private void button1_Click(object sender, EventArgs e)
{
            j = j + 1;
            TextBox cntrl;
            LinkLabel labl;
            cntrl = new TextBox();
            cntrl.Text = "Text " + i.ToString();
            labl = new LinkLabel();
            labl.Name = "lbl" + j.ToString();
            labl.Text = "Remove Text Box";

            labl.Tag = cntrl;

            labl.Click += new EventHandler(RemoveControl);
            if (i < this.Height)
            {
                cntrl.Location = new Point(0, i);
                labl.Location = new Point(cntrl.Width + 5 , i);
                i = i + cntrl.Height +5;
                Controls.Add(cntrl);
                Controls.Add(labl);
            }
            else
            {
                MessageBox.Show("Cannot Add more Controls");
            }
}

        public void RemoveControl(object sender, System.EventArgs e)
        {
                LinkLabel lbls=(LinkLabel)sender;
                this.Controls.Remove((LinkLabel)sender);
                this.Controls.Remove((TextBox)lbls.Tag);

        }

     private void button2_Click(object sender, EventArgs e)
        {
            foreach (Control ctrl in Controls)
            {
                if (ctrl is TextBox)
                {
                    MessageBox.Show(((TextBox)ctrl).Text);
                }
            }
        }