C# 实体/集合差异比较，比较两个实体或集合值是否一样,将实体2的值动态赋值给实体1(名称一样的属性进行赋值)

Posted 2020-10-24 一明

 1         /// <summary>
 2         /// 实体差异比较器
 3         /// </summary>
 4         /// <param name="source">源版本实体</param>
 5         /// <param name="current">当前版本实体</param>
 6         /// <returns>true 存在变更 false 未变更</returns>
 7         protected static bool DifferenceComparison<T1, T2>(T1 source, T2 current,List<string> exclude) where T1 : MBase where T2 : MBase
 8         {
 9             Type t1 = source.GetType();
10             Type t2 = current.GetType();
11             PropertyInfo[] property1 = t1.GetProperties();
12             //排除主键和基础字段
13             //List<string> exclude = new List<string>() { "Id", "InsertTime", "UpdateTime", "DeleteTime", "Mark", "Version", "Code" };
14             foreach (PropertyInfo p in property1)
15             {
16                 string name = p.Name;
17                 if (exclude.Contains(name)) { continue; }
18                 string value1 = p.GetValue(source, null)?.ToString();
19                 string value2 = t2.GetProperty(name)?.GetValue(current, null)?.ToString();
20                 if (value1 != value2)
21                 {
22                     return true;
23                 }
24             }
25             return false;
26         }
27         /// <summary>
28         /// 集合差异比较器,比较两个实体集合值是否一样
29         /// </summary>
30         /// <param name="source">源版本实体集合</param>
31         /// <param name="current">当前版本实体集合</param>
32         /// <returns>true 存在变更 false 未变更</returns>
33         protected static bool DifferenceComparison<T1, T2>(List<T1> source, List<T2> current) where T1 : MBase where T2 : MBase
34         {
35             if (source.Count != current.Count) { return true; }
36             for (int i = 0; i < source.Count; i++)
37             {
38                 bool flag = DifferenceComparison(source[i], current[i]);
39                 if (flag) { return flag; }
40             }
41             return false;
42         }
43         /// <summary>
44         /// 将实体2的值动态赋值给实体1(名称一样的属性进行赋值)
45         /// </summary>
46         /// <param name="model1">实体1</param>
47         /// <param name="model2">实体2</param>
48         /// <returns>赋值后的model1</returns>
49         protected static T1 BindModelValue<T1, T2>(T1 model1, T2 model2) where T1 : class where T2 : class
50         {
51             Type t1 = model1.GetType();
52             Type t2 = model2.GetType();
53             PropertyInfo[] property2 = t2.GetProperties();
54             //排除主键
55             List<string> exclude = new List<string>() { "Id" };
56             foreach (PropertyInfo p in property2)
57             {
58                 if (exclude.Contains(p.Name)) { continue; }
59                 t1.GetProperty(p.Name)?.SetValue(model1, p.GetValue(model2, null));
60             }
61             return model1;
62         }

List<string> exclude用于排除实体中的字段，这些字段将不参与比较
转自:https://www.cnblogs.com/codelir/p/6856194.html