验证工具类以及基本验证方法

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把下面的代码放在一个类中，叫"Utility.cs"

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Text.RegularExpressions;
using System.Text;
using System.Web.UI.WebControls;

namespace Tool
{
 public class Utility { private static Regex RegPhone = new Regex("^[0-9]+[-]?[0-9]+[-]?[0-9]$"); private static Regex RegNumber = new Regex("^[0-9]+$"); 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]");

/// <summary> /// 验证文本数据是不是为空 /// </summary> /// <param name="o">对象</param> /// <returns>布尔型</returns> public static bool CheckFormTextNotEmpty(object o) { if (o == null || o.ToString().Trim().Length == 0) { return false; } else { return true; } }

/// <summary> /// 判断对象是否为Int32类型的数字 /// </summary> /// <param name="Expression"></param> /// <returns></returns> public static bool IsNumeric(object Expression) { if (Expression != null) { string str = Expression.ToString(); if (str.Length > 0 && str.Length <= 11 && Regex.IsMatch(str, @"^[-]?[0-9]*[.]?[0-9]*$")) { if ((str.Length < 10) || (str.Length == 10 && str[0] == '1') || (str.Length == 11 && str[0] == '-' && str[1] == '1')) { return true; } } } return false;

}

/// <summary> /// 从Session里面获取UserInfo /// </summary> /// <returns></returns> public static Model.UserInfo GetUserFromSession() { object o = System.Web.HttpContext.Current.Session["SafeSystemUserInfo"]; if (o != null) return (o as Model.UserInfo); else return null; }

/// <summary> /// 从Session里面移除UserInfo /// </summary> /// <returns></returns> public static void RemoveUserFromSession() { System.Web.HttpContext.Current.Session["SafeSystemUserInfo"]=""; }

/// <summary> /// 保存员工信息到Session /// </summary> /// <param name="staff"></param> public static void SavaUserInSession(Model.UserInfo user) { System.Web.HttpContext.Current.Session["SafeSystemUserInfo"] = user; }

#region 数字字符串检查 public static bool IsPhone(string inputData) { Match m = RegPhone.Match(inputData); return m.Success; } /// <summary> /// 检查Request查询字符串的键值，是否是数字，最大长度限制 /// </summary> /// <param name="req">Request</param> /// <param name="inputKey">Request的键值</param> /// <param name="maxLen">最大长度</param> /// <returns>返回Request查询字符串</returns> public static string FetchInputDigit(HttpRequest req, string inputKey, int maxLen) { string retVal = string.Empty; if(inputKey != null && inputKey != string.Empty) { retVal = req.QueryString[inputKey]; if(null == retVal) retVal = req.Form[inputKey]; if(null != retVal) { retVal = SqlText(retVal, maxLen); if(!IsNumber(retVal)) retVal = string.Empty; } } if(retVal == null) retVal = string.Empty; return retVal; } /// <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; }

/// <summary> /// 验证输入大小是否超过了数据库允许的大小 /// </summary> /// <param name="input">输入的内容</param> /// <param name="maxlength">最大长度</param> /// <returns></returns> public static bool IsGreaterThanStandardLength(string input, int maxlength) { if (input.Length >= maxlength) { return false; } else { return true; } }

#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; }

#endregion

#region 日期格式判断 /// <summary> /// 日期格式字符串判断 /// </summary> /// <param name="str"></param> /// <returns></returns> public static bool IsDateTime(string str) { try { if (!string.IsNullOrEmpty(str)) { DateTime.Parse(str); return true; } else { return false; } } catch

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