MaxLengthAttribute Class

Specifies the maximum length of array or string data allowed in a property.

Inheritance Hierarchy

System.Object
  System.Attribute
    System.ComponentModel.DataAnnotations.ValidationAttribute
      System.ComponentModel.DataAnnotations.MaxLengthAttribute

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

Syntax

'Declaration
<AttributeUsageAttribute(AttributeTargets.Property Or AttributeTargets.Field Or AttributeTargets.Parameter, AllowMultiple := False)> _
Public Class MaxLengthAttribute _
    Inherits ValidationAttribute
'Usage
Dim instance As MaxLengthAttribute

[AttributeUsageAttribute(AttributeTargets.Property|AttributeTargets.Field|AttributeTargets.Parameter, AllowMultiple = false)]
public class MaxLengthAttribute : ValidationAttribute

[AttributeUsageAttribute(AttributeTargets::Property|AttributeTargets::Field|AttributeTargets::Parameter, AllowMultiple = false)]
public ref class MaxLengthAttribute : public ValidationAttribute

[<AttributeUsageAttribute(AttributeTargets.Property|AttributeTargets.Field|AttributeTargets.Parameter, AllowMultiple = false)>]
type MaxLengthAttribute =  
    class
        inherit ValidationAttribute
    end

public class MaxLengthAttribute extends ValidationAttribute

The MaxLengthAttribute type exposes the following members.

Constructors

	Name	Description
	MaxLengthAttribute()	Initializes a new instance of the MaxLengthAttribute class. The maximum allowable length supported by the database will be used.
	MaxLengthAttribute(Int32)	Initializes a new instance of the MaxLengthAttribute class.

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Properties

	Name	Description
	ErrorMessage	(Inherited from ValidationAttribute.)
	ErrorMessageResourceName	(Inherited from ValidationAttribute.)
	ErrorMessageResourceType	(Inherited from ValidationAttribute.)
	ErrorMessageString	(Inherited from ValidationAttribute.)
	Length	Gets the maximum allowable length of the array/string data.
	RequiresValidationContext	(Inherited from ValidationAttribute.)
	TypeId	(Inherited from Attribute.)

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Methods

	Name	Description
	Equals	(Inherited from Attribute.)
	Finalize	(Inherited from Object.)
	FormatErrorMessage	Applies formatting to a specified error message. (Overrides <see cref="M:System.ComponentModel.DataAnnotations.ValidationAttribute.FormatErrorMessage(System.String)" />) (Overrides ValidationAttribute.FormatErrorMessage(String).)
	GetHashCode	(Inherited from Attribute.)
	GetType	(Inherited from Object.)
	GetValidationResult	(Inherited from ValidationAttribute.)
	IsDefaultAttribute	(Inherited from Attribute.)
	IsValid(Object)	Determines whether a specified object is valid. (Overrides <see cref="M:System.ComponentModel.DataAnnotations.ValidationAttribute.IsValid(System.Object)" />) (Overrides ValidationAttribute.IsValid(Object).)
	IsValid(Object, ValidationContext)	(Inherited from ValidationAttribute.)
	Match	(Inherited from Attribute.)
	MemberwiseClone	(Inherited from Object.)
	ToString	(Inherited from Object.)
	Validate(Object, String)	(Inherited from ValidationAttribute.)
	Validate(Object, ValidationContext)	(Inherited from ValidationAttribute.)

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Explicit Interface Implementations

	Name	Description
	_Attribute.GetIDsOfNames	(Inherited from Attribute.)
	_Attribute.GetTypeInfo	(Inherited from Attribute.)
	_Attribute.GetTypeInfoCount	(Inherited from Attribute.)
	_Attribute.Invoke	(Inherited from Attribute.)

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Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

See Also

Reference

System.ComponentModel.DataAnnotations Namespace

Other Resources

Entity Framework 4.1

Data Developer Center