ASP.NETÑéÖ¤Âë(C#)
* Copyright all(c) 2005 ZhongFeng, http://blog.csdn.net/SW515 */
public class ValidateCode : System.Web.UI.Page
{
private void Page_Load(object sender, System.EventArgs e)
{
this.CreateCheckCodeImage(GenerateCheckCode());
}
#region Web ´°ÌåÉè¼ÆÆ÷Éú³ÉµÄ´úÂë
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: ¸Ãµ÷ÓÃÊÇ ASP.NET Web ´°ÌåÉè¼ÆÆ÷Ëù±ØÐèµÄ¡£
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// Éè¼ÆÆ÷Ö§³ÖËùÐèµÄ·½·¨ - ²»ÒªÊ¹ÓôúÂë±à¼Æ÷ÐÞ¸Ä
/// ´Ë·½·¨µÄÄÚÈÝ¡£
/// </summary>
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private string GenerateCheckCode()
{
int number;
char code;
string checkCode = String.Empty;
System.Random random = new Random();
for(int i=0; i<5; i++)
{
number = random.Next();
if(number % 2 == 0)
code = (char)('0' + (char)(number % 10));
else
code = (char)('A' + (char)(number % 26));
checkCode += code.ToString();
}
Response.Cookies.Add(new HttpCookie("CheckCode", checkCode));
return checkCode;
}
private void CreateCheckCodeImage(string checkCode)
{
if(checkCode == null || checkCode.Trim() == String.Empty)
return;
System.Drawing.Bitmap
Ïà¹ØÎĵµ£º
C#ÓëFlash½»»¥ £¨×ª×ÔСÀÚÔÚÏߣ©
C#ÓëFlash½»»¥
ǰ¶ÎÈÕ×Ó¹«Ë¾ÒªÇó×öÒ»¸öC#ÓëFlash½»»¥µÄ¶«Î÷£¬ÓÃÀ´C#Óë¶ÌÐÅèͨѶ½«Êý¾Ý´«µ½FlashÉÏÏÔʾÓë²Ù×÷µÄÓ¦Óá£
µÚÒ»²½C#Ìí¼Ó×é¼þ
´ò¿ªVS2005-¹¤¾ß-Ñ¡Ôñ¹¤¾ßÏäÏî-COM×é¼þ-Ñ¡ÔñShockwave Flash Object-È·¶¨
Ìí¼ÓºÃ×é¼þÍù³¡¾°ÉÏÍÏ·Å£¬Èç¹ûÌáʾע²áÐèÇó×¢²á
c# ×¢²á¿Ø¼þ-ÔÚÔËÐÐÊä ......
ÓкܾÃÒ»¶Îʱ¼äÎÒµÄBLOGÉÏûÓгöÏÖAJAXÏà¹ØÑ¶Ï¢ÁË£¬Ö÷Òªµ±È»ÊÇÒòΪ¾ø´ó²¿·ÖµÄÖØÐͼ·Åµ½ÁËSilverlightÉíÉÏ(¿ÉÔ¤ÆÚµÄδÀ´Ó¦¸ÃÒ²»áÊÇÈç´Ë)¡£
µ«ÓÉÓÚ¹¤×÷ÉϵÄÐèÒª£¬×î½ü»¹ÊÇ»ØÍ·¿´ÁËһϼ´½«ÍƳöµÄASP.NET Ajax Library...£¬Ë³±ãÕÒÁËÒ»ÏÂÍøÂçÉϵÄѶϢ£¬¿´Õâ¸öÌ¬ÊÆÎÒ²ÂÏëÓ¦¸Ã²»ÉÙASP.NET¿ª·¢ÈËÔ±ºöÂÔµôÁËÕâ¸öÆäʵÒѾbet ......
/// <summary>
/// ±È½ÏÁ½·ùͼƬÊÇ·ñÒ»Ö£¨Ê¹ÓÃMarshal.ReadByte·½Ê½£©
/// </summary>
/// <param name="bitmap1">ͼƬ1</param>
/// <param name="bitmap2">ͼƬ2</param>
/// <returns>Èç¹ûÁ½·ùͼƬÏàͬ£¬·µ»Ø0£»Èç¹ûͼƬ1СÓÚͼƬ2£¬·µ»ØÐ¡ÓÚ0µÄÖµ£»Èç¹ûͼƬ1´óÓÚÍ¼Æ ......
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;
namespace ½«Ã¶¾Ù×÷Ϊ¼üÖµµÄÐÎʽ´æ´¢
{
enum Myenum
{
First=3,
Second ......
×Ö·û´®µÄ¿í¶È×ÔÊÊÓ¦ÈÝÆ÷
Graphics g = Graphics.fromImage(new Bitmap(1, 1));
SizeF size = g.MeasureString(lblTitle.Text, new Font("ËÎÌå", 24 * 0.0625F, FontStyle.Bold));
float oldSize=(800*0.0625F);//1px=0.0625em
float newSize = (0.75F/size.Width )* oldSize;
size.Width µÄµ¥ ......