In the currently used CefSharp ChromiumWebBrowser made a simple browser, how do I prevent pop-up window click on the link, I want to always jump in a window display, seek the most, so far is a c # code, I will encounter a problem when converted to vb.net is in

 Inherits ILifeSpanHandler 

Tip: when error BC30258 class can inherit from another class,
Excuse me, which a great god can teach me how to do this thing vb.net code to write?