[页面辅助] 最新的 PageValidate 类 （转载）

代码
using  System;
using System.Data;
using System.Configuration;
using System.Web;

using System.Text.RegularExpressions;

/// <summary>
/// 开发人：苏飞
/// 开发时间：2009-09-11
/// 主要功能：判断页面各个控件的输入
/// </summary>
namespace BaseFunction
{
    public class PageValidate
    {
        public PageValidate()
        {
            //
            // TODO: 在此处添加构造函数逻辑
            //
        }

        private static Regex RegNumber = new Regex("^[0-9]+$");
        private static Regex RegNumberSign = new Regex("^[+-]?[0-9]+$");
        private static Regex RegDecimal = new Regex("^[0-9]+[.]?[0-9]+$");
        private static Regex RegDecimalSign = new Regex("^[+-]?[0-9]+[.]?[0-9]+$"); //等价于^[+-]?\d+[.]?\d+$
        private static Regex RegEmail = new Regex("^[\\w-]+@[\\w-]+\\.(com|net|org|edu|mil|tv|biz|info)$");//w 英文字母或数字的字符串，和 [a-zA-Z0-9] 语法一样
        private static Regex RegCHZN = new Regex("[\u4e00-\u9fa5]");
        public static Regex RegMobile = new Regex("^1(3[4-9]|5[012789]|8[7-8])\\d{8}$");

        //验证联通手机号码
        public static Regex RegUnicom = new Regex("^1(3[012]|5[56]|8[5-6])\\d{8}$");
        //验证联通固话

        #region 日期检查
        /// <summary>
        /// Format 的摘要说明。
        /// </summary>
        public string IsDateTime(string Record)
        {
            if (Convert.ToDateTime(Record).ToString("yyyy-MM-dd") == DateTime.MaxValue.ToString("yyyy-MM-dd") || Convert.ToDateTime(Record).ToString("yyyy-MM-dd") == DateTime.MinValue.ToString("yyyy-MM-dd") || Record == "" || Convert.ToDateTime(Record).ToString("yyyy-MM-dd") == "1900-01-01")
                return "—";
            else
                return Convert.ToDateTime(Record).ToString("yyyy-M-dd");
        }

        #endregion

        #region 数字字符串检查

        /// <summary>
        /// 是否数字字符串
        /// </summary>
        /// <param name="inputData">输入字符串</param>
        /// <returns></returns>
        public static bool IsNumber(string inputData)
        {
            Match m = RegNumber.Match(inputData);
            return m.Success;
        }
        /// <summary>
        /// 是否数字字符串 可带正负号
        /// </summary>
        /// <param name="inputData">输入字符串</param>
        /// <returns></returns>
        public static bool IsNumberSign(string inputData)
        {
            Match m = RegNumberSign.Match(inputData);
            return m.Success;
        }
        /// <summary>
        /// 是否是浮点数
        /// </summary>
        /// <param name="inputData">输入字符串</param>
        /// <returns></returns>
        public static bool IsDecimal(string inputData)
        {
            Match m = RegDecimal.Match(inputData);
            return m.Success;
        }
        /// <summary>
        /// 是否是浮点数 可带正负号
        /// </summary>
        /// <param name="inputData">输入字符串</param>
        /// <returns></returns>
        public static bool IsDecimalSign(string inputData)
        {
            Match m = RegDecimalSign.Match(inputData);
            return m.Success;
        }

        #endregion

        #region 中文检测

        /// <summary>
        /// 检测是否有中文字符
        /// </summary>
        /// <param name="inputData"></param>
        /// <returns></returns>
        public static bool IsHasCHZN(string inputData)
        {
            Match m = RegCHZN.Match(inputData);
            return m.Success;
        }

        #endregion

        #region 邮件地址
        /// <summary>
        /// 是否是浮点数 可带正负号
        /// </summary>
        /// <param name="inputData">输入字符串</param>
        /// <returns></returns>
        public static bool IsEmail(string inputData)
        {
            Match m = RegEmail.Match(inputData);
            return m.Success;
        }

        /// <summary>
        /// 验证是否为移动号码
        /// </summary>
        /// <param name="number">手机号</param>
        /// <returns>Boolean</returns>
        public static Boolean isMobile(string number)
        {
            Match m = RegMobile.Match(number);
            return m.Success;
        }
        /// <summary>
        /// 验证是否为联通号码
        /// </summary>
        /// <param name="number">手机号</param>
        /// <returns></returns>
        public static Boolean IsUnicom(string number)
        {
            Match m = RegUnicom.Match(number);
            return m.Success;
        }
        #endregion

        #region 其他

        /// <summary>
        /// 检查字符串最大长度，返回指定长度的串
        /// </summary>
        /// <param name="sqlInput">输入字符串</param>
        /// <param name="maxLength">最大长度</param>
        /// <returns></returns>
        public static string SqlText(string sqlInput, int maxLength)
        {
            if (sqlInput != null && sqlInput != string.Empty)
            {
                sqlInput = sqlInput.Trim();
                if (sqlInput.Length > maxLength)//按最大长度截取字符串
                    sqlInput = sqlInput.Substring(, maxLength);
            }
            return sqlInput;
        }

        #endregion

    }
}