LengthAttribute.IsValid(Object) Method

Definition

Namespace:

System.ComponentModel.DataAnnotations

Assembly:

System.ComponentModel.Annotations.dll

Source:

LengthAttribute.cs

Determines whether a specified object is valid. (Overrides IsValid(Object))

public:
 override bool IsValid(System::Object ^ value);

public override bool IsValid (object? value);

override this.IsValid : obj -> bool

Public Overrides Function IsValid (value As Object) As Boolean

Parameters

value

Object

The object to validate.

Returns

Boolean

true if the value is null or its length is between the specified minimum length and maximum length, otherwise false

Exceptions

InvalidOperationException

MinimumLength is less than zero or MaximumLength is less than MinimumLength.

Remarks

This method returns true if the value is null. It is assumed the RequiredAttribute is used if the value may not be null.