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/*
* 作用：反射获取/设置属性数据。
* */
using System;
using System.Collections;
using System.Collections.Generic;
using System.Reflection;
namespace Helper.Core.Library
{
#region 逻辑处理辅助枚举
public enum ReflectionTypeEnum : int
{
/// <summary>
/// 原始反射
/// </summary>
Original = 1,
/// <summary>
/// 表达式反射
/// </summary>
Expression = 2,
/// <summary>
/// Emit 反射
/// </summary>
Emit = 3
}
#endregion
public class ReflectionHelper
{
#region 对外公开方法
#region 创建/属性检测
/// <summary>
/// 根据 Type 创建实例
/// </summary>
/// <param name="type">Type</param>
/// <returns></returns>
public static object New(Type type)
{
return Activator.CreateInstance(type, true);
}
/// <summary>
/// 根据 Type 创建 IList 实例
/// </summary>
/// <param name="itemType">Type</param>
/// <returns></returns>
public static IList NewList(Type itemType)
{
Type newListType = typeof(List<>);
newListType = newListType.MakeGenericType(new Type[] { itemType });
return Activator.CreateInstance(newListType) as IList;
}
/// <summary>
/// 判断 Type 是否是自定义类型
/// </summary>
/// <param name="type">Type</param>
/// <returns></returns>
public static bool IsCustomType(Type type)
{
return (type != typeof(object) && Type.GetTypeCode(type) == TypeCode.Object);
}
/// <summary>
/// 判断 Type 是否 IList 类型
/// </summary>
/// <param name="type">Type</param>
/// <returns></returns>
public static bool IsListType(Type type)
{
return (type.GetInterface("IList") != null);
}
/// <summary>
/// 判断 Type 是否包含属性
/// </summary>
/// <param name="type">Type</param>
/// <param name="propertyName">属性名称</param>
/// <returns></returns>
public static bool IsContainProperty(Type type, string propertyName)
{
return type.GetProperty(propertyName) != null;
}
/// <summary>
/// 获得 List<T> 中 T 的类型
/// </summary>
/// <param name="propertyInfo">PropertyInfo</param>
/// <returns></returns>
public static Type GetListGenericType(PropertyInfo propertyInfo)
{
PropertyInfo[] childPropertyList = propertyInfo.PropertyType.GetProperties();
foreach (PropertyInfo childPropertyInfo in childPropertyList)
{
if (childPropertyInfo.Name == "Item") return childPropertyInfo.PropertyType;
}
return null;
}
/// <summary>
/// 获取泛型对象的 T 类型
/// </summary>
/// <param name="type">Type</param>
/// <returns></returns>
public static Type GetGenericType(Type type)
{
Type itemType = type.GetGenericArguments()[0];
return itemType;
}
#endregion
#region 属性列表获取/遍历
/// <summary>
/// 属性列表遍历
/// </summary>
/// <param name="callback">属性处理函数</param>
/// <param name="type">Type</param>
public static void Foreach(Action<PropertyInfo> callback, Type type)
{
PropertyInfo[] propertyList = type.GetProperties();
foreach (PropertyInfo propertyInfo in propertyList)
{
callback(propertyInfo);
}
}
/// <summary>
/// 获取属性名和属性值
/// </summary>
/// <param name="data">实体数据</param>
/// <returns></returns>
public static Dictionary<string, object> GetPropertyDict(object data)
{
if (data == null) return null;
Dictionary<string, object> resultDict = new Dictionary<string, object>();
Foreach((PropertyInfo propertyInfo) =>
{
resultDict.Add(propertyInfo.Name, propertyInfo.GetValue(data));
}, data.GetType());
return resultDict;
}
#endregion
#region 原始反射获取设置属性值
/// <summary>
/// 获取索引值
/// </summary>
/// <param name="data">实体数据</param>
/// <param name="indexName">索引器名称</param>
/// <returns></returns>
public static object GetPropertyIndexValue(object data, object indexName)
{
var method = data.GetType().GetMethod("get_Item", new Type[] { indexName.GetType() });
return method.Invoke(data, new object[] { indexName });
}
/// <summary>
/// 获取属性值
/// </summary>
/// <param name="data">实体数据</param>
/// <param name="propertyInfo">PropertyInfo</param>
/// <returns></returns>
public static object GetPropertyValue(object data, PropertyInfo propertyInfo)
{
if (propertyInfo == null) return null;
return propertyInfo.GetValue(data, null);
}
/// <summary>
/// 获取属性值
/// </summary>
/// <param name="data">实体数据</param>
/// <param name="propertyName">属性名称</param>
/// <returns></returns>
public static object GetPropertyValue(object data, string propertyName)
{
if (data == null) return null;
return GetPropertyValue(data, data.GetType().GetProperty(propertyName));
}
/// <summary>
/// 设置属性值
/// </summary>
/// <param name="data">实体数据</param>
/// <param name="propertyValue">要设置的数据</param>
/// <param name="propertyName">属性名称</param>
public static void SetPropertyValue(object data, object propertyValue, string propertyName)
{
SetPropertyValue(data, propertyValue, data.GetType().GetProperty(propertyName));
}
/// <summary>
/// 设置属性值
/// </summary>
/// <param name="data">实体数据</param>
/// <param name="propertyValue">要设置的数据</param>
/// <param name="propertyInfo">PropertyInfo</param>
/// <returns></returns>
public static void SetPropertyValue(object data, object propertyValue, PropertyInfo propertyInfo)
{
if (propertyValue == null) return;
if (propertyValue.GetType() == typeof(string))
{
if (propertyInfo.PropertyType == typeof(int))
{
data.GetType().GetProperty(propertyInfo.Name).SetValue(data, int.Parse(propertyValue.ToString()), null);
}
else if (propertyInfo.PropertyType == typeof(string))
{
data.GetType().GetProperty(propertyInfo.Name).SetValue(data, propertyValue, null);
}
else if (propertyInfo.PropertyType == typeof(float))
{
data.GetType().GetProperty(propertyInfo.Name).SetValue(data, float.Parse(propertyValue.ToString()), null);
}
else if (propertyInfo.PropertyType == typeof(DateTime))
{
data.GetType().GetProperty(propertyInfo.Name).SetValue(data, DateTime.Parse(propertyValue.ToString()), null);
}
}
else
{
data.GetType().GetProperty(propertyInfo.Name).SetValue(data, propertyValue, null);
}
}
#endregion
#endregion
}
}