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/// <summary> /// <summary>
/// 默認(rèn):字符補(bǔ)在右邊 /// </summary> /// <param name="str"></param> /// <param name="width"></param> /// <param name="compart"></param> /// <returns></returns> public static string FormatStr(string str, int width, string compart) { return FormatStr(str, width, compart, false); } /// <summary> /// 格式化，返回定長字串 /// </summary> /// <param name="str"></param> /// <param name="width">字串寬度</param> /// <param name="compart">不夠?qū)挾葧r(shí)補(bǔ)上的字符</param> /// <param name="isLeft">左對(duì)齊？default:true 補(bǔ)在右邊 </param> /// <returns></returns> public static string FormatStr(string str, int width, string compart, bool isLeft) { int byteCount = Encoding.Default.GetByteCount(str); string text = ""; for (int i = 0; i < (width - byteCount); i++) { text = text + compart; } if (isLeft) { return (text + str); } return (str + text); } /// <summary> /// 根據(jù)文件擴(kuò)展名取得文件類型 /// </summary> /// <param name="extend"></param> /// <returns></returns> private static string getFileType(string extend) { switch (extend.ToLower()) { case ".jpg": case ".jpeg": return "image/pjpeg"; case ".gif": return "image/gif"; case ".png": return "image/x-png"; case ".bmp": return "image/bmp"; case ".txt": return "text/plain"; case ".htm": case ".html": return "text/html"; } return ""; } /// <summary> /// 字符串編碼 /// </summary> /// <param name="inputData"></param> /// <returns></returns> public static string HtmlEncode(string inputData) { return HttpUtility.HtmlEncode(inputData); } /// <summary> /// 檢查郵件地址 /// </summary> /// <param name="inputData">輸入字符串</param> /// <returns></returns> public static bool IsEmail(string inputData) { return RegEmail.Match(inputData).Success; } /// <summary> /// 是否為空 /// </summary> /// <param name="key">目標(biāo)物件 </param> /// <returns></returns> public static bool IsEmpty(object key) { return !ToType(key); } /// <summary> /// 檢測(cè)是否有中文字符 /// </summary> /// <param name="inputData"></param> /// <returns></returns> public static bool IsHasCHZN(string inputData) { return RegCHZN.Match(inputData).Success; } /// <summary> /// 是否為圖片類型 默認(rèn)值： ".jpg",".gif",".bmp",".png" /// </summary> /// <param name="imgType">File.ContentType</param> /// <returns></returns> public static bool IsImage(string imgType) { return IsImage(imgType, new string[] { ".jpg", ".gif", ".bmp", ".png" }); } /// <summary> /// 是否為圖片類型 /// </summary> /// <param name="imgType">File.ContentType</param> /// <param name="allowType">允許的文件擴(kuò)展名 eg: ".jpg",".gif"</param> /// <returns></returns> public static bool IsImage(string imgType, params string[] allowType) { imgType = imgType.ToLower(); for (int i = 0; i < allowType.Length; i++) { if (imgType == getFileType(allowType[i])) { return true; } } return false; } /// <summary> /// 是否數(shù)字字符串 [0-9] /// </summary> /// <param name="inputData">輸入字符串</param> /// <returns></returns> public static bool IsNumber(string inputData) { return RegNumber.Match(inputData).Success; } /// <summary> /// 是否數(shù)字字符串 可帶正負(fù)號(hào) [0-9] /// </summary> /// <param name="inputData">輸入字符串</param> /// <returns></returns> public static bool IsNumberSign(string inputData) { return RegNumberSign.Match(inputData).Success; } /// <summary> /// 檢查字符串最大長度，返回指定長度的串 /// </summary> /// <param name="sqlInput"></param> /// <param name="maxLength"></param> /// <returns></returns> public static string SqlText(string sqlInput, int maxLength) { if ((sqlInput != null) && (sqlInput != string.Empty)) { sqlInput = sqlInput.Trim(); if (sqlInput.Length > maxLength) { sqlInput = sqlInput.Substring(0, maxLength); } } return sqlInput; } /// <summary> /// 檢查從頁面輸入的字符串，防止SQL注入攻擊 /// </summary> /// <param