Validator.TryValidateValue Method

Returns a value that indicates whether the specified value is valid with the specified attributes.

Namespace:  System.ComponentModel.DataAnnotations
Assembly:  System.ComponentModel.DataAnnotations (in System.ComponentModel.DataAnnotations.dll)

public static bool TryValidateValue(
	Object value,
	ValidationContext validationContext,
	ICollection<ValidationResult> validationResults,
	IEnumerable<ValidationAttribute> validationAttributes
)

Parameters

value
Type: System.Object

The value to validate.

validationContext
Type: System.ComponentModel.DataAnnotations.ValidationContext

The context that describes the object to validate.

validationResults
Type: System.Collections.Generic.ICollection<ValidationResult>

A collection to hold failed validations.

validationAttributes
Type: System.Collections.Generic.IEnumerable<ValidationAttribute>

The validation attributes.

Return Value

Type: System.Boolean
true if the object validates; otherwise, false.

This method tests each validation attribute in the validationAttributes parameter against the value parameter. If the validationResults parameter is not null, this method adds a ValidationResult object for each validation failure to the validation results collection. If the validationResults parameter is null, this method does not add a ValidationResult object to the collection. If a RequiredAttribute attribute is included in the validationAttributes parameter, the RequiredAttribute attribute is evaluated first.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Was this page helpful?
(1500 characters remaining)
Thank you for your feedback
Show:
© 2014 Microsoft