Cancel upload

The following example shows you how to cancel an upload, for example when the user presses a Cancel button.

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 upload = client.Upload("documents/budget.xlsx", "budget.xlsx", null, cancellation.Token);

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

                    try
                    {
                        await upload;
                        Console.WriteLine("Upload completed before it was canceled.");
                    }
                    catch (OperationCanceledException)
                    {
                        Console.WriteLine("Upload 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 upload As Task = client.Upload("documents/budget.xlsx", "budget.xlsx", Nothing, cancellation.Token)

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

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

WebDAV .NET > Tutorial > Cancel upload

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