type convert

背景#

1. 在开发中，我们会碰到诸如String类型转换为Int等等问题，虽然处理起来简单，但是本着DRY(Don't Repeat Yourself )原则，还是有必要封装处理下；
2. 具体代码：MasterChief
3. Nuget：Install-Package MasterChief.DotNet4.Utilities
4. 欢迎Star，欢迎Issues；

实现代码#

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using System;
using System.ComponentModel;
using System.Data;
using System.Globalization;

namespace MasterChief.DotNet4.Utilities.Common
{
    /// <summary>
    ///     转换帮助类
    /// </summary>
    public static class ConvertHelper
    {
        #region Methods

        /// <summary>
        ///     转换成布尔类型
        /// </summary>
        /// <param name="data">需要转换的object</param>
        /// <param name="defalut">默认数值</param>
        /// <returns>转换返回</returns>
        public static bool ToBooleanOrDefault(this object data, bool defalut = false)
        {
            return data != null && bool.TryParse(data.ToString(), out var result) ? result : defalut;
        }

        /// <summary>
        ///     转换成Byte类型
        /// </summary>
        /// <param name="data">需要转换的object</param>
        /// <param name="defalut">默认数值</param>
        /// <returns>转换返回</returns>
        public static byte ToByteOrDefault(this object data, byte defalut = 0x00)
        {
            return data != null && byte.TryParse(data.ToString(), out var result) ? result : defalut;
        }

        /// <summary>
        ///     转换为农历年
        /// </summary>
        /// <param name="date">日期</param>
        /// <returns>农历年</returns>
        public static string ToChineseDate(this DateTime date)
        {
            var cnDate = new ChineseLunisolarCalendar();
            string[] months = { string.Empty, "正月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "冬月", "腊月" };
            string[] days =
            {
                string.Empty, "初一", "初二", "初三", "初四", "初五", "初六", "初七", "初八", "初九", "初十", "十一", "十二", "十三", "十四", "十五",
                "十六", "十七", "十八", "十九", "廿一", "廿二", "廿三", "廿四", "廿五", "廿六", "廿七", "廿八", "廿九", "三十"
            };
            string[] years =
            {
                string.Empty, "甲子", "乙丑", "丙寅", "丁卯", "戊辰", "己巳", "庚午", "辛未", "壬申", "癸酉", "甲戌", "乙亥", "丙子", "丁丑", "戊寅",
                "己卯", "庚辰", "辛己", "壬午", "癸未", "甲申", "乙酉", "丙戌", "丁亥", "戊子", "己丑", "庚寅", "辛卯", "壬辰", "癸巳", "甲午", "乙未",
                "丙申", "丁酉", "戊戌", "己亥", "庚子", "辛丑", "壬寅", "癸丑", "甲辰", "乙巳", "丙午", "丁未", "戊申", "己酉", "庚戌", "辛亥", "壬子",
                "癸丑", "甲寅", "乙卯", "丙辰", "丁巳", "戊午", "己未", "庚申", "辛酉", "壬戌", "癸亥"
            };
            var year = cnDate.GetYear(date);
            var yearCn = years[cnDate.GetSexagenaryYear(date)];
            int month = cnDate.GetMonth(date),
                day = cnDate.GetDayOfMonth(date),
                leapMonth = cnDate.GetLeapMonth(year);
            var monthCn = months[month];

            if (leapMonth > 0)
            {
                monthCn = month == leapMonth ? $"闰{months[month - 1]}" : monthCn;
                monthCn = month > leapMonth ? months[month - 1] : monthCn;
            }

            return $"{yearCn}年{monthCn}{days[day]}";
        }

        /// <summary>
        ///     将阿拉伯数字转换中文日期数字
        /// </summary>
        /// <param name="data">日期范围1~31</param>
        /// <returns>中文日期数字</returns>
        public static string ToChineseDay(int data)
        {
            string result = string.Empty;

            if (!(data == 0 || data > 32))
            {
                string[] days =
                {
                    "〇", "一", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二", "十三", "十四", "十五", "十六", "十七",
                    "十八", "十九", "廿十", "廿一", "廿二", "廿三", "廿四", "廿五", "廿六", "廿七", "廿八", "廿九", "三十", "三十一"
                };
                result = days[data];
            }

            return result;
        }

        /// <summary>
        ///     将阿拉伯数字转换成中文月份数字
        ///     <para>eg:ConvertHelper.ToChineseMonth(1)==> "一"</para>
        /// </summary>
        /// <param name="data">月份范围1~12</param>
        /// <returns>中文月份数字</returns>
        public static string ToChineseMonth(this int data)
        {
            var result = string.Empty;

