Cancel download

The following example shows you how to cancel a download, for example when the user presses a Cancel button. The partly downloaded file is deleted.

C# example

using System;
using System.Net;
using System.Threading;
using System.Threading.Tasks;
using Independentsoft.Webdav;

namespace Sample
{
    class Program
    {
        static async Task Main(string[] args)
        {
            NetworkCredential credential = new NetworkCredential("username", "password");

            using (WebdavClient client = new WebdavClient(credential))
            {
                client.BaseAddress = new Uri("https://myserver/dav/");

                using (CancellationTokenSource cancellation = new CancellationTokenSource())
                {
                    Task download = client.Download("documents/report.pdf", "report.pdf", null, cancellation.Token);

                    // For example when the user presses Cancel.
                    cancellation.Cancel();

                    try
                    {
                        await download;
                        Console.WriteLine("Download completed before it was canceled.");
                    }
                    catch (OperationCanceledException)
                    {
                        Console.WriteLine("Download canceled.");
                    }
                }
            }
        }
    }
}

VB example

Imports System
Imports System.Net
Imports System.Threading
Imports System.Threading.Tasks
Imports Independentsoft.Webdav

Namespace Sample
    Module Program
        Sub Main(args As String())
            RunAsync().GetAwaiter().GetResult()
        End Sub

        Private Async Function RunAsync() As Task
            Dim credential As New NetworkCredential("username", "password")

            Using client As New WebdavClient(credential)
                client.BaseAddress = New Uri("https://myserver/dav/")

                Using cancellation As New CancellationTokenSource()
                    Dim download As Task = client.Download("documents/report.pdf", "report.pdf", Nothing, cancellation.Token)

                    ' For example when the user presses Cancel.
                    cancellation.Cancel()

                    Try
                        Await download
                        Console.WriteLine("Download completed before it was canceled.")
                    Catch e As OperationCanceledException
                        Console.WriteLine("Download canceled.")
                    End Try
                End Using
            End Using
        End Function
    End Module
End Namespace

WebDAV .NET > Tutorial > Cancel download

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