CompareAttribute 类

定义

提供用于比较两个属性的特性。Provides an attribute that compares two properties.

public ref class CompareAttribute : System::ComponentModel::DataAnnotations::ValidationAttribute
[System.AttributeUsage(System.AttributeTargets.Property, AllowMultiple=false)]
public class CompareAttribute : System.ComponentModel.DataAnnotations.ValidationAttribute
[<System.AttributeUsage(System.AttributeTargets.Property, AllowMultiple=false)>]
type CompareAttribute = class
    inherit ValidationAttribute
Public Class CompareAttribute
Inherits ValidationAttribute
继承
属性

构造函数

CompareAttribute(String)

初始化 CompareAttribute 类的新实例。Initializes a new instance of the CompareAttribute class.

属性

ErrorMessage

获取或设置一条在验证失败的情况下与验证控件关联的错误消息。Gets or sets an error message to associate with a validation control if validation fails.

(继承自 ValidationAttribute)
ErrorMessageResourceName

获取或设置错误消息资源的名称,在验证失败的情况下,要使用该名称来查找 ErrorMessageResourceType 属性值。Gets or sets the error message resource name to use in order to look up the ErrorMessageResourceType property value if validation fails.

(继承自 ValidationAttribute)
ErrorMessageResourceType

获取或设置在验证失败的情况下用于查找错误消息的资源类型。Gets or sets the resource type to use for error-message lookup if validation fails.

(继承自 ValidationAttribute)
ErrorMessageString

获取本地化的验证错误消息。Gets the localized validation error message.

(继承自 ValidationAttribute)
OtherProperty

获取要与当前属性进行比较的属性。Gets the property to compare with the current property.

OtherPropertyDisplayName

获取其他属性的显示名称。Gets the display name of the other property.

RequiresValidationContext

获取指示特性是否要求验证上下文的值。Gets a value that indicates whether the attribute requires validation context.

TypeId

在派生类中实现时,获取此 Attribute 的唯一标识符。When implemented in a derived class, gets a unique identifier for this Attribute.

(继承自 Attribute)

方法

Equals(Object)

返回一个值,该值指示此实例是否与指定的对象相等。Returns a value that indicates whether this instance is equal to a specified object.

(继承自 Attribute)
FormatErrorMessage(String)

基于发生错误的数据字段对错误消息应用格式设置。Applies formatting to an error message, based on the data field where the error occurred.

GetHashCode()

返回此实例的哈希代码。Returns the hash code for this instance.

(继承自 Attribute)
GetType()

获取当前实例的 TypeGets the Type of the current instance.

(继承自 Object)
GetValidationResult(Object, ValidationContext)

检查指定的值对于当前的验证特性是否有效。Checks whether the specified value is valid with respect to the current validation attribute.

(继承自 ValidationAttribute)
IsDefaultAttribute()

在派生类中重写时,指示此实例的值是否是派生类的默认值。When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.

(继承自 Attribute)
IsValid(Object)

确定对象的指定值是否有效。Determines whether the specified value of the object is valid.

(继承自 ValidationAttribute)
IsValid(Object, ValidationContext)

确定指定的对象是否有效。Determines whether a specified object is valid.

Match(Object)

当在派生类中重写时,返回一个指示此实例是否等于指定对象的值。When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.

(继承自 Attribute)
MemberwiseClone()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

(继承自 Object)
ToString()

返回表示当前对象的字符串。Returns a string that represents the current object.

(继承自 Object)
Validate(Object, String)

验证指定的对象。Validates the specified object.

(继承自 ValidationAttribute)
Validate(Object, ValidationContext)

验证指定的对象。Validates the specified object.

(继承自 ValidationAttribute)

显式接口实现

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

将一组名称映射为对应的一组调度标识符。Maps a set of names to a corresponding set of dispatch identifiers.

(继承自 Attribute)
_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)

检索对象的类型信息,然后可以使用该信息获取接口的类型信息。Retrieves the type information for an object, which can be used to get the type information for an interface.

(继承自 Attribute)
_Attribute.GetTypeInfoCount(UInt32)

检索对象提供的类型信息接口的数量(0 或 1)。Retrieves the number of type information interfaces that an object provides (either 0 or 1).

(继承自 Attribute)
_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

提供对某一对象公开的属性和方法的访问。Provides access to properties and methods exposed by an object.

(继承自 Attribute)

适用于