Validator.TryValidateValue Method

Reference

Definition

Namespace:: System.ComponentModel.DataAnnotations

Assembly:: System.ComponentModel.Annotations.dll

Assemblies:: System.ComponentModel.Annotations.dll, System.ComponentModel.DataAnnotations.dll

Assembly:: System.ComponentModel.DataAnnotations.dll

Package:: System.ComponentModel.Annotations v5.0.0

Source:: Validator.cs

Source:: Validator.cs

Source:: Validator.cs

Important

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

public:
 static bool TryValidateValue(System::Object ^ value, System::ComponentModel::DataAnnotations::ValidationContext ^ validationContext, System::Collections::Generic::ICollection<System::ComponentModel::DataAnnotations::ValidationResult ^> ^ validationResults, System::Collections::Generic::IEnumerable<System::ComponentModel::DataAnnotations::ValidationAttribute ^> ^ validationAttributes);

public static bool TryValidateValue (object value, System.ComponentModel.DataAnnotations.ValidationContext validationContext, System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult> validationResults, System.Collections.Generic.IEnumerable<System.ComponentModel.DataAnnotations.ValidationAttribute> validationAttributes);

public static bool TryValidateValue (object value, System.ComponentModel.DataAnnotations.ValidationContext validationContext, System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult>? validationResults, System.Collections.Generic.IEnumerable<System.ComponentModel.DataAnnotations.ValidationAttribute> validationAttributes);

public static bool TryValidateValue (object? value, System.ComponentModel.DataAnnotations.ValidationContext validationContext, System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult>? validationResults, System.Collections.Generic.IEnumerable<System.ComponentModel.DataAnnotations.ValidationAttribute> validationAttributes);

static member TryValidateValue : obj * System.ComponentModel.DataAnnotations.ValidationContext * System.Collections.Generic.ICollection<System.ComponentModel.DataAnnotations.ValidationResult> * seq<System.ComponentModel.DataAnnotations.ValidationAttribute> -> bool

Public Shared Function TryValidateValue (value As Object, validationContext As ValidationContext, validationResults As ICollection(Of ValidationResult), validationAttributes As IEnumerable(Of ValidationAttribute)) As Boolean

Parameters

value: Object

The value to validate.

validationContext: ValidationContext

The context that describes the object to validate.

validationResults: ICollection<ValidationResult>

A collection to hold failed validations.

validationAttributes: IEnumerable<ValidationAttribute>

The validation attributes.

Returns

Boolean

true if the object validates; otherwise, false.

Remarks

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.

Applies to

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