C# TabControl Tab标签背景色设置

WinForm中TabControl的Tab标签颜色为白色，要想修改其背景颜色，没有现成的属性可用，需要代码实现，具体步骤为：

1、讲TabControl的属性【DrawMode】设置为：OwnerDrawFixed

2、在TabControl事件【DrawItem】中添加如下代码： 

private void tabControlLeft_DrawItem(object sender, DrawItemEventArgs e)
        {
            //标签背景填充颜色
            SolidBrush BackBrush = new SolidBrush(MainBackColor);
            //标签文字填充颜色
            SolidBrush FrontBrush = new SolidBrush(Color.Black);
            StringFormat StringF = new StringFormat();
            //设置文字对齐方式
            StringF.Alignment = StringAlignment.Center;
            StringF.LineAlignment = StringAlignment.Center;

            for (int i = 0; i < tabControlLeft.TabPages.Count; i++)
            {
                //获取标签头工作区域
                Rectangle Rec = tabControlLeft.GetTabRect(i);
                //绘制标签头背景颜色
                e.Graphics.FillRectangle(BackBrush, Rec);
                //绘制标签头文字
                e.Graphics.DrawString(tabControlLeft.TabPages[i].Text, new Font("宋体", 12), FrontBrush, Rec, StringF);
            }
        }