NInject在函数中使用

public class Baoming : IHttpHandler
    {
        [Inject]
        public IBLL.IChildrensInfo ChildrensInfoBLL { get; set; }
public void Save()
{
//下面就直接使用 ChildrenInfoBLL，报错未将引用设置到对象的实例
}
}

public void Save()
{
IKernel kernel = new StandardKernel();
            kernel.Bind<IBLL.IChildrensInfo>().To<BLL.ChildrensInfo>();
            kernel.Bind<IDAL.IChildrensInfo>().To<DAL.ChildrensInfo>();
            IBLL.IChildrensInfo ChildrensInfoBLL = kernel.Get<IBLL.IChildrensInfo>();
//......
}