1150 lines
32 KiB
C#
1150 lines
32 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Linq;
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using System.Reflection;
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using System.Text;
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namespace 电子展板.Utility.Core
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{
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/// <summary>
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/// 处理数据类型转换，数制转换、编码转换相关的类
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/// </summary>
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public static class ConvertHelper
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{
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public static DataTable ToDataTable<T>(this List<T> data)
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{
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PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(typeof(T));
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DataTable dataTable = new DataTable();
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for (int i = 0; i < properties.Count; i++)
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{
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PropertyDescriptor property = properties[i];
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dataTable.Columns.Add(property.Name, Nullable.GetUnderlyingType(property.PropertyType) ?? property.PropertyType);
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}
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object[] values = new object[properties.Count];
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foreach (T item in data)
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{
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for (int i = 0; i < values.Length; i++)
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{
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values[i] = properties[i].GetValue(item);
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}
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dataTable.Rows.Add(values);
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}
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return dataTable;
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}
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public static List<T> ToList<T>(this DataTable table)
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{
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if (table == null)
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{
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return null;
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}
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List<DataRow> rows = new List<DataRow>();
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foreach (DataRow row in table.Rows)
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{
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rows.Add(row);
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}
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return rows.ToList<T>();
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}
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public static List<T> ToList<T>(this List<DataRow> rows)
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{
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List<T> list = null;
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if (rows != null)
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{
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list = new List<T>();
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foreach (DataRow row in rows)
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{
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T item = row.ToObject<T>();
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list.Add(item);
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}
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}
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return list;
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}
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public static T ToObject<T>(this DataRow row)
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{
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T obj = default(T);
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if (row != null)
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{
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obj = Activator.CreateInstance<T>();
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foreach (DataColumn column in row.Table.Columns)
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{
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PropertyInfo prop = obj.GetType().GetProperty(column.ColumnName);
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try
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{
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object value = row[column.ColumnName];
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prop.SetValue(obj, value, null);
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}
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catch (Exception ex)
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{ //You can log something here
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//throw;
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}
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}
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}
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return obj;
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}
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#region 各进制数间转换
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/// <summary>
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/// 实现各进制数间的转换。ConvertBase("15",10,16)表示将十进制数15转换为16进制的数。
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/// </summary>
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/// <param name="value">要转换的值,即原值</param>
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/// <param name="from">原值的进制,只能是2,8,10,16四个值。</param>
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/// <param name="to">要转换到的目标进制，只能是2,8,10,16四个值。</param>
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public static string ConvertBase(string value, int from, int to)
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{
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if (!isBaseNumber(from))
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throw new ArgumentException("参数from只能是2,8,10,16四个值。");
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if (!isBaseNumber(to))
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throw new ArgumentException("参数to只能是2,8,10,16四个值。");
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int intValue = Convert.ToInt32(value, from); //先转成10进制
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string result = Convert.ToString(intValue, to); //再转成目标进制
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if (to == 2)
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{
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int resultLength = result.Length; //获取二进制的长度
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switch (resultLength)
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{
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case 7:
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result = "0" + result;
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break;
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case 6:
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result = "00" + result;
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break;
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case 5:
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result = "000" + result;
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break;
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case 4:
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result = "0000" + result;
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break;
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case 3:
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result = "00000" + result;
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break;
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}
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}
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return result;
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}
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/// <summary>
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/// 判断是否是 2 8 10 16
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/// </summary>
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/// <param name="baseNumber"></param>
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/// <returns></returns>
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private static bool isBaseNumber(int baseNumber)
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{
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if (baseNumber == 2 || baseNumber == 8 || baseNumber == 10 || baseNumber == 16)
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return true;
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return false;
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}
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#endregion
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#region 使用指定字符集将string转换成byte[]
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/// <summary>
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/// 将string转换成byte[]。
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/// </summary>
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/// <param name="text">要转换的字符串</param>
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public static byte[] StringToBytes(string text)
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{
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return Encoding.Default.GetBytes(text);
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}
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/// <summary>
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/// 使用指定字符集将string转换成byte[]
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/// </summary>
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/// <param name="text">要转换的字符串</param>
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/// <param name="encoding">字符编码</param>
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public static byte[] StringToBytes(string text, Encoding encoding)
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{
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return encoding.GetBytes(text);
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}
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#endregion
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#region 使用指定字符集将byte[]转换成string
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/// <summary>
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/// 将byte[]转换成string
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/// </summary>
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/// <param name="bytes">要转换的字节数组</param>
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public static string BytesToString(byte[] bytes)
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{
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return Encoding.Default.GetString(bytes);
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}
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/// <summary>
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/// 使用指定字符集将byte[]转换成string。
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/// </summary>
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/// <param name="bytes">要转换的字节数组</param>
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/// <param name="encoding">字符编码</param>
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public static string BytesToString(byte[] bytes, Encoding encoding)
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{
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return encoding.GetString(bytes);
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}
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#endregion
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#region string转long
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/// <summary>
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/// string转long
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/// </summary>
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public static long ToInt64(this string value)
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{
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long? val = ToNullableInt64(value);
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if (val == null)
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return 0;
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return val.Value;
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}
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#endregion
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#region string转long?
