/*
 * C# Programmers Pocket Consultant
 * Author: Gregory S. MacBeth
 * Email: gmacbeth@comporium.net
 * Create Date: June 27, 2003
 * Last Modified Date:
 * Version: 1
 */
using System;
using System.Collections;
using System.Threading;

namespace Client.Chapter_15___Threading
{
  public class ThreadingClassMonitor
  {
    public static Thread ThreadOne = ThreadOne = new Thread(new ThreadStart(MonitorExample));
    public static ArrayList MyList = new ArrayList();
    public ThreadingClassMonitor()
    {
      MyList.Add("Test1");
      MyList.Add("Test2");
    }
    static void Main(string[] args)
    {
      ThreadOne.Start();
    }
    protected static void MonitorExample()
    {
      Monitor.Enter(MyList);
      MyList.Add("Test3");
      Monitor.Exit(MyList);
    }
  }
}

           
          

   

/*
 * C# Programmers Pocket Consultant
 * Author: Gregory S. MacBeth
 * Email: gmacbeth@comporium.net
 * Create Date: June 27, 2003
 * Last Modified Date:
 * Version: 1
 */
using System;
using System.Threading;

namespace Client.Chapter_15___Threading
{
  public class DestroyingThreads
  {
    static int MyCount = 0;
    static void Main(string[] args)
    {
      MyClassThread me = new MyClassThread();
      Thread MyNewThread = new Thread(new ThreadStart(me.MyThread));

      MyNewThread.Start();
      if (MyCount == 0)
        MyNewThread.Abort();
    }
  }
  class MyClassThread
  {
    public void MyThread()
    {
    }
  }

}

           
          

   
 
using System;
using System.Threading;

class MainClass
{
    private static void DisplayMessage()
    {
        try
        {
            while (true)
            {
                Console.WriteLine("{0} : DisplayMessage thread active", DateTime.Now.ToString("HH:mm:ss.ffff"));
                Thread.Sleep(1000);
            }
        }
        catch (ThreadAbortException ex)
        {
            Console.WriteLine("{0} : DisplayMessage thread terminating - {1}",
               DateTime.Now.ToString("HH:mm:ss.ffff"),
              (string)ex.ExceptionState);
        }
        Console.WriteLine("{0} : nothing is called after the catch block",
            DateTime.Now.ToString("HH:mm:ss.ffff"));
    }

    public static void Main()
    {
        Thread thread = new Thread(DisplayMessage);
        Console.WriteLine("{0} : Starting DisplayMessage thread" +
            " - press Enter to terminate.",
            DateTime.Now.ToString("HH:mm:ss.ffff"));
        thread.Start();

        System.Console.ReadLine();
        thread.Abort("User pressed Enter");
        thread.Join();
    }
}

    

/*
* C# Programmers Pocket Consultant
* Author: Gregory S. MacBeth
* Email: gmacbeth@comporium.net
* Create Date: June 27, 2003
* Last Modified Date:
* Version: 1
*/
using System;
using System.Threading;

namespace Client.Chapter_15___Threading
{
public class MyThreadingClassChapter_15___Threading
{
static void Main(string[] args)
{
My2ndClass me = new My2ndClass();
Thread[] MyThreads = new Thread[10];

for (int I = 0; I < 100; I++) { MyThreads[I] = new Thread(new ThreadStart(me.MyThreadProc)); MyThreads[I].Start(); } } } class My2ndClass { private int counter; public void MyThreadProc() { IncCounter(); } private void IncCounter() { lock (this) { counter++; } } } } [/csharp]

/*
* C# Programmers Pocket Consultant
* Author: Gregory S. MacBeth
* Email: gmacbeth@comporium.net
* Create Date: June 27, 2003
* Last Modified Date:
* Version: 1
*/
using System;
using System.Threading;

namespace Client.Chapter_15___Threading
{
public class CreatingThreads
{
static void Main(string[] args)
{
Thread MyNewThread = new Thread(new ThreadStart(ThreadProc));

MyNewThread.Start();
MyNewThread.Join();
}
protected static void ThreadProc()
{
for (int i = 0; i < 100; i++) { Console.WriteLine(i); } } } } [/csharp]

/*
Professional Windows GUI Programming Using C#
by Jay Glynn, Csaba Torok, Richard Conway, Wahid Choudhury,
Zach Greenvoss, Shripad Kulkarni, Neil Whitlow

