我有一个用Webview2浏览器打开表单的模块。然后,Webview2控件使用用户用户名和密码(他在前面输入到两个文本框中)登录到一个网站,并通过几个链接加载到特定的网页,用户可以在其中搜索客户,www.login.ca/search。在用户输入名称并单击“搜索”按钮后,下一个页面加载一秒钟,然后再次加载www.login.ca/search页面。我只想让用户能够在不需要浏览器重新加载"login.ca/search“网页的情况下继续浏览该页面。
我有这个:
Imports System.Windows.Interop
Imports Microsoft.Web.WebView2.Core
Module SearchForCustomer
Public Sub CheckCustomer()
WebviewForm.Show()
OpenAndLogIn()
End Sub
Public Sub OpenAndLogIn()
'Open webpage and log in
Dim Loginwebaddress As String = "https://www.login.ca"
WebviewForm.WebView21.Source = New Uri(Loginwebaddress)
AddHandler(WebviewForm.WebView21.NavigationCompleted), AddressOf FirstPageWebView
End Sub
Private Async Sub FirstPageWebView(ByVal sender As Object, ByVal e As CoreWebView2NavigationCompletedEventArgs)
Dim msg = TextBox1.Text 'Username
Dim msg2 = TextBox2.Text 'password
Await WebviewForm.WebView21.ExecuteScriptAsync($"document.getElementById('LoginUN').value = '{msg}';")
Await WebviewForm.WebView21.ExecuteScriptAsync($"document.getElementById('Login1PW').value = '{msg2}';")
Await WebviewForm.WebView21.ExecuteScriptAsync($"document.getElementById('Login1_DoLogin').click();")
AddHandler(WebviewForm.WebView21.NavigationCompleted), AddressOf LoginWebpageLoaded
End Sub
Private Sub LoginWebpageLoaded
'Load the search for customer page
Dim Loginwebaddress As String = "https://www.login.ca/search"
WebviewForm.WebView21.Source = New Uri(Loginwebaddress)
End Sub
发布于 2022-01-13 13:52:55
FirstPageWebView
的第一行应该再次删除处理程序,因为它只应该使用一次。
当您调用AddHandler
时,您需要注册2个处理程序,它们将在每个NavigationCompleted
事件上同时运行。
(我不知道Vb.Net,所以这段代码可能是错误的,但我希望你能理解:
Private Async Sub FirstPageWebView(ByVal sender As Object, ByVal e As CoreWebView2NavigationCompletedEventArgs)
RemoveHandler(WebviewForm.WebView21.NavigationCompleted), AddressOf LoginWebpageLoaded
......... more code .........
https://stackoverflow.com/questions/70694361
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