日期:2014-05-18 浏览次数:20952 次
//主窗口 public partial class frmMain : Form { private System.Windows.Forms.TreeView tvChapterSelector;[color=#339966]//初始化语句略[/color] OpenStoryFile osfOpenStoryFile = new OpenStoryFile(); public frmMain() { InitializeComponent(); } private void frmMain_Load(object sender, EventArgs e) { osfOpenStoryFile.OpenStoryFileComplete += new OpenStoryFile.OpenStoryFileCompleteHandle(osfOpenStoryFile_OpenStoryFileComplete); osfOpenStoryFile.DoOpenStoryFile(@"F:\小说\科幻\回归千年.txt"); } void osfOpenStoryFile_OpenStoryFileComplete(System.Collections.ArrayList e) { for (Int32 I = ConstantVars.GlogbalConst.iZero; I < alStoryChapter.Count; I++) { tvChapterSelector.Nodes.Add((string)alStoryChapter[I] + string.Empty);[color=#FF0000]//这句报错 //在该控件上执行的操作正从错误的线程调用。使用 Control.Invoke 或 Control.BeginInvoke 封送到正确的线程才能执行此操作。[/color] } } } //异步打开文件的类 public class OpenStoryFile { public delegate void OpenStoryFileCompleteHandle(System.Collections.ArrayList e); public event OpenStoryFileCompleteHandle OpenStoryFileComplete; private event OpenStoryFileCompleteHandle OpenStoryFileCompletePretreat; System.Windows.Forms.Control ctrlTurnThread; System.Threading.Thread thrdOpenFile; object objForLock = new object(); string StoryFileToOpen; public OpenStoryFile() { ctrlTurnThread = new Control();[color=#993300]//这里创建控件应该表示这个控件是在主线程创建的吧?[/color] this.OpenStoryFileCompletePretreat += new OpenStoryFileCompleteHandle(OpenStoryFile_OpenStoryFileCompletePretreat); } void OpenStoryFile_OpenStoryFileCompletePretreat(OpenStoryFile.OpenStoryFileArgs e) { if (ctrlTurnThread.InvokeRequired) { MessageBox.Show("ctrlTurnThread.InvokeRequired");[color=#800000]//但是,这句没有执行到[/color] OpenStoryFileCompleteHandle osfcpT = new OpenStoryFileCompleteHandle(OpenStoryFileCompletePretreat); ctrlTurnThread.Invoke(osfcpT, new object[] { e }); } else { MessageBox.Show("ctrlTurnThread.InvokeRequired Treated");[color=#800000]//直接跑这来了。为什么?[/color] OpenStoryFileComplete(e); } } public void DoOpenStoryFile(string StoryFileToOpen) { this.StoryFileToOpen = StoryFileToOpen; thrdOpenFile = new System.Threading.Thread(new System.Threading.ThreadStart(OpenStoryFileAsyn)); thrdOpenFile.Start(); } private void OpenStoryFileAsyn() { lock (objForLock) { if (System.IO.File.Exists(StoryFileToOpen)) { try { System.Collections.ArrayList alStoryChapter = new System.Collections.ArrayList(); [color=#0000FF]//打开文件并作相应处理后,把内容填充到alStoryChapter[/color] } OpenStoryFileCompletePretreat(alStoryChapter);[color=#0000FF]//调用委托[/color] } } } }