Validating in asp net who is doc shaw dating

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Only one interface (the least sophisticated) functions in all of them.

First I create a List that I can add error messages to.NET MVC applications -- and can be easily extended to other environments. NET Framework is designed to support creating components: business objects that not only carry their business logic with them from one environment to another, but also carry some additional "meta code" that can be used to drive the presentation layer of whatever application they're being used in.Ideally, UI developers just wire your components up to their UIs, and those UIs will do the right thing. NET Framework contains three interfaces you can leverage to have the validation errors generated by logic in your components automatically integrated into an application's UI.Code like this does the trick: Integrating with the UITo use your self-validating component in WPF or Silverlight, a UI developer will typically bind your component's properties to a control such as a Text Box using two-way binding to support updating the property from the UI.The developer will also set the binding's Update Source Trigger property to some event to control when the property is updated (for a Text Box, I typically use the Lost Focus event so that I don't validate on each of the user's keystrokes).

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