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/// <summary>
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/// string转long?
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/// </summary>
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public static long? ToNullableInt64(this string value)
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{
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long? result = null;
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if (!string.IsNullOrWhiteSpace(value))
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{
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long d;
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if (long.TryParse(value, out d))
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{
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result = d;
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}
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}
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return result;
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}
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#endregion
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#region 将byte[]转换成int
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/// <summary>
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/// 将byte[]转换成int
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/// </summary>
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/// <param name="data">需要转换成整数的byte数组</param>
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public static int BytesToInt32(byte[] data)
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{
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//如果传入的字节数组长度小于4,则返回0
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if (data.Length < 4)
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{
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return 0;
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}
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//定义要返回的整数
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int num = 0;
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//如果传入的字节数组长度大于4,需要进行处理
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if (data.Length >= 4)
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{
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//创建一个临时缓冲区
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byte[] tempBuffer = new byte[4];
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//将传入的字节数组的前4个字节复制到临时缓冲区
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Buffer.BlockCopy(data, 0, tempBuffer, 0, 4);
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//将临时缓冲区的值转换成整数，并赋给num
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num = BitConverter.ToInt32(tempBuffer, 0);
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}
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//返回整数
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return num;
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}
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#endregion
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#region 将数据转换为整型
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#region string转int
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/// <summary>
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/// string转int
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/// </summary>
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public static int ToInt32(this string value)
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{
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int? val = ToNullableInt32(value);
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if (val == null)
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return 0;
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return val.Value;
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}
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#endregion
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#region string转int?
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/// <summary>
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/// string转int?
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/// </summary>
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public static int? ToNullableInt32(this string value)
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{
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int? result = null;
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if (!string.IsNullOrWhiteSpace(value))
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{
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int d;
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if (int.TryParse(value, out d))
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{
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result = d;
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}
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}
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return result;
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}
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#endregion
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/// <summary>
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/// 将数据转换为整型 转换失败返回默认值
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/// </summary>
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/// <typeparam name="T">数据类型</typeparam>
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/// <param name="data">数据</param>
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/// <param name="defValue">默认值</param>
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/// <returns></returns>
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public static int ToInt32<T>(T data, int defValue)
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{
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//如果为空则返回默认值
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if (data == null || Convert.IsDBNull(data))
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{
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return defValue;
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}
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try
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{
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return Convert.ToInt32(data);
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}
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catch
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{
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return defValue;
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}
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}
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/// <summary>
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/// 将数据转换为整型 转换失败返回默认值。
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/// </summary>
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/// <param name="data">数据</param>
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/// <param name="defValue">默认值</param>
