Copy Properties－阿尼

同事問了一個問題：

假如有兩個物件(A和B)，這兩個物件分屬不同類別，且大多數的屬性都一樣，但彼此沒有繼承關係，也不能修改原始類別的程式碼。要如何快速將物件A的屬性值全部複製給物件B？？

思考了一下，由於功力不深，所以只想得出PropertyInfo類別。

首先定義ClassA及ClassB

public class ClassA {

    public string Str1 { get; set; }

    public string Str2 { get; set; }

    public string Str3 { get; set; }

    public string Str4 { get; set; }

    public string Str5 { get; set; }

    public string Str6 { get; set; }

    public string Str7 { get; set; }

    public string Str8 { get; set; }

    public string Str9 { get; set; }

    public string Str10 { get; set; }

    public string Str11 { get; set; }

    public string Str12 { get; set; }

    public string Str13 { get; set; }

    public string Str14 { get; set; }

    public string Str15 { get; set; }

    public string Str16 { get; set; }

    public string Str17 { get; set; }

    public string Str18 { get; set; }

    public string Str19 { get; set; }

    public string Str20 { get; set; }

    public string Str21 { get; set; }

    public string Str22 { get; set; }

    public string Str23 { get; set; }

    public string Str24 { get; set; }

    public string Str25 { get; set; }

    public string Str26 { get; set; }

    public string Str27 { get; set; }

    public string Str28 { get; set; }

    public string Str29 { get; set; }

    public string Str30 { get; set; }

    public string Str31 { get; set; }

    public string Str32 { get; set; }

    public string Str33 { get; set; }

    public string Str34 { get; set; }

    public string Str35 { get; set; }

    public string Str36 { get; set; }

    public string Str37 { get; set; }

    public string Str38 { get; set; }

    public string Str39 { get; set; }

    public string Str40 { get; set; }

    public string Str41 { get; set; }

    public string Str42 { get; set; }

    public string Str43 { get; set; }

    public string Str44 { get; set; }

    public string Str45 { get; set; }

    public string Str46 { get; set; }

    public string Str47 { get; set; }

    public string Str48 { get; set; }

    public string Str49 { get; set; }

    public string Str50 { get; set; }

    public string Str51 { get; set; }

    public string Str52 { get; set; }

    public string Str53 { get; set; }

    public string Str54 { get; set; }

    public string Str55 { get; set; }

    public string Str56 { get; set; }

    public string Str57 { get; set; }

    public string Str58 { get; set; }

    public string Str59 { get; set; }

    public string Str60 { get; set; }

    public string Str61 { get; set; }

    public string Str62 { get; set; }

    public string Str63 { get; set; }

    public string Str64 { get; set; }

    public string Str65 { get; set; }

    public string Str66 { get; set; }

    public string Str67 { get; set; }

    public string Str68 { get; set; }

    public string Str69 { get; set; }

    public string Str70 { get; set; }

    public string Str71 { get; set; }

    public string Str72 { get; set; }

    public string Str73 { get; set; }

    public string Str74 { get; set; }

    public string Str75 { get; set; }

    public string Str76 { get; set; }

    public string Str77 { get; set; }

    public string Str78 { get; set; }

    public string Str79 { get; set; }

    public string Str80 { get; set; }

    public string Str81 { get; set; }

    public string Str82 { get; set; }

    public string Str83 { get; set; }

    public string Str84 { get; set; }

    public string Str85 { get; set; }

    public string Str86 { get; set; }

    public string Str87 { get; set; }

    public string Str88 { get; set; }

    public string Str89 { get; set; }

    public string Str90 { get; set; }

    public string Str91 { get; set; }

    public string Str92 { get; set; }

    public string Str93 { get; set; }

    public string Str94 { get; set; }

    public string Str95 { get; set; }

    public string Str96 { get; set; }

    public string Str97 { get; set; }

    public string Str98 { get; set; }

    public string Str99 { get; set; }

    public string Str100 { get; set; }

}

public class ClassB {

    public string Str1 { get; set; }

    public string Str2 { get; set; }

    public string Str3 { get; set; }

    public string Str4 { get; set; }

    public string Str5 { get; set; }

    public string Str6 { get; set; }

    public string Str7 { get; set; }

    public string Str8 { get; set; }

    public string Str9 { get; set; }

    public string Str10 { get; set; }

    public string Str11 { get; set; }

    public string Str12 { get; set; }

    public string Str13 { get; set; }

    public string Str14 { get; set; }

    public string Str15 { get; set; }

    public string Str16 { get; set; }

    public string Str17 { get; set; }

    public string Str18 { get; set; }

    public string Str19 { get; set; }

    public string Str20 { get; set; }

    public string Str21 { get; set; }

    public string Str22 { get; set; }

    public string Str23 { get; set; }

    public string Str24 { get; set; }

    public string Str25 { get; set; }

    public string Str26 { get; set; }

    public string Str27 { get; set; }

    public string Str28 { get; set; }

    public string Str29 { get; set; }

    public string Str30 { get; set; }

    public string Str31 { get; set; }

    public string Str32 { get; set; }

    public string Str33 { get; set; }

    public string Str34 { get; set; }

    public string Str35 { get; set; }

    public string Str36 { get; set; }

    public string Str37 { get; set; }

    public string Str38 { get; set; }

    public string Str39 { get; set; }

    public string Str40 { get; set; }

    public string Str41 { get; set; }

    public string Str42 { get; set; }

