DataReader转 object对象

protected object AssembleObject(Type type, System.Data.IDataReader reader)
            {
                object o = Activator.CreateInstance(type);

                if (o == null)
                    return null;

                PropertyInfo[] properties = type.GetProperties();//声明一个获取类型属性的变量

                for (int i = 0; i < reader.FieldCount; i++)
                {
                    PropertyInfo property = type.GetProperty(reader.GetName(i));//得到第i列的所有属性
                    object val = reader[i];//第i列

                    if (val != DBNull.Value && property != null && property.CanWrite)//判断对象是否为空，属性是否为空，属性是否可写！如果都为true
                        property.SetValue(o, reader[i].ToString(), null);//o对象，reader[i]对象的新值，索引器空的
                }

                return o;
            }