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233 lines
6.7 KiB
233 lines
6.7 KiB
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Security.Cryptography;
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using System.Text;
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namespace Utils.Datas
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{
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public static class DataTypeUtil
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{
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public static int GetIntNum(object obj)
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{
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if (obj == null || obj.ToString() == string.Empty)
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return 0;
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return int.Parse(obj.ToString());
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}
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public static int? GetIntNullNum(object obj)
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{
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if (obj == null || obj.ToString() == string.Empty)
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return null;
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return int.Parse(obj.ToString());
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}
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public static double GetDoubleNum(object obj)
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{
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if (obj == null || obj.ToString() == string.Empty)
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return 0;
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return double.Parse(obj.ToString());
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}
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public static double? GetDoubleNullNum(object obj)
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{
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if (obj == null || obj.ToString() == string.Empty)
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return null;
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return double.Parse(obj.ToString());
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}
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public static decimal GetDecimalNum(object obj)
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{
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if (obj == null || obj.ToString() == string.Empty)
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return 0;
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return decimal.Parse(obj.ToString());
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}
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public static decimal? GetDecimalNullNum(object obj)
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{
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if (obj == null || obj.ToString() == string.Empty)
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return null;
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return decimal.Parse(obj.ToString());
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}
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public static long GetLongNum(object obj)
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{
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if (obj == null || obj.ToString() == string.Empty)
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return 0;
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return long.Parse(obj.ToString());
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}
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public static long? GetLongNullNum(object obj)
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{
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if (obj == null || obj.ToString() == string.Empty)
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return null;
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return long.Parse(obj.ToString());
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}
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public static DateTime? GetDateTimeNullData(object obj)
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{
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if (obj == null || string.IsNullOrEmpty(obj.ToString()))
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return null;
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return DateTime.Parse(obj.ToString());
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}
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public static bool GetBoolData(object obj)
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{
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if (obj == null || obj.ToString() == string.Empty)
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return false;
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return bool.Parse(obj.ToString());//只能转换字符串：“true”、“false”
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}
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///// <summary>
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///// 用于FireBird的数据类型
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///// </summary>
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///// <param name="booleanNum">存储在数据库中的值(数据库中的类型为Smallint)</param>
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//public static bool? GetBoolNullFromSmallInt(int booleanNum)
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//{
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// if (booleanNum > 0)
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// return true;
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// if (booleanNum == 0)
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// return false;
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// return null;//booleanNum < 0
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//}
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///// <summary>
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///// 用于FireBird的数据类型
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///// </summary>
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///// <param name="booleanNum">存储在数据库中的值(数据库中的类型为Smallint)</param>
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//public static bool GetBoolDataFromSmallInt(int booleanNum)
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//{
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// return booleanNum > 0;
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//}
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///// <summary>
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///// 将bool类型值，转换为存储在Firebird数据库中的值
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///// </summary>
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///// <param name="booleanData"></param>
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///// <returns></returns>
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//public static int GetDatabaseDataFromBool(bool booleanData)
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//{
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// return booleanData ? 1 : 0;
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//}
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public static bool? GetBoolNullData(object obj)
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{
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if (obj == null || obj.ToString() == string.Empty)
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return null;
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return bool.Parse(obj.ToString());//只能转换字符串：“true”、“false”
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}
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public static short GetShortNum(object obj)
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{
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if (obj == null || obj.ToString() == string.Empty)
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return 0;
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return short.Parse(obj.ToString());
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}
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public static short? GetShortNullNum(object obj)
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{
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if (obj == null || obj.ToString() == string.Empty)
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return null;
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return short.Parse(obj.ToString());
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}
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public static string ToStringEmptyIfNull(object obj)
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{
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return obj == null ? string.Empty : obj.ToString();
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}
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/// <summary>
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/// 空数据会被转换为"null"
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/// </summary>
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public static string ToStringNullIfNull(decimal? num)
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{
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return num == null ? "null" : num.ToString();
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}
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/// <summary>
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/// 空数据会被转换为"null"
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/// </summary>
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public static string ToStringNullIfNull(int? num)
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{
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return num == null ? "null" : num.ToString();
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}
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/// <summary>
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/// 空数据会被转换为"null"
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/// </summary>
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public static string ToStringNullIfNull(DateTime? num)
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{
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return num == null ? "null" : num.ToString();
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}
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/// <summary>
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/// 将以指定字符串分隔的数据转换成List数据。
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/// <para>如果有为空或不合法的数据，则去除之，只保留合法的数据。</para>
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/// </summary>
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public static List<double> GetListDouble(object obj, string separator)
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{
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bool hasFailedItem;
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return GetListDouble(obj, separator, out hasFailedItem);
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}
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/// <summary>
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/// 将以指定字符串分隔的数据转换成List数据。有转换失败的信息，则out的值为true；否则为false
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/// <para>如果有为空或不合法的数据，则去除之，只保留合法的数据。</para>
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/// </summary>
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/// <param name="hasFailedItem">有转换失败的信息，则out的值为true；否则为false</param>
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public static List<double> GetListDouble(object obj, string separator, out bool hasFailedItem)
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{
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hasFailedItem = false;
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List<double> result = new List<double>();
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var splitResult = obj.ToString().Split(new string[] { separator }, StringSplitOptions.RemoveEmptyEntries);
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foreach (var item in splitResult) {
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double num;
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if (double.TryParse(item, out num))
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result.Add(num);
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else
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hasFailedItem = true;
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}
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return result;
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}
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/// <summary>
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/// 将以指定字符串分隔的数据转换成List数据。
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/// <para>如果有为空或不合法的数据，则去除之，只保留合法的数据。</para>
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/// </summary>
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public static List<int> GetListInt(object obj, string separator)
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{
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bool hasFailedItem;
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return GetListInt(obj, separator, out hasFailedItem);
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}
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/// <summary>
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/// 将以指定字符串分隔的数据转换成List数据。有转换失败的信息，则out的值为true；否则为false
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/// <para>如果有为空或不合法的数据，则去除之，只保留合法的数据。</para>
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/// </summary>
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/// <param name="hasFailedItem">有转换失败的信息，则out的值为true；否则为false</param>
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public static List<int> GetListInt(object obj, string separator, out bool hasFailedItem)
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{
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hasFailedItem = false;
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List<int> result = new List<int>();
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var splitResult = obj.ToString().Split(new string[] { separator }, StringSplitOptions.RemoveEmptyEntries);
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foreach (var item in splitResult) {
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int num;
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if (int.TryParse(item, out num))
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result.Add(num);
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else
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hasFailedItem = true;
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}
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return result;
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}
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/// <summary>
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/// 将以指定字符串分隔的数据转换成List数据。
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/// <para>如果有为空或不合法的数据，则去除之，只保留合法的数据。</para>
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/// </summary>
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public static IList<string> GetListString(object obj, string separator)
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{
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return obj.ToString().Split(new string[] { separator }, StringSplitOptions.RemoveEmptyEntries);
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}
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}
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}
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