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.

Exception Condition

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.

Universal Windows Platform
Available since 8
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Available since 3.0
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