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/// <returns></returns>
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public static int ToInt32(string data, int defValue)
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{
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//如果为空则返回默认值
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if (string.IsNullOrEmpty(data))
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{
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return defValue;
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}
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int temp = 0;
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if (Int32.TryParse(data, out temp))
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{
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return temp;
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}
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else
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{
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return defValue;
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}
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}
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/// <summary>
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/// 将数据转换为整型 转换失败返回默认值
|
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/// </summary>
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/// <param name="data">数据</param>
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/// <param name="defValue">默认值</param>
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/// <returns></returns>
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public static int ToInt32(object data, int defValue)
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{
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//如果为空则返回默认值
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if (data == null || Convert.IsDBNull(data))
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{
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return defValue;
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}
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||
|
||
try
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||
{
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||
return Convert.ToInt32(data);
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}
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catch
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{
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return defValue;
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}
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}
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#endregion
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#region 将数据转换为布尔型
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/// <summary>
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/// 将数据转换为布尔类型 转换失败返回默认值
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||
/// </summary>
|
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/// <typeparam name="T">数据类型</typeparam>
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/// <param name="data">数据</param>
|
||
/// <param name="defValue">默认值</param>
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/// <returns></returns>
|
||
public static bool ToBoolean<T>(T data, bool defValue)
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{
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//如果为空则返回默认值
|
||
if (data == null || Convert.IsDBNull(data))
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{
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return defValue;
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||
}
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||
|
||
try
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{
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||
return Convert.ToBoolean(data);
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||
}
|
||
catch
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||
{
|
||
return defValue;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 将数据转换为布尔类型 转换失败返回 默认值
|
||
/// </summary>
|
||
/// <param name="data">数据</param>
|
||
/// <param name="defValue">默认值</param>
|
||
/// <returns></returns>
|
||
public static bool ToBoolean(string data, bool defValue)
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||
{
|
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//如果为空则返回默认值
|
||
if (string.IsNullOrEmpty(data))
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||
{
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||
return defValue;
|
||
}
|
||
|
||
bool temp = false;
|
||
if (bool.TryParse(data, out temp))
|
||
{
|
||
return temp;
|
||
}
|
||
else
|
||
{
|
||
return defValue;
|
||
}
|
||
}
|
||
|
||
|
||
/// <summary>
|
||
/// 将数据转换为布尔类型 转换失败返回 默认值
|
||
/// </summary>
|
||
/// <param name="data">数据</param>
|
||
/// <param name="defValue">默认值</param>
|
||
/// <returns></returns>
|
||
public static bool ToBoolean(object data, bool defValue)
|
||
{
|
||
//如果为空则返回默认值
|
||
if (data == null || Convert.IsDBNull(data))
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
try
|
||
{
|
||
return Convert.ToBoolean(data);
|
||
}
|
||
catch
|
||
{
|
||
return defValue;
|
||
}
|
||
}
|
||
|
||
|
||
#endregion
|
||
|
||
#region 将数据转换为单精度浮点型
|
||
|
||
|
||
/// <summary>
|
||
/// 将数据转换为单精度浮点型 转换失败 返回默认值
|
||
/// </summary>
|
||
/// <typeparam name="T">数据类型</typeparam>
|
||
/// <param name="data">数据</param>
|
||
/// <param name="defValue">默认值</param>
|
||
/// <returns></returns>
|
||
public static float ToFloat<T>(T data, float defValue)
|
||
{
|
||
//如果为空则返回默认值
|
||
if (data == null || Convert.IsDBNull(data))
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
try
|
||
{
|
||
return Convert.ToSingle(data);
|
||
}
|
||
catch
|
||
{
|
||
return defValue;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 将数据转换为单精度浮点型 转换失败返回默认值
|
||
/// </summary>
|
||
/// <param name="data">数据</param>
|
||
/// <param name="defValue">默认值</param>
|
||
/// <returns></returns>
|
||
public static float ToFloat(object data, float defValue)
|
||
{
|
||
//如果为空则返回默认值
|
||
if (data == null || Convert.IsDBNull(data))
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
try
|
||
{
|
||
return Convert.ToSingle(data);
|
||
}
|
||
catch
|
||
{
|
||
return defValue;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 将数据转换为单精度浮点型 转换失败返回默认值
|
||
/// </summary>
|
||
/// <param name="data">数据</param>
|
||
/// <param name="defValue">默认值</param>
|
||
/// <returns></returns>
|
||
public static float ToFloat(string data, float defValue)
|
||
{
|
||
//如果为空则返回默认值
|
||
if (string.IsNullOrEmpty(data))
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
float temp = 0;
|
||
|
||
if (float.TryParse(data, out temp))
|
||
{
|
||
return temp;
|
||
}
|
||
else
|
||
{
|
||
return defValue;
|
||
}
|
||
}
|
||
|
||
|
||
#endregion
|
||
|
||
#region 将数据转换为双精度浮点型
|
||
|
||
#region string转double
|
||
/// <summary>
|
||
/// string转double
|
||
/// </summary>
|
||
public static double ToDouble(this string value)
|
||
{
|
||
double? val = ToNullableDouble(value);
|
||
if (val == null)
|
||
return 0;
|
||
return val.Value;
|
||
}
|
||
#endregion
|
||
|
||
#region string转double?
