資料類型轉換類

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;        }    }}