C#之tabcontrol颜色设置问题

Question

开始我用代码把tabcontrol的选项卡颜色重绘了，但是重绘完了之后我发现tabcontrol的边框有白色的边界，这个边界怎么去掉啊，求高手指点。重绘代码是我从网上找的，做了一些简单的修改，如下：
public partial class frmProfile : Form
    {
        public frmProfile()
        {
            InitializeComponent();
            this.tabControl1.DrawMode = System.Windows.Forms.TabDrawMode.OwnerDrawFixed;
            this.tabControl1.DrawItem +=new DrawItemEventHandler(this.tabControl1_DrawItem);
        }        private void frmProfile_Load(object sender, EventArgs e)
        {
            this.tabControl1.DrawMode = System.Windows.Forms.TabDrawMode.OwnerDrawFixed;
            this.tabControl1.DrawItem += new DrawItemEventHandler(this.tabControl1_DrawItem);
            tabControl1.TabPages[0].BackColor = Color.LightGray;        }        private void tabControl1_DrawItem(object sender, DrawItemEventArgs e)
        {
            
            StringFormat sf = new StringFormat();
            sf.LineAlignment = StringAlignment.Center;
            sf.Alignment = StringAlignment.Center;
            if (e.Index == tabControl1.SelectedIndex)
            {
                   e.Graphics.FillRectangle(Brushes.LightGray, e.Bounds.X - 1, e.Bounds.Y - 2, tabControl1.ItemSize.Width, tabControl1.ItemSize.Height + 2);
            }
            else
            {
                e.Graphics.FillRectangle(Brushes.LightGray, e.Bounds.X - 1, e.Bounds.Y - 2, tabControl1.ItemSize.Width, tabControl1.ItemSize.Height + 2);
            }
            e.Graphics.FillRectangle(Brushes.LightGray, tabControl1.TabPages.Count * tabControl1.ItemSize.Width + 1, 0, tabControl1.Width - tabControl1.TabPages.Count * tabControl1.ItemSize.Width, tabControl1.ItemSize.Height + 2);
            e.Graphics.DrawString(((TabControl)sender).TabPages[e.Index].Text, System.Windows.Forms.SystemInformation.MenuFont, new SolidBrush(Color.Black), e.Bounds, sf);       
         }c#tabcontrol

Answer 1

http://blog.csdn.net/conmajia/article/details/7596718