using System;

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

namespace Record

{ 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) { try { 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; 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); } } } catch { } } } }

本文转自94cool博客园博客，原文链接：http://www.cnblogs.com/94cool/archive/2009/12/18/1626997.html，如需转载请自行联系原作者