Hi Paul, Sure thing. I wouldn't mind being the beta tester for this framework. =) Feel free to contact me directly.
Thanks. On Thu, Oct 30, 2008 at 10:25 AM, Paul Stovell <[EMAIL PROTECTED]> wrote: > Hi Dimaz, > > I've been working on a release of a validation control for both WPF and > Silverlight. I wanted to build something that was more flexible than the out > of the box solution for WPF. Here's where it's headed: > > - *Validation providers* > Instead of forcing one model, you can implement an interface to create > your own "validation provider". Out of the box I wanted to support UI-level > rules (like WPF's ValidationRule) as well as IDataErrorInfo and the > Enterprise Library Validation Application Block. If you have your own > needs, > you can just implement an interface. > - *Validation triggers* > In WPF, validation is coupled to a binding, and in general validation > takes place when the target of the binding changes. In WPF, ValidationRules > kick in only after you've made a change to the UI control. IDataErrorInfo > kicks in as soon as the form loads. It's difficult to control both, and you > can't for example, make it pend all validation until the user hits "save". > In my control you can select from: validate automatically, validate > only after a control has had focus, or validate only after some sort of > explicit event (when they hit "save"), and it works for all providers. > - *Validation targets* > In WPF, validation is coupled to a particular binding, which makes it > hard to show the error elsewhere - for example, drawing a border not just > around the input control, but also around the label, or perhaps around a > pair of controls. In my control, you use an attached dependency property to > indicate "this control is interested in these errors", and they get shown > on > that control instead. > - *Validation visualizations* > An attached dependency property is set on your object, and if you > specify an "InvalidTemplate" for your control, in WPF it will create an > adorner to show your template, exactly like the inbuilt system in WPF. In > Silverlight, because there is no adorner, it will switch your template to > an > "Invalid" version of your control template. However, if you want to do > something really different, you can implement an interface to visualize > errors differently. > - *Extended error information* > Sometimes a message isn't good enough. You might like to provide a Help > link, or a localization identifier, or an extended message, or a custom > icon, or the idea of categories (error, warning, information, etc.). The > validation control makes no assumptions, so if you implement your own > IValidationProvider, you can raise custom validation error objects. > - *Summaries* > In WPF validation, you can't easily get a summary of all errors on a > Window. In my control, you can simply bind to a collection exposed by the > validation control, and visualize the errors any way you like. You could > create a template to visualize the error as a hyperlink, which when clicked > sets focus to the invalid control. > > All of the above are actually done. What's stopping me from releasing it > is: > > - I want to implement validation rollups, i.e., on a TabControl you > might want each tab heading to indicate how many errors there are on each > tab. > - I want to demonstrate how validation can be done async. I'm pretty > sure it can, I just haven't had time to prove it. > - I want to do a little more testing. > > If you'd like to beta test it for me, let me know :) > > Paul > > > > On Thu, Oct 30, 2008 at 9:25 AM, Dimaz Pramudya < > [EMAIL PROTECTED]> wrote: > >> Hi all, >> >> Do you know any good framework for doing control validation in >> Silverlight? >> Thanks. >> >> Regards, >> >> Dimaz Pramudya >> ------------------------------------------------------------------- >> OzSilverlight.com - to unsubscribe from this list, send a message back to >> the list with 'unsubscribe' as the subject. >> Powered by mailenable.com - List managed by www.readify.net > > > ------------------------------------------------------------------- > OzSilverlight.com - to unsubscribe from this list, send a message back to > the list with 'unsubscribe' as the subject. > Powered by mailenable.com - List managed by www.readify.net ------------------------------------------------------------------- OzSilverlight.com - to unsubscribe from this list, send a message back to the list with 'unsubscribe' as the subject. Powered by mailenable.com - List managed by www.readify.net
