Assembly: System.Windows.Forms (in system.windows.forms.dll)
If this property is true, you can use the Stop method to halt the current navigation before the new document is fully loaded. Use the ReadyState property to determine the exact navigation state of the WebBrowser control. The IsBusy property value is false when the ReadyState property value is WebBrowserReadyState.Complete.
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.