PopupEventArgs PopupEventArgs PopupEventArgs PopupEventArgs Class

定义

Popup 事件提供数据。Provides data for the Popup event.

public ref class PopupEventArgs : System::ComponentModel::CancelEventArgs
public class PopupEventArgs : System.ComponentModel.CancelEventArgs
type PopupEventArgs = class
    inherit CancelEventArgs
Public Class PopupEventArgs
Inherits CancelEventArgs
继承

示例

下面的代码示例演示如何使用此类型。The following code example demonstrates the use of this type. 在此示例中, 事件处理程序报告Popup事件的发生。In the example, an event handler reports on the occurrence of the Popup event. 此报表可帮助你了解何时发生事件, 并可帮助你进行调试。This report helps you to learn when the event occurs and can assist you in debugging. 若要报告多个事件或频繁发生的事件, 请考虑ShowConsole.WriteLine消息替换为多行或将TextBox其追加到多行。To report on multiple events or on events that occur frequently, consider replacing Show with Console.WriteLine or appending the message to a multiline TextBox.

若要运行示例代码, 请将其粘贴到包含名为ToolTip ToolTip1的类型的实例的项目中。To run the example code, paste it into a project that contains an instance of type ToolTip named ToolTip1. 然后, 确保事件处理程序与Popup事件相关联。Then ensure that the event handler is associated with the Popup event.

private void ToolTip1_Popup(Object sender, PopupEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "AssociatedWindow", e.AssociatedWindow );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "AssociatedControl", e.AssociatedControl );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "IsBalloon", e.IsBalloon );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "ToolTipSize", e.ToolTipSize );
messageBoxCS.AppendLine();
messageBoxCS.AppendFormat("{0} = {1}", "Cancel", e.Cancel );
messageBoxCS.AppendLine();
MessageBox.Show(messageBoxCS.ToString(), "Popup Event" );
}
Private Sub ToolTip1_Popup(sender as Object, e as PopupEventArgs) _ 
     Handles ToolTip1.Popup

    Dim messageBoxVB as New System.Text.StringBuilder()
    messageBoxVB.AppendFormat("{0} = {1}", "AssociatedWindow", e.AssociatedWindow)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "AssociatedControl", e.AssociatedControl)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "IsBalloon", e.IsBalloon)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "ToolTipSize", e.ToolTipSize)
    messageBoxVB.AppendLine()
    messageBoxVB.AppendFormat("{0} = {1}", "Cancel", e.Cancel)
    messageBoxVB.AppendLine()
    MessageBox.Show(messageBoxVB.ToString(),"Popup Event")

End Sub

注解

在显示工具提示ToolTip之前引发类的事件。PopupThe Popup event of the ToolTip class is raised before a ToolTip is displayed. 此事件的处理程序接收类型PopupEventArgs为的参数。The handler for this event receives a parameter of type PopupEventArgs. 此参数提供有关工具提示的信息, 并使你能够通过ToolTipSize属性修改工具提示的大小。This parameter provides information about the ToolTip and enables you to modify the size of the ToolTip through the ToolTipSize property. 由于Popup派生自CancelEventArgs, 因此处理程序还可以阻止显示工具提示。Because Popup derives from CancelEventArgs, the handler can also stop the ToolTip from being displayed.

构造函数

PopupEventArgs(IWin32Window, Control, Boolean, Size) PopupEventArgs(IWin32Window, Control, Boolean, Size) PopupEventArgs(IWin32Window, Control, Boolean, Size) PopupEventArgs(IWin32Window, Control, Boolean, Size)

初始化 PopupEventArgs 类的实例。Initializes an instance of the PopupEventArgs class.

属性

AssociatedControl AssociatedControl AssociatedControl AssociatedControl

获取要为其绘制 ToolTip 的控件。Gets the control for which the ToolTip is being drawn.

AssociatedWindow AssociatedWindow AssociatedWindow AssociatedWindow

获取此 ToolTip 要绑定到的窗口。Gets the window to which this ToolTip is bound.

Cancel Cancel Cancel Cancel

获取或设置指示是否应取消事件的值。Gets or sets a value indicating whether the event should be canceled.

(Inherited from CancelEventArgs)
IsBalloon IsBalloon IsBalloon IsBalloon

获取一个值,该值指示工具提示显示为标准矩形窗口还是气球状窗口。Gets a value indicating whether the ToolTip is displayed as a standard rectangular or a balloon window.

ToolTipSize ToolTipSize ToolTipSize ToolTipSize

获取或设置工具提示的大小。Gets or sets the size of the ToolTip.

方法

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

确定指定的对象是否等于当前对象。Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

作为默认哈希函数。Serves as the default hash function.

(Inherited from Object)
GetType() GetType() GetType() GetType()

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

(Inherited from Object)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

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

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

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

(Inherited from Object)

适用于

另请参阅