Vb .net File Download With Progress !!hot!! Jun 2026

End Class

Public Sub Cancel() _cts?.Cancel() End Sub

' Call our custom download method Await DownloadFileWithProgressAsync(txtUrl.Text, txtPath.Text, progressReporter, cts.Token)

Add a handler for DownloadFileCompleted to notify the user when the task is finished.

' Get the total file size (if the

To track progress, we use the System.IProgress(Of T) interface. This allows the background download task to send updates back to the UI thread without causing "Cross-thread operation not valid" errors. Step 1: Designing the User Interface