asp.net資料類型轉換類執行個體

代碼如下

複製代碼

using System; using System.Collections.Generic; using System.Text; using System.Text.RegularExpressions; namespace TypeClass {     public class TypeParse     {         /// <summary>         /// 判斷對象是否為Int32類型的數字         /// </summary>         /// <param name="Expression"></param>         /// <returns></returns>         public static bool IsNumeric(object Expression)         {             if (Expression != null)             {                  int intVal;                  return int.TryParse(Expression.ToString(), out intVal);             }             return false;         }         public static bool IsDouble(object Expression)         {             if (Expression != null)             {                 double doubleVal;                 return double.TryParse(Expression.ToString(), out doubleVal);             }             return false;         }         /// <summary>         /// string型轉換為bool型         /// </summary>         /// <param name="strValue">要轉換的字串</param>         /// <param name="defValue">預設值</param>         /// <returns>轉換後的bool類型結果</returns>         public static bool StrToBool(object Expression, bool defValue)         {             if (Expression != null)             {                 bool boolValue;                 if (bool.TryParse(Expression.ToString(), out boolValue))                     return boolValue;                 else                     return defValue;             }             return defValue;         }         /// <summary>         /// 將對象轉換為Int32類型         /// </summary>         /// <param name="strValue">要轉換的字串</param>         /// <param name="defValue">預設值</param>         /// <returns>轉換後的Int32類型結果</returns>         public static int StrToInt(object Expression, int defValue)         {             if (Expression != null)             {                 int intValue;                 if (int.TryParse(Expression.ToString(), out intValue))                     return intValue;                 else                     return defValue;             }             return defValue;         }         /// <summary>         /// string型轉換為float型         /// </summary>         /// <param name="strValue">要轉換的字串</param>         /// <param name="defValue">預設值</param>         /// <returns>轉換後的float類型結果</returns>         public static float StrToFloat(object strValue, float defValue)         {             if (strValue != null)             {                 float floatValue;                 if (float.TryParse(strValue.ToString(), out floatValue))                     return floatValue;                 else                     return defValue;             }             return defValue;         }         /// <summary>         /// string型轉換為Decimal型         /// </summary>         /// <param name="strValue">要轉換的字串</param>         /// <param name="defValue">預設值</param>         /// <returns>轉換後的Decimal類型結果</returns>         public static Decimal StrToDecimal(object strValue, Decimal defValue)         {             if (strValue != null)             {                 Decimal decimalValue;                 if (Decimal.TryParse(strValue.ToString(), out decimalValue))                     return Math.Round(decimalValue,2);                 else                     return defValue;             }             return defValue;         }         /// <summary>         /// string型轉換為datetime型         /// </summary>         /// <param name="strValue">要轉換的字串</param>         /// <param name="defValue">預設值</param>         /// <returns>轉換後的datetime類型結果</returns>         public static DateTime StrToDateTime(object strValue, DateTime defValue)         {             if (strValue != null)             {                 DateTime DateTimeValue;                 if (DateTime.TryParse(strValue.ToString(), out DateTimeValue))                     return DateTimeValue;                 else                     return defValue;             }             return defValue;         }         /// <summary>         /// 判斷給定的字串數組(strNumber)中的資料是不是都為數值型         /// </summary>         /// <param name="strNumber">要確認的字串數組</param>         /// <returns>是則返加true 不是則返回 false</returns>         public static bool IsNumericArray(string[] strNumber)         {             if (strNumber == null)             {                 return false;             }             if (strNumber.Length < 1)             {                 return false;             }             foreach (string id in strNumber)             {                 if (!IsNumeric(id))                 {                     return false;                 }             }             return true;         }     } }