关于Richtextbox的问题

Question

工程中有一richtextbox控件，现在想：在其内容中选取特定格式文字，比如8位连续数字，高亮并加鼠标点击事件。
指的是点击高亮文字产生事件

Answer 1

OnSelectionChanged 事件里面，记下选中的内容如果是连续8位数字，把它高亮（选上了就自动高亮了吧？）你是要发送点击事件，还是要接收？接收的话有OnMouseClick事件，发送的话可以SendKeys

Answer 2

楼主的意思就是类似在VS编译器里写一个url编译器会自动变色，并能单击打开链接。
lz可以到网上搜搜其他TXT控件有实现这功能的没

Answer 3

不知道有啥API之类的，可以捕捉到特定格式文字然后...没啥好办法

Answer 4

我先告诉你怎么把特定的文字高亮显示吧using System.Text.RegularExpressions;namespace WindowsFormsApplication21
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }        private void button1_Click(object sender, EventArgs e)
        {
            richTextBox1.SelectionColor = Color.Red;            Regex r = new Regex(@"\d+", RegexOptions.Multiline);
            MatchCollection mc = r.Matches(richTextBox1.Text);            foreach (Match m in mc)
            {
                richTextBox1.Select(m.Index, m.Length);
                richTextBox1.SelectionColor = Color.Red;
                richTextBox1.SelectionFont = new Font(this.Font.FontFamily, this.Font.Size, FontStyle.Bold);
            }
        }
    }
}

Answer 5

UP ，顶上一楼，richtextbox 中对部分文字的点击事件好像得自己来实现，

Answer 6

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using System.Drawing;namespace P2PControlLib
{
    public class P2PTextBox : RichTextBox
    {
        public event LinkClickedEventHandler OnClickUser;
        Dictionary<Point, string> linkdic = new Dictionary<Point, string>();
        List<Point> linklist = new List<Point>();
        string link = null;
        private Font lastfont = null;
        public P2PTextBox()
            : base()
        {
            //this.ReadOnly = true;
        }        /// <summary>
        /// 设置显示格式
        /// </summary>
        /// <param name="c"></param>
        /// <param name="s"></param>
        private void SetTextStyle(Color c, FontStyle s)
        {
            this.Select(Text.Length, 0);
            this.SelectionColor = c;
            this.SelectionFont = new Font(Font, s);
            this.lastfont = SelectionFont;
        }
        /// <summary>
        /// 将文本添加到本控件
        /// </summary>
        /// <param name="text"></param>
        /// <param name="c"></param>
        /// <param name="s"></param>
        private void WriteText(string text, Color c, FontStyle s)
        {
            SetTextStyle(c, s);
            this.AppendText(text);
        }        /// <summary>
        /// 写普通文本
        /// </summary>
        /// <param name="text"></param>
        public void WriteText(string text)
        {
            WriteText(text, ForeColor, FontStyle.Regular);
        }        /// <summary>
        /// 写用户名
        /// </summary>
        /// <param name="user"></param>
        public void WriteUserName(string user,string id)
        {
            WriteLink(user,id);
        }        /// <summary>
        /// 添加一个警告
        /// </summary>
        /// <param name="alarm"></param>
        public void AppendAlarm(string alarm)
        {
            WriteText(alarm, Color.Red, FontStyle.Bold);
        }        /// <summary>
        /// 添加一张图片
        /// </summary>
        /// <param name="img"></param>
        public void AppendImg(Image img)
        {
            object obj = Clipboard.GetDataObject();
            Clipboard.SetDataObject(img);
            this.ReadOnly = false;
            this.Paste();//
            this.ReadOnly = true;
            Clipboard.SetDataObject(obj, true);
        }        /// <summary>
        /// 写入一个超链接形式的文本
        /// </summary>
        /// <param name="link"></param>
        private void WriteLink(string link, string id)
        {
            Point p = new Point(TextLength);
            WriteText(link, Color.Blue, FontStyle.Underline);
            p.Y = TextLength;
            linklist.Add(p);
            linkdic.Add( p,id);
        }        protected override void OnMouseMove(MouseEventArgs e)
        {
            base.OnMouseMove(e);
            if (lastfont == null)
            {
                return;
            }
            Point p = GetPositionFromCharIndex(TextLength-1);
            this.FindForm().Text = p.ToString();
            Graphics g = this.CreateGraphics();
            Size s = g.MeasureString("a", this.lastfont).ToSize();
            if (e.Y < p.Y + s.Height || e.X < p.X + s.Width)
            {
                int index = this.GetCharIndexFromPosition(e.Location);                foreach (KeyValuePair<Point, string> var in linkdic)
                {
                    if (index >= var.Key.X && index <= var.Key.Y)
                    {                        if (!this.Cursor.Equals(Cursors.Hand))
                        {
                            this.Cursor = Cursors.Hand;
                        }
                        link = var.Value;
                        return;
                    }
                }
            }            this.Cursor = Cursors.IBeam;
            link = null;
        }        protected override void OnMouseDown(MouseEventArgs e)
        {
            base.OnMouseDown(e);
            if (link != null && OnClickUser != null)
            {
                OnClickUser(this, new LinkClickedEventArgs(link));
            }
        }
    }
}