Publisher: Peer Information
ISBN: 1861007663
*/
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Threading;

namespace Wrox.WindowsGUIProgramming.Chapter9
{
///

///
struct _threadstart
{
public ThreadStart threadstart;
public DateTime dt;
}

public class frmWasteTime : System.Windows.Forms.Form
{
private System.Windows.Forms.Button butWasteTime;
private System.Windows.Forms.TextBox textBox1;
///

private System.ComponentModel.Container components = null;
private System.Windows.Forms.ListBox lbThreads;
private System.Windows.Forms.TextBox txtNoOfThreads;
private System.Windows.Forms.Button btThreadStart;

private System.IAsyncResult m_EndInvoke = null;

public frmWasteTime()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();

//
// TODO: Add any constructor code after InitializeComponent call
//
this.Show();
//TakeTime();
}

///

protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
///

private void InitializeComponent()
{
this.butWasteTime = new System.Windows.Forms.Button();
this.textBox1 = new System.Windows.Forms.TextBox();
this.lbThreads = new System.Windows.Forms.ListBox();
this.txtNoOfThreads = new System.Windows.Forms.TextBox();
this.btThreadStart = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// butWasteTime
//
this.butWasteTime.Location = new System.Drawing.Point(88, 32);
this.butWasteTime.Name = “butWasteTime”;
this.butWasteTime.TabIndex = 0;
this.butWasteTime.Text = “Waste Time”;
this.butWasteTime.Click += new System.EventHandler(this.butWasteTime_Click);
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(184, 24);
this.textBox1.Name = “textBox1”;
this.textBox1.TabIndex = 1;
this.textBox1.Text = “”;
//
// lbThreads
//
this.lbThreads.Location = new System.Drawing.Point(8, 64);
this.lbThreads.Name = “lbThreads”;
this.lbThreads.Size = new System.Drawing.Size(280, 277);
this.lbThreads.TabIndex = 2;
//
// txtNoOfThreads
//
this.txtNoOfThreads.Location = new System.Drawing.Point(8, 352);
this.txtNoOfThreads.Name = “txtNoOfThreads”;
this.txtNoOfThreads.TabIndex = 3;
this.txtNoOfThreads.Text = “”;
//
// btThreadStart
//
this.btThreadStart.Location = new System.Drawing.Point(128, 352);
this.btThreadStart.Name = “btThreadStart”;
this.btThreadStart.Size = new System.Drawing.Size(160, 23);
this.btThreadStart.TabIndex = 4;
this.btThreadStart.Text = “Start”;
this.btThreadStart.Click += new System.EventHandler(this.btThreadStart_Click);
//
// frmWasteTime
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(296, 390);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.btThreadStart,
this.txtNoOfThreads,
this.lbThreads,
this.textBox1,
this.butWasteTime});
this.Name = “frmWasteTime”;
this.Text = “Lock Form”;
this.Paint += new System.Windows.Forms.PaintEventHandler(this.painting);
this.ResumeLayout(false);

