IFeatureLayer和IFeatureClass的Search方法的区别

<P>查看IfeatureLayer的Search方法的帮助，如下：</P>
<P>If there is a definition query set on the layer, the <STRONG>Search </STRONG>method will work on the subset of features in the layer that meet the definition criteria. Otherwise, it will search the <B>FeatureClass</B> associated with the layer.</P>
<P>This <STRONG>Search</STRONG> method will not work on joined fields. If the <STRONG>FeaureLayer</STRONG> has any joins, you should use the <STRONG>IGeoFeatureLayer::SeachDisplayFeatures </STRONG>method instead.</P>
<DIV>值得注意的是，如果图层没有设置definition query ，那么两者的结果没有差别，但是如果图层设置了definition query ，那么就有差别了，呵呵。</DIV>
<DIV > </DIV>
<DIV >也就是说，在开发过程中，如果是针对图层数据的操作，那么用IfeatureLayer的Search比较合理，如果是针对图层对应的数据源的操作，那么使用IfeatureClass的search才能保证所有的数据被遍历。</DIV>

....哦~不太明白