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Validator.TryValidateObject Method (Object, ValidationContext, ICollection<ValidationResult>, Boolean)

Determines whether the specified object is valid using the validation context, validation results collection, and a value that specifies whether to validate all properties.

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

public static bool TryValidateObject(
	Object instance,
	ValidationContext validationContext,
	ICollection<ValidationResult> validationResults,
	bool validateAllProperties


Type: System.Object

The object to validate.

Type: System.ComponentModel.DataAnnotations.ValidationContext

The context that describes the object to validate.

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

A collection to hold each failed validation.

Type: System.Boolean

true to validate all properties; if false, only required attributes are validated..

Return Value

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


instance is null.

This method evaluates each ValidationAttribute instance that is attached to the object type. It also checks whether each property that is marked with RequiredAttribute is provided. It does not recursively validate the property values of the object.

.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.

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