C#

<br />
namespace WindowsApplication1<br />
{<br />
    public class Form1 : Form<br />
    {<br />
        private TabControl tabControl1 = new TabControl();<br />
        private int c = 0;<br />
<br />
        public Form1()<br />
        {<br />
            tabControl1.Location = new System.Drawing.Point(10, 10);<br />
            tabControl1.Size = new System.Drawing.Size(180, 180);<br />
            tabControl1.HandleCreated += new EventHandler(tabControl1_HandleCreated);<br />
<br />
            this.ClientSize = new System.Drawing.Size(200, 200);<br />
            this.Controls.Add(tabControl1);<br />
        }<br />
<br />
        void tabControl1_HandleCreated(object sender, EventArgs e)<br />
        {<br />
            tabControl1.TabPages.Add((++c).ToString());<br />
        }<br />
    }<br />
}<br />