一个tabcontrol的问题.(本人新手)


想做出如图的效果,但是有一个怪问题,就是选项卡上面的字都不见了,
试过在drawitem事件里面重绘,也是没有效果,
代码如下private void tabControl1_DrawItem_1(object sender, DrawItemEventArgs e)
        {
            Graphics g = e.Graphics;
            Rectangle rec = this.tabControl1.GetTabRect(e.Index);
            StringFormat sf = new StringFormat();
            sf.Alignment = StringAlignment.Center;
            sf.LineAlignment = StringAlignment.Center;
            TabPage m_tabpage = this.tabControl1.TabPages[e.Index];
            Brush m_brush;
            if (e.State == DrawItemState.Selected)
            {
                m_brush = new SolidBrush(e.ForeColor);
                g.FillRectangle(m_brush, rec);
            }
            else
            {
                m_brush = new SolidBrush(e.BackColor);
                e.DrawBackground();
            }
            g.DrawString(m_tabpage.Text,e.Font, m_brush, rec, sf);     
        }//tabcontrol的属性如下
this.tabControl1.Alignment = System.Windows.Forms.TabAlignment.Left;
            this.tabControl1.Controls.Add(this.tabPage1);
            this.tabControl1.Controls.Add(this.tabPage2);
            this.tabControl1.Controls.Add(this.tabPage3);
            this.tabControl1.Controls.Add(this.tabPage4);
            this.tabControl1.Controls.Add(this.tabPage5);
            this.tabControl1.Controls.Add(this.tabPage6);
            this.tabControl1.Dock = System.Windows.Forms.DockStyle.Fill;
            this.tabControl1.ItemSize = new System.Drawing.Size(40, 100);
            this.tabControl1.Location = new System.Drawing.Point(0, 24);
            this.tabControl1.Multiline = true;
            this.tabControl1.Name = "tabControl1";
            this.tabControl1.SelectedIndex = 0;
            this.tabControl1.Size = new System.Drawing.Size(716, 435);
            this.tabControl1.SizeMode = System.Windows.Forms.TabSizeMode.Fixed;
            this.tabControl1.TabIndex = 1;
            this.tabControl1.DrawItem += new System.Windows.Forms.DrawItemEventHandler(this.tabControl1_DrawItem_1);