.ToString() != "Connected" &
i<10)
{
connMgr.Connect(di.guid, true,
ConnectionMode.Asynch
ronous)
startTime = DateTime.Now.Ticks;
while ((!is_connected) & (DateTime.Now.Ticks -
start
Time < 20 * TimeSpan.TicksPerSecond))
{
if (connMgr.Status.ToString() ==
"Connected") is
_connected = true;
}
i++;
}
label1.Text = connMgr.Status.ToString();
}
}
}
catch (SystemException err)
{
MessageBox.Show(" err 700 " + err.Message);
return false;
}
return true;
}
public bool FTPLogin()
{
label1.Text = "try to login";
try
{
FtpRequestCreator creator = new FtpRequestCreator();
WebRequest.RegisterPrefix("ftp:", creator);
//Building our URI object
Uri testUri;
// Building our URI object
testUri = new Uri("ftp://10.3.3.42");
//Creating a new FtbRequest object
request = (FtpWebRequest)WebRequest.Create(testUri);
request.Credentials = new NetworkCredential("any", "any");
//Getting the Request stream
ftpRequestStream = request.GetRequestStream();
StreamReader reader = new StreamReader(ftpRequestStream);
string responseFTP = reader.ReadToEnd();
label1.Text = responseFTP;
//Connected
logined = true;
label1.Text = "logined";
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return false;
}
return true;
}
public bool SendFile(string PhotoPath)
{
progress.Text = "";
progressBar1.Value = 0;
label1.Text = "try to send";
string LocalFilePathText = PhotoPath;
string PhotoName = Path.GetFileName(PhotoPath);
string RemoteFilePathText = "\GSM\" + PhotoName;
/*string LocalFilePathText = "\My Documents\My
Pictures\test.txt"
;
string RemoteFilePathText = "\test.txt";*/
StreamReader Reader;
String commandReply;
try
{
// Open the input file. If the file does not exist, it's an
// error.
FileStream fs = new FileStream(LocalFilePathText,
FileMode.Open)
;
// Create the reader for the local file data.
BinaryReader r = new BinaryReader(fs);
label1.Text = "file opened";
// Opening the data connection, this must be done before
// we issue the command.
Stream ftpResponseStream =
request.GetResponse().GetResponseStre
am();
label1.Text = "bordel1";
BinaryWriter response = new BinaryWriter(ftpResponseStream);
// Prepare to send commands to the server.
StreamWriter writer = new StreamWriter(ftpRequestStream);
label1.Text = "bordel2";
// Set transfer type to IMAGE (binary).
writer.Write("TYPE I\r\n");
writer.Flush();
...
...
....
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