|
||
/// <summary>
|
||
/// string转double?
|
||
/// </summary>
|
||
public static double? ToNullableDouble(this string value)
|
||
{
|
||
double? result = null;
|
||
|
||
if (!string.IsNullOrWhiteSpace(value))
|
||
{
|
||
double d;
|
||
if (double.TryParse(value, out d))
|
||
{
|
||
result = d;
|
||
}
|
||
}
|
||
|
||
return result;
|
||
}
|
||
#endregion
|
||
/// <summary>
|
||
/// 将数据转换为双精度浮点型 转换失败返回默认值
|
||
/// </summary>
|
||
/// <typeparam name="T">数据的类型</typeparam>
|
||
/// <param name="data">要转换的数据</param>
|
||
/// <param name="defValue">默认值</param>
|
||
/// <returns></returns>
|
||
public static double ToDouble<T>(T data, double defValue)
|
||
{
|
||
//如果为空则返回默认值
|
||
if (data == null || Convert.IsDBNull(data))
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
try
|
||
{
|
||
return Convert.ToDouble(data);
|
||
}
|
||
catch
|
||
{
|
||
return defValue;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 将数据转换为双精度浮点型,并设置小数位 转换失败返回默认值
|
||
/// </summary>
|
||
/// <typeparam name="T">数据的类型</typeparam>
|
||
/// <param name="data">要转换的数据</param>
|
||
/// <param name="decimals">小数的位数</param>
|
||
/// <param name="defValue">默认值</param>
|
||
/// <returns></returns>
|
||
public static double ToDouble<T>(T data, int decimals, double defValue)
|
||
{
|
||
//如果为空则返回默认值
|
||
if (data == null || Convert.IsDBNull(data))
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
try
|
||
{
|
||
return Math.Round(Convert.ToDouble(data), decimals);
|
||
}
|
||
catch
|
||
{
|
||
return defValue;
|
||
}
|
||
}
|
||
|
||
|
||
|
||
/// <summary>
|
||
/// 将数据转换为双精度浮点型 转换失败返回默认值
|
||
/// </summary>
|
||
/// <param name="data">要转换的数据</param>
|
||
/// <param name="defValue">默认值</param>
|
||
/// <returns></returns>
|
||
public static double ToDouble(object data, double defValue)
|
||
{
|
||
//如果为空则返回默认值
|
||
if (data == null || Convert.IsDBNull(data))
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
try
|
||
{
|
||
return Convert.ToDouble(data);
|
||
}
|
||
catch
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
}
|
||
|
||
/// <summary>
|
||
/// 将数据转换为双精度浮点型 转换失败返回默认值
|
||
/// </summary>
|
||
/// <param name="data">要转换的数据</param>
|
||
/// <param name="defValue">默认值</param>
|
||
/// <returns></returns>
|
||
public static double ToDouble(string data, double defValue)
|
||
{
|
||
//如果为空则返回默认值
|
||
if (string.IsNullOrEmpty(data))
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
double temp = 0;
|
||
|
||
if (double.TryParse(data, out temp))
|
||
{
|
||
return temp;
|
||
}
|
||
else
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
}
|
||
|
||
|
||
/// <summary>
|
||
/// 将数据转换为双精度浮点型,并设置小数位 转换失败返回默认值
|
||
/// </summary>
|
||
/// <param name="data">要转换的数据</param>
|
||
/// <param name="decimals">小数的位数</param>
|
||
/// <param name="defValue">默认值</param>
|
||
/// <returns></returns>
|
||
