C#功能块代码

//dtPerson 为表，FName为表里面的字段
string[] personArry = dtPerson.AsEnumerable().Select(d => d.Field<string>("FName")).ToArray();

 public static D Mapper<D, S>(S s)
        {
            D d = Activator.CreateInstance<D>(); //构造新实例
            try
            {
                var Types = s.GetType();//获得类型  
                var Typed = typeof(D);
                foreach (PropertyInfo sp in Types.GetProperties())//获得类型的属性字段  
                {
                    foreach (PropertyInfo dp in Typed.GetProperties())
                    {
                        if (dp.Name == sp.Name && dp.PropertyType == sp.PropertyType && dp.Name != "Error" && dp.Name != "Item")//判断属性名是否相同  
                        {
                            dp.SetValue(d, sp.GetValue(s, null), null);//获得s对象属性的值复制给d对象的属性  
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            return d;
        }

//使用示例
  PTLLocalDB.T_SAP_PurchaseHeaderInfo PTLHeader = new PTLLocalDB.T_SAP_PurchaseHeaderInfo();

                    PTLHeader = PTLStartSAPFlow.Mapper<PTLLocalDB.T_SAP_PurchaseHeaderInfo, LocalDB.T_SAP_PurchaseHeaderInfo>(header);

using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
 
namespace AirTicketWinform
{
   public class ModelConvertHelper<T> where   T : new()
    {
        public static List<T> ConvertToModel(DataTable dt)    
         {    
            // 定义集合    
             List<T> ts = new List<T>(); 
     
            // 获得此模型的类型   
             Type type = typeof(T);      
            string tempName = "";      
      
            foreach (DataRow dr in dt.Rows)      
             {    
                 T t = new T();     
                // 获得此模型的公共属性      
                 PropertyInfo[] propertys = t.GetType().GetProperties(); 
                foreach (PropertyInfo pi in propertys)      
                 {      
                     tempName = pi.Name;  // 检查DataTable是否包含此列    
   
                    if (dt.Columns.Contains(tempName))      
                     {      
                        // 判断此属性是否有Setter      
                        if (!pi.CanWrite) continue;         
   
                        object value = dr[tempName];      
                        if (value != DBNull.Value)      
                             pi.SetValue(t, value, null);  
                     }     
                 }      
                 ts.Add(t);      
             }     
            return ts;     
         }     
    }
}

调用方式 MFG_DAILY_MANPOWER 为model 类名
 DataTable showTable = new DataTable();
                showTable.Columns.Add("divsion",typeof(string));
                showTable.Columns.Add("DepartCode", typeof(string));

                DataRow dr = showTable.NewRow();
                dr["divsion"] = "A";
                dr["DepartCode"] = "DA1";
                showTable.Rows.InsertAt(dr,0);
                //string result = mfgBLL.DataTableToJson(showTable);
                //string[] arr = showTable.AsEnumerable().Select(d=>d.).ToArray();
                List<MFG_DAILY_MANPOWER> ls = ModelConvertHelper<MFG_DAILY_MANPOWER>.ConvertToModel(showTable);

                return Json(new { data = ls, msg = "上次成功" }, JsonRequestBehavior.AllowGet);