通过IWorkspaceName接口的WorkspaceFactoryProgID属性来判断 图层数据源类型。
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
没有整理与归纳的知识，一文不值！高度概括与梳理的知识，才是自己真正的知识与技能。 永远不要让自己的自由、好奇、充满创造力的想法被现实的框架所束缚，让创造力自由成长吧！ 多花时间，关心他（她）人，正如别人所关心你的。理想的腾飞与实现，没有别人的支持与帮助，是万万不能的。
本文转自wenglabs博客园博客，原文链接：http://www.cnblogs.com/arxive/p/6017405.html
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