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【CSharp】挂起恢复运行线程代码

作者:xqf222 / 发布于2014/2/25/ 300

//C# 挂起恢复运行线程代码 暂时没找到和测试出替换Thread.Resume()恢复运行和Thread.Suspend()暂停挂起的函数

//添加引用

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;

using System.Threading;
using System.Collections;



//定义变量

private Thread convertThread;
private Mutex mutex = new Mutex();
Queue myThreadQueue=new Queue();

//按钮事件

private void btnConstraintToBig5_Click(object sender, EventArgs e)
 {
 this.btnConstraintToBig5.Enabled = false;


 //测试数据库连接
 this.richTextBox1.Text = "";
 CurrentServerName = this.txtServerName.Text.Trim();
 CurrentDatabaseName = this.txt_DatabaseName.Text.Trim();
 CurrentUserName = this.txt_UserName.Text.Trim();
 CurrentUserPassword = this.txt_Password.Text.Trim();
 CurrentConnectionString = "Data Source=" + CurrentServerName + ";Initial Catalog=Master;User ID=" + CurrentUserName + ";password=" + CurrentUserPassword;

 DataTable myDataTable = new DataTable();
 try
 {
 SqlConnection thisConnection = new SqlConnection(CurrentConnectionString);
 SqlDataAdapter da = new SqlDataAdapter();
 da.SelectCommand = new SqlCommand("select * from sysservers", thisConnection);
 DataSet ds = new DataSet();
 da.Fill(ds, "Temp");
 myDataTable = ds.Tables["Temp"];
 thisConnection.Close();
 if (myDataTable.Rows.Count > 0)
 {
 this.richTextBox1.Text += "/r/n建立到数据库连接成功";
 CurrentConnectionString = "Data Source=" + CurrentServerName + ";Initial Catalog=" + CurrentDatabaseName + ";User ID=" + CurrentUserName + ";password=" + CurrentUserPassword;
 convertThread = new Thread(new ThreadStart(StartConvertConstraintToBig5));
 convertThread.IsBackground = true;
 convertThread.Start();
 }
 else
 {
 this.richTextBox1.Text += "/r/n建立到数据库连接失败";
 }
 }
 catch (Exception ex)
 {
 this.richTextBox1.Text += "/r/n建立到数据库连接出错" + ex.Message;
 }
 }

//线程调用函数

/// <summary>
 /// 线程调用的监听转换数据表约束到简体版函数
 /// </summary>
 private void StartConvertConstraintToBig5()
 {
 lock (myThreadQueue)
 {
 mutex.WaitOne();
 myDataBaseConverter.BeginConvertingMessage += new DataBaseEventHandler(OnBeginMessageReceived);
 myDataBaseConverter.EndConvertingMessage += new DataBaseEventHandler(OnEndMessageReceived);
 myDataBaseConverter.CurrentConvertingMessage += new DataBaseEventHandler(OnCurrentMessageReceived);
 myDataBaseConverter.ConvertingErrorMessage += new DataBaseEventHandler(OnErrorMessageReceived);
 myDataBaseConverter.ConvertTableConstraintToBig5(CurrentConnectionString);
 mutex.ReleaseMutex();
 }
 }

//暂停恢复线程运行

private void btnPauseConverting_Click(object sender, EventArgs e)
 {
 if (convertThread != null)
 {
 Console.WriteLine("当前线程状态名称:" + convertThread.ThreadState.ToString());
 Console.WriteLine("当前线程状态编号:" + Convert.ToInt32(convertThread.ThreadState).ToString());

 if (this.btnPauseConverting.Text == "继续转换" && Convert.ToInt32(convertThread.ThreadState) == 68)
 {
 try
 {
 this.btnPauseConverting.Text = "暂停转换";
 convertThread.Resume();
 }
 catch (Exception msg)
 {
 MessageBox.Show(msg.ToString(), "异常");
 }
 }
 else if (this.btnPauseConverting.Text == "暂停转换" && Convert.ToInt32(convertThread.ThreadState) == 36)
 {
 try
 {
 this.btnPauseConverting.Text = "继续转换";
 convertThread.Suspend();
 }
 catch (Exception msg)
 {
 MessageBox.Show(msg.ToString(), "异常");
 }
 }
 }
 }

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