            if (!(data == 0 || data > 12))
            {
                string[] months = { "〇", "一", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二" };
                result = months[data];
            }

            return result;
        }

        /// <summary>
        ///     转换成日期
        /// </summary>
        /// <param name="data">数据</param>
        /// <param name="defalut">默认数值</param>
        /// <returns>日期</returns>
        public static DateTime ToDateOrDefault(this object data, DateTime defalut)
        {
            return DateTime.TryParse(data.ToString(), out var result) ? result : defalut;
        }

        /// <summary>
        ///     日期转化
        /// </summary>
        /// <returns>目标日期</returns>
        /// <param name="data">数据.</param>
        public static DateTime ToDateOrDefault(this object data)
        {
            return ToDateOrDefault(data, DateTime.MinValue);
        }

        /// <summary>
        ///     转换成decimal类型
        /// </summary>
        /// <param name="data">需要转换的object</param>
        /// <param name="defalut">默认数值</param>
        /// <returns>转换返回</returns>
        public static decimal ToDecimalOrDefault(this object data, decimal defalut = 0m)
        {
            if (data != null)
            {
                var result = decimal.TryParse(data.ToString(), out var parsedecimalValue);
                return result ? parsedecimalValue : defalut;
            }

            return defalut;
        }

        /// <summary>
        ///     转换成double类型
        /// </summary>
        /// <param name="data">需要转换的object</param>
        /// <param name="defalut">默认数值</param>
        /// <returns>转换返回</returns>
        public static double ToDoubleOrDefault(this object data, double defalut = 0d)
        {
            if (data != null)
            {
                var result = double.TryParse(data.ToString(), out var parseIntValue);
                return result ? parseIntValue : defalut;
            }

            return defalut;
        }

        /// <summary>
        ///     转换成Int32类型
        /// </summary>
        /// <param name="data">需要转换的object</param>
        /// <param name="defalut">默认数值</param>
        /// <returns>转换返回</returns>
        public static int ToInt32OrDefault(this object data, int defalut = 0)
        {
            if (data != null)
            {
                var result = int.TryParse(data.ToString(), out var parseIntValue);
                return result ? parseIntValue : defalut;
            }

            return defalut;
        }

        /// <summary>
        ///     转换成Int64类型
        /// </summary>
        /// <param name="data">需要转换的object</param>
        /// <param name="defalut">默认数值</param>
        /// <returns>转换返回</returns>
        public static long ToInt64OrDefault(this object data, long defalut = 0)
        {
            if (data != null)
            {
                var result = long.TryParse(data.ToString(), out var parseIntValue);
                return result ? parseIntValue : defalut;
            }

            return defalut;
        }

        /// <summary>
        ///     转换成Int类型
        /// </summary>
        /// <param name="data">需要转换的object</param>
        /// <param name="defalut">默认数值</param>
        /// <returns>转换返回</returns>
        public static int ToIntOrDefault(this object data, int defalut = 0)
        {
            if (data != null)
            {
                var result = int.TryParse(data.ToString(), out var parseIntValue);
                return result ? parseIntValue : defalut;
            }

            return defalut;
        }

        /// <summary>
        ///     按照列名称获取Int值
        /// </summary>
        /// <param name="row">DataRow</param>
        /// <param name="columnName">列名称</param>
        /// <param name="defalut">默认数值</param>
        /// <returns>若列不等于NULL则返回实际值</returns>
        public static int ToIntOrDefault(this DataRow row, string columnName, int defalut = 0)
        {
            if (row != null)
                if (row.IsNull(columnName))
                    int.TryParse(row[columnName].ToString(), out defalut);

            return defalut;
        }

        /// <summary>
        ///     按照列索引获取Int值
        /// </summary>
        /// <param name="row">DataRow</param>
        /// <param name="columnIndex">列索引</param>
        /// <param name="defalut">默认数值</param>
        /// <returns>若列不等于NULL则返回实际值</returns>
        public static int ToIntOrDefault(this DataRow row, int columnIndex, int defalut = 0)
        {
            if (row != null)
                if (row.IsNull(columnIndex))
                    int.TryParse(row[columnIndex].ToString(), out defalut);

