dOOdad对Web Service的支持还不够好,dOOdad的核心是DataTable,而在ADO.Net 2.0中的DataTable虽然相对1.x功能扩展了不少,微软鼓吹DataTable功能有多强多强,据说Web Service也都支持返回DataTable,但俺试了一下,发现还存在不少问题。
既然Web service不支持DataTable作返回值,所以要将业务实体类内部的信息在网络中传输,就得想其他办法。
下面是MyGeneration论坛上某网友提供的一种解决方法,基本思路是将dOOdad业务实体内中的DataTable封装到DataSet,将dataset做为参数或返回值:
//Concrete class中添加如下两个方法:
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Web Service中的代码片断:
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客户端代码:
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这个方法不错,不过有个小问题就是这个DataSet有自己的Schema,如果客户端对该web服务接口的访问量比较大的话,给网络传输带来一定的性能影响。
下一篇文章中,我将给出我自己的一个另一种实现方法,敬请关注。