C#重绘tabControl的tabPage标签

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          添加控件的DrawItem事件：书写代码如下 

           Graphics g = e.Graphics;
            Font font = new Font("微软雅黑", 14f, System.Drawing.GraphicsUnit.Pixel);
            SolidBrush brush = new SolidBrush(Color.Black);
            if (e.Index == this.tcContainer.SelectedIndex)
            {
                brush = new SolidBrush(Color.Blue);
            }

            RectangleF rectangle = (RectangleF)(tcContainer.GetTabRect(e.Index));
            RectangleF rectangle2 = new RectangleF(rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
            g.FillRectangle(new SolidBrush(SystemColors.ButtonHighlight), rectangle2);
            StringFormat sformat = new StringFormat();
            sformat.LineAlignment = StringAlignment.Center;
            sformat.Alignment = StringAlignment.Center;
            g.DrawString(((TabControl)sender).TabPages[e.Index].Text, font, brush, rectangle2, sformat);