ArcGIS Developer Help

INAContextEdit Interface

Provides access to the editable properties of a network analysis context.

Product Availability

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server. Requires Network Analyst Extension.

Members

	Name	Description
	AbortEditOperation	Cancels an edit operation in progress.
	Bind	Prepare the context for analysis based upon the current network dataset schema.
	ClearInputNAObjects	Empty NAClasses that are defined as input or input/output.
	ClearOutputNAObjects	Empty NAClasses that are defined as output only.
	ContextChanged	Message all of the network analysis agents that the analysis context has changed.
	CreateAnalysisClass	Create a new analysis class based upon the given class definition.
	HasRedos	Indicates if any redo operations are available.
	HasUndos	Indicates if any undo operations are available.
	Initialize	Prepare the context for analysis.
	IsBeingEdited	Indicates if the class is currently being edited.
	Locator	The locator used for finding network locations.
	RedoEditOperation	Repeats the last edit operation.
	Result	The result of the analysis.
	ResultChanged	Message all of the network analysis agents that the analysis results have changed.
	Solver	The function used for the analysis.
	StartEditing	Starts an edit session.
	StartEditOperation	Starts an edit operation.
	StopEditing	Stops an edit session.
	StopEditOperation	Stops an edit operation.
	UndoEditOperation	Cancels the last edit operation and returns to the state before it was started.

Classes that implement INAContextEdit

Classes	Description
NAContext	The analysis and problem definition container.

Remarks

The INAContextEdit interface is used to set up some of the internal references to objects and to manage edit operations within the NAClasses.

You must call Bind after calling CreateContext on NASolver. Solvers must call Initialize when they create the NAContext. If updating NALocationObjects outside of ArcMap, the methods to perform edits within an edit operation can be used. However, if edits are being done within ArcMap, it is recommended that the edit operation methods on the NAWindow's INAWindow be used instead so ArcMap's undo/redo stack remains in sync.

The Result and Solver properties should only be set from within a custom solver.

.NET Samples

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