C#

class UpdateCounterCmd: ICommand
{
   private System.Windows.Forms.Label lblCount; //Label to be Modified.
   private Form1 frmMain; //Reference to the main form.

   private MethodInvoker delInvokeMe; // The MethodInvoker.


   public UpdateCounterCmd(Form1 formMain)
   {
      lblCount = new System.Windows.Forms.Label();
      frmMain = formMain;

      delInvokeMe = new MethodInvoker(Count);
   }
   
   public void Execute()
   {
      delInvokeMe.BeginInvoke(CallBack, null);
   }
   
   private void CallBack(IAsyncResult ar)
   {
      delInvokeMe.EndInvoke(ar);
   }
   
   private void Count()
   {
      frmMain.SuspendLayout();
      lblCounter.AutoSize = true;
      lblCounter.Location = new System.Drawing.Point(333, 96);
      lblCounter.Name = "LabelCount";
      lblCounter.Size = new System.Drawing.Size(35, 13);
      lblCounter.TabIndex = 0;
      lblCounter.Text = "Counting: 0";
      lblCounter.Visible = true;
      frmMain.Controls.Add(lblCounter); //PROBLEM CROSSING THREADS!
      
      int i = 0;
      for (i = 0; i <= 100; i++)
      {
         lblCounter.Text = "Counting: " + i.ToString();
         frmMain.ResumeLayout(true);
         frmMain.PerformLayout();
         frmMain.SuspendLayout();
      }
   }
   
}