Asp.net 2.0中常用方法整理

 有时整理一下，自己写过的代码也又点好处，一是可以回顾一下，二是分类整理在一起也方便下次再使用。下面是我整理的一些asp.net 2.0中可能常要用的代码，大家可以把它封装在一个类中这样用起来更方便。

 /**//// <summary>
    /// 一些常用的Js调用
    /// </summary>
    public class Jscript
    {
        /**//// <summary>
        /// 弹出JavaScript小窗口
        /// </summary>
        /// <param name="js">窗口信息</param>
        public static void Alert(string message)
        {
            #region
            string js = @"<Script language='JavaScript'>
                    alert('" + message + "');</Script>";
            HttpContext.Current.Response.Write(js);
            #endregion
        }

        /**//// <summary>
        /// 弹出消息框并且转向到新的URL
        /// </summary>
        /// <param name="message">消息内容</param>
        /// <param name="toURL">连接地址</param>
        public static void AlertAndRedirect(string message, string toURL)
        {
            #region
            string js = "<script language=javascript>alert('{0}');window.location.replace('{1}')</script>";
            HttpContext.Current.Response.Write(string.Format(js, message, toURL));
            #endregion
        }
        
        /**//// <summary>
        /// 回到历史页面
        /// </summary>
        /// <param name="value">-1/1</param>
        public static void GoHistory(int value)
        {
            #region
            string js = @"<Script language='JavaScript'>
                    history.go({0});  
                  </Script>";
            HttpContext.Current.Response.Write(string.Format(js, value));
            #endregion
        }

        /**//// <summary>
        /// 关闭当前窗口
        /// </summary>
        public static void CloseWindow()
        {
            #region
            string js = @"<Script language='JavaScript'>
                    parent.opener=null;window.close();  
                  </Script>";
            HttpContext.Current.Response.Write(js);
            HttpContext.Current.Response.End();
            #endregion
        }

        /**//// <summary>
        /// 刷新父窗口
        /// </summary>
        public static void RefreshParent(string url)
        {
            #region
            string js = @"<Script language='JavaScript'>
                    window.opener.location.href='"+url+"';window.close();</Script>";
            HttpContext.Current.Response.Write(js);
            #endregion
        }

       
        /**//// <summary>
        /// 刷新打开窗口
        /// </summary>
        public static void RefreshOpener()
        {
            #region
            string js = @"<Script language='JavaScript'>
                    opener.location.reload();
                  </Script>";
            HttpContext.Current.Response.Write(js);
            #endregion
        }


        /**//// <summary>
        /// 打开指定大小的新窗体
        /// </summary>
        /// <param name="url">地址</param>
        /// <param name="width">宽</param>
        /// <param name="heigth">高</param>
        /// <param name="top">头位置</param>
        /// <param name="left">左位置</param>
        public static void OpenWebFormSize(string url, int width,int heigth,int top,int left)
        {
            #region
            string js = @"<Script language='JavaScript'>window.open('" + url + @"','','height=" + heigth + ",width=" + width + ",top="+top+",left="+left+",location=no,menubar=no,resizable=yes,scrollbars=yes,status=yes,titlebar=no,toolbar=no,directories=no');</Script>";

            HttpContext.Current.Response.Write(js);
            #endregion
        }
       
        
        /**//// <summary>
        /// 转向Url制定的页面
        /// </summary>
        /// <param name="url">连接地址</param>
        public static void JavaScriptLocationHref(string url)
        {
            #region
            string js = @"<Script language='JavaScript'>
                    window.location.replace('{0}');
                  </Script>";
            js = string.Format(js, url);
            HttpContext.Current.Response.Write(js);
            #endregion
        }

        /**//// <summary>
        /// 打开指定大小位置的模式对话框
        /// </summary>
        /// <param name="webFormUrl">连接地址</param>
        /// <param name="width">宽</param>
        /// <param name="height">高</param>
        /// <param name="top">距离上位置</param>
        /// <param name="left">距离左位置</param>
        public static void ShowModalDialogWindow(string webFormUrl, int width, int height, int top, int left)
        {
            #region
            string features = "dialogWidth:" + width.ToString() + "px"
                + ";dialogHeight:" + height.ToString() + "px"
                + ";dialogLeft:" + left.ToString() + "px"
                + ";dialogTop:" + top.ToString() + "px"
                + ";center:yes;help=no;resizable:no;status:no;scroll=yes";
            ShowModalDialogWindow(webFormUrl, features);
            #endregion
        }

        public static void ShowModalDialogWindow(string webFormUrl, string features)
        {
            string js = ShowModalDialogJavascript(webFormUrl, features);
            HttpContext.Current.Response.Write(js);
        }

        public static string ShowModalDialogJavascript(string webFormUrl, string features)
        {
            #region
            string js = @"<script language=javascript>                            
                            showModalDialog('" + webFormUrl + "','','" + features + "');</script>";
            return js;
            #endregion
        }        

