Hi Vernon Marsden,
Does your 'WebView22' refer to WebView2 control?
If so, have you add this control to your project?
If you want to use WebView2 in winforms, please follow this document to create a WebView2 control.
And ensure you installed the following list of pre-requisites before adding WebView2 control:
- Microsoft Edge (Chromium) Canary channel installed on Windows 10, Windows 8.1, or Windows 7.
- Visual Studio 2017 or later.
Note that you need to use webView2.CoreWebView2.Navigate(url) to navigate the WebView2 to the URL.
Best Regards,
Daniel Zhang
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