用DataTable填充实体类List

        /// <summary> 
        /// 用DataTable填充实体类List
        /// </summary> 
        public static List<T> FillListModel<T>(DataTable dt)
        where T : new()
        {
            if (dt == null || dt.Rows.Count == 0)
            {
                return null;
            }
            List<T> modelList = new List<T>();
            foreach (DataRow dr in dt.Rows)
            {
                //T model = (T)Activator.CreateInstance(typeof(T)); 
                T model = new T();
                for (int i = 0; i < dr.Table.Columns.Count; i++)
                {
                    PropertyInfo propertyInfo = model.GetType().GetProperty(dr.Table.Columns[i].ColumnName);
                    if (propertyInfo != null && dr[i] != DBNull.Value)
                        propertyInfo.SetValue(model, dr[i], null);
                }

                modelList.Add(model);
            }
            return modelList;
        }

        /// <summary> 
        /// 用DataTable填充实体类取DataTable中的第一条数据
        /// </summary> 
        public static T FillModel<T>(DataTable dt)
        where T : new()
        {
            if (dt == null || dt.Rows.Count == 0)
            {
                return default(T);
            }
            DataRow dr = dt.Rows[0];
            //T model = (T)Activator.CreateInstance(typeof(T)); 
            T model = new T();
            for (int i = 0; i < dr.Table.Columns.Count; i++)
            {
                PropertyInfo propertyInfo = model.GetType().GetProperty(dr.Table.Columns[i].ColumnName);
                if (propertyInfo != null && dr[i] != DBNull.Value)
                    propertyInfo.SetValue(model, dr[i], null);
            }


            return model;
        }