ArcGIS Developer Help

IWorkspaceExtensionManager Interface

Provides access to members that manage a workspace extension.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Members

	Name	Description
	Extension	The workspace extension at this index.
	ExtensionCount	The number of workspace extensions.
	FindExtension	Finds the specified workspace extension by its globally unique id.
	RegisterExtension	Registers this workspace extension with the database making it required for successful connection to this database.
	UnRegisterExtension	UnRegisters this workspace extension making it no longer required for successful connection to this database.

Classes that implement IWorkspaceExtensionManager

Classes	Description
VersionedWorkspace	VersionedWorkspace Object.
Workspace	Workspace Object.

Remarks

IWorkspaceExtensionManager is an optional interface supported by Personal, File and ArcSDE geodatabase workspaces. The FindExtension method returns a reference to a workspace extension given its GUID. An application can also discover and iterate over all extensions using the ExtensionCount and Extension properties.

[C#]

The following code demonstrates how to get a reference to the IWorkspaceExtensionManager in order to access the IDatasetContainer2. The end result of which could be to create a network dataset or find a pre-existing network dataset. The code assumes you have a reference to the workspace (workspace) in which the network dataset will be created or exists. The workspace could also correspond to the folder containing a shapefile network dataset or SDC data.

 public void esriGeoDatabase__IWorkspaceExtensionManager(IWorkspace workspace)
 {
    // Cast to the IWorkspaceExtensionManager interface
    IWorkspaceExtensionManager workspaceextensionManager = (IWorkspaceExtensionManager)workspace;
            
    // Set the UID value for the workspace extention which we want to use
    UID uid = new UID();
    uid.Value = "esriGeoDatabase.NetworkDatasetWorkspaceExtension";
            
    // Get the DatasetContainer for the workspace extension
    IWorkspaceExtension workspaceExtension = workspaceextensionManager.FindExtension(uid);
    IDatasetContainer2 datasetContainer2 = (IDatasetContainer2)workspaceExtension;
    Console.WriteLine(datasetContainer2.get_DatasetCount(esriDatasetType.esriDTNetworkDataset));
 }

.NET Samples

Extending the replication synchronization process