Two classes with the same attributes are converted to each other.

At work, two classes have the same attributes, but they are two different classes. There are many attributes and it is very difficult to convert each other. So I came up with the following method, to achieve mutual conversion, please advise:

Public static List <T2> ConvertT1ToT2 <T1, T2> (List <T1> resouceList) where T1: new () where T2: new ()

{

T1 resouce = new T1 ();

T2 target = new T2 ();

List <T2> targetList = new List <T2> ();

PropertyInfo [] resoucePropinfos = null;

PropertyInfo [] targetPropinfos = null;

If (resoucePropinfos = null)

{

Type objtype = resouce. GetType ();

ResoucePropinfos = objtype. GetProperties ();

}

If (targetPropinfos = null)

{

Type objtype = target. GetType ();

TargetPropinfos = objtype. GetProperties ();

}

Foreach (T1 t1 in resouceList)

{

Hashtable resouceHashtable = new Hashtable ();

T2 tempTarget = new T2 ();

Foreach (PropertyInfo property in resoucePropinfos)

{

ResouceHashtable. Add (property. Name, property. GetValue (t1, null ));

}

Foreach (PropertyInfo property in targetPropinfos)

{

Property. SetValue (tempTarget, SetType (resouceHashtable [property. Name], property. PropertyType), null );

} TargetList. Add (tempTarget );

} Return targetList;

}

Public static object SetType (this object value, Type conversionType)

{

If (conversionType. IsGenericType & conversionType. GetGenericTypeDefinition (). Equals (typeof (Nullable <> )))

{

If (value! = "" & Value! = Null)

{

NullableConverter nullableConverter = new NullableConverter (conversionType );

ConversionType = nullableConverter. UnderlyingType;

}

Else

{

Return null;

}

}

Return System. Convert. ChangeType (value, conversionType );

}

Call instance:

Public class A1 {

Public string a1 {get; set ;}

Public string a2 {get; set ;}

Public A1 (string a1, string a2)

{

This. a1 = a1;

This. a2 = a2;

}

Public A1 (){}

}

Public class B1

{

Public String A1 {Get; set ;}

Public int A2 {Get; set ;}

Public String A3 {Get; set ;}

Public B1 (string A1, int A2)

{

This. A1 = A1;

This. A2 = a2;

}

Public B1 (){}

}

 

List <A1> list1 = new list <A1> ();

A1 a1 = new A1 ();

A1.a1 = "11 ";

A1.a2 = "12 ";

List1.add (A1 );

A1 a2 = new A1 ();

A2.a1 = "21 ";

A2.a2 = "22 ";

List1.add (A2 );

A1 a3 = new A1 ();

A3.a1 = "31 ";

A3.a2 = "32 ";

List1.Add (a3 );

B1 b1 = new B1 ();

List <B1> Listb2 = ConvertT1ToT2 <A1, B1> (list1 );