Show a ProgressBar While Processing on a Background Thread : BackgroundWorker « Windows Presentation Foundation « C# / CSharp Tutorial

Home
C# / CSharp Tutorial
1.Language Basics
2.Data Type
3.Operator
4.Statement
5.String
6.struct
7.Class
8.Operator Overload
9.delegate
10.Attribute
11.Data Structure
12.Assembly
13.Date Time
14.Development
15.File Directory Stream
16.Preprocessing Directives
17.Regular Expression
18.Generic
19.Reflection
20.Thread
21.I18N Internationalization
22.LINQ
23.GUI Windows Forms
24.Windows Presentation Foundation
25.Windows Communication Foundation
26.Workflow
27.2D
28.Design Patterns
29.Windows
30.XML
31.XML LINQ
32.ADO.Net
33.Network
34.Directory Services
35.Security
36.unsafe
C# / CSharp Tutorial » Windows Presentation Foundation » BackgroundWorker 




<Window x:Class="WpfApplication1.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="WPF" Height="100" Width="200">
    <StackPanel>
        <ProgressBar Name="progressBar" Margin="4"/>
        <Button Name="button" Click="button_Click">Start</Button>
    </StackPanel>
</Window>

//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;
        }
    }
}
WPF Show A Progress Bar While Processing On A Background Thread














24.152.BackgroundWorker
24.152.1.Execute a Method Asynchronously Using a Background Worker ThreadExecute a Method Asynchronously Using a Background Worker Thread
24.152.2.Track the Progress of a Background Worker ThreadTrack the Progress of a Background Worker Thread
24.152.3.Support the Cancellation of a Background Worker ThreadSupport the Cancellation of a Background Worker Thread
24.152.4.Create a Background Worker Thread in XAMLCreate a Background Worker Thread in XAML
24.152.5.Show a ProgressBar While Processing on a Background ThreadShow a ProgressBar While Processing on a Background Thread
24.152.6.Use BackgroundWorker to run task at backgroundUse BackgroundWorker to run task at background
24.152.7.A Cancellable ProgressBar While Processing on a Background ThreadA Cancellable ProgressBar While Processing on a Background Thread
24.152.8.Show a Continuous Progress Bar While Processing on a Background ThreadShow a Continuous Progress Bar While Processing on a Background Thread
24.152.9.Using a BackgroundWorker: progress changed and completedUsing a BackgroundWorker: progress changed and completed
24.152.10.Unblock Thread with BackgroundWorkerUnblock Thread with BackgroundWorker
java2s.com  | Contact Us | Privacy Policy
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.