name="Sour"></param> /// <returns></returns> public static string CheckString(string Sour) { return Sour.Replace("'", "''").Replace("--", "- - "); } /// <summary> /// 比較兩個(gè) double 值 的大小返回 1|0|-1 /// </summary> /// <param name="a"></param> /// <param name="b"></param> /// <returns></returns> public static int CompareDouble(double a, double b) { if (Math.Abs((double) (a - b)) <= 1E-06) { return 0; } if (a > b) { return 1; } return -1; } /// <summary> /// if true then return 1 else return 0 /// </summary> /// <param name="isTrue"></param> /// <returns></returns> public static string ConvertBoolToString(bool isTrue) { if (isTrue) { return "1"; } return "0"; } /// <summary> /// 將空值轉(zhuǎn)換為"0" /// </summary> /// <param name="key"></param> /// <returns></returns> public static string ConvertEmptyTo0(object key) { if (object.Equals(key, null)) { return "0"; } if (key.ToString() == "") { return "0"; } return key.ToString(); } /// <summary> /// if Value is null or "" ,return "0" /// </summary> /// <param name="key"></param> /// <returns></returns> public static string ConvertEmptyTo0(string key) { if ((key != null) && (key != "")) { return key; } return "0"; } /// <summary> /// if 1 then return true else return false /// </summary> /// <param name="key"></param> /// <returns></returns> public static bool ConvertStringToBool(string key) { return (key == "1"); } /// <summary> /// 返回有兩位小數(shù)的字串,eg: 1,234,567.89 為0則返回空 /// </summary> /// <param name="num"></param> /// <returns></returns> public static string FormatDouble(double num) { if (num == 0) { return ""; } return string.Format("{0:N2}", num); } /// <summary> /// 返回有兩位小數(shù)的字串 eg: 1,234,567.89 為0則返回 0.00,且無千位分隔符 /// </summary> /// <param name="num"></param> /// <param name="isZeroToEmpty">是否將"0"轉(zhuǎn)成"",Default:true</param> /// <returns></returns> public static string FormatDouble(object num, bool isZeroToEmpty) { if (isZeroToEmpty) { return FormatDouble(num); } try { return string.Format("{0:F2}", ToDouble(num)); } catch { return ToString(num); } } /// <summary> /// 返回有兩位小數(shù)的字串 eg: 1,234,567.89 為0則返回空 /// </summary> /// <param name="num"></param> /// <returns></returns> public static string FormatDouble(object num) { try { return FormatDouble(ToDouble(num)); } catch { return ToString(num); } } /// <summary>
/// /// </summary> /// <param name="Sour"></param> /// <returns></returns> private static string CheckDate2(string Sour) { string text = ""; if (Sour == "") { return "日期不能為空"; } if (Sour.CompareTo(DateTime.Now.ToString("yyyy-MM-dd")) < 0) { return "日期不能小于當(dāng)前日期"; } Match match = new Regex("^([0-9]{4})-([0-9]{2})-([0-9]{2})$").Match(Sour); if (match.Success) { int year = Convert.ToInt32(match.Groups[1].Value); int month = Convert.ToInt32(match.Groups[2].Value); int day = Convert.ToInt16(match.Groups[3].Value); try { new DateTime(year, month, day); } catch { text = "日期格式不正確,應(yīng)為【2002-09-06】"; } return text; } return "日期格式不正確,應(yīng)為【2002-09-06】"; } /// <summary> /// 是否為數(shù)字,一組數(shù)字和對(duì)應(yīng)的一組錯(cuò)誤信息 /// </summary> /// <param name="values">Values</param> /// <param name="texts">錯(cuò)誤信息</param> /// <returns></returns> public static string CheckDouble(string[] values, string[] texts) { string text = ""; int index = 0; for (index = 0; index < values.Length; index++) { if (!IsDecimal(values[index])) { text = text + texts[index] + "必須為數(shù)字//n"; } } return text; } /// <summary> /// 簡(jiǎn)體中文環(huán)境下檢查日期格式是否正確 接受 8位或10位的字串，其它位皆為 false /// </summary> /// <param name="sour">20060514 or 2005-05-14 等 8位或10位日期字串</param> /// <returns>Return Value</returns> public static bool RegDateCHS(string sour) { string text = ""; if (sour.Length == 8) { text = sour.Substring(0, 