if you are desktop developer you know there is api "WebClient" to download a file from the web unfortunately in .netcf that api is absent but there is a alternative way of doing it by using IO streams and download a file see the below code snippet
public static bool fileDownloadDotNetCF(string url)
{
bool success = false;
string destination = getPath();
System.Net.HttpWebRequest request = null;
System.Net.WebResponse response = null;
Stream responseStream = null;
FileStream fileStream = null;
try
{
request = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(url);
request.Method = "GET";
request.Timeout = 100000; // 100 seconds
response = request.GetResponse();
responseStream = response.GetResponseStream();
fileStream = File.Open(destination + "\\temp.CAB", FileMode.Create, FileAccess.Write, FileShare.None);
// read up to ten kilobytes at a time
int maxRead = 10240;
byte[] buffer = new byte[maxRead];
int bytesRead = 0;
int totalBytesRead = 0;
// loop until no data is returned
while ((bytesRead = responseStream.Read(buffer, 0, maxRead)) > 0)
{
totalBytesRead += bytesRead;
fileStream.Write(buffer, 0, bytesRead);
}
// we got to this point with no exception. Ok.
success = true;
}
catch (Exception exp)
{
// something went terribly wrong.
MessageBox.Show(exp.ToString(), "Error Could not Download the file");
success = false;
}
finally
{
// cleanup all open streams.
if (null != responseStream)
responseStream.Close();
if (null != response)
response.Close();
if (null != fileStream)
fileStream.Close();
}
// if data transfer fails in between file download delet the
// partially downloaded file
if (!success && File.Exists(destination))
File.Delete(destination);
return success;
}
I dont know why wm .netcf team stripped such a important api from compact framework not only this there are tons of such API's which are very required and useful but not incorporated in compact framework.
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