How to stop CefSharp ChromiumWebBrowser from following links - wpf

Question

Right now we use the old WPF WebBrowser control to show a web site in our program. Since this old control is based on Internet Explorer 11 and a lot of newer web sites show a message, that they are not running on Internet Explorer 11, we are looking for a replacement for this old control.
We took a look into WebView2 but unfortunately this browser doesn't show up in our setup (WPF control hosted in an ElementHost in WinForms, hosted in an ocx in COM, used in MS Access).
So we take a look in CefSharp now. I didn't get to trying if this browser shows up in our setup because I don't find a solution for a simple requirement in my test program.
I'd like to restrict the user to follow links that might be part of the web site. In WebView2 there's a NavigationStarting event which can be canceled, but I didn't find anything like that in CefSharp.
There's an AddressChanged event, but this also fires when the web site is re-directing.
So, is it somehow possible with CefSharp to load an initial website (including any re-directions) and then doing nothing when a link inside the web site is clicked?

Answer 1

You can cancel navigation in OnBeforeBrowse
public class CustomRequestHandler : CefSharp.Handler.RequestHandler
{
protected override bool OnBeforeBrowse(IWebBrowser chromiumWebBrowser, IBrowser browser, IFrame frame, IRequest request, bool userGesture, bool isRedirect)
{
if (request.TransitionType == TransitionType.LinkClicked)
{
//Cancel the request by returning true
return true;
}
return base.OnBeforeBrowse(chromiumWebBrowser, browser, frame, request, userGesture, isRedirect);
}
}
browser.RequestHandler = new CustomRequestHandler();