FTP Using C# .NET

The following snippet shows you to get particular content and I am trying to open the following content only,

try  
{  
    FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://Hostname.com/6.txt");  
    request.CachePolicy = new HttpRequestCachePolicy(HttpRequestCacheLevel.CacheIfAvailable);

    request.Method = WebRequestMethods.Ftp.DownloadFile;  

    request.Credentials = new NetworkCredential("maruthi", "******");  

    request.KeepAlive = false;  
    request.UseBinary = true;  
    request.UsePassive = true;  

    FtpWebResponse response = (FtpWebResponse)request.GetResponse();  

    Stream responseStream = response.GetResponseStream();  

    StreamReader reader = new StreamReader(responseStream);  

    Console.WriteLine(reader.ReadToEnd());  

    Console.WriteLine("Download Complete", response.StatusDescription);  

    reader.Close();  

    response.Close();  
}  
catch (WebException e)  
{  
    Console.WriteLine(e.Message.ToString());  
    String status = ((FtpWebResponse)e.Response).StatusDescription;  
    Console.WriteLine(status);  
}  
catch(Exception ex)  
{  
    Console.WriteLine(ex.Message.ToString());  
}  

Response

I placed some program data in that file. So content seems like it.

Step 4: Post a file

The following code will help you to post and send a file to FTP location.

public static void PostDatatoFTP(int i)  
{  
    try  
    {  
        FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://Hostname.com"+@"\"+"TestFile0.txt");  
        request.CachePolicy = new HttpRequestCachePolicy(HttpRequestCacheLevel.CacheIfAvailable);  
        request.Method = WebRequestMethods.Ftp.UploadFile;  
        request.Credentials = new NetworkCredential("maruthi", "******");  
        // Copy the contents of the file to the request stream.  
        StreamReader sourceStream = new StreamReader(@"E:\yourlocation\SampleFile.txt");  
        byte[] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());  
        sourceStream.Close();  
        request.ContentLength = fileContents.Length;  
        Stream requestStream = request.GetRequestStream();  
        requestStream.Write(fileContents, 0, fileContents.Length);  
        requestStream.Close();  
        FtpWebResponse response = (FtpWebResponse)request.GetResponse();  
        Console.WriteLine("Upload File Complete, status {0}", response.StatusDescription);  

        response.Close();  
    }  
    catch (WebException e)  
    {  
        Console.WriteLine(e.Message.ToString());  
        String status = ((FtpWebResponse)e.Response).StatusDescription;  
        Console.WriteLine(status);  
    }  
    catch(Exception ex)  
    {  
        Console.WriteLine(ex.Message.ToString());  
    }  
}  

Let us test and see whether the file is placed or not.

FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://Hostname.com/TestFile.txt");   

To read all file content.

Execute your console

static void Main(string[] args)  
{  
    Program.GetallContents();  
    Program.PostDatatoFTP(0);  
    Program.GetDataFromFTP();  
} 

References

• Upload Files With FTP

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