Validation

How to: Customize Data Field Validation in the Data Model Using Custom Attributes

ValidationAttribute Class

The System.ComponentModel.DataAnnotations namespace includes the following validator attributes:

• Range – Enables you to validate whether the value of a property falls between a specified range of values.
• RegularExpression – Enables you to validate whether the value of a property matches a specified regular expression pattern.
• Required – Enables you to mark a property as required.
• StringLength – Enables you to specify a maximum length for a string property.
• Validation – The base class for all validator attributes.

System.ComponentModel.DataAnnotations Namespace

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