Rajmund Rzepecki

VALIDATION SCENARIOS IN SILVERLIGHT 4

University of Southern California, Los AngelesOctober 24th, 2010

Version 1.1

First, how binding works in WPF/SL?

Can we define our own invalid states?

Controls supporting validation states

How all this communicates?

Sequence diagram for the whole cycle

Alexander Junghttp://ajdotnet.wordpress.com/2010/02/28/understanding-validation-in-silverlight/

Demo and examples

It is totally hands on from now on. We are going to deepdive into code.

I have studied and selected the finest examples fromthe web discussing validation issues and solutions for them.

Don’t worry about remembering or taking notes,I will give you links to all topics presented at the end.

Remember, most principles also apply to WPF.

Useful links Silverlight Validation in Detailhttp://silverlightfeeds.com/post/571/Silverlight_Validation_in_Detail.aspx

Data Validation in Silverlight 4http://www.packtpub.com/article/data-validation-in-silverlight-4

Silverlight 4 Rough Notes: Binding and IDataErrorInfohttp://mtaulty.com/CommunityServer/blogs/mike_taultys_blog/archive/2009/11/18/silverlight-4-rough-notes-binding-and-idataerrorinfo.aspx

Silverlight 4 Rough Notes: Binding with INotifyDataErrorInfohttp://mtaulty.com/CommunityServer/blogs/mike_taultys_blog/archive/2009/11/18/silverlight-4-rough-notes-binding-with-inotifydataerrorinfo.aspx

Silverlight 4 and Asynchronous Validation with INotifyDataErrorInfo

http://weblogs.asp.net/fredriknormen/archive/2009/11/22/silverlight-4-and-asynchronous-validation-with-inotifydataerrorinfo.aspx

Useful links (more) Understanding Validation in Silverlighthttp://ajdotnet.wordpress.com/2010/02/28/understanding-validation-in-silverlight/

Silverlight Data Validationhttp://www.devproconnections.com/article/silverlight-development/Silverlight-Data-Validation.aspx

Validation Summary In Silverlight 3http://dpatra.blogspot.com/2010/04/validation-summary-in-silverlight-3.html

How to manually validate an object and have the results automatically added to a ValidationSummary?

http://forums.silverlight.net/forums/t/111830.aspx

Silverlight 4 : Data Validation - Tip of the Day - Part 1http://www.codeproject.com/Articles/86955/Silverlight-4-Data-Validation-Tip-of-the-Day-Part-.aspx

Useful links (even more) Silverlight 3 Validation Workaroundhttp://blog.andrew-veresov.com/post/Silverlight-3-Validation-Workaround.aspx

Silverlight – About validation when binding to custom forms http://weblogs.asp.net/fredriknormen/archive/2010/01/06/silverlight-about-validation-when-binding-to-custom-forms.aspx

Force Validation checks on Clickhttp://forums.silverlight.net/forums/p/158594/355142.aspx

Silverlight 3: Programmatically Validate Textboxhttp://dotnetstep.blogspot.com/2010/01/silverlight-3-programmatically-validate.html

Silverlight, MVVM and Validation (Part I-III)http://www.thejoyofcode.com/Silverlight_Validation_and_ViewModel.aspxhttp://www.thejoyofcode.com/Silverlight_Validation_and_MVVM_Part_II.aspxhttp://www.thejoyofcode.com/Silverlight_MVVM_and_Validation_Part_III.aspx

Useful links – INotifyDataErrorInfoEnabling Validation in Silverlight 4 with

IDataErrorInfohttp://johnpapa.net/silverlight/enabling-validation-in-silverlight-4-with-idataerrorinfo/

Implementing Data Validation in Silverlight with INotifyDataErrorInfo

http://www.silverlight.net/learn/whitepapers/introducing-new-inotifydataerrorinfo-interface

Silverlight 4 INotifyDataErrorInfohttp://attachedwpf.com/blog/2010/03/24/silverlight-4-inotifydataerrorinfo

Questions?Thanks for coming.

Please download from:

http://www.slideshare.net/rajmundr/validation-scenarios-in-silverlight-4