Background processing in a thread. : Thread and UI « GUI Windows Form

 





using System;

using System.Drawing;

using System.Collections;

using System.ComponentModel;

using System.Windows.Forms;

using System.Data;

using System.Threading;



public class Form1 : System.Windows.Forms.Form {

    private System.Windows.Forms.Label label1;

    private System.Windows.Forms.Button button1;

    private System.Windows.Forms.Label ValueLabel;

    private System.Windows.Forms.Button button2;

    private System.ComponentModel.Container components = null;

    private Thread fThread;

    private int fValue;



    public Form1() {



        fValue = 0;

        this.label1 = new System.Windows.Forms.Label();

        this.button1 = new System.Windows.Forms.Button();

        this.ValueLabel = new System.Windows.Forms.Label();

        this.button2 = new System.Windows.Forms.Button();

        this.SuspendLayout();

        this.label1.Location = new System.Drawing.Point(24, 32);

        this.label1.Size = new System.Drawing.Size(80, 16);

        this.label1.Text = "Value of Data:";

        this.button1.Location = new System.Drawing.Point(232, 32);

        this.button1.Text = "&Update";

        this.button1.Click += new

             System.EventHandler(this.button1_Click);

        this.ValueLabel.Location = new System.Drawing.Point(120, 32);

        this.button2.Location = new System.Drawing.Point(104, 88);

        this.button2.Name = "button2";

        this.button2.RightToLeft =

             System.Windows.Forms.RightToLeft.No;

        this.button2.Size = new System.Drawing.Size(96, 23);

        this.button2.Text = "Start Thread";

        this.button2.Click += new

             System.EventHandler(this.button2_Click);

        this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);

        this.ClientSize = new System.Drawing.Size(336, 141);

        this.Controls.AddRange(new System.Windows.Forms.Control[] {

          this.button2,

          this.ValueLabel,

          this.button1,

          this.label1});

        this.ResumeLayout(false);



    }



    [STAThread]

    static void Main() {

        Application.Run(new Form1());

    }

    private void ThreadProc() {

        while (fValue < 1000) {

            Thread.Sleep(1000);

            fValue++;

        }

    }



    private void button2_Click(object sender, System.EventArgs e) {

        fThread = new Thread(new ThreadStart(ThreadProc));

        fThread.IsBackground = true;

        fThread.Start();



    }



    private void button1_Click(object sender, System.EventArgs e) {

        this.ValueLabel.Text = fValue.ToString();

    }

}
Background processing in a thread. : Thread and UI « GUI Windows Form « C# / C Sharp
