HScrollBarArray.HelpRequested 事件
定义
用户请求控件帮助时发生。Occurs when the user requests help for a control.
public:
event System::Windows::Forms::HelpEventHandler ^ HelpRequested;
public event System.Windows.Forms.HelpEventHandler HelpRequested;
member this.HelpRequested : System.Windows.Forms.HelpEventHandler
Public Custom Event HelpRequested As HelpEventHandler
Public Event HelpRequested As HelpEventHandler
事件类型
注解
HelpRequested当用户按 F1 键或单击关联的上下文相关帮助按钮时,通常会引发事件。The HelpRequested event is typically raised when the user presses the F1 key or an associated context-sensitive Help button is clicked.
有关如何处理事件的详细信息,请参阅 处理和引发事件。For more information about how to handle events, see Handling and Raising Events.
备注
Microsoft.VisualBasic.Compatibility.VB6 命名空间中的函数和对象用于工具从 Visual Basic 6.0 升级到 Visual Basic。Functions and objects in the Microsoft.VisualBasic.Compatibility.VB6 namespace are provided for use by the tools for upgrading from Visual Basic 6.0 to Visual Basic. 多数情况下,这些函数和对象可再现 .NET Framework 中其他命名空间的功能。In most cases, these functions and objects duplicate functionality that you can find in other namespaces in the .NET Framework. 只有当 Visual Basic 6.0 代码模型与 .NET Framework 实现有显著区别时,才必须使用这些函数和对象。They are necessary only when the Visual Basic 6.0 code model differs significantly from the .NET Framework implementation.