改变图元id的问题

ftr.Name := edm.Text;
ftr.Update(EmptyParam,EmptyParam);

斑竹，以上的代码会出错，说变量类型与付值不符，请问该如何改变图元的id. <img src="images/post/smile/dvbbs/em11.gif" />

肯定会出误！
ftr.name 是一个只读属性。

我想改图元的id，有办法吗？怎么弄？

图元的id是只读的，不可以改！

以前我看到有此类的文章，但现在找不到了，不知道谁看到过，直到的请告知，谢谢！

下面是MAPX的帮助文档，你可以看看！
Feature.FeatureID property (Feature object)
Purpose

This property returns the ID of the feature. Each feature in a layer contains a unique ID within the layer. This is an Integer value and is read-only. This is the default property for the Feature object.

Note:Although this property is still a functional part of MapX, it is recommended that you use the Feature.FeatureKey.  The FeatureKey property is used to identify a unique record in a table.  In previous versions, the FeatureID property was used for this purpose, but it did not work correctly for seamless and remote layers.  The FeatureKey property works for all layer types

是不能改的

看来只能先建一个另时的ftr变量，然后把图元clone给它，然后把图元删除，修改ftr的属性。再添加新图元ftr，不知道这样行不行！