看起来不像打电话那么简单
browser.TextBox1.Text = "blah";
据我了解,CEFSharp 是一种从 C# 包装器执行 Javascript 的方法。它不是 DOM 的 C# 版本(这正是它所需要的)。
所以,从 Github wiki 我会说你需要使用这段代码
string EvaluateJavaScriptResult;
var frame = chromeBrowser.GetMainFrame();
var task = frame.EvaluateScriptAsync("(function() { return document.getElementById('<textBoxElementID>').value; })();", null);
task.ContinueWith(t =>
{
if (!t.IsFaulted)
{
var response = t.Result;
EvaluateJavaScriptResult = response.Success ? (response.Result.ToString() ?? "null") : response.Message;
}
}, TaskScheduler.FromCurrentSynchronizationContext());
进而EvaluateJavaScriptResult
文本框中应该有文本。
这是一个完整的工作示例,设计者只需要一个面板(panel1)和一个按钮(button1):
运行它,在搜索框中输入一些内容(在维基百科中),然后点击按钮,您应该看到一个包含搜索框内容的消息框
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using CefSharp;
using CefSharp.WinForms;
namespace WindowsFormsApp1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
InitializeChromium();
}
List<string> classList = new List<string>();
public ChromiumWebBrowser chromeBrowser;
private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void InitializeChromium()
{
CefSettings settings = new CefSettings();
Cef.Initialize(settings);
chromeBrowser = new ChromiumWebBrowser("https://en.wikipedia.org/wiki/Main_Page");
this.panel1.Controls.Add(chromeBrowser);
chromeBrowser.Dock = DockStyle.Fill;
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
Cef.Shutdown();
}
public string extract;
private void button1_Click(object sender, EventArgs e)
{
string EvaluateJavaScriptResult;
var frame = chromeBrowser.GetMainFrame();
var task = frame.EvaluateScriptAsync("(function() { return document.getElementById('searchInput').value; })();", null);
task.ContinueWith(t =>
{
if (!t.IsFaulted)
{
var response = t.Result;
EvaluateJavaScriptResult = response.Success ? (response.Result.ToString() ?? "null") : response.Message;
MessageBox.Show(EvaluateJavaScriptResult);
}
}, TaskScheduler.FromCurrentSynchronizationContext());
}
}
}