/*******************************************************************************
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* Copyright © 2016 NFine.Framework 版权所有
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* Author: NFine
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* Description: NFine快速开发平台
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* Website：http://www.nfine.cn
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*********************************************************************************/
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using System;
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namespace Common
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{
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public static partial class Ext
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{
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#region 数值转换
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/// <summary>
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/// 转换为整型
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/// </summary>
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/// <param name="data">数据</param>
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public static int ToInt(this object data)
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{
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if (data == null)
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return 0;
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int result;
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var success = int.TryParse(data.ToString(), out result);
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if (success)
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return result;
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try
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{
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return Convert.ToInt32(ToDouble(data, 0));
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}
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catch (Exception)
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{
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return 0;
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}
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}
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/// <summary>
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/// 转换为可空整型
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/// </summary>
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/// <param name="data">数据</param>
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public static int? ToIntOrNull(this object data)
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{
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if (data == null)
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return null;
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int result;
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bool isValid = int.TryParse(data.ToString(), out result);
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if (isValid)
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return result;
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return null;
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}
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/// <summary>
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/// 转换为双精度浮点数
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/// </summary>
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/// <param name="data">数据</param>
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public static double ToDouble(this object data)
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{
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if (data == null)
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return 0;
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double result;
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return double.TryParse(data.ToString(), out result) ? result : 0;
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}
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/// <summary>
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/// 转换为双精度浮点数,并按指定的小数位4舍5入
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/// </summary>
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/// <param name="data">数据</param>
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/// <param name="digits">小数位数</param>
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public static double ToDouble(this object data, int digits)
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{
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return Math.Round(ToDouble(data), digits);
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}
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/// <summary>
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/// 转换为可空双精度浮点数
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/// </summary>
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/// <param name="data">数据</param>
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public static double? ToDoubleOrNull(this object data)
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{
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if (data == null)
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return null;
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double result;
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bool isValid = double.TryParse(data.ToString(), out result);
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if (isValid)
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return result;
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return null;
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}
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/// <summary>
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/// 转换为高精度浮点数
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/// </summary>
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/// <param name="data">数据</param>
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public static decimal ToDecimal(this object data)
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{
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if (data == null)
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return 0;
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decimal result;
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return decimal.TryParse(data.ToString(), out result) ? result : 0;
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}
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/// <summary>
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/// 转换为高精度浮点数,并按指定的小数位4舍5入
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/// </summary>
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/// <param name="data">数据</param>
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/// <param name="digits">小数位数</param>
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public static decimal ToDecimal(this object data, int digits)
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{
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return Math.Round(ToDecimal(data), digits);
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}
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/// <summary>
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/// 转换为可空高精度浮点数
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/// </summary>
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/// <param name="data">数据</param>
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public static decimal? ToDecimalOrNull(this object data)
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{
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if (data == null)
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return null;
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decimal result;
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bool isValid = decimal.TryParse(data.ToString(), out result);
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if (isValid)
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return result;
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return null;
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}
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/// <summary>
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/// 转换为可空高精度浮点数,并按指定的小数位4舍5入
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/// </summary>
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/// <param name="data">数据</param>
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/// <param name="digits">小数位数</param>
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public static decimal? ToDecimalOrNull(this object data, int digits)
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{
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var result = ToDecimalOrNull(data);
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if (result == null)
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return null;
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return Math.Round(result.Value, digits);
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}
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#endregion
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#region 日期转换
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/// <summary>
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/// 转换为日期
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/// </summary>
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/// <param name="data">数据</param>
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public static DateTime ToDate(this object data)
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{
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if (data == null)
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return DateTime.MinValue;
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DateTime result;
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return DateTime.TryParse(data.ToString(), out result) ? result : DateTime.MinValue;
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}
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/// <summary>
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/// 转换为可空日期
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/// </summary>
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/// <param name="data">数据</param>
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public static DateTime? ToDateOrNull(this object data)
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{
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if (data == null)
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return null;
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DateTime result;
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bool isValid = DateTime.TryParse(data.ToString(), out result);
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if (isValid)
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return result;
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return null;
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}
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#endregion
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#region 布尔转换
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/// <summary>
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/// 转换为布尔值
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/// </summary>
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/// <param name="data">数据</param>
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public static bool ToBool(this object data)
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{
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if (data == null)
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return false;
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bool? value = GetBool(data);
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if (value != null)
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return value.Value;
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bool result;
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return bool.TryParse(data.ToString(), out result) && result;
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}
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/// <summary>
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/// 获取布尔值
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/// </summary>
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private static bool? GetBool(this object data)
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{
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switch (data.ToString().Trim().ToLower())
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{
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case "0":
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return false;
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case "1":
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return true;
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case "是":
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return true;
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case "否":
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return false;
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case "yes":
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return true;
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case "no":
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return false;
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default:
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return null;
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}
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}
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/// <summary>
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/// 转换为可空布尔值
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/// </summary>
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/// <param name="data">数据</param>
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public static bool? ToBoolOrNull(this object data)
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{
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if (data == null)
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return null;
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bool? value = GetBool(data);
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if (value != null)
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return value.Value;
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bool result;
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bool isValid = bool.TryParse(data.ToString(), out result);
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if (isValid)
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return result;
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return null;
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}
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#endregion
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#region 字符串转换
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/// <summary>
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/// 转换为字符串
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/// </summary>
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/// <param name="data">数据</param>
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public static string ToString(this object data)
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{
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return data == null ? string.Empty : data.ToString().Trim();
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}
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#endregion
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/// <summary>
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/// 安全返回值
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/// </summary>
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/// <param name="value">可空值</param>
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public static T SafeValue<T>(this T? value) where T : struct
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{
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return value ?? default(T);
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}
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/// <summary>
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/// 是否为空
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/// </summary>
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/// <param name="value">值</param>
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public static bool IsEmpty(this string value)
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{
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return string.IsNullOrWhiteSpace(value);
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}
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/// <summary>
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/// 是否为空
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/// </summary>
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/// <param name="value">值</param>
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public static bool IsEmpty(this Guid? value)
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{
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if (value == null)
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return true;
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return IsEmpty(value.Value);
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}
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/// <summary>
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/// 是否为空
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/// </summary>
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/// <param name="value">值</param>
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public static bool IsEmpty(this Guid value)
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{
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if (value == Guid.Empty)
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return true;
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return false;
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}
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/// <summary>
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/// 是否为空
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/// </summary>
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/// <param name="value">值</param>
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public static bool IsEmpty(this object value)
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{
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if (value != null && !string.IsNullOrEmpty(value.ToString()))
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{
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return false;
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}
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else
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{
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return true;
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}
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}
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}
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}
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