    public string Str43 { get; set; }

    public string Str44 { get; set; }

    public string Str45 { get; set; }

    public string Str46 { get; set; }

    public string Str47 { get; set; }

    public string Str48 { get; set; }

    public string Str49 { get; set; }

    public string Str50 { get; set; }

    public string Str51 { get; set; }

    public string Str52 { get; set; }

    public string Str53 { get; set; }

    public string Str54 { get; set; }

    public string Str55 { get; set; }

    public string Str56 { get; set; }

    public string Str57 { get; set; }

    public string Str58 { get; set; }

    public string Str59 { get; set; }

    public string Str60 { get; set; }

    public string Str61 { get; set; }

    public string Str62 { get; set; }

    public string Str63 { get; set; }

    public string Str64 { get; set; }

    public string Str65 { get; set; }

    public string Str66 { get; set; }

    public string Str67 { get; set; }

    public string Str68 { get; set; }

    public string Str69 { get; set; }

    public string Str70 { get; set; }

    public string Str71 { get; set; }

    public string Str72 { get; set; }

    public string Str73 { get; set; }

    public string Str74 { get; set; }

    public string Str75 { get; set; }

    public string Str76 { get; set; }

    public string Str77 { get; set; }

    public string Str78 { get; set; }

    public string Str79 { get; set; }

    public string Str80 { get; set; }

    public string Str81 { get; set; }

    public string Str82 { get; set; }

    public string Str83 { get; set; }

    public string Str84 { get; set; }

    public string Str85 { get; set; }

    public string Str86 { get; set; }

    public string Str87 { get; set; }

    public string Str88 { get; set; }

    public string Str89 { get; set; }

    public string Str90 { get; set; }

    public int Str91 { get; set; }

    public int Str92 { get; set; }

    public int Str93 { get; set; }

    public int Str94 { get; set; }

    public int Str95 { get; set; }

    public int Str96 { get; set; }

    public int Str97 { get; set; }

    public int Str98 { get; set; }

    public int Str99 { get; set; }

    public int Str100 { get; set; }

}

接著產生物件A、物件B

ClassA a = new ClassA() {

            Str1 = "Str1",

            Str2 = "Str2",

            Str3 = "Str3",

            Str4 = "Str4",

            Str5 = "Str5",

            Str6 = "Str6",

            Str7 = "Str7",

            Str8 = "Str8",

            Str9 = "Str9",

            Str10 = "Str10",

            Str11 = "Str11",

            Str12 = "Str12",

            Str13 = "Str13",

            Str14 = "Str14",

            Str15 = "Str15",

            Str16 = "Str16",

            Str17 = "Str17",

            Str18 = "Str18",

            Str19 = "Str19",

            Str20 = "Str20",

            Str21 = "Str21",

            Str22 = "Str22",

            Str23 = "Str23",

            Str24 = "Str24",

            Str25 = "Str25",

            Str26 = "Str26",

            Str27 = "Str27",

            Str28 = "Str28",

            Str29 = "Str29",

            Str30 = "Str30",

            Str31 = "Str31",

            Str32 = "Str32",

            Str33 = "Str33",

            Str34 = "Str34",

            Str35 = "Str35",

            Str36 = "Str36",

            Str37 = "Str37",

            Str38 = "Str38",

            Str39 = "Str39",

            Str40 = "Str40",

            Str41 = "Str41",

            Str42 = "Str42",

            Str43 = "Str43",

            Str44 = "Str44",

            Str45 = "Str45",

            Str46 = "Str46",

            Str47 = "Str47",

            Str48 = "Str48",

            Str49 = "Str49",

            Str50 = "Str50",

            Str51 = "Str51",

            Str52 = "Str52",

            Str53 = "Str53",

            Str54 = "Str54",

            Str55 = "Str55",

            Str56 = "Str56",

            Str57 = "Str57",

            Str58 = "Str58",

            Str59 = "Str59",

            Str60 = "Str60",

            Str61 = "Str61",

            Str62 = "Str62",

            Str63 = "Str63",

            Str64 = "Str64",

            Str65 = "Str65",

            Str66 = "Str66",

            Str67 = "Str67",

            Str68 = "Str68",

            Str69 = "Str69",

            Str70 = "Str70",

            Str71 = "Str71",

            Str72 = "Str72",

            Str73 = "Str73",

            Str74 = "Str74",

            Str75 = "Str75",

            Str76 = "Str76",

            Str77 = "Str77",

            Str78 = "Str78",

            Str79 = "Str79",

            Str80 = "Str80",

            Str81 = "Str81",

            Str82 = "Str82",

            Str83 = "Str83",

            Str84 = "Str84",

            Str85 = "Str85",

            Str86 = "Str86",

            Str87 = "Str87",

            Str88 = "Str88",

            Str89 = "Str89",

            Str90 = "Str90",

            Str91 = "Str91",

            Str92 = "Str92",

            Str93 = "Str93",

            Str94 = "Str94",

            Str95 = "Str95",

            Str96 = "Str96",

            Str97 = "Str97",

            Str98 = "Str98",

            Str99 = "Str99",

            Str100 = "Str100"

        };

        ClassB b = new ClassB();

最後就是複製的動作了

Type typeB = typeof(ClassB);

PropertyInfo[] propertiesA = typeof(ClassA).GetProperties(BindingFlags.Public | BindingFlags.Instance);

foreach (PropertyInfo infoA in propertiesA) {

    string name = infoA.Name;

    PropertyInfo infoB = typeB.GetProperty(name, BindingFlags.Public | BindingFlags.Instance);

    if (infoB != null && infoA.PropertyType == infoB.PropertyType) {

        infoB.SetValue(b, infoA.GetValue(a, null), null);

    }

}