Anyone has made blinking button before?

Hi I am a beginner in this language. I have tried to make blinking button but seems that my code is not correct. Here is my lousy code: Form1.cs: using System; using System.Drawing; using System.Windows.Forms; using System.Timers; using System.Collections; using System.ComponentModel; using System.Data; namespace bLINKINGbUTTON2 { public class Form1 : Form { public Panel panel1; public Button cmdABC; public Button cmdDEF; public Form1() { this.Name = "Form1"; this.Text = "Form1"; this.Load += new System.EventHandler(this.Form1_Load); //Set the size of the Client Rectangle this.ClientSize = new System.Drawing.Size(500, 500); panel1 = new Panel(); // Initialize the Panel control. panel1.Location = new Point(10,10); panel1.Size = new Size(400, 300); // Set the Borderstyle for the Panel to three-dimensional. panel1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D; //Generate alphabetic buttons cmdABC=new Button(); cmdABC.Text=" A B C "; cmdABC.Location=new Point(24,40); cmdABC.Size =new Size(128,48); cmdABC.Visible = true; cmdABC.Enabled = true; cmdDEF=new Button(); cmdDEF.Text=" D E F "; cmdDEF.Location=new Point(200,40); cmdDEF.Size =new Size(128,48); // Add the Panel control to the form. this.Controls.Add(panel1); // Add the Button controls to the Panel. panel1.Controls.Add(cmdABC); panel1.Controls.Add(cmdDEF); } static void Main() { Application.Run(new Form1()); } private void Form1_Load(object sender, System.EventArgs e) { Connection myConnection = new Connection(); myConnection.Connect(); } } } Connection.cs: using System; using System.Timers; using System.Drawing; using System.Windows.Forms; using System.Collections; using System.ComponentModel; using System.Data; namespace bLINKINGbUTTON2 { public class Connection:Form1 { private System.Timers.Timer pollTimer; public Connection() { pollTimer = new System.Timers.Timer(5000); pollTimer.Elapsed += new ElapsedEventHandler(CheckForMessage); } public void Connect() { pollTimer.Start(); } public void Disconnect() { pollTimer.Stop(); } private void CheckForMessage (object source, ElapsedEventArgs e) { this.cmdABC.BackColor = Color.BurlyWood; this.cmdABC.BackColor = System.Windows.Forms.Form.DefaultBackColor; this.cmdDEF.BackColor = Color.Red; this.cmdDEF.BackColor = System.Windows.Forms.Form.DefaultBackColor; } } } Any help will be much appreciated. Thank you before!