using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Reflection;
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namespace iWareCommon.Utils
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{
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/// <summary>
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/// 用于属性属性赋值操作的帮助类
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/// </summary>
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/// <typeparam name="T">原对象类</typeparam>
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/// <typeparam name="S">目标对象类</typeparam>
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public class EntityPropHelper<T,S> where T:class where S:class
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{
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/// <summary>
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/// 将t中的各个对于的属性值赋值到s中相应的属性
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/// </summary>
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/// <param name="t">原对象</param>
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/// <param name="s">目标对象</param>
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/// <param name="columnMap">以T中的属性名为键,S中的属性名为值的字典</param>
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public static void CopyProp(T t, S s, Dictionary<string,string> columnMap)
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{
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Type typeT = typeof(T);
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Type typeS = typeof(S);
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var sProps = typeS.GetProperties(BindingFlags.Public | BindingFlags.Instance).ToList();
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var sPropDic = new Dictionary<string, PropertyInfo>();
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var keys = columnMap.Keys;
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var values = columnMap.Values;
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//遍历S的所有属性,将符合修改的存入字典中
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sProps.ForEach(p => { if (values.Contains(p.Name)) { sPropDic.Add(p.Name, p); } });
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var tProps = typeT.GetProperties(BindingFlags.Public | BindingFlags.Instance).ToList();
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var tPropDic = new Dictionary<string, PropertyInfo>();
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//遍历S的所有属性,将符合修改的存入字典中
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tProps.ForEach(p => { if (keys.Contains(p.Name)) { tPropDic.Add(p.Name, p); } });
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foreach(var key in keys)
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{
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var propValue = tPropDic[key].GetValue(t, null);
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sPropDic[columnMap[key]].SetValue(s, propValue, null);
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}
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}
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/// <summary>
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/// 将s中的各个对于的属性值赋值到t中相应的属性
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/// </summary>
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/// <param name="t">目标对象</param>
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/// <param name="s">原对象</param>
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/// <param name="columnMap">以T中的属性名为键,S中的属性名为值的字典</param>
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public static void CopyProp(S s,T t , Dictionary<string, string> columnMap)
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{
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Type typeT = typeof(T);
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Type typeS = typeof(S);
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var sProps = typeS.GetProperties(BindingFlags.Public | BindingFlags.Instance).ToList();
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var sPropDic = new Dictionary<string, PropertyInfo>();
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var keys = columnMap.Keys;
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var values = columnMap.Values;
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//遍历S的所有属性,将符合修改的存入字典中
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sProps.ForEach(p => { if (values.Contains(p.Name)) { sPropDic.Add(p.Name, p); } });
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var tProps = typeT.GetProperties(BindingFlags.Public | BindingFlags.Instance).ToList();
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var tPropDic = new Dictionary<string, PropertyInfo>();
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//遍历S的所有属性,将符合修改的存入字典中
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tProps.ForEach(p => { if (keys.Contains(p.Name)) { tPropDic.Add(p.Name, p); } });
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foreach (var key in keys)
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{
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var propValue = sPropDic[columnMap[key]].GetValue(s, null);
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tPropDic[key].SetValue(t, propValue, null);
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}
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}
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/// <summary>
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/// 将t中的各个对于的属性值赋值到s中相应的属性
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/// </summary>
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/// <param name="t">原对象</param>
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/// <param name="s">目标对象</param>
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/// <param name="columnMap">以T中的属性名为键,S中的属性名为值的字典</param>
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public static void CopyProp(T t, S s,List<string> propNames)
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{
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Type typeT = typeof(T);
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Type typeS = typeof(S);
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var sProps = typeS.GetProperties(BindingFlags.Public | BindingFlags.Instance).ToList();
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var sPropDic = new Dictionary<string, PropertyInfo>();
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//遍历S的所有属性,将符合修改的存入字典中
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sProps.ForEach(p => { if (propNames.Contains(p.Name)) { sPropDic.Add(p.Name, p); } });
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var tProps = typeT.GetProperties(BindingFlags.Public | BindingFlags.Instance).ToList();
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var tPropDic = new Dictionary<string, PropertyInfo>();
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//遍历S的所有属性,将符合修改的存入字典中
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tProps.ForEach(p => { if (propNames.Contains(p.Name)) { tPropDic.Add(p.Name, p); } });
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foreach (var propName in propNames)
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{
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var propValue = tPropDic[propName].GetValue(t, null);
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sPropDic[propName].SetValue(s, propValue, null);
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}
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}
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}
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}
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