由图层判断数据源类型

通过IWorkspaceName接口的WorkspaceFactoryProgID属性来判断

IFeatureClass pFC = pFeatureLyr.FeatureClass; IDataset dataset = pFC as IDataset; IWorkspaceName ws = ((IDatasetName)(dataset.FullName)).WorkspaceName; if (ws.WorkspaceFactoryProgID.IndexOf("AccessWorkspaceFactory") > -1) {

} else if (ws.WorkspaceFactoryProgID.IndexOf("FileGDBWorkspaceFactory") > -1) {

} else if (ws.WorkspaceFactoryProgID.IndexOf("SdeWorkspaceFactory") > -1) {

} ……

WorkspaceFactoryProgID

• esriDataSourcesGDB.AccessWorkspaceFactory
• esriDataSourcesFile.ArcInfoWorkspaceFactory
• esriDataSourcesFile.CadWorkspaceFactory
• esriDataSourcesGDB.FileGDBWorkspaceFactory
• esriDataSourcesOleDB.OLEDBWorkspaceFactory
• esriDataSourcesFile.PCCoverageWorkspaceFactory
• esriDataSourcesRaster.RasterWorkspaceFactory
• esriDataSourcesGDB.SdeWorkspaceFactory
• esriDataSourcesFile.ShapefileWorkspaceFactory
• esriDataSourcesOleDB.TextFileWorkspaceFactory
• esriDataSourcesFile.TextFileWorkspaceFactory
• esriDataSourcesFile.TinWorkspaceFactory
• esriDataSourcesFile.VpfWorkspaceFactory