DataTable转List

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

namespace Utils
{
    public class ModelConvertHelper<T> where T : new()
    {
        public static IList<T> ConvertToModel(DataTable dt)
        {
            // 定义集合    
            IList<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.ToUpper()))
                    {
                        // 判断此属性是否有Setter      
                        if (!pi.CanWrite) continue;

                        object value = dr[tempName];

                        if (value != DBNull.Value)
                            try
                            {
                                if (pi.PropertyType.ToString().Contains("System.Nullable"))
                                {
                                    value = Convert.ChangeType(value, Nullable.GetUnderlyingType(pi.PropertyType));
                                }
                                else
                                {
                                    value = Convert.ChangeType(value, pi.PropertyType);
                                }
                                pi.SetValue(t, value, null);
                            }
                            catch (Exception)
                            {
                            }
                    }
                }
                ts.Add(t);
            }
            return ts;
        }
    }
}

 

posted @ 2019-06-27 15:37 _York 阅读(...) 评论(...) 编辑 收藏