C# TabControl 重绘高仿 360浏览器选项卡

强迫症需要没合适的插件，来满足需求，无奈自己重写Tabcontrol，高仿360浏览器选项卡，主要适用于浏览器，容器类控件 基于WinForm开发，添加，删除按钮，去掉了多余的页边距，和讨厌的虚线框，风格整体扁平化，无闪烁，资源占用小 界面看博客：https://blog.csdn.net/CFY530/article/details/81784826

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Drawing2D;

namespace WindowsFormsApp1
{
    public class MordernTabcontrol : TabControl
    {
        const int CLOSE_SIZE = 16;
        const int ADD_SIZE = 16;
        public readonly Bitmap Add = Properties.Resources.Add;//添加按钮资源获取
        public readonly Bitmap Close = Properties.Resources.Close;//关闭按钮资源获取

        public MordernTabcontrol（）
            :base（）
        {
            Setstyles（）;
            this.SizeMode = TabSizeMode.Fixed;
            this.Dock = Dockstyle.Fill;
            this.Font = new System.Drawing.Font（“微软雅黑“ 9F）;
            this.ItemSize = new System.Drawing.Size（232 30）;
        }

        private void Setstyles（）
        {
            base.Setstyle（
                Controlstyles.DoubleBuffer |
                Controlstyles.UserPaint |
                Controlstyles.OptimizedDoubleBuffer |
                Controlstyles.AllPaintingInWmPaint |
                Controlstyles.ResizeRedraw |
                Controlstyles.SupportsTransparentBackColor true）;
            base.Updatestyles（）;
        }

        /// 
 
        /// 解决系统TabControl多余边距问题 
        /// 
 
        public override Rectangle DisplayRectangle
        {
            get
            {
                Rectangle rect = base.DisplayRectangle;
                return new Rectangle（rect.Left - 3 rect.Top-1 rect.Width + 8 rect.Height + 8）;
            }
        }

        protected override void onselecting（TabControlCancelEventArgs e）
        {
            if （e.TabPageIndex == this.TabPages.Count - 1）//拦截添加选项卡事件
                e.Cancel = true;

        }

        protected override void OnPaint（PaintEventArgs e）
        {
            Rectangle rect = this.ClientRectangle; //获取tabcontrol背景区域
            e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;//画图质量
            e.Graphics.InterpolationMode = InterpolationMode.HighQualityBilinear;
            e.Graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
            e.Graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
            using （BufferedGraphics bufferedGraphics = BufferedGraphicsManager.Current.Allocate（e.Graphics rect））//创建缓冲 Graphics对象，区域
            {
                bufferedGraphics.Graphics.FillRectangle（new SolidBrush（Color.FromArgb（222235252）） rect）;//填充背景
                for （int index = 0; index < this.TabCount; index++）
                {
                    DrawTabPage（bufferedGraphics.Graphics this.GetTabRect（index）index）;
                }
                bufferedGraphics.Render（e.Graphics）; //获取缓冲 Graphics对象，区域
            }
            base.OnPaint（e）;
        }

        private void DrawTabPage（Graphics graphics Rectangle rectangleint index）
        {
    

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2018-08-18 00:15  WindowsFormsApp1\
     文件         189  2018-08-08 01:14  WindowsFormsApp1\App.config
     文件       10373  2018-08-18 00:14  WindowsFormsApp1\MordernTabcontrol.cs
     文件         531  2018-08-12 18:03  WindowsFormsApp1\Program.cs
     目录           0  2018-08-18 00:11  WindowsFormsApp1\Properties\
     文件        1330  2018-08-08 01:14  WindowsFormsApp1\Properties\AssemblyInfo.cs
     文件        3605  2018-08-15 23:24  WindowsFormsApp1\Properties\Resources.Designer.cs
     文件        6433  2018-08-15 23:24  WindowsFormsApp1\Properties\Resources.resx
     文件        1103  2018-08-08 01:14  WindowsFormsApp1\Properties\Settings.Designer.cs
     文件         249  2018-08-08 01:14  WindowsFormsApp1\Properties\Settings.settings
     目录           0  2018-08-18 00:11  WindowsFormsApp1\Resources\
     文件         112  2018-08-08 22:42  WindowsFormsApp1\Resources\Add.png
     文件         140  2018-08-08 22:42  WindowsFormsApp1\Resources\Close.png
     文件        4696  2018-08-18 00:15  WindowsFormsApp1\TestForm.Designer.cs
     文件         806  2018-08-18 00:15  WindowsFormsApp1\TestForm.cs
     文件        9721  2018-08-18 00:15  WindowsFormsApp1\TestForm.resx
     文件        4014  2018-08-15 23:32  WindowsFormsApp1\WindowsFormsApp1.csproj
     文件        3070  2018-08-09 17:19  WindowsFormsApp1\app.manifest
     目录           0  2018-08-18 00:11  WindowsFormsApp1\bin\
     目录           0  2018-08-18 00:11  WindowsFormsApp1\bin\Debug\
     文件       20992  2018-08-18 00:15  WindowsFormsApp1\bin\Debug\WindowsFormsApp1.exe
     文件         189  2018-08-08 01:14  WindowsFormsApp1\bin\Debug\WindowsFormsApp1.exe.config
     文件       28160  2018-08-18 00:15  WindowsFormsApp1\bin\Debug\WindowsFormsApp1.pdb
     目录           0  2018-08-18 00:17  WindowsFormsApp1\bin\Release\
     目录           0  2018-08-18 00:11  WindowsFormsApp1\obj\
     目录           0  2018-08-18 00:15  WindowsFormsApp1\obj\Debug\
     文件       29227  2018-08-15 23:40  WindowsFormsApp1\obj\Debug\DesignTimeResolveAssemblyReferences.cache
     文件        7335  2018-08-15 23:24  WindowsFormsApp1\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
     目录           0  2018-08-18 00:11  WindowsFormsApp1\obj\Debug\TempPE\
     文件        3584  2018-08-15 23:24  WindowsFormsApp1\obj\Debug\TempPE\Properties.Resources.Designer.cs.dll
     文件           0  2018-08-08 01:14  WindowsFormsApp1\obj\Debug\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs
............此处省略11个文件信息