asp.netC#通用扩展函数之TypeParse 类型转换方便多了

用法：

            var int1 = "2".TryToInt();//转换为int失败返回0            var int2 = "2x".TryToInt();            var int3 = "2".TryToInt(1);//转换为int失败返回1            var int4 = "2x".TryToInt(1);            var d1 = "2".TryToMoney(); //同上            var d2 = "2x".TryToMoney();            var d3 = "2".TryToMoney(1);            var d4 = "2x".TryToMoney(1);            string a = null;            var s1 = a.TryToString();            var s3 = a.TryToString("1");            var d11 = "2".TryToDecimal();            var d22 = "2x".TryToDecimal();            var d33 = "2".TryToDecimal(1);            var d44 = "2x".TryToDecimal(1);            var de1 = "2013-1-1".TryToDate();            var de2 = "x2013-1-1".TryToDate();            var de3 = "x2013-1-1".TryToDate(DateTime.Now);            //json和model转换            var json = new { id = 1 }.ModelToJson();            var model = "{id:1}".JsonToModel<ModelTest>();            //list和dataTable转换            var dt = new List<ModelTest>().ListToDataTable();            var list = dt.DataTableToList<ModelTest>();

代码：

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Web.Script.Serialization;using System.Data;using System.Reflection;using System.Collections;namespace SyntacticSugar{    /// <summary>    /// ** 描述：类型转换    /// ** 创始时间：2015-6-2    /// ** 修改时间：-    /// ** 作者：sunkaixuan    /// ** 使用说明：    /// </summary>    public static class TypeParseExtenions    {        #region 强转成int 如果失败返回 0        /// <summary>        /// 强转成int 如果失败返回 0        /// </summary>        /// <param name="thisValue"></param>        /// <param name="i"></param>        /// <returns></returns>        public static int TryToInt(this object thisValue)        {            int reval = 0;            if (thisValue != null && int.TryParse(thisValue.ToString(), out reval))            {                return reval;            }            return reval;        }        #endregion        #region 强转成int 如果失败返回 errorValue        /// <summary>        /// 强转成int 如果失败返回 errorValue        /// </summary>        /// <param name="thisValue"></param>        /// <param name="i"></param>        /// <returns></returns>        public static int TryToInt(this object thisValue, int errorValue)        {            int reval = 0;            if (thisValue != null && int.TryParse(thisValue.ToString(), out reval))            {                return reval;            }            return errorValue;        }        #endregion        #region 强转成double 如果失败返回 0        /// <summary>        /// 强转成money 如果失败返回 0        /// </summary>        /// <param name="thisValue"></param>        /// <param name="i"></param>        /// <returns></returns>        public static double TryToMoney(this object thisValue)        {            double reval = 0;            if (thisValue != null && double.TryParse(thisValue.ToString(), out reval))            {                return reval;            }            return 0;        }        #endregion        #region 强转成double 如果失败返回 errorValue        /// <summary>        /// 强转成double 如果失败返回 errorValue        /// </summary>        /// <param name="thisValue"></param>        /// <param name="errorValue"></param>        /// <returns></returns>        public static double TryToMoney(this object thisValue, int errorValue)        {            double reval = 0;            if (thisValue != null && double.TryParse(thisValue.ToString(), out reval))            {                return reval;            }            return errorValue;        }        #endregion        #region 强转成string 如果失败返回 ""        /// <summary>        /// 强转成string 如果失败返回 ""        /// </summary>        /// <param name="thisValue"></param>        /// <param name="i"></param>        /// <returns></returns>        public static string TryToString(this object thisValue)        {            if (thisValue != null) return thisValue.ToString().Trim();            return "";        }        #endregion        #region  强转成string 如果失败返回 errorValue        /// <summary>        /// 强转成string 如果失败返回 str        /// </summary>        /// <param name="thisValue"></param>        /// <param name="errorValue"></param>        /// <returns></returns>        public static string TryToString(this object thisValue, string errorValue)        {            if (thisValue != null) return thisValue.ToString().Trim();            return errorValue;        }        #endregion        #region 强转成Decimal 如果失败返回 0        /// <summary>        /// 强转成Decimal 如果失败返回 0        /// </summary>        /// <param name="thisValue"></param>        /// <param name="i"></param>        /// <returns></returns>        public static Decimal TryToDecimal(this object thisValue)        {            Decimal reval = 0;            if (thisValue != null && decimal.TryParse(thisValue.ToString(), out reval))            {                return reval;            }            return 0;        }        #endregion        #region 强转成Decimal 如果失败返回 errorValue        /// <summary>        /// 强转成Decimal 如果失败返回 errorValue        /// </summary>        /// <param name="thisValue"></param>        /// <param name="errorValue"></param>        /// <returns></returns>        public static Decimal TryToDecimal(this object thisValue, int errorValue)        {            Decimal reval = 0;            if (thisValue != null && decimal.TryParse(thisValue.ToString(), out reval))            {                return reval;            }            return errorValue;        }        #endregion        #region 强转成DateTime 如果失败返回 DateTime.MinValue        /// <summary>        /// 强转成DateTime 如果失败返回 DateTime.MinValue        /// </summary>        /// <param name="thisValue"></param>        /// <param name="i"></param>        /// <returns></returns>        public static DateTime TryToDate(this object thisValue)        {            DateTime reval = DateTime.MinValue;            if (thisValue != null && DateTime.TryParse(thisValue.ToString(), out reval))            {                return reval;            }            return reval;        }        #endregion        #region 强转成DateTime 如果失败返回 errorValue        /// <summary>        /// 强转成DateTime 如果失败返回 errorValue        /// </summary>        /// <param name="thisValue"></param>        /// <param name="errorValue"></param>        /// <returns></returns>        public static DateTime TryToDate(this object thisValue, DateTime errorValue)        {            DateTime reval = DateTime.MinValue;            if (thisValue != null && DateTime.TryParse(thisValue.ToString(), out reval))            {                return reval;            }            return errorValue;        }        #endregion        #region json转换        /// <summary>        /// 将json序列化为实体        /// </summary>        /// <typeparam name="TEntity"></typeparam>        /// <param name="json"></param>        /// <returns></returns>        public static TEntity JsonToModel<TEntity>(this string json)        {            javaScriptSerializer jsSerializer = new JavascriptSerializer();            return jsSerializer.Deserialize<TEntity>(json);        }        /// <summary>        /// 将实体序列化为json        /// </summary>        /// <param name="model"></param>        /// <returns></returns>        public static string ModelToJson<T>(this T model)        {            JavaScriptSerializer jsSerializer = new JavaScriptSerialize