Mapx用xml创建点图层

     Mapx4.*中,并不支持xml,到5以后,创建ds支持xml了,听起来很美,但是,在网上居然没有找到一个说这个的,难道mapx就没人用了吗?

     只好就着mapx的帮助,慢慢实验,比较麻烦的是xml的格式。例子中倒是有

 

Sample A

<xml xmlns:s="urn:schema-microsoft-com:xml-data" xmlns:ds="urn:schemas-microsoft-com:rowset" xmlns:dt="urn:schemas-microsoft-com:datatypes" xmlns:x="#DatsetSchema">

<!-- schema -->

<s:schema>

<s:elementType name='row' content='eltOnly'>

<s:attributeType name='StateAbbr' dt:type='string'/>

<s:attributeType name='StateName' dt:type='string'/>

<s:attributeType name='StatePop' dt:type='14'/>

<extends type='rowbase'/>

</s:elementType>

</s:schema>

<!-- data -->

<ds:data>

<x:row StateAbbr ='AK'StateName='Alaska' StatePop='550043'/>

<x:row StateAbbr ='NY' StateName='New York' StatePop='17990455'/>

</ds:data>

</xml>

Sample B

<xml xmlns="#xmldataset">

<!-- schema -->

<schema>

<elementType name='row' content='eltOnly'>

<attributeType name='StateAbbr' type='string'/>

<attributeType name='StateName' type='string'/>

<attributeType name='StatePop' type='14'/>

<extends type='rowbase'/>

</elementType>

</schema>

<data>

<row StateAbbr ='AK'StateName='Alaska'StatePop=' 550043'/>

<row StateAbbr ='NY' StateName='New York' StatePop='17990455'/>

</data>

</xml>

 

     结果,报错,另外我的想法是要在xml中放xy的数据,所以进行改造,结果就报这个错:

     看了bindlayer的属性,没有哪个跟关键字有关系的,只好在xml中找,可这个东西让人完全迷惑,还找不到有用的资料。msdn中schma的介绍又云山雾罩的,找到很多类似的,如:

rs:number=2 rs:nullable=true rs:maydefer=true rs:writeunknown=true

     明显感觉应该就是这个东西控制列的属性描述,但始终找不到那个词。最终,在整个互联网上找到这么一个:

http://zhidao.baidu.com/question/10915787.html?si=1

     <s:AttributeType name='ID' rs:number='1' rs:maydefer='true' rs:writeunknown='true' rs:basetable='ReadHistory'
rs:basecolumn='ID' rs:keycolumn='true' rs:autoincrement='true'>

      就是我要的东西,修改xml,成功!

posted @ 2008-07-23 12:25  jetz  阅读(539)  评论(0编辑  收藏  举报