    }

 

public  class CommFun
    {
       /**//// <summary>
       /// 过滤输入的信息
       /// </summary>
       /// <param name="text">要过滤的字符串</param>
       /// <param name="maxLength">最大长度</param>
       /// <returns></returns>
       public static string InputText(string text, int maxLength)
       {
        #region
           text = text.Trim();
           if (string.IsNullOrEmpty(text))
               return string.Empty;
           if (text.Length > maxLength)
               text = text.Substring(0, maxLength);
           text = Regex.Replace(text, "[\\s]{2,}", " ");    //two or more spaces
           text = Regex.Replace(text, "(<[b|B][r|R]/*>)+|(<[p|P](.|\\n)*?>)", "\n");    //<br>
           text = Regex.Replace(text, "(\\s*&[n|N][b|B][s|S][p|P];\\s*)+", " ");    //&nbsp;
           text = Regex.Replace(text, "<(.|\\n)*?>", string.Empty);    //any other tags
           text = text.Replace("'", "''");
           return text;
        #endregion
       }

       /**//// <summary>
       /// 截取字符串函数
       /// </summary>
       /// <param name="str">所要截取的字符串</param>
       /// <param name="num">截取字符串的长度</param>
       /// <returns></returns>
       static public string GetSubString(string str, int num)
       {
           #region
           return (str.Length > num) ? str.Substring(0, num) + "" : str;
           #endregion
       }
       //特殊字符的转换
       public static string Encode(string str)
       {
           #region
           str = str.Replace("'", "＇");
           str = str.Replace("\"", "&quot;");
           str = str.Replace("<", "&lt;");
           str = str.Replace(">", "&gt;");
           return str;
           #endregion
       }
       public static string Decode(string str)
       {
           #region
           str = str.Replace("&gt;", ">");
           str = str.Replace("&lt;", "<");
           str = str.Replace("&nbsp;", " ");
           str = str.Replace("&quot;", "\"");
           return str;
           #endregion
       }
       //字符传的转换 用在查询 登陆时 防止恶意的盗取密码
       public static string TBCode(string strtb)
       {
           #region
           strtb = strtb.Replace("!", "");
           strtb = strtb.Replace("@", "");
           strtb = strtb.Replace("#", "");
           strtb = strtb.Replace("$", "");
           strtb = strtb.Replace("%", "");
           strtb = strtb.Replace("^", "");
           strtb = strtb.Replace("&", "");
           strtb = strtb.Replace("*", "");
           strtb = strtb.Replace("(", "");
           strtb = strtb.Replace(")", "");
           strtb = strtb.Replace("_", "");
           strtb = strtb.Replace("+", "");
           strtb = strtb.Replace("|", "");
           strtb = strtb.Replace("?", "");
           strtb = strtb.Replace("/", "");
           strtb = strtb.Replace(".", "");
           strtb = strtb.Replace(">", "");
           strtb = strtb.Replace("<", "");
           strtb = strtb.Replace("{", "");
           strtb = strtb.Replace("}", "");
           strtb = strtb.Replace("[", "");
           strtb = strtb.Replace("]", "");
           strtb = strtb.Replace("-", "");
           strtb = strtb.Replace("=", "");
           strtb = strtb.Replace(",", "");
           return strtb;
           #endregion
       }

       
        /**//// <summary>
        /// 获取汉字第一个拼音
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        static public string getSpells(string input)
        {
            #region
            int len = input.Length;
            string reVal = "";
            for (int i = 0; i < len; i++)
            {
                reVal += getSpell(input.Substring(i, 1));
            }
            return reVal;
            #endregion
        }

        static public string getSpell(string cn)
        {
            #region
            byte[] arrCN = Encoding.Default.GetBytes(cn);
            if (arrCN.Length > 1)
            {
                int area = (short)arrCN[0];
                int pos = (short)arrCN[1];
                int code = (area << 8) + pos;
                int[] areacode = { 45217, 45253, 45761, 46318, 46826, 47010, 47297, 47614, 48119, 48119, 49062, 49324, 49896, 50371, 50614, 50622, 50906, 51387, 51446, 52218, 52698, 52698, 52698, 52980, 53689, 54481 };
                for (int i = 0; i < 26; i++)
                {
                    int max = 55290;
                    if (i != 25) max = areacode[i + 1];
                    if (areacode[i] <= code && code < max)
                    {
                        return Encoding.Default.GetString(new byte[] { (byte)(65 + i) });
                    }
                }
                return "?";
            }
            else return cn;
            #endregion
        }


        /**//// <summary>
        /// 半角转全角
        /// </summary>
        /// <param name="BJstr"></param>
        /// <returns></returns>
        static public string GetQuanJiao(string BJstr)
        {
            #region
            char[] c = BJstr.ToCharArray();
            for (int i = 0; i < c.Length; i++)
            {
                byte[] b = System.Text.Encoding.Unicode.GetBytes(c, i, 1);
                if (b.Length == 2)
                {
                    if (b[1] == 0)
                    {
                        b[0] = (byte)(b[0] - 32);
                        b[1] = 255;
                        c[i] = System.Text.Encoding.Unicode.GetChars(b)[0];
                    }
                }
            }

            string strNew = new string(c);
            return strNew;

