C# TabControl Tab標簽背景色設置

WinForm中TabControl的Tab標簽顏色為白色，要想修改其背景顏色，沒有現成的屬性可用，需要代碼實現，具體步驟為：

1、講TabControl的屬性【DrawMode】設置為：OwnerDrawFixed

2、在TabControl事件【DrawItem】中添加如下代碼： 

private void tabControlLeft_DrawItem(object sender, DrawItemEventArgs e)
        {
            //標簽背景填充顏色
            SolidBrush BackBrush = new SolidBrush(MainBackColor);
            //標簽文字填充顏色
            SolidBrush FrontBrush = new SolidBrush(Color.Black);
            StringFormat StringF = new StringFormat();
            //設置文字對齊方式
            StringF.Alignment = StringAlignment.Center;
            StringF.LineAlignment = StringAlignment.Center;

            for (int i = 0; i < tabControlLeft.TabPages.Count; i++)
            {
                //獲取標簽頭工作區域
                Rectangle Rec = tabControlLeft.GetTabRect(i);
                //繪制標簽頭背景顏色
                e.Graphics.FillRectangle(BackBrush, Rec);
                //繪制標簽頭文字
                e.Graphics.DrawString(tabControlLeft.TabPages[i].Text, new Font("宋體", 12), FrontBrush, Rec, StringF);
            }
        }