打开FileGeoDatabase中要素类

private IFeatureClass OpenFileGdbFtCls(string fn)

        {

            IFeatureClass pftcls = null;

            IWorkspaceFactory wsfactory = new FileGDBWorkspaceFactoryClass();

            IWorkspace ws = wsfactory.OpenFromFile(System.IO.Path.GetDirectoryName(fn),0);

            IFeatureWorkspace fws = ws as IFeatureWorkspace;

            pftcls = fws.OpenFeatureClass(System.IO.Path.GetFileNameWithoutExtension(fn));

            return pftcls;

        }

代码如上