////////功能：可以改变文本行距（行间距）的Label///作者：emanlee///用于：c# 2003,2005///时间：2006-8-10////using System;using System.ComponentModel;using System.Collections.Generic;using System.Diagnostics;using System.Text;using System.Drawing;namespace compass.Common{    public partial class myLabel : System.Windows.Forms.Label    {        int lineDistance = 5;//行间距        public int LineDistance        {            get { return lineDistance; }            set { lineDistance = value; }        }        public myLabel()        {            InitializeComponent();        }        public myLabel(IContainer container)        {            container.Add(this);            InitializeComponent();        }        protected override void OnPaint(System.Windows.Forms.PaintEventArgs e)        {            Graphics g = e.Graphics;            String drawString = this.Text;            Font drawFont = this.Font;            SolidBrush drawBrush = new SolidBrush(this.ForeColor);            SizeF textSize = g.MeasureString(this.Text, this.Font);//文本的矩形区域大小            int lineCount = Convert.ToInt16(textSize.Width / this.Width) + 1;//计算行数            this.Height = Convert.ToInt16((textSize.Height + lineDistance) * lineCount);//计算调整后的高度            this.AutoSize = false;            float x = 0.0F;            float y = 0.0F;            StringFormat drawFormat = new StringFormat();            int step = 1;            lineCount = drawString.Length;//行数不超过总字符数目            for (int i = 0; i < lineCount; i++)            {                //计算每行容纳的字符数目                int charCount;                for (charCount = 0; charCount < drawString.Length; charCount++)                {                    string subN = drawString.Substring(0, charCount);                    string subN1 = drawString.Substring(0, charCount + 1);                    if (g.MeasureString(subN, this.Font).Width <= this.Width                        && g.MeasureString(subN1, this.Font).Width > this.Width)                    {                        step = charCount;                        break;                    }                }                string subStr;                if (charCount == drawString.Length)//最后一行文本                {                    subStr = drawString;                    e.Graphics.DrawString(subStr, drawFont, drawBrush, x, Convert.ToInt16(textSize.Height * i) + i * LineDistance, drawFormat);                    break;                }                else                {                    subStr = drawString.Substring(0, step);//当前行文本                    drawString = drawString.Substring(step);//剩余文本                    e.Graphics.DrawString(subStr, drawFont, drawBrush, x, Convert.ToInt16(textSize.Height * i) + i * LineDistance, drawFormat);                }            }        }    }}