}
#endregion

///

[STAThread]
static void Main()
{
Application.Run(new frmWasteTime());
}

private void TakeTime()
{
int j = 0;
for(int i=0;i<320-j;i++) { System.Diagnostics.Debug.Write(i); } j++; } private void butWasteTime_Click(object sender, System.EventArgs e) { IAsyncResult m_EndInvoke2 = null; ThreadStart threadstart = new ThreadStart(TakeTime); m_EndInvoke = threadstart.BeginInvoke(new AsyncCallback(MethodBeginInvoke), String.Copy("test")); ThreadStart threadstart2 = new ThreadStart(TakeTime); m_EndInvoke2 = threadstart.BeginInvoke(new AsyncCallback(MethodBeginInvoke), null); //m_EndInvoke.AsyncWaitHandle.WaitOne(); threadstart.EndInvoke(m_EndInvoke); threadstart.EndInvoke(m_EndInvoke2); /*while(true) { if(m_EndInvoke.IsCompleted) MessageBox.Show("finally!!!"); break; }*/ } private void MethodBeginInvoke(System.IAsyncResult ar) { if(ar.CompletedSynchronously) MessageBox.Show("TakeTime() called synchronously"); else MessageBox.Show("TakeTime() called asynchronously"); } protected override void OnPaint(PaintEventArgs pe) { System.Diagnostics.Debug.Write("Paint event called"); } private void painting(object sender, System.Windows.Forms.PaintEventArgs e) { System.Diagnostics.Debug.Write("Paint event called"); } //System.Threading.ThreadStart[] threads; //DateTime[] dateTimeThread; _threadstart[] th; DateTime dtStart; DateTime dtEnd; private void btThreadStart_Click(object sender, System.EventArgs e) { th = new _threadstart[Convert.ToInt32(txtNoOfThreads.Text)]; //threads = (ThreadStart[])Array.CreateInstance(typeof(ThreadStart), Convert.ToInt16(txtNoOfThreads.Text)); //dateTimeThread = (DateTime[])Array.CreateInstance(typeof(DateTime), threads.Length); dtStart = DateTime.Now; for(int i = 0; i < th.Length; i++) { th[i].threadstart = new ThreadStart(TakeTime); th[i].threadstart.BeginInvoke(new AsyncCallback(ThreadFinished), i); th[i].dt = DateTime.Now; } /*while(true) { for(int i = 0; i < threads.Length; i++) { if((threads[i].ThreadState == System.Threading.ThreadState.Suspended) && finished[i].Equals(false)) { //put something into the listbox lbThreads.Items.Insert(i, "Thread "+i+" finished - "+(DateTime.Now.Subtract(dateTimeThread[i]))); finished[i] = true; } Refresh(); } }*/ } void FinalCallback(string blank) { dtEnd = DateTime.Now.Subtract(new TimeSpan(dtStart.Ticks)); lbThreads.Items.Add("Total Thread Time: "+((dtEnd.Minute*60)+dtEnd.Second).ToString()+" seconds"); lbThreads.Items.Add("Average Thread Time: "+(((dtEnd.Minute*60)+dtEnd.Second)/th.Length)+" seconds"); } void UpdateListbox(string listboxText) { lbThreads.Items.Add(listboxText); } delegate void ItemAdd(string item); private void ThreadFinished(IAsyncResult ar) { ItemAdd ia = new ItemAdd(UpdateListbox); ItemAdd ib = new ItemAdd(FinalCallback); int i = (int)ar.AsyncState; string state = "Thread "+(i+1)+" finished - "+(DateTime.Now.Subtract(th[i].dt)).ToString(); //put something into the listbox if(lbThreads.InvokeRequired) { lbThreads.Invoke(ia, new Object[] {state}); } else { lbThreads.Items.Add(state); } if(i==(th.Length-1)) lbThreads.Invoke(ib, new Object[]{""}); } } } [/csharp]

   

/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa

Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/

// HideForm.cs -- Demonstrates hiding a form and then doing background
//                processing in a second thread.
//
//                Compile this program with the following command line:
//                    C:>csc HideForm.cs
using System;
using System.Windows.Forms;
using System.Threading;

namespace HideForm
{
    public class HideForm : System.Windows.Forms.Form
    {
        private System.Windows.Forms.Button button1;
        public HideForm()
        {
            Text = "A Simple Form";
            button1 = new Button ();
            SuspendLayout();
            button1.Text = "Cancel";
            button1.Name = "button1";
            button1.Size = new System.Drawing.Size (72, 30);
            button1.Location = new System.Drawing.Point ((ClientRectangle.Width - button1.Size.Width) / 2, ClientRectangle.Height - 35);
            Controls.AddRange(new System.Windows.Forms.Control[] {this.button1});
            button1.Click += new System.EventHandler(OnClickButton1);
            this.Closed += new System.EventHandler(OnClickButton1);
            ResumeLayout (false);
            this.Visible = false;
        }
        [STAThread]
        static void Main() 
        {
            HideForm form = new HideForm();
            Thread delay = new Thread (new ThreadStart(form.DelayVisible));
            delay.Start ();
            Application.Run();
        }

        public void DelayVisible ()
        {
            while (true)
            {
                Thread.Sleep (2500);
                DialogResult result = MessageBox.Show ("Display Form?", "Display", MessageBoxButtons.YesNoCancel);
                switch (result)
                {
                    case DialogResult.Yes:
                        this.ShowDialog();
                        return;
                    case DialogResult.No:
                        continue;
                    case DialogResult.Cancel:
                        Application.Exit ();
                        break;
                }
                return;
            }
        }
        private void OnClickButton1(object sender, System.EventArgs e)
        {
            Application.Exit ();
        }
    }
}