public static double ToDouble(object data, int decimals, double defValue)
|
||
{
|
||
//如果为空则返回默认值
|
||
if (data == null || Convert.IsDBNull(data))
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
try
|
||
{
|
||
return Math.Round(Convert.ToDouble(data), decimals);
|
||
}
|
||
catch
|
||
{
|
||
return defValue;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 将数据转换为双精度浮点型,并设置小数位 转换失败返回默认值
|
||
/// </summary>
|
||
/// <param name="data">要转换的数据</param>
|
||
/// <param name="decimals">小数的位数</param>
|
||
/// <param name="defValue">默认值</param>
|
||
/// <returns></returns>
|
||
public static double ToDouble(string data, int decimals, double defValue)
|
||
{
|
||
//如果为空则返回默认值
|
||
if (string.IsNullOrEmpty(data))
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
double temp = 0;
|
||
|
||
if (double.TryParse(data, out temp))
|
||
{
|
||
return Math.Round(temp, decimals);
|
||
}
|
||
else
|
||
{
|
||
return defValue;
|
||
}
|
||
}
|
||
|
||
|
||
#endregion
|
||
|
||
#region 将数据转换为指定类型
|
||
/// <summary>
|
||
/// 将数据转换为指定类型
|
||
/// </summary>
|
||
/// <param name="data">转换的数据</param>
|
||
/// <param name="targetType">转换的目标类型</param>
|
||
public static object ConvertTo(object data, Type targetType)
|
||
{
|
||
if (data == null || Convert.IsDBNull(data))
|
||
{
|
||
return null;
|
||
}
|
||
|
||
Type type2 = data.GetType();
|
||
if (targetType == type2)
|
||
{
|
||
return data;
|
||
}
|
||
if (((targetType == typeof(Guid)) || (targetType == typeof(Guid?))) && (type2 == typeof(string)))
|
||
{
|
||
if (string.IsNullOrEmpty(data.ToString()))
|
||
{
|
||
return null;
|
||
}
|
||
return new Guid(data.ToString());
|
||
}
|
||
|
||
if (targetType.IsEnum)
|
||
{
|
||
try
|
||
{
|
||
return Enum.Parse(targetType, data.ToString(), true);
|
||
}
|
||
catch
|
||
{
|
||
return Enum.ToObject(targetType, data);
|
||
}
|
||
}
|
||
|
||
if (targetType.IsGenericType)
|
||
{
|
||
targetType = targetType.GetGenericArguments()[0];
|
||
}
|
||
|
||
return Convert.ChangeType(data, targetType);
|
||
}
|
||
|
||
/// <summary>
|
||
/// 将数据转换为指定类型
|
||
/// </summary>
|
||
/// <typeparam name="T">转换的目标类型</typeparam>
|
||
/// <param name="data">转换的数据</param>
|
||
public static T ConvertTo<T>(object data)
|
||
{
|
||
if (data == null || Convert.IsDBNull(data))
|
||
return default(T);
|
||
|
||
object obj = ConvertTo(data, typeof(T));
|
||
if (obj == null)
|
||
{
|
||
return default(T);
|
||
}
|
||
return (T)obj;
|
||
}
|
||
#endregion
|
||
|
||
#region 将数据转换Decimal
|
||
|
||
|
||
#region string转decimal
|
||
/// <summary>
|
||
/// string转decimal
|
||
/// </summary>
|
||
public static decimal ToDecimal(this string value)
|
||
{
|
||
decimal? val = ToNullableDecimal(value);
|
||
if (null == val)
|
||
{
|
||
return 0;
|
||
}
|
||
return val.Value;
|
||
}
|
||
#endregion
|
||
|
||
#region string转decimal?
|
||
/// <summary>
|
||
/// string转decimal?
