Show a ProgressBar While Processing on a Background Thread

image_pdfimage_print






//File:Window.xaml.cs
using System.ComponentModel;
using System.Threading;
using System.Windows;
using System.Windows.Input;

namespace WpfApplication1
{
public partial class Window1 : Window
{
private BackgroundWorker worker = new BackgroundWorker();

public Window1()
{
InitializeComponent();
worker.WorkerReportsProgress = true;
worker.DoWork += new DoWorkEventHandler(worker_DoWork);
worker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(worker_RunWorkerCompleted);
worker.ProgressChanged += worker_ProgressChanged;
}

private void button_Click(object sender, RoutedEventArgs e)
{
worker.RunWorkerAsync();
this.Cursor = Cursors.Wait;
button.IsEnabled = false;
}

private void worker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
this.Cursor = Cursors.Arrow;
if(e.Error != null)
MessageBox.Show(e.Error.Message);
button.IsEnabled = true;
}
private void worker_DoWork(object sender, DoWorkEventArgs e)
{
for(int i = 1; i <= 100; i++) { Thread.Sleep(100); worker.ReportProgress(i); } } private void worker_ProgressChanged(object sender, ProgressChangedEventArgs e) { progressBar.Value = e.ProgressPercentage; } } } [/csharp]