            return defalut;
        }

        /// <summary>
        ///     转换成Int16类型
        /// </summary>
        /// <param name="data">需要转换的object</param>
        /// <param name="defalut">默认数值</param>
        /// <returns>转换返回</returns>
        public static short ToShortOrDefault(this object data, short defalut)
        {
            if (data != null)
            {
                var result = short.TryParse(data.ToString(), out var parseIntValue);
                return result ? parseIntValue : defalut;
            }

            return defalut;
        }

        /// <summary>
        ///     泛型数组转换为字符串
        /// </summary>
        /// <typeparam name="T">泛型</typeparam>
        /// <param name="array">泛型数组</param>
        /// <param name="delimiter">分隔符</param>
        /// <returns>转换好的字符串</returns>
        public static string ToString<T>(this T[] array, string delimiter)
        {
            var data = Array.ConvertAll(array, n => n.ToString());
            return string.Join(delimiter, data);
        }

        /// <summary>
        ///     字符串类型转换
        /// </summary>
        /// <typeparam name="T">目标类型</typeparam>
        /// <param name="data">需要转换的字符串</param>
        /// <returns>转换类型</returns>
        public static T ToStringBase<T>(this string data)
        {
            var result = default(T);

            if (!string.IsNullOrEmpty(data))
            {
                var convert = TypeDescriptor.GetConverter(typeof(T));
                result = (T)convert.ConvertFrom(data);
            }

            return result;
        }

        /// <summary>
        ///     转换成string类型
        /// </summary>
        /// <param name="data">需要转换的object</param>
        /// <param name="defalut">默认数值</param>
        /// <returns>转换返回</returns>
        public static string ToStringOrDefault(this object data, string defalut)
        {
            return data == null ? defalut : data.ToString();
        }

        /// <summary>
        ///     将时间类型转换为字符串表述
        /// </summary>
        /// <param name="data">DateTime</param>
        /// <param name="formartString">格式化字符串</param>
        /// <param name="defalut">默认数值</param>
        /// <returns>字符串</returns>
        public static string ToStringOrDefault(this DateTime data, string formartString, string defalut)
        {
            if (data != default) return data.ToString(formartString);

            return defalut;
        }

        /// <summary>
        ///     按照列名称获取Sting值
        /// </summary>
        /// <param name="row">DataRow</param>
        /// <param name="columnName">列名称</param>
        /// <param name="defalut">默认数值</param>
        /// <returns>若列不等于NULL则返回实际值</returns>
        public static string ToStringOrDefault(this DataRow row, string columnName, string defalut)
        {
            if (row != null) defalut = row.IsNull(columnName) ? defalut : row[columnName].ToString();

            return defalut;
        }

        /// <summary>
        ///     按照列索引获取Sting值
        /// </summary>
        /// <param name="row">DataRow</param>
        /// <param name="columnIndex">列索引</param>
        /// <param name="defalut">默认数值</param>
        /// <returns>若列不等于NULL则返回实际值</returns>
        public static string ToStringOrDefault(this DataRow row, int columnIndex, string defalut)
        {
            if (row != null) defalut = row.IsNull(columnIndex) ? defalut : row[columnIndex].ToString().Trim();

            return defalut;
        }

        /// <summary>
        ///     转换成ushort类型
        /// </summary>
        /// <param name="data">需要转换的object</param>
        /// <param name="defalut">默认数值</param>
        /// <returns>转换返回</returns>
        public static ushort ToUShortOrDefault(this object data, ushort defalut)
        {
            if (data != null)
            {
                var result = ushort.TryParse(data.ToString(), out var parseUShortValue);
                return result ? parseUShortValue : defalut;
            }

            return defalut;
        }

        /// <summary>
        ///     将字符串转换为Guid
        /// </summary>
        /// <returns>期待guid</returns>
        /// <param name="data">数值.</param>
        public static Guid ToGuidOrDefault(this string data)
        {
            return ToGuidOrDefault(data, Guid.Empty);
        }

        /// <summary>
        ///     将字符串转换为Guid
        /// </summary>
        /// <param name="data">需要转换的字符串</param>
        /// <param name="defalut">默认数值</param>
        /// <returns>转换返回</returns>
        public static Guid ToGuidOrDefault(this string data, Guid defalut)
        {
            Guid result;
            if (Guid.TryParse(data, out result))
                return result;
            return defalut;
        }

        #endregion Methods
    }
}

代码使用#

1. 实现很简单，所以使用也很简单，假如您还是很懒的话，去Star下，我告诉您怎么用，哈哈哈~

结语#

1. 小弟不才，大佬轻拍；