Gets a value indicating whether the WebBrowser control is currently loading a new document.
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 property value is false when the ReadyState property value is WebBrowserReadyState.Complete.