IWorkspaceFactory pWordspeaceFateory =
new ESRI.ArcGIS.DataSourcesGDB.AccessWorkspaceFactory();
new ESRI.ArcGIS.DataSourcesGDB.SdeWorkspaceFactory();
IPropertySet ps = new PropertySetClass();
// ps.SetProperty("DATABASE", init.shp + "Bus.mdb");//本地Access
ps.SetProperty("Server", "10.212.250.241");
ps.SetProperty("INSTANCE", "5151");
ps.SetProperty("Database", "sde");
ps.SetProperty("Version", "sde.default");
ps.SetProperty("User", "sde");
ps.SetProperty("Password", "sdesde");
pFeatureWorkspace = pWordspeaceFateory.Open(ps, 0) as IFeatureWorkspace;//为数据库内容