using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace ExerciseUIPrj.controls
{
    public partial class CustomControl1 : Control
    {

        Rectangle picRec 
 
= new Rectangle();
        Rectangle NameRec = new Rectangle();
        Rectangle DirRec = new Rectangle();
        Rectangle BtnRec = new Rectangle();
        Rectangle BtnRec1 = new Rectangle();
        Rectangle TimeRec = new Rectangle();
        Rectangle SizeRec = new Rectangle();

        public
 
 CustomControl1()
        {
            InitializeComponent();
            BackColor = Color.White;
        }
        protected override void OnSizeChanged(EventArgs e)
        {
            base.OnSizeChanged(e);
            Size txtSize = TextRenderer.MeasureText("abc", Font);
            int pwid = txtSize.Height * 2
 
 + 10;
            int y =(int) ((Height - pwid) / 2.0);
            Point p = new Point(5, y);
            picRec = new Rectangle(p, new Size(pwid, pwid));
            int txtwid = (int)(Width / 2.0);
            NameRec = new Rectangle(new Point(p.X+picRec.Width + 2, p.Y), new Size(txtwid, txtSize.Height));
            DirRec = new Rectangle(new Point(p.X + picRec.Width +2, p.Y+txtSize.Height+5), new Size(txtwid, txtSize.Height));
            BtnRec = new Rectangle(new Point(NameRec.Location.X + NameRec.Width + 2, NameRec.Y + (int)(txtSize.Height/2.0)), new Size(txtSize.Height,txtSize.Height));
            BtnRec1 = new Rectangle(new Point(NameRec.Location.X + DirRec.Width + 2+txtSize.Width+2, NameRec.Y + (int)(txtSize.Height / 2.0)), new Size(txtSize.Height, txtSize.Height));
            TimeRec = new Rectangle(new Point(BtnRec1.Location.X + txtSize.Width + 4, NameRec.Y), new Size(Width-picRec.Width-NameRec.Width-BtnRec.Width*2-2*4, txtSize.Height));
            SizeRec = new Rectangle(new Point(BtnRec1.Location.X + txtSize.Width + 4, NameRec.Y+txtSize.Height+2), new Size(Width - picRec.Width - NameRec.Width - BtnRec.Width * 2 - 2 * 4, txtSize.Height));
            

        }

        protected override void OnPaint(PaintEventArgs pe)
        {

            var g = pe.Graphics;
            g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
            g.FillRectangle(Brushes.Red, picRec);//圖標

            var t1 = "這是一句測試文檔";
            var t2 = "這是一句測試文檔這是一句測試文檔這是一句測試文檔這是一句測試文檔這是一句測試文檔這是一句測試文檔這是一句測試文檔這是一句測試文檔";
            DrawTxt(t1, g, NameRec, "這");
            DrawTxt(t2, g, DirRec, "這");
            g.FillRectangle(Brushes.Green, BtnRec);
            g.FillRectangle(Brushes.Blue, BtnRec1);
            var t3 = string.Format("修改時間:{0}",DateTime.Now.ToString("yyyy-MM-dd hh:mm:ss"));
            var t4 = "文件大小：4555KB";
            StringFormat sf = new StringFormat();
            sf.Alignment = StringAlignment.Near;
            sf.LineAlignment = StringAlignment.Near;
            g.DrawString(t3, Font, Brushes.Black, TimeRec,sf);
            g.DrawString(t4, Font, Brushes.Black, SizeRec,sf);

            base.OnPaint(pe);

        }
        void DrawTxt(string s, Graphics g, Rectangle rect,string key)
        {
            string[] ress = s.Split(key.ToCharArray());

            List<string> res = new List<string>();
            if (s.StartsWith(key))
                res.Add(key);
            if (ress.Length > 1)
            {
                foreach (var r in ress)
                {
                    if (string.IsNullOrEmpty(r))
                        continue;
                    res.Add(r);
                    res.Add(key);
                }
                if (!s.EndsWith(key))
                    res.RemoveAt(res.Count - 1);
            }
            else
            {
                res.Add(s);
            }

            StringFormat sf = new StringFormat();
            sf.Alignment = StringAlignment.Near;
            sf.LineAlignment = StringAlignment.Near;
            sf.Trimming = StringTrimming.EllipsisCharacter;
            
            int cwid = 0;
            for (int i = 0; i < res.Count; i++)
            {
                int wid = TextRenderer.MeasureText(g, res[i], Font,new Size(),TextFormatFlags.NoPadding|TextFormatFlags.NoPrefix).Width;
                Brush b = res[i] == key ? Brushes.Red : Brushes.Black;
                int x = cwid+wid;
                if(x>=rect.Width)
                {
                    wid = rect.Width - cwid;
                    RectangleF rec = new RectangleF(new PointF(rect.Location.X+cwid,rect.Y), new SizeF(wid, rect.Height));
                    g.DrawString(res[i], Font, b, rec, sf);
                    break;
                }
                else
                {
                    g.DrawString(res[i], Font, b, new Point(rect.Location.X + cwid, rect.Y), sf);
                }
                cwid += wid;

            }
        }
    }
}

用自帶的控件堆出來的用戶控件放在flowlayotpanel裏邊多了滾動的時候閃的厲害·，這裏就用自己畫一個··順便解決特殊字符不同顏色顯示的問題··這個堆多了好像也會閃爍···在panel裏邊堆200個就會閃····應該還是得做分頁·····好麻煩···

C#畫個控件,指定字符特殊顏色顯示