利用开源GIS组件MapWinGIS,VB.NET和SQL Server相结合的方法,探讨了在VB.NET环境下嵌入地理信息系统组件,以及如何实现图层加载和操作、测量、属性表的显示等功能,并以实际开发应用为例,进一步说明了开源GIS的特点和使用原理。 【英文摘要】 Combining with open source ComGIS of MapWinGIS,VB.NET and SQL Server,this paper discussed how to embed ComGIS,and how to load layer and manipulate map and measure map and show the shapefile under the envelopment of VB.NET.Meanwhile,it took prototype system as an example and explained the characteristic and application principle of open source GIS software.