using System.Linq.Expressions;
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using System.Reflection;
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namespace Furion.Extras.Admin.NET.Util
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{
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public class DataCompareUtil<T1, T2>
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{
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public DataCompareUtil(
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Expression<Func<T1, object>> SelectorKey_1,
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Expression<Func<T2, object>> SelectorKey_2
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)
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{
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Propertys = new List<View_Property>();
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T_1 = typeof(T1);
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T_2 = typeof(T2);
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KeyProperty = new View_Property()
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{
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Property_1 = T_1.GetProperty(GetPropertyName(SelectorKey_1)),
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Property_2 = T_2.GetProperty(GetPropertyName(SelectorKey_2))
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};
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}
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private List<View_Property> Propertys { get; set; }
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private Type T_1 { get; set; }
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private Type T_2 { get; set; }
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private View_Property KeyProperty { get; set; }
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public void PushCompare(
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Expression<Func<T1, object>> Selector_1,
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Expression<Func<T2, object>> Selector_2
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)
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{
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Propertys.Add(new View_Property()
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{
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Property_1 = T_1.GetProperty(GetPropertyName(Selector_1)),
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Property_2 = T_2.GetProperty(GetPropertyName(Selector_2))
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});
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}
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public View_DataCompare<T1, T2> Compare(
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List<T1> Data_1,
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List<T2> Data_2
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)
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{
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View_DataCompare<T1, T2> data = new View_DataCompare<T1, T2>();
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Dictionary<string, T1> dic_Contain_2 = new Dictionary<string, T1>();
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Dictionary<string, T2> dic_Contain_1 = new Dictionary<string, T2>();
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foreach (var item_1 in Data_1)
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{
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foreach (var item_2 in Data_2)
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{
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bool IsDifferent = false;
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foreach (var Property_item in Propertys)
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{
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if (!IsDifferent)
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{
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if (Property_item.Property_1 == null || Property_item.Property_2 == null)
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{
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if (Property_item.Property_1 == null && Property_item.Property_2 == null)
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{
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break;
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}
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else
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{
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IsDifferent = true;
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}
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}
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else
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{
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var obj_value1 = Property_item.Property_1.GetValue(item_1);
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var obj_value2 = Property_item.Property_2.GetValue(item_2);
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if (obj_value1 != null && obj_value2 != null)
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{
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if (obj_value1 is decimal @decimal && obj_value2 is decimal @decimal2 && @decimal != @decimal2)
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{
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IsDifferent = true;
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}
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else if (obj_value1 is int @intl && obj_value2 is int @int2 && @intl != @int2)
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{
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IsDifferent = true;
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}
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else if (obj_value1 is Guid @Guidl && obj_value2 is Guid @Guid2 && @Guidl != @Guid2)
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{
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IsDifferent = true;
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}
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else if (obj_value1 is DateTime @DateTimel && obj_value2 is DateTime @DateTime2 && @DateTimel != @DateTime2)
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{
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IsDifferent = true;
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}
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else
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{
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if (obj_value1.ToString() != obj_value2.ToString())
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IsDifferent = true;
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}
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}
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else if (obj_value1 != null || obj_value2 != null)
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{
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IsDifferent = true;
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}
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}
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}
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else
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{
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break;
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}
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}
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if (!IsDifferent)
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{
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//item_1与item_2相同
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string key_1 = KeyProperty.Property_1.GetValue(item_1).ToString();
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if (!dic_Contain_2.ContainsKey(key_1))
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{
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dic_Contain_2.Add(key_1, item_1);
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data.Contain_2.Add(item_1);
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}
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string key_2 = KeyProperty.Property_2.GetValue(item_2).ToString();
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if (!dic_Contain_1.ContainsKey(key_2))
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{
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dic_Contain_1.Add(key_2, item_2);
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data.Contain_1.Add(item_2);
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}
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}
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}
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}
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foreach (var item_1 in Data_1)
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{
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string key_1 = KeyProperty.Property_1.GetValue(item_1).ToString();
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if (!dic_Contain_2.ContainsKey(key_1))
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{
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data.NoContain_2.Add(item_1);
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}
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}
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foreach (var item_2 in Data_2)
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{
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string key_2 = KeyProperty.Property_2.GetValue(item_2).ToString();
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if (!dic_Contain_1.ContainsKey(key_2))
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{
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data.NoContain_1.Add(item_2);
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}
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}
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return data;
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}
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public static string GetPropertyName<T>(Expression<Func<T, object>> expr)
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{
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var rtn = "";
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if (expr.Body is UnaryExpression expression)
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{
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rtn = ((MemberExpression)expression.Operand).Member.Name;
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}
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else if (expr.Body is MemberExpression expression2)
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{
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rtn = expression2.Member.Name;
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}
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else if (expr.Body is ParameterExpression expression1)
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{
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rtn = expression1.Type.Name;
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}
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return rtn;
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}
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}
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public class View_DataCompare<T1, T2>
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{
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public View_DataCompare()
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{
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Contain_2 = new List<T1>();
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Contain_1 = new List<T2>();
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NoContain_2 = new List<T1>();
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NoContain_1 = new List<T2>();
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}
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/// <summary>
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/// 2号数据源中存在
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/// </summary>
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public List<T1> Contain_2 { get; set; }
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/// <summary>
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/// 1号数据源中存在
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/// </summary>
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public List<T2> Contain_1 { get; set; }
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/// <summary>
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/// 2号数据源中不存在
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/// </summary>
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public List<T1> NoContain_2 { get; set; }
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/// <summary>
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/// 1号数据源中不存在
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/// </summary>
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public List<T2> NoContain_1 { get; set; }
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}
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public class View_Property
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{
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public PropertyInfo Property_1 { get; set; }
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public PropertyInfo Property_2 { get; set; }
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}
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}
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