Occurs when the user or code scrolls through the client area.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The event occurs when the user scrolls through the client area by interacting with the scroll bars, or when the user navigates between controls and the active control scrolls into view. The event also occurs when you write code, such as setting the AutoScrollPosition property, that scrolls through the client area.
You can use the ScrollOrientation property in your event handler to determine the scroll bar orientation for the event.
For more information about handling events, see Consuming Events.
The following code example demonstrates the use of this member. In the example, an event handler reports on the occurrence of the event. This report helps you to learn when the event occurs and can assist you in debugging. To report on multiple events or on events that occur frequently, consider replacing MessageBox::Show with Console::WriteLine or appending the message to a multiline TextBox.
To run the example code, paste it into a project that contains an instance of a type that inherits from ScrollableControl, such as a Panel or ContainerControl. Then name the instance ScrollableControl1 and ensure that the event handler is associated with the event.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.