VB.Net Webview2 如何获取html源代码？

我在 VB.net (Visual Studio 2017) 项目中成功在 WebView2 上显示网站，但无法获取 html 源代码。请告诉我如何获取 html 代码。

My code:

Private Sub testbtn_Click(sender As Object, e As EventArgs) Handles testbtn.Click
        WebView2.CoreWebView2.Navigate("https://www.microsoft.com/")
End Sub

Private Sub WebView2_NavigationCompleted(sender As Object, e As CoreWebView2NavigationCompletedEventArgs) Handles WebView2.NavigationCompleted
        Dim html As String = ?????
End Sub

确实感谢您提前提出的建议。

我今天早些时候才刚刚开始摆弄 WebView2，并且只是在寻找同样的东西。我确实设法拼凑出这个解决方案：

Dim html As String
html = Await WebView2.ExecuteScriptAsync("document.documentElement.outerHTML;")

' The Html comes back with unicode character codes, other escaped characters, and
' wrapped in double quotes, so I'm using this code to clean it up for what I'm doing.
html = Regex.Unescape(html)
html = html.Remove(0, 1)
html = html.Remove(html.Length - 1, 1)

即时将我的代码从 C# 转换为 VB，希望不会错过任何语法错误。