Handle errors

Exceptions thrown by the component and its dependencies can easily be caught by using try catch block. The table below lists all exceptions that can be caught when using the component: 

The example below shows how to handle exceptions:

using System;
using ComponentPro.IO;
using ComponentPro.Net;

...

// Create a new Ftp instance.
Ftp client = new Ftp();

try
{
    // Connect to the FTP server. 
    client.Connect("myserver");

    // Authenticate. 
    client.Authenticate("userName", "password");

    // ... 
 
    // Create 'myFolder' folder. 
    client.CreateDirectory("/myFolder");

    // ... 
 
    // Disconnect. 
    client.Disconnect();
}
catch (FtpException exc)
{
    if (client.IsConnected)
    {
        client.Disconnect();
    }

    Console.WriteLine("An error occurred: " + exc.Message);
}

Imports ComponentPro.IO
Imports ComponentPro.Net

...

' Create a new Ftp instance. 
Dim client As New Ftp()

Try 
    ' Connect to the FTP server. 
    client.Connect("myserver")

    ' Authenticate. 
    client.Authenticate("userName", "password")

    ' ... 
 
    ' Create 'myFolder' folder. 
    client.CreateDirectory("/myFolder")

    ' ... 
 
    ' Disconnect. 
    client.Disconnect()
Catch exc As FtpException
    If client.IsConnected Then 
        client.Disconnect()
    End If 
 
    Console.WriteLine("An error occurred: " & exc.Message)
End Try