8/6/2019 WPF and Threading

1/15

WPFLets Tech @ NTU 2011

by

1

8/6/2019 WPF and Threading

2/15

WPF

Windows Presentation Foundation (or WPF) is a

computer-software graphical subsystem for

rendering user interfaces in Windows-based

applications (Wikipedia).

Windows Presentation Foundation (WPF) is a

next-generation presentation system for

building Windows client applications withvisually stunning user experiences. With WPF,

you can create a wide range of both standalone

and browser-hosted applications (Microsoft).

2

8/6/2019 WPF and Threading

3/15

Silverlight Showcase

Official Site

http://www.silverlight.net/showcase/

btyazilim http://www.btyazilim.com.tr/

Microsoft Academic Seaerch

http://academic.research.microsoft.com/VisualExplorer.aspx#63591

3

http://www.silverlight.net/showcase/http://www.btyazilim.com.tr/http://academic.research.microsoft.com/VisualExplorer.aspxhttp://academic.research.microsoft.com/VisualExplorer.aspxhttp://academic.research.microsoft.com/VisualExplorer.aspxhttp://academic.research.microsoft.com/VisualExplorer.aspxhttp://www.btyazilim.com.tr/http://www.silverlight.net/showcase/

8/6/2019 WPF and Threading

4/15

Winform vs. WPF

Winform

(

4

8/6/2019 WPF and Threading

5/15

Winform vs. WPF

WPF

Silverlight

Databinding

5

8/6/2019 WPF and Threading

6/15

Winform vs. WPF

*

DreamSpark (All NTU Students) MSDNAA (All SCE Students)

6

8/6/2019 WPF and Threading

7/15

Thread

1

1

2

3

4

7

8/6/2019 WPF and Threading

8/15

Web-based

One thread per request

Handled by sever-side software

Apache HTTP server

Internet Information Services (IIS)

Apache Tomcat Console-based

8

8/6/2019 WPF and Threading

9/15

GUI

Web server

9

8/6/2019 WPF and Threading

10/15

.NET Framework

1. Thread t = new Thread(delegate() { foo(); });

2. ThreadPool.QueueUserWorkItem((WaitCallback)delegate(object s) { foo(); });

3. Dispatcher.BeginInvoke((Action)delegate() {foo(); });

4. Dispatcher.Invoke((Action)delegate() {

foo();});5.

*delegation()

10

8/6/2019 WPF and Threading

11/15

Thread t = new

Concurrent programming Synchronization

Deadlock

Debug

Support

11

8/6/2019 WPF and Threading

12/15

.NET Framework

ThreadPool

Dispatcher

BackgroundWorker

.NET

Framework

Background Thread

12

8/6/2019 WPF and Threading

13/15

Lets CODE!

Quick WPF Project Demo

XMAL Drag and drop

Writing markup

Events handling

Threading demo, the Bad

Threading demo, the Good

13

8/6/2019 WPF and Threading

14/15

Q & A

14

8/6/2019 WPF and Threading

15/15

Reference

Windows Presentation Foundation http://msdn.microsoft.com/en-us/library/ms754130.aspx

WPF Architecture http://msdn.microsoft.com/en-us/library/ms750441.aspx

WPF Threading Model

http://msdn.microsoft.com/en-us/library/ms741870.aspx Build More Responsive Apps With The Dispatcher

http://msdn.microsoft.com/en-us/magazine/cc163328.aspx

Generic BackgroundWorker implementation in C# http://osherove.com/blog/2004/6/16/backgroundworker-implementation-in-c.html

Why Threads Are A Bad Idea

http://www.cs.sfu.ca/~vaughan/teaching/431/papers/ousterhout-threads-usenix96.pdf Simple WPF Progress Window with Cancellation

http://blog.quantumbitdesigns.com/2008/07/22/simple-wpf-progress-window-with-cancellation/

They are Anonymous Methods, not Anonymous Delegates http://staceyw1.wordpress.com/2007/12/22/they-are-anonymous-methods-not-

anonymous-delegates/

15

http://msdn.microsoft.com/en-us/library/ms754130.aspxhttp://msdn.microsoft.com/en-us/library/ms750441.aspxhttp://msdn.microsoft.com/en-us/library/ms741870.aspxhttp://msdn.microsoft.com/en-us/magazine/cc163328.aspxhttp://osherove.com/blog/2004/6/16/backgroundworker-implementation-in-c.htmlhttp://www.cs.sfu.ca/~vaughan/teaching/431/papers/ousterhout-threads-usenix96.pdfhttp://blog.quantumbitdesigns.com/2008/07/22/simple-wpf-progress-window-with-cancellation/http://blog.quantumbitdesigns.com/2008/07/22/simple-wpf-progress-window-with-cancellation/http://staceyw1.wordpress.com/2007/12/22/they-are-anonymous-methods-not-anonymous-delegates/http://staceyw1.wordpress.com/2007/12/22/they-are-anonymous-methods-not-anonymous-delegates/http://staceyw1.wordpress.com/2007/12/22/they-are-anonymous-methods-not-anonymous-delegates/http://staceyw1.wordpress.com/2007/12/22/they-are-anonymous-methods-not-anonymous-delegates/http://blog.quantumbitdesigns.com/2008/07/22/simple-wpf-progress-window-with-cancellation/http://blog.quantumbitdesigns.com/2008/07/22/simple-wpf-progress-window-with-cancellation/http://www.cs.sfu.ca/~vaughan/teaching/431/papers/ousterhout-threads-usenix96.pdfhttp://osherove.com/blog/2004/6/16/backgroundworker-implementation-in-c.htmlhttp://msdn.microsoft.com/en-us/magazine/cc163328.aspxhttp://msdn.microsoft.com/en-us/library/ms741870.aspxhttp://msdn.microsoft.com/en-us/library/ms750441.aspxhttp://msdn.microsoft.com/en-us/library/ms754130.aspx