自动实体转化

View Model/BU Entity/DB Entity 在这写了一个自动Transform的类。很给力。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Reflection;

namespace NESO.PreOrderService.ServiceImpl
{
    public class AutoTransformersHandler
    {
        public static void Transform<T, F>(List<T> target, List<F> source)
                        where F : new()
        {
            for (int i = 0; i < target.Count; i++)
            {
                F f = new F();
                Transform<T, F>(target[i], f);
                source.Add(f);
            }
        }
        public static void Transform<T, F>(T target, F source)
        {
            PropertyInfo[] fromFields = null;
            PropertyInfo[] toFields = null;

            fromFields = typeof(T).GetProperties();
            toFields = typeof(F).GetProperties();

            SetProperties(fromFields, toFields, target, source);
        }
        public static void SetProperties(PropertyInfo[] fromFields,
                                          PropertyInfo[] toFields,
                                          object fromRecord,
                                          object toRecord)
        {
            PropertyInfo fromField = null;
            PropertyInfo toField = null;



            if (fromFields == null)
            {
                return;
            }
            if (toFields == null)
            {
                return;
            }

            for (int f = 0; f < fromFields.Length; f++)
            {

                fromField = (PropertyInfo)fromFields[f];
                for (int t = 0; t < toFields.Length; t++)
                {

                    toField = (PropertyInfo)toFields[t];

                    if (fromField.Name != toField.Name)
                    {
                        continue;
                    }

                    toField.SetValue(toRecord,
                                     fromField.GetValue(fromRecord, null),
                                     null);
                    break;
                }
            }
        }
    }
}