Improved compiletime supported validators

After a the initial post on the compile-time supporting webform validators, a few itches started to surface. Mainly the extendability and cleanliness. With some slight changes it was possible to categorize the validators (thus enforcing more of the Single Responsibility Principle).

Usage

The following code demonstrates the usage of this API. Note that there are breaking changes if you are replacing the previous version.

protected override void OnInit(EventArgs e)
{
    base.OnInit(e);

    this.UsernameField.Validation().RequiredField("username");
    this.PasswordField.Validation().RequiredField("password");
}

Read the original post for implementation details.

ASP.NET Compile Time Supported Validators

UPDATED VERSION

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With.NET 3.5 extension methods were introduced, these methods provide a great way built features into 'closed' objects or doing a way of IOC.

Either way, the following example shows the usages a 'simple' validation framework. It provides extensions to validate web controls with compile time support. Which is quiet nice if don't have to write any markup code anymore.