4) + "-" + sour.Substring(4, 2) + "-" + sour.Substring(6, 2); } else if (sour.Length == 10) { text = sour.Substring(0, 4) + "-" + sour.Substring(5, 2) + "-" + sour.Substring(8, 2); } if (text == "") { return false; } try { Convert.ToDateTime(text); return true; } catch { return false; } } /// <summary> /// 是否是浮點(diǎn)數(shù) /// </summary> /// <param name="inputData">輸入字符串</param> /// <returns></returns> public static bool IsDecimal(string inputData) { return RegDecimal.Match(inputData).Success; } /// <summary> /// 是否是浮點(diǎn)數(shù) 可帶正負(fù)號(hào) /// </summary> /// <param name="inputData"></param> /// <returns></returns> public static bool IsDecimalSign(string inputData) { return RegDecimalSign.Match(inputData).Success; } /// <summary> /// 比較日期，必須為10位 2002/09/15格式 /// </summary> /// <param name="Sour">待測(cè)試的日期字串 </param> /// <returns>ture or false</returns> private static bool RegDate(string Sour) { Match match = new Regex(@"^([0-9]{4})//([0-9]{2})//([0-9]{2})$").Match(Sour); bool flag = true; if (match.Success) { int year = Convert.ToInt32(match.Groups[1].Value); int month = Convert.ToInt32(match.Groups[2].Value); int day = Convert.ToInt16(match.Groups[3].Value); try { new DateTime(year, month, day); } catch { flag = false; } return flag; } return false; } /// <summary> /// 如果為空，return false, else return true; /// </summary> /// <param name="key"></param> /// <returns></returns> private static bool ToType(object key) { if (key == null) { return false; } if (key == DBNull.Value) { return false; } if (key.ToString() == string.Empty) { return false; } if (key.ToString().Trim() == "") { return false; } if (key.ToString().ToLower() == " ") { return false; } return true; } /// <summary> /// 轉(zhuǎn)換為String /// </summary> /// <param name="key"></param> /// <returns></returns> public static string ToString(object key) { if (ToType(key)) { return key.ToString(); } return ""; } #region // Fields
private static Regex RegDecimal; private static Regex RegCHZN; private static Regex RegDecimalSign; private static Regex RegEmail; private static Regex RegNumber; private static Regex RegNumberSign; #endregion #region // Methods /// <summary> /// 構(gòu)造函數(shù) /// </summary> public CheckData() { // // TODO: 在此處添加構(gòu)造函數(shù)邏輯 // } static CheckData() { RegNumber = new Regex("^[0-9]+$"); RegNumberSign = new Regex("^[+-]?[0-9]+$"); RegDecimal = new Regex("^[0-9]+[.]?[0-9]*$"); RegDecimalSign = new Regex("^[+-]?[0-9]+[.]?[0-9]*$"); RegEmail = new Regex(@"^[/w-]+@[/w-]+/.(com|cn|net|org|edu|mil|tv|biz|info)$"); RegCHZN = new Regex("[/u4e00-/u9fa5]"); } /// <summary> /// 如果格式正確則返回空，否則返回錯(cuò)誤信息適用于 2006/06/13 格式 /// </summary> /// <param name="Sour">待測(cè)試的日期字串</param> /// <returns></returns> public static string CheckDate(string Sour) { return CheckDate(Sour, true, true); } /// <summary> /// 如果格式正確則返回空，否則返回錯(cuò)誤信息 /// </summary> /// <param name="Sour">待測(cè)試的日期字串</param> /// <param name="IsUpToday">是否必須大于今天</param> /// <param name="IsNotNull">是否不可以為空值</param> /// <returns></returns> public static string CheckDate(string Sour, bool IsUpToday, bool IsNotNull) { if (IsNotNull) { if (Sour == "") { return "日期不能為空"; } } else if (Sour == "") { return ""; } if (IsUpToday && (Sour.CompareTo(DateTime.Now.ToString(@"yyyy//MM//dd")) < 0)) { return "日期不能小于當(dāng)前日期"; } if (!RegDate(Sour)) { return "日期格式不正確,應(yīng)為【2002/09/06】"; } return ""; } /// <summary> /// 如果格式正確則返回空，否則返回錯(cuò)誤信息 /// </summary> /// <param name="Sour">待測(cè)試的日期字串</param> /// <param name="IsUpToday">是否必須大于今天</param> /// <returns></returns> public static string CheckDate(string Sour, bool IsUpToday) { return CheckDate(Sour, IsUpToday, true); } |
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