ToolboxItemAttribute 类

定义

表示工具箱项的特性。Represents an attribute of a toolbox item.

public ref class ToolboxItemAttribute : Attribute
public class ToolboxItemAttribute : Attribute
[System.AttributeUsage(System.AttributeTargets.All)]
public class ToolboxItemAttribute : Attribute
type ToolboxItemAttribute = class
    inherit Attribute
Public Class ToolboxItemAttribute
Inherits Attribute
继承
ToolboxItemAttribute
属性

示例

下面的代码示例演示如何使用 ToolboxItem 类作为自定义工具箱项实现的基类的 ToolboxItemAttributeThe following code example demonstrates the use of ToolboxItemAttribute with the ToolboxItem class as a base class for a custom toolbox item implementation. 此代码示例是为 ToolboxItem 类提供的更大示例的一部分。This code example is part of a larger example provided for the ToolboxItem class.

[ToolboxItem(typeof(MyToolboxItem))]
public class UserControl1 : UserControl
<ToolboxItem(GetType(MyToolboxItem))> _
Public Class UserControl1
    Inherits UserControl

注解

ToolboxItemAttribute 类提供一种方法来为 ToolboxItem指定属性。The ToolboxItemAttribute class provides a way to specify an attribute for a ToolboxItem. 除了 Attribute 类提供的内容以外,此类对象还存储工具箱项的类型。In addition to what the Attribute class provides, this class of object stores the type of the toolbox item.

构造函数

ToolboxItemAttribute(Boolean)

初始化 ToolboxItemAttribute 类的新实例,并指定是否使用默认初始化值。Initializes a new instance of the ToolboxItemAttribute class and specifies whether to use default initialization values.

ToolboxItemAttribute(String)

使用指定的类型名称初始化 ToolboxItemAttribute 类的新实例。Initializes a new instance of the ToolboxItemAttribute class using the specified name of the type.

ToolboxItemAttribute(Type)

使用工具箱项的指定类型初始化 ToolboxItemAttribute 类的新实例。Initializes a new instance of the ToolboxItemAttribute class using the specified type of the toolbox item.

字段

Default

初始化 ToolboxItemAttribute 类的新实例并将类型设置为默认值 ToolboxItemInitializes a new instance of the ToolboxItemAttribute class and sets the type to the default, ToolboxItem. 此字段为只读。This field is read-only.

None

初始化 ToolboxItemAttribute 类的新实例并将类型设置为 nullInitializes a new instance of the ToolboxItemAttribute class and sets the type to null. 此字段为只读。This field is read-only.

属性

ToolboxItemType

获取或设置工具箱项的类型。Gets or sets the type of the toolbox item.

ToolboxItemTypeName

获取或设置当前 ToolboxItem 的类型名称。Gets or sets the name of the type of the current ToolboxItem.

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.

GetHashCode()

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

GetType()

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

(继承自 Object)
IsDefaultAttribute()

获取一个值,该值指示该特性的当前值是否为该特性的默认值。Gets a value indicating whether the current value of the attribute is the default value for the attribute.

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()

返回一个表示当前对象的 string。Returns a string that represents the current object.

(继承自 Object)

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

另请参阅