ArcGIS Developer Help

INetworkAnalysisExtBarriers Interface

Provides access to members that manage barriers in the Network Analysis extension.

Product Availability

Available with ArcGIS Desktop.

When To Use

Use the INetworkAnalysisExtBarriers interface to manage the barriers on the current network. Using this interface, you can add and return edge and junction barriers, enable and disable feature layers, and create NetElementBarriers and SelectionSetBarriers objects to pass to a TraceFlowSolver object for performing a trace task.

Members

	Name	Description
	AddEdgeBarrier	Adds an edge barrier to the current network.
	AddJunctionBarrier	Adds a junction barrier to the current network.
	ClearBarriers	Removes all barriers from the current network.
	CreateElementBarriers	Returns a NetElementBarriers object corresponding to the barriers added to the current network.
	CreateSelectionBarriers	Returns a SelectionSetBarriers object corresponding to the currently selected features in the current network and the SelectionSemantics property.
	EdgeBarrier	Edge barrier on the current network by index.
	EdgeBarrierCount	Number of edge barriers on the current network.
	GetDisabledLayer	Gets the disabled state for the specified feature layer.
	JunctionBarrier	Junction barrier on the current network by index.
	JunctionBarrierCount	Number of junction barriers on the current network.
	SelectionSemantics	Indicates if trace tasks are performed on selected features, unselected features, or all features.
	SetDisabledLayer	Sets the disabled state for the specified feature layer.

Classes that implement INetworkAnalysisExtBarriers

Classes	Description
UtilityNetworkAnalysisExt	A container for defining the Utility Network Analysis extension and describing its current state.

.NET Samples

Custom upstream trace task