DesignTimeVisibleAttribute 类

定义

DesignTimeVisibleAttribute 标记组件的可见性。DesignTimeVisibleAttribute marks a component's visibility. 如果存在 Yes,可视化设计器即可在设计器上显示该组件。If Yes is present, a visual designer can show this component on a designer.

public ref class DesignTimeVisibleAttribute sealed : Attribute
[System.AttributeUsage(System.AttributeTargets.Class | System.AttributeTargets.Interface)]
public sealed class DesignTimeVisibleAttribute : Attribute
type DesignTimeVisibleAttribute = class
    inherit Attribute
Public NotInheritable Class DesignTimeVisibleAttribute
Inherits Attribute
继承
DesignTimeVisibleAttribute
属性

注解

DesignTimeVisibleAttribute 是设计器的提示。The DesignTimeVisibleAttribute is a hint to the Designer. 设计器将为具有 UI 状态的组件忽略此特性。The Designer will ignore this attribute for components that have a UI presence. 它只能应用于类。It can only be applied to classes.

如果有接受子组件的控件,则 DesignTimeVisibleAttribute 最有用。The DesignTimeVisibleAttribute is most useful when you have a control that accepts child components. 例如,System.Windows.Forms.TreeView 控件的节点项不应出现在组件栏中,因为它们是由 System.Windows.Forms.TreeView 控件绘制的。For example, the System.Windows.Forms.TreeView control's node items should not appear in the component tray because they are drawn by the System.Windows.Forms.TreeView control.

构造函数

DesignTimeVisibleAttribute()

新建一个默认值设置为 DesignTimeVisibleAttributefalseCreates a new DesignTimeVisibleAttribute set to the default value of false.

DesignTimeVisibleAttribute(Boolean)

创建新的 DesignTimeVisibleAttribute,并将 Visible 属性设为 visible 中的给定值。Creates a new DesignTimeVisibleAttribute with the Visible property set to the given value in visible.

字段

Default

默认可见性是 YesThe default visibility which is Yes.

No

将组件标记为在可视化设计器中不可见。Marks a component as not visible in a visual designer.

Yes

将组件标记为在可视化设计器中可见。Marks a component as visible in a visual designer.

属性

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)
Visible

获取或设置该组件是否应在设计时显示。Gets or sets whether the component should be shown at design time.

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,该值指示此实例是否与 Default 值相等。Gets a value indicating if this instance is equal to the Default value.

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)

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