Close button in tabControl

Without deriving a class, here is a neat snippet:
http://www.dotnetthoughts.net/implementing-close-button-in-tab-pages/

Set the DrawMode property of the Tab Control to OwnerDrawFixed. This property decides whether system or developer can paint the captions.
Add the code in the DrawItem event of the Tab Control – This event will be invoked for painting each Tab Page.

    //This code will render a "x" mark at the end of the Tab caption. 
e.Graphics.DrawString("x", e.Font, Brushes.Black, e.Bounds.Right - 15, e.Bounds.Top + 4);
e.Graphics.DrawString(this.tabControl1.TabPages[e.Index].Text, e.Font, Brushes.Black, e.Bounds.Left + 12, e.Bounds.Top + 4);
e.DrawFocusRectangle();

Now for close button action, we need to add the following code to the MouseDown event of the Tab Control.

//Looping through the controls.
for (int i = 0; i < this.tabControl1.TabPages.Count; i++)
{
    Rectangle r = tabControl1.GetTabRect(i);
   //Getting the position of the "x" mark.
    Rectangle closeButton = new Rectangle(r.Right - 15, r.Top + 4, 9, 7);
    if (closeButton.Contains(e.Location))
    {
        if (MessageBox.Show("Would you like to Close this Tab?", "Confirm", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
        {
            this.tabControl1.TabPages.RemoveAt(i);
            break;
        }
    }
}