Invoke Click Cefsharp VB

问题

I would like to simulate a click or keypresses to a web browser element that is on my visual studio vb project. I have found ways to do it for the webbrowser object built-in to visual studio, but I am using the cefsharp browser, so weBrowser.Document.GetElementById('id').InvokeMember("Click") would not work, because cefsharp doesn't allow .Document. So my question, to reiterate, is, how would I use vb to simulate a click on my cefsharp webbrowser? Any help is appreciated, and have a nice day.

EDIT: I've been working on this code: Dim elementID As String = "myBtn" Dim click As String = "Click" browser.ExecuteScriptAsync("Document.All(elementID).InvokeMember(click)") but I am not sure if it will work or how to use the elementID part (I am not sure what kind of web elements can go here). Maybe this extra information will help.

回答1:

Using ExecuteScriptAsync will execute JavaScript against the Chrome engine, so you would have to send valid JavaScript to this function. The following code shows how you could start a search using DuckDuckGo

Imports System.Threading
Imports CefSharp
Imports CefSharp.WinForms

Public Class Form1
  Private _browser As New ChromiumWebBrowser()


  Sub New()
    ' This call is required by the designer.
    InitializeComponent()

    ' Add any initialization after the InitializeComponent() call.
    _browser.Top = 10
    _browser.Left = 10
    _browser.Width = 600
    _browser.Height = 400
    Controls.Add(_browser)
  End Sub


  Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    _browser.Load("https://duckduckgo.com/")
    'for simplicity just wait until page is downloaded, should be handled by LoadingStateChanged
    Thread.Sleep(3000)
    Dim jsScript As String = <js><![CDATA[
document.all("q").value = "stack overflow";
document.all("search_button_homepage").click();
                             ]]></js>.Value
    _browser.ExecuteScriptAsync(jsScript)
  End Sub


End Class

来源：https://stackoverflow.com/questions/46874570/invoke-click-cefsharp-vb