ToolStripDropDownClosedEventArgs ToolStripDropDownClosedEventArgs ToolStripDropDownClosedEventArgs ToolStripDropDownClosedEventArgs Class


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

public ref class ToolStripDropDownClosedEventArgs : EventArgs
public class ToolStripDropDownClosedEventArgs : EventArgs
type ToolStripDropDownClosedEventArgs = class
    inherit EventArgs
Public Class ToolStripDropDownClosedEventArgs
Inherits EventArgs


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Closed事件的发生。In the example, an event handler reports on the occurrence of the Closed 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ToolStripDropDown ToolStripDropDown1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 ToolStripDropDown named ToolStripDropDown1. 然后, 确保事件处理程序与Closed事件相关联。Then ensure that the event handler is associated with the Closed event.

private void ToolStripDropDown1_Closed(Object sender, ToolStripDropDownClosedEventArgs e) {

System.Text.StringBuilder messageBoxCS = new System.Text.StringBuilder();
messageBoxCS.AppendFormat("{0} = {1}", "CloseReason", e.CloseReason );
MessageBox.Show(messageBoxCS.ToString(), "Closed Event" );
Private Sub ToolStripDropDown1_Closed(sender as Object, e as ToolStripDropDownClosedEventArgs) _ 
     Handles ToolStripDropDown1.Closed

    Dim messageBoxVB as New System.Text.StringBuilder()
    messageBoxVB.AppendFormat("{0} = {1}", "CloseReason", e.CloseReason)
    MessageBox.Show(messageBoxVB.ToString(),"Closed Event")

End Sub


使用方法中的ToolStripDropDownClosedEventArgs数据来决定下拉控件关闭时要执行的操作。Use data from the ToolStripDropDownClosedEventArgs method to make decisions about actions to take when a drop-down control closes.


ToolStripDropDownClosedEventArgs(ToolStripDropDownCloseReason) ToolStripDropDownClosedEventArgs(ToolStripDropDownCloseReason) ToolStripDropDownClosedEventArgs(ToolStripDropDownCloseReason) ToolStripDropDownClosedEventArgs(ToolStripDropDownCloseReason)

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


CloseReason CloseReason CloseReason CloseReason

获取 ToolStripDropDown 关闭的原因。Gets the reason that the ToolStripDropDown closed.


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)