TabControl with Close and Add Button

Question

I\'m tring to make a tab control have a \"x\" (close button) and \"+\" (new tab button). I found a solution to add a x button, the tab looks like this now:

Answer 1

Another way of going about it is creating a new TabControl which extends the TabControl class. I had the same issue once and that was how I did it, I couldn't find the finished code but this will work in adding an X to your tabs, the same can be applied for the + sign:

public delegate bool PreRemoveTab(int indx);
public class TabControlEx : TabControl
{
    public TabControlEx()
        : base()
    {
        PreRemoveTabPage = null;
        this.DrawMode = TabDrawMode.OwnerDrawFixed;
    }

    public PreRemoveTab PreRemoveTabPage;

    protected const int size = 5;

    protected int moveRight = 0;

    protected int MoveRight
    {
        get { return moveRight; }
        set { moveRight = value; }
    }

    protected override void OnDrawItem(DrawItemEventArgs e)
    {
        Brush b = new SolidBrush(Color.Salmon);
        Brush b1 = new SolidBrush(Color.Black);
        Font f = this.Font;
        Font f1 = new Font("Arial", 9,FontStyle.Bold);
        if (e.Index != 0)
        {
            Rectangle r = e.Bounds;
            r = GetTabRect(e.Index);
            r.Offset(2, 2);
            r.Width = size;
            r.Height = size;               
            Pen p = new Pen(b,2);
            string title = this.TabPages[e.Index].Text;               
            string boldLetter = title.Substring(0, 1);
            title = title.Remove(0, 1);
            MoveRight = ((Int32)e.Graphics.MeasureString(title, f, 200).Width) + 1;   // -1
            e.Graphics.DrawLine(p, r.X +10 + MoveRight - 2, r.Y, r.X +10 + MoveRight + r.Width, r.Y + r.Height+2);
            e.Graphics.DrawLine(p, r.X +10 + MoveRight + r.Width, r.Y, r.X + 10 + MoveRight-2, r.Y + r.Height+2);
            e.Graphics.DrawString(boldLetter, f1, b1, new PointF(r.X, r.Y));
            e.Graphics.DrawString(title, f, b1, new PointF(r.X+8, r.Y+1));    
        }
        else
        {
            Rectangle r = GetTabRect(e.Index);
            e.Graphics.DrawString(this.TabPages[e.Index].Text, f, b1, new PointF(r.X + 5, r.Y));
        }
    }

    protected override void OnMouseClick(MouseEventArgs e)
    {
        Point p = e.Location;
        for (int i = 0; i < TabCount; i++)
        {
            Rectangle r = GetTabRect(i);
            r.Offset(2, 2);
            r.Width = size+2;
            r.Height = size+2;
            r.X = r.X + MoveRight + 8;
            if (r.Contains(p))
            {
                if (i != 0)
                {
                    CloseTab(i);
                }
            }
        }
    }

    private void CloseTab(int i)
    {
        if (PreRemoveTabPage != null)
        {
            bool closeIt = PreRemoveTabPage(i);
            if (!closeIt)
                return;
        }
        TabPages.Remove(TabPages[i]);
    }
}

You can try modifying it a bit until it suits your needs.