RequiredAttribute Class
Silverlight
Specifies that a value must be provided for a property.
System.Object
System.Attribute
System.ComponentModel.DataAnnotations.ValidationAttribute
System.ComponentModel.DataAnnotations.RequiredAttribute
System.Attribute
System.ComponentModel.DataAnnotations.ValidationAttribute
System.ComponentModel.DataAnnotations.RequiredAttribute
Namespace: System.ComponentModel.DataAnnotations
Assembly: System.ComponentModel.DataAnnotations (in System.ComponentModel.DataAnnotations.dll)
The RequiredAttribute type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | AllowEmptyStrings | Gets or sets a value that indicates whether an empty string is allowed. |
![]() | ErrorMessage | Gets or sets the non-localizable error message to display when validation fails. (Inherited from ValidationAttribute.) |
![]() | ErrorMessageResourceName | Gets or sets the property name on the resource type that provides the localizable error message. (Inherited from ValidationAttribute.) |
![]() | ErrorMessageResourceType | Gets or sets the resource type that provides the localizable error message. (Inherited from ValidationAttribute.) |
![]() | ErrorMessageString | Gets the localized or non-localized error message. (Inherited from ValidationAttribute.) |
| Name | Description | |
|---|---|---|
![]() | Equals | Infrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.) |
![]() | Finalize | Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
![]() | FormatErrorMessage | Applies formatting to the error message. (Inherited from ValidationAttribute.) |
![]() | GetHashCode | Returns the hash code for this instance. (Inherited from Attribute.) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() | GetValidationResult | Determines whether the specified object is valid and returns an object that includes the results of the validation check. (Inherited from ValidationAttribute.) |
![]() | IsValid | Determines whether the specified object is valid. (Inherited from ValidationAttribute.) |
![]() | Match | When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.) |
![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() | ToString | Returns a string that represents the current object. (Inherited from Object.) |
![]() | Validate | Determines whether the specified object is valid and throws a ValidationException if the object is not valid. (Inherited from ValidationAttribute.) |
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
Community Additions
ADD
Show:
