ValidationAttribute ValidationAttribute ValidationAttribute ValidationAttribute Class

Definition

Serves as the base class for all validation attributes.

public ref class ValidationAttribute abstract : Attribute
public abstract class ValidationAttribute : Attribute
type ValidationAttribute = class
    inherit Attribute
Public MustInherit Class ValidationAttribute
Inherits Attribute
Inheritance
ValidationAttributeValidationAttributeValidationAttributeValidationAttribute
Derived

Remarks

This class enforces validation, based on the metadata that is associated with the data table. You can override this class to create custom validation attributes.

Constructors

ValidationAttribute() ValidationAttribute() ValidationAttribute() ValidationAttribute()

Initializes a new instance of the ValidationAttribute class.

ValidationAttribute(Func<String>) ValidationAttribute(Func<String>) ValidationAttribute(Func<String>) ValidationAttribute(Func<String>)

Initializes a new instance of the ValidationAttribute class by using the function that enables access to validation resources.

ValidationAttribute(String) ValidationAttribute(String) ValidationAttribute(String) ValidationAttribute(String)

Initializes a new instance of the ValidationAttribute class by using the error message to associate with a validation control.

Properties

ErrorMessage ErrorMessage ErrorMessage ErrorMessage

Gets or sets an error message to associate with a validation control if validation fails.

ErrorMessageResourceName ErrorMessageResourceName ErrorMessageResourceName ErrorMessageResourceName

Gets or sets the error message resource name to use in order to look up the ErrorMessageResourceType property value if validation fails.

ErrorMessageResourceType ErrorMessageResourceType ErrorMessageResourceType ErrorMessageResourceType

Gets or sets the resource type to use for error-message lookup if validation fails.

ErrorMessageString ErrorMessageString ErrorMessageString ErrorMessageString

Gets the localized validation error message.

RequiresValidationContext RequiresValidationContext RequiresValidationContext RequiresValidationContext

Gets a value that indicates whether the attribute requires validation context.

TypeId TypeId TypeId TypeId

When implemented in a derived class, gets a unique identifier for this Attribute.

(Inherited from Attribute)

Methods

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Returns a value that indicates whether this instance is equal to a specified object.

(Inherited from Attribute)
FormatErrorMessage(String) FormatErrorMessage(String) FormatErrorMessage(String) FormatErrorMessage(String)

Applies formatting to an error message, based on the data field where the error occurred.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Returns the hash code for this instance.

(Inherited from Attribute)
GetType() GetType() GetType() GetType()

Gets the Type of the current instance.

(Inherited from Object)
GetValidationResult(Object, ValidationContext) GetValidationResult(Object, ValidationContext) GetValidationResult(Object, ValidationContext) GetValidationResult(Object, ValidationContext)

Checks whether the specified value is valid with respect to the current validation attribute.

IsDefaultAttribute() IsDefaultAttribute() IsDefaultAttribute() IsDefaultAttribute()

When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.

(Inherited from Attribute)
IsValid(Object) IsValid(Object) IsValid(Object) IsValid(Object)

Determines whether the specified value of the object is valid.

IsValid(Object, ValidationContext) IsValid(Object, ValidationContext) IsValid(Object, ValidationContext) IsValid(Object, ValidationContext)

Validates the specified value with respect to the current validation attribute.

Match(Object) Match(Object) Match(Object) Match(Object)

When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.

(Inherited from Attribute)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

Returns a string that represents the current object.

(Inherited from Object)
Validate(Object, String) Validate(Object, String) Validate(Object, String) Validate(Object, String)

Validates the specified object.

Validate(Object, ValidationContext) Validate(Object, ValidationContext) Validate(Object, ValidationContext) Validate(Object, ValidationContext)

Validates the specified object.

Explicit Interface Implementations

_Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)

Maps a set of names to a corresponding set of dispatch identifiers.

(Inherited from Attribute)
_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)

Retrieves the type information for an object, which can be used to get the type information for an interface.

(Inherited from Attribute)
_Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32)

Retrieves the number of type information interfaces that an object provides (either 0 or 1).

(Inherited from Attribute)
_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

Provides access to properties and methods exposed by an object.

(Inherited from Attribute)

Applies to

See Also