Answer 7

using System; 
using System.Collections.Generic; 
using System.Text; 
using System.Windows.Forms; 
using System.Drawing; namespace P2PControlLib 
{ 
    public class P2PTextBox : RichTextBox 
    { 
        public event LinkClickedEventHandler OnClickUser; 
        Dictionary <Point, string> linkdic = new Dictionary <Point, string>(); 
        List <Point> linklist = new List <Point>(); 
        string link = null; 
        private Font lastfont = null; 
        public P2PTextBox() 
            : base() 
        { 
            //this.ReadOnly = true; 
        }         /// <summary> 
        /// 设置显示格式 
        /// </summary> 
        /// <param name="c"> </param> 
        /// <param name="s"> </param> 
        private void SetTextStyle(Color c, FontStyle s) 
        { 
            this.Select(Text.Length, 0); 
            this.SelectionColor = c; 
            this.SelectionFont = new Font(Font, s); 
            this.lastfont = SelectionFont; 
        } 
        /// <summary> 
        /// 将文本添加到本控件 
        /// </summary> 
        /// <param name="text"> </param> 
        /// <param name="c"> </param> 
        /// <param name="s"> </param> 
        private void WriteText(string text, Color c, FontStyle s) 
        { 
            SetTextStyle(c, s); 
            this.AppendText(text); 
        }         /// <summary> 
        /// 写普通文本 
        /// </summary> 
        /// <param name="text"> </param> 
        public void WriteText(string text) 
        { 
            WriteText(text, ForeColor, FontStyle.Regular); 
        }         /// <summary> 
        /// 写用户名 
        /// </summary> 
        /// <param name="user"> </param> 
        public void WriteUserName(string user,string id) 
        { 
            WriteLink(user,id); 
        }         /// <summary> 
        /// 添加一个警告 
        /// </summary> 
        /// <param name="alarm"> </param> 
        public void AppendAlarm(string alarm) 
        { 
            WriteText(alarm, Color.Red, FontStyle.Bold); 
        }         /// <summary> 
        /// 添加一张图片 
        /// </summary> 
        /// <param name="img"> </param> 
        public void AppendImg(Image img) 
        { 
            object obj = Clipboard.GetDataObject(); 
            Clipboard.SetDataObject(img); 
            this.ReadOnly = false; 
            this.Paste();// 
            this.ReadOnly = true; 
            Clipboard.SetDataObject(obj, true); 
        }         /// <summary> 
        /// 写入一个超链接形式的文本 
        /// </summary> 
        /// <param name="link"> </param> 
        private void WriteLink(string link, string id) 
        { 
            Point p = new Point(TextLength); 
            WriteText(link, Color.Blue, FontStyle.Underline); 
            p.Y = TextLength; 
            linklist.Add(p); 
            linkdic.Add( p,id); 
        }         protected override void OnMouseMove(MouseEventArgs e) 
        { 
            base.OnMouseMove(e); 
            if (lastfont == null) 
            { 
                return; 
            } 
            Point p = GetPositionFromCharIndex(TextLength-1); 
            this.FindForm().Text = p.ToString(); 
            Graphics g = this.CreateGraphics(); 
            Size s = g.MeasureString("a", this.lastfont).ToSize(); 
            if (e.Y < p.Y + s.Height || e.X < p.X + s.Width) 
            { 
                int index = this.GetCharIndexFromPosition(e.Location);                 foreach (KeyValuePair <Point, string> var in linkdic) 
                { 
                    if (index >= var.Key.X && index <= var.Key.Y) 
                    {                         if (!this.Cursor.Equals(Cursors.Hand)) 
                        { 
                            this.Cursor = Cursors.Hand; 
                        } 
                        link = var.Value; 
                        return; 
                    } 
                } 
            }             this.Cursor = Cursors.IBeam; 
            link = null; 
        }         protected override void OnMouseDown(MouseEventArgs e) 
        { 
            base.OnMouseDown(e); 
            if (link != null && OnClickUser != null) 
            { 
                OnClickUser(this, new LinkClickedEventArgs(link)); 
            } 
        } 
    } 
}