網絡數據集NetWork Dataset(INetworkDataset)的三種獲取方式

從geodatabase feature dataset（fds）中獲取網絡數據集

從shapefile workspace (de>shpWSde>)中獲取網絡數據集

  1 IFeatureDatasetExtensionContainer fdsExtCont = fds as IFeatureDatasetExtensionContainer; 2 IFeatureDatasetExtension fdsExt = fdsExtCont.FindExtension(esriDTNetworkDataset); 3 IDatasetContainer2 dsCont = fdsExt as IDatasetContainer2;                    4 IDataset dataset = dsCont.DatasetByName(esriDTNetworkDataset, "Street_ND"); 5 INetworkDataset networkDataset = dataset as INetworkDataset;

 

 

 

 

  IWorkspaceExtensionManager wsExtMgr = shpWS as IWorkspaceExtensionManager;
UID myUID = new UIDClass();
myUID.Value= "esriGeoDatabase.NetworkDatasetWorkspaceExtension";
IWorkspaceExtension wsExt = wsExtMgr.FindExtension(myUID); 
IDatasetContainer2 dsCont = wsExt as IDatasetContainer2;
IDataset dataset = dsCont.DatasetByName(esriDTNetworkDataset, "Street_ND");
INetworkDataset networkDataset = dataset as INetworkDataset;

從SDC workspace (de>sdcWSde>)中獲取網絡數據集

IWorkspaceExtensionManager wsExtMgr = sdcWS as IWorkspaceExtensionManager;UID myUID = new UIDClass();
myUID.Value = "esriGeoDatabase.NetworkDatasetWorkspaceExtension";
IWorkspaceExtension wsExt = wsExtMgr.FindExtension(myUID);
IDatasetContainer2 dsCont = wsExt as IDatasetContainer2;
IDataset dataset = dsCont.DatasetByName(esriDTNetworkDataset, "Street_ND");
INetworkDataset networkDataset = dataset as INetworkDataset;