VB.Net Webview2 如何获取 html 源代码?

问题描述

我成功地在我的 VB.net (Visual Studio 2017) 项目中的 WebView2 上显示了一个网站，但无法获取 html 源代码.请告诉我如何获取 html 代码.

I sucessfully display a web site on WebView2 in my VB.net (Visual Studio 2017) project but can not get html souce code. Please advise me how to get html code.

我的代码:

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

确实提前感谢您的建议.

Thank you indeed for your advise in advance.

推荐答案

我今天早些时候也刚刚开始使用 WebView2，只是在寻找同样的东西.我确实设法拼凑了这个解决方案:

I've only just started messing with the WebView2 earlier today as well, and was just looking for this same thing. I did manage to scrape together this solution:

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，所以希望不会遗漏任何语法错误.

Converted my code from C# to VB on the fly, so hopefully didn't miss any syntax errors.

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