|
||
/// </summary>
|
||
public static decimal? ToNullableDecimal(this string value)
|
||
{
|
||
decimal? result = null;
|
||
|
||
if (!string.IsNullOrWhiteSpace(value))
|
||
{
|
||
decimal d;
|
||
if (decimal.TryParse(value, out d))
|
||
{
|
||
result = d;
|
||
}
|
||
}
|
||
|
||
return result;
|
||
}
|
||
#endregion
|
||
#region decimal?转decimal
|
||
/// <summary>
|
||
/// decimal?转decimal
|
||
/// </summary>
|
||
public static decimal ToDecimal(this decimal? value)
|
||
{
|
||
if (value != null) return value.Value;
|
||
return 0;
|
||
}
|
||
#endregion
|
||
/// <summary>
|
||
/// 将数据转换为Decimal 转换失败返回默认值
|
||
/// </summary>
|
||
/// <typeparam name="T">数据类型</typeparam>
|
||
/// <param name="data">数据</param>
|
||
/// <param name="defValue">默认值</param>
|
||
/// <returns></returns>
|
||
public static Decimal ToDecimal<T>(T data, Decimal defValue)
|
||
{
|
||
//如果为空则返回默认值
|
||
if (data == null || Convert.IsDBNull(data))
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
try
|
||
{
|
||
return Convert.ToDecimal(data);
|
||
}
|
||
catch
|
||
{
|
||
return defValue;
|
||
}
|
||
}
|
||
|
||
|
||
/// <summary>
|
||
/// 将数据转换为Decimal 转换失败返回 默认值
|
||
/// </summary>
|
||
/// <param name="data">数据</param>
|
||
/// <param name="defValue">默认值</param>
|
||
/// <returns></returns>
|
||
public static Decimal ToDecimal(object data, Decimal defValue)
|
||
{
|
||
//如果为空则返回默认值
|
||
if (data == null || Convert.IsDBNull(data))
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
try
|
||
{
|
||
return Convert.ToDecimal(data);
|
||
}
|
||
catch
|
||
{
|
||
return defValue;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 将数据转换为Decimal 转换失败返回 默认值
|
||
/// </summary>
|
||
/// <param name="data">数据</param>
|
||
/// <param name="defValue">默认值</param>
|
||
/// <returns></returns>
|
||
public static Decimal ToDecimal(string data, Decimal defValue)
|
||
{
|
||
//如果为空则返回默认值
|
||
if (string.IsNullOrEmpty(data))
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
decimal temp = 0;
|
||
|
||
if (decimal.TryParse(data, out temp))
|
||
{
|
||
return temp;
|
||
}
|
||
else
|
||
{
|
||
return defValue;
|
||
}
|
||
}
|
||
|
||
|
||
#endregion
|
||
|
||
#region 将数据转换为DateTime
|
||
/// <summary>
|
||
/// string转DateTime
|
||
/// </summary>
|
||
public static DateTime ToDateTime(this string value)
|
||
{
|
||
DateTime? val = ToNullableDateTime(value);
|
||
if (val == null)
|
||
return DateTime.MinValue;
|
||
return val.Value;
|
||
}
|
||
|
||
/// <summary>
|
||
/// string转DateTime?
|
||
/// </summary>
|
||
public static DateTime? ToNullableDateTime(this string value)
|
||
{
|
||
DateTime? result = null;
|
||
|
||
if (!string.IsNullOrWhiteSpace(value))
|
||
{
|
||
DateTime dt;
|
||
if (DateTime.TryParse(value, out dt))
|
||
{
|
||
result = dt;
|
||
}
|
||
}
|
||
|
||
return result;
|
||
}
|
||
/// <summary>
|
||
/// 将数据转换为DateTime 转换失败返回默认值
|
||
/// </summary>
|
||
/// <typeparam name="T">数据类型</typeparam>
|
||
/// <param name="data">数据</param>
|
||
/// <param name="defValue">默认值</param>
|
||
/// <returns></returns>
|
||
public static DateTime ToDateTime<T>(T data, DateTime defValue)
|
||
{
|
||
//如果为空则返回默认值
|
||
if (data == null || Convert.IsDBNull(data))
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
try
|
||
{
|
||
return Convert.ToDateTime(data);
|
||
}
|
||
catch
|
||
{
|
||
return defValue;
|
||
}
|
||
}
|
||
|
||
|
||
/// <summary>
