Property BeforeUnloadHandler
- Namespace
- DotNetBrowser.Browser.Dialogs
- Assembly
- DotNetBrowser.dll
BeforeUnloadHandler
Gets or sets a handler that is used when the web page is about to be unloaded.
IHandler<BeforeUnloadParameters, BeforeUnloadResponse> BeforeUnloadHandler { get; set; }Property Value
Remarks
Some web pages may override the window.onbeforeunload JavaScript function, so that a
confirmation dialog will be shown every time when the user tries to reload a web page or navigate
to another web page. You can use this callback to display an appropriate confirmation message
dialog to ask the user if they really want to leave or reload the web page. To find out whether
the web page is going to be reloaded you can check the Cause
property.
Use the Stay() method to stay on the current web page.
Use the Leave() method to reload or navigate to another web page.
If the handler throws an exception, the Leave() method will be used.
Exceptions
- ObjectDisposedException
The IBrowser has already been disposed.
- ConnectionClosedException
The connection to the Chromium engine is closed.