Handling Exceptions

Exceptions thrown by the component and its dependencies can be easily 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.Net;
using ComponentPro.Net.Terminal;

...

// Create an SshClient object.
SshClient client = new SshClient();

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

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

    client.Timeout = 25000;

    // Create a shell object in auto-processing mode. 
    TerminalShell shell = client.CreateShell(true);

    while (shell.IsConnected)
    {
        Console.Write("Command: ");

        // Read the command to execute. 
        string command = Console.ReadLine();

        // Send the command to the SSH server. 
        shell.SendCommand(command);

        // You can do something here. 
        // ... 
        
        // Get the response of the command. 
        string response = shell.ReadToEnd();

        // Print out the response. 
        Console.Write(response);
    }
}
catch (SecureShellException se)
{
    Console.WriteLine("\nAn SSH exception occurred: {0}", se.Message);
}
catch (TerminalException te)
{
    Console.WriteLine("\nA terminal exception occurred: {0}", te.Message);
}
finally
{
    // Close the connection. 
    client.Disconnect();
}

Imports ComponentPro.Net
Imports ComponentPro.Net.Terminal

...

' Create an SshClient object. 
Dim client As New SshClient()

Try 
    ' Connect to the specified server. 
    client.Connect("server")

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

    client.Timeout = 25000

    ' Create a shell object in auto-processing mode. 
    Dim shell As TerminalShell = client.CreateShell(True)

    Do While shell.IsConnected
        Console.Write("Command: ")

        ' Read the command to execute. 
        Dim command As String = Console.ReadLine()

        ' Send the command to the SSH server. 
        shell.SendCommand(command)

        ' You can do something here. 
        ' ... 
 
        ' Get the response of the command. 
        Dim response As String = shell.ReadToEnd()

        ' Print out the response. 
        Console.Write(response)
    Loop 
Catch se As SecureShellException
    Console.WriteLine(vbLf & "An SSH exception occurred: {0}", se.Message)
Catch te As TerminalException
    Console.WriteLine(vbLf & "A terminal exception occurred: {0}", te.Message)
Finally 
    ' Close the connection. 
    client.Disconnect()
End Try