GetSupportedChecksumTypes Method

public override FileChecksumType[] GetSupportedChecksumTypes()

Public Overrides Function GetSupportedChecksumTypes As FileChecksumType()

public:
  array<FileChecksumType> GetSupportedChecksumTypes(); override

Return Value

Shows how to use GetFileChecksum and CalculateLocalChecksum methods to get checksum returned from the server and calculate checksum of a local file.

using System;
using System.Collections.Generic;
using System.Text;
using ComponentPro.IO;
using ComponentPro.Net;

...

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

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

// Or you can specify the FTP port with 
// client.Connect("myserver", 21); 
 
// Authenticate.
client.Authenticate("userName", "password");

FileChecksumType[] supportedChecksumTypes = client.GetSupportedChecksumTypes();

if (supportedChecksumTypes.Length == 0)
{
    // Show error and exit. 
    Console.WriteLine("No checksum algorithm supported by the server.");
    client.Disconnect();
    return;
}
// Upload the file. 
const string remoteFile = "/my remote file.dat";
const string localFile = "my local file";

long transferred = client.UploadFile(localFile, remoteFile);
Console.WriteLine("Bytes transferred: " + transferred);

// Get remote checksum 
// Suppose the server support at least one algorithm. 
string remoteChecksum = client.GetFileChecksum(supportedChecksumTypes[0], remoteFile);
Console.WriteLine("Remote checksum: " + remoteChecksum);

// Get local checksum 
string localChecksum = DiskFileSystem.CalculateLocalChecksum(supportedChecksumTypes[0], localFile);
Console.WriteLine("Local checksum: " + localChecksum);

if (localChecksum == remoteChecksum)
{
    Console.WriteLine("File uploaded successfully. {0} checked.", supportedChecksumTypes[0]);
}
else
{
    Console.WriteLine("File uploaded successfully. {0} not matched.", supportedChecksumTypes[0]);
}

// Disconnect.
client.Disconnect();

Imports System.Text
Imports ComponentPro.IO
Imports ComponentPro.Net

...

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

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

' Or you can specify the FTP port with 
' client.Connect("myserver", 21); 
 
' Authenticate.
client.Authenticate("userName", "password")

Dim supportedChecksumTypes() As FileChecksumType = client.GetSupportedChecksumTypes()

If supportedChecksumTypes.Length = 0 Then 
    ' Show error and exit. 
    Console.WriteLine("No checksum algorithm supported by the server.")
    client.Disconnect()
    Return 
End If 
' Upload the file. 
Const remoteFile As String = "/my remote file.dat" 
Const localFile As String = "my local file" 
 
Dim transferred As Long = client.UploadFile(localFile, remoteFile)
Console.WriteLine("Bytes transferred: " & transferred)

' Get remote checksum 
' Suppose the server support at least one algorithm. 
Dim remoteChecksum As String = client.GetFileChecksum(supportedChecksumTypes(0), remoteFile)
Console.WriteLine("Remote checksum: " & remoteChecksum)

' Get local checksum 
Dim localChecksum As String = DiskFileSystem.CalculateLocalChecksum(supportedChecksumTypes(0), localFile)
Console.WriteLine("Local checksum: " & localChecksum)

If localChecksum = remoteChecksum Then 
    Console.WriteLine("File uploaded successfully. {0} checked.", supportedChecksumTypes(0))
Else 
    Console.WriteLine("File uploaded successfully. {0} not matched.", supportedChecksumTypes(0))
End If 
 
' Disconnect.
client.Disconnect()

Reference