WebBrowser 多线程问题，寻求解答！(已经搞清楚！)
<div id="cnblogs_post_body"><div class="cnblogs_code">using System;using System.Threading;using System.Windows.Forms;namespace WebBrowserTest{ public partial class MainForm : Form { public MainForm() { InitializeComponent(); } public static ChildForm childForm; private void MainForm_Load(object sender, EventArgs e) { this.Text = string.Format("线程ID：{0}", Thread.CurrentThread.ManagedThreadId); } private void button1_Click(object sender, EventArgs e) { Thread thread = new Thread(new ThreadStart(this.CreateForm)); thread.SetApartmentState(ApartmentState.STA); thread.IsBackground = true; thread.Start(); } private void CreateForm() { MainForm.childForm = new ChildForm(); MainForm.childForm.webBrowser.Navigate("http://tieba.baidu.com/"); //这里不是UI线程，为什么也能导航呢？ MainForm.childForm.ShowDialog(); } private void button2_Click(object sender, EventArgs e) { if (MainForm.childForm != null && MainForm.childForm.IsHandleCreated) { //如果不调用childForm窗口的Invoke方法修改标题，就报异常！ //线程间操作无效: 从不是创建控件&ldquo;ChildForm&rdquo;的线程访问它。 MainForm.childForm.Invoke(new MethodInvoker(delegate { MainForm.childForm.Text = string.Format("线程ID：{0}", Thread.CurrentThread.ManagedThreadId); })); //为什么这里就能正常导航页面呢？ //难道WebBrowser控件，始终都在UI线程运行？ //即使创建它的线程，不是UI线程？ MainForm.childForm.webBrowser.Navigate("http://www.baidu.com/"); } } }}
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