144 lines
4.7 KiB
C#
144 lines
4.7 KiB
C#
using Nelibur.ObjectMapper;
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using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.ComponentModel;
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using System.ComponentModel.DataAnnotations;
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using System.Dynamic;
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using System.Linq;
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using System.Threading;
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namespace Hncore.Infrastructure.Extension
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{
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public static class ObjectExtension
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{
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/// <summary>
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/// 将对象[主要是匿名对象]转换为dynamic
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/// </summary>
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public static dynamic ToDynamic(this object obj, decimal defaultVal)
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{
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decimal result;
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if (obj != null)
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if (decimal.TryParse(obj.ToString(), out result))
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return result;
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else
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return defaultVal;
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return defaultVal;
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}
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// This extension method is broken out so you can use a similar pattern with
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// other MetaData elements in the future. This is your base method for each.
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public static T GetAttribute<T>(this object value) where T : Attribute
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{
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var type = value.GetType();
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var memberInfo = type.GetMember(value.ToString());
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if (!memberInfo.Any())
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{
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return null;
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}
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var attributes = memberInfo[0].GetCustomAttributes(typeof(T), false);
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return (T) attributes[0];
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}
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// This method creates a specific call to the above method, requesting the
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// Description MetaData attribute.
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public static string GetDescription(this object value)
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{
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var desAttribute = value.GetAttribute<DescriptionAttribute>();
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if (desAttribute != null)
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{
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return desAttribute.Description;
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}
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var displayAttribute = value.GetAttribute<DisplayAttribute>();
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if (displayAttribute != null)
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{
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return displayAttribute.Name ?? displayAttribute.Description;
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}
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return "";
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}
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#region 得到枚举字典（key对应枚举的值，value对应枚举的注释）
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/// <summary>
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/// 得到枚举字典（key对应枚举的值，value对应枚举的注释）
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/// </summary>
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/// <typeparam name="TEnum"></typeparam>
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/// <returns></returns>
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public static Dictionary<Enum, string> ToDescriptionDictionary<TEnum>()
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{
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Array values = Enum.GetValues(typeof(TEnum));
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Dictionary<Enum, string> nums = new Dictionary<Enum, string>();
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foreach (Enum value in values)
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{
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nums.Add(value, GetDescription(value));
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}
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return nums;
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}
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#endregion
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#region 实体中string属性执行Trim()
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/// <summary>
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/// 对象string属性执行Trim()
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="t"></param>
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/// <returns></returns>
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public static T ObjectStrTrim<T>(this T t) where T:new ()
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{
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if (t != null)
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{
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foreach (var pi in t.GetType().GetProperties())
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{
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if (pi.PropertyType.Equals(typeof(string)) && pi.GetValue(t, null) != null)//判断属性的类型是不是String
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{
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pi.SetValue(t, pi.GetValue(t, null).ToString().Trim(), null);//给泛型的属性赋值
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}
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}
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}
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return t;
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}
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#endregion
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#region
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public static T save<T>(this T obj,string key) where T:class,new()
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{
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Dictionary<string, object> dic = c.Value ?? new Dictionary<string, object>();
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dic.Add(key,obj);
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c.Value = dic;
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return obj;
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}
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public static AsyncLocal<Dictionary<string,Object>> c=new AsyncLocal<Dictionary<string, Object>>();
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#endregion
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#region 对象转换
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public static T MapTo<T>(this Object model)
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{
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var productDto = TinyMapper.Map<T>(model);
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return productDto;
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}
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public static IEnumerable<T> MapsTo<T>(this Object model)
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{
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var generic = model.GetType().GetGenericTypeDefinition();
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if (generic == typeof(List<>))
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{
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return TinyMapper.Map<List<T>>(model);
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}
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if (generic == typeof(Collection<>))
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{
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return TinyMapper.Map<Collection<T>>(model);
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}
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throw new Exception("不合法的转换");
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}
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#endregion
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}
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} |