            #endregion
        }

        /**//// <summary>
        /// 全角转半角
        /// </summary>
        /// <param name="QJstr"></param>
        /// <returns></returns>
        static public string GetBanJiao(string QJstr)
        {
            #region
            char[] c = QJstr.ToCharArray();
            for (int i = 0; i < c.Length; i++)
            {
                byte[] b = System.Text.Encoding.Unicode.GetBytes(c, i, 1);
                if (b.Length == 2)
                {
                    if (b[1] == 255)
                    {
                        b[0] = (byte)(b[0] + 32);
                        b[1] = 0;
                        c[i] = System.Text.Encoding.Unicode.GetChars(b)[0];
                    }
                }
            }
            string strNew = new string(c);
            return strNew;
            #endregion
        }

        /**//// <summary>
        /// 生成随机数
        /// </summary>
        /// <returns></returns>
        static private string GenerateCheckCode()
        {
            #region
            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();
            }

            System.Web.HttpContext.Current.Response.Cookies.Add(new HttpCookie("CheckCode", checkCode));

            return checkCode;
            #endregion
        }


        /**//// <summary>
        /// 生成验证码图片
        /// </summary>
        public void CreateCheckCodeImage()
        {
            #region
            string checkCode = GenerateCheckCode();
            if (checkCode == null || checkCode.Trim() == String.Empty)
                return;

            System.Drawing.Bitmap image = new System.Drawing.Bitmap((int)Math.Ceiling((checkCode.Length * 12.5)), 22);
            Graphics g = Graphics.FromImage(image);

            try
            {
                //生成随机生成器
                Random random = new Random();

                //清空图片背景色
                g.Clear(Color.White);

                //画图片的背景噪音线
                for (int i = 0; i < 25; i++)
                {
                    int x1 = random.Next(image.Width);
                    int x2 = random.Next(image.Width);
                    int y1 = random.Next(image.Height);
                    int y2 = random.Next(image.Height);

                    g.DrawLine(new Pen(Color.Silver), x1, y1, x2, y2);
                }

                Font font = new System.Drawing.Font("Arial", 12, (System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic));
                System.Drawing.Drawing2D.LinearGradientBrush brush = new System.Drawing.Drawing2D.LinearGradientBrush(new Rectangle(0, 0, image.Width, image.Height), Color.Blue, Color.DarkRed, 1.2f, true);
                g.DrawString(checkCode, font, brush, 2, 2);

                //画图片的前景噪音点
                for (int i = 0; i < 100; i++)
                {
                    int x = random.Next(image.Width);
                    int y = random.Next(image.Height);

                    image.SetPixel(x, y, Color.FromArgb(random.Next()));
                }

                //画图片的边框线
                g.DrawRectangle(new Pen(Color.Silver), 0, 0, image.Width - 1, image.Height - 1);

                System.IO.MemoryStream ms = new System.IO.MemoryStream();
                image.Save(ms, System.Drawing.Imaging.ImageFormat.Gif);
                HttpContext.Current.Response.ClearContent();
                HttpContext.Current.Response.ContentType = "image/Gif";
                HttpContext.Current.Response.BinaryWrite(ms.ToArray());
            }
            finally
            {
                g.Dispose();
                image.Dispose();
            }
            #endregion
        }
        /**//// <summary>
        /// 获取文本框中输入内容
        /// </summary>
        /// <param name="ctrl">TextBox控件ID</param>
        /// <returns></returns>
        static public string GetText(TextBox ctrl)
        {
            #region
            return ctrl.Text.Trim().Replace("'", "\"");
            #endregion
        }

        /**//// <summary>
        /// 清除文本框内容
        /// </summary>
        /// <param name="list">TextBox控件数组</param>
        static public void ClearText(TextBox[] list)
        {
            #region
            foreach (TextBox ctrl in list)
                ctrl.Text = null;
            #endregion
        }

        加密的类型#region 加密的类型
        /**//// <summary>
        /// 加密的类型
        /// </summary>
        public enum PasswordType
        {
            SHA1,
            MD5
        }
        #endregion


        /**//// <summary>
        /// 字符串加密
        /// </summary>
        /// <param name="PasswordString">要加密的字符串</param>
        /// <param name="PasswordFormat">要加密的类别</param>
        /// <returns></returns>
        static public string EncryptPassword(string PasswordString, string PasswordFormat)
        {
            #region
            switch (PasswordFormat)
            {
                case "SHA1":
                    {
                        PasswordString = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(PasswordString, "SHA1");
                        break;
                    }
                case "MD5":
                    {
                        PasswordString = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(PasswordString, "MD5");
                        break;
                    }
                default:
                    {
                       // passWord = string.Empty;
                        break;
                    }
            }
            return PasswordString;
            #endregion
        }
        
    }