using System; 
  using System.Collections.Generic; 
  using System.Drawing; 
  using System.Windows.Forms; 
   
  namespace bnmg 
  { 
   
  	public partial class MainForm : Form 
  	{ 
  		public MainForm() 
  		{ 
  		 
  			InitializeComponent(); 
  			 
  		 
  		} 
  		 
  		public	CheckBox[] check=new CheckBox[8]; 
  		void MainFormLoad(object sender, EventArgs e) 
  		{ 
  			for (int i = 0; i < check.Length; i++) 
  			{ 
  				 
  				check[i] = new CheckBox(); 
  				check[i].Left = 5; 
  				check[i].Width=50; 
  				check[i].Top = i*30+20; 
  				check[i].Click+= new System.EventHandler(tıkla); 
  				check[i].Text=i.ToString(); 
  				groupBox1. Controls.Add(check[i]); 
  			} 
  			 
   
   
  		} 
  		public void tıkla(Object sender, System.EventArgs e) 
  		{ 
  			foreach (Control c in groupBox1.Controls) 
  			{ 
  				if (c is CheckBox) 
  				{ 
  					if (((CheckBox)c).Checked == true) 
  					{ 
  						((CheckBox)c).ForeColor = Color.Red; 
   
  					} 
  					else 
  					{ 
  						((CheckBox)c).ForeColor = Color.Black; 
  					} 
  				} 
  			} 
  		 
  		} 
  		 
  		 
  	} 
  }