|
||
/// 将数据转换为DateTime 转换失败返回 默认值
|
||
/// </summary>
|
||
/// <param name="data">数据</param>
|
||
/// <param name="defValue">默认值</param>
|
||
/// <returns></returns>
|
||
public static DateTime ToDateTime(object data, DateTime defValue)
|
||
{
|
||
//如果为空则返回默认值
|
||
if (data == null || Convert.IsDBNull(data))
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
try
|
||
{
|
||
return Convert.ToDateTime(data);
|
||
}
|
||
catch
|
||
{
|
||
return defValue;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 将数据转换为DateTime 转换失败返回 默认值
|
||
/// </summary>
|
||
/// <param name="data">数据</param>
|
||
/// <param name="defValue">默认值</param>
|
||
/// <returns></returns>
|
||
public static DateTime ToDateTime(string data, DateTime defValue)
|
||
{
|
||
//如果为空则返回默认值
|
||
if (string.IsNullOrEmpty(data))
|
||
{
|
||
return defValue;
|
||
}
|
||
|
||
DateTime temp = DateTime.Now;
|
||
|
||
if (DateTime.TryParse(data, out temp))
|
||
{
|
||
return temp;
|
||
}
|
||
else
|
||
{
|
||
return defValue;
|
||
}
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 半角全角转换
|
||
/// <summary>
|
||
/// 转全角的函数(SBC case)
|
||
/// </summary>
|
||
/// <param name="input">任意字符串</param>
|
||
/// <returns>全角字符串</returns>
|
||
///<remarks>
|
||
///全角空格为12288，半角空格为32
|
||
///其他字符半角(33-126)与全角(65281-65374)的对应关系是：均相差65248
|
||
///</remarks>
|
||
public static string ConvertToSBC(string input)
|
||
{
|
||
//半角转全角：
|
||
char[] c = input.ToCharArray();
|
||
for (int i = 0; i < c.Length; i++)
|
||
{
|
||
if (c[i] == 32)
|
||
{
|
||
c[i] = (char)12288;
|
||
continue;
|
||
}
|
||
if (c[i] < 127)
|
||
{
|
||
c[i] = (char)(c[i] + 65248);
|
||
}
|
||
}
|
||
return new string(c);
|
||
}
|
||
|
||
|
||
/// <summary> 转半角的函数(DBC case) </summary>
|
||
/// <param name="input">任意字符串</param>
|
||
/// <returns>半角字符串</returns>
|
||
///<remarks>
|
||
///全角空格为12288，半角空格为32
|
||
///其他字符半角(33-126)与全角(65281-65374)的对应关系是：均相差65248
|
||
///</remarks>
|
||
public static string ConvertToDBC(string input)
|
||
{
|
||
char[] c = input.ToCharArray();
|
||
for (int i = 0; i < c.Length; i++)
|
||
{
|
||
if (c[i] == 12288)
|
||
{
|
||
c[i] = (char)32;
|
||
continue;
|
||
}
|
||
if (c[i] > 65280 && c[i] < 65375)
|
||
c[i] = (char)(c[i] - 65248);
|
||
}
|
||
return new string(c);
|
||
}
|
||
#endregion
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
#region object转string
|
||
/// <summary>
|
||
/// object转string
|
||
/// </summary>
|
||
public static string ToString(this object value)
|
||
{
|
||
string result = null;
|
||
|
||
if (value != null)
|
||
{
|
||
result = value.ToString();
|
||
}
|
||
|
||
return result;
|
||
}
|
||
#endregion
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
#region double?转double
|
||
/// <summary>
|
||
/// double?转double
|
||
/// </summary>
|
||
public static double ToDouble(this double? value)
|
||
{
|
||
if (value != null) return value.Value;
|
||
return 0;
|
||
}
|
||
#endregion
|
||
|
||
#region long?转long
|
||
/// <summary>
|
||
/// long?转long
|
||
/// </summary>
|
||
public static long ToInt64(this long? value)
|
||
{
|
||
if (value != null) return value.Value;
|
||
return 0;
|
||
}
|
||
#endregion
|
||
|
||
#region int?转int
|
||
/// <summary>
|
||
/// int?转int
|
||
/// </summary>
|
||
public static int ToInt32(this int? value)
|
||
{
|
||
if (value != null) return value.Value;
|
||
return 0;
|
||
}
|
||
#endregion
|
||
}
|
||
}
|