利用SuperMap Objects控件实现地图显示、地图浏览和属性查询等简单的GIS功能的基础上，通过对话框方式打开数据源，并实现空间查询和编辑功能。-Supermap objects of control for the map shows, browse for properties map and simple queries on the basis of gis functions by way of open source dialog box, and to query and