ArcGIS Developer Help

INAClassFieldMap Interface

Provides access to the the mapping of input fields to output fields.

Product Availability

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

Members

	Name	Description
	Count	The count of field mappings defined.
	CreateMapping	Creates a new field name mapping.
	DefaultValue	The default field value for a given input field name.
	FieldName	The mapping for the given index.
	MappedField	The output field name mapped to a given input field name.
	Remove	Removes the entry for an existing field name mapping.

Classes that implement INAClassFieldMap

Classes	Description
NAClassFieldMap	Defines one field mapping.

Remarks

The INAClassFieldMap interface provides access to a collection of field map items. When used with NAClassLoader::Load, each field map item associates a field in the input row with a field in a NAClass.

The DefaultValue property is used when the input row has a null field value or no field mapping is specified.

[C#]

// Map the "Name" field of a Stops NAClass to the "Restaurant" field of an input feature class

ESRI.ArcGIS.NetworkAnalyst.INAClass stopsClass = naContext.NAClasses.get_ItemByName("Stops") as ESRI.ArcGIS.NetworkAnalyst.INAClass;

ESRI.ArcGIS.NetworkAnalyst.INAClassFieldMap naClassFieldMap = new ESRI.ArcGIS.NetworkAnalyst.NAClassFieldMapClass();

naClassFieldMap.CreateMapping(stopsClass.ClassDefinition, inputFeatureClass.Fields);

naClassFieldMap.set_MappedField("Name", "Restaurant");

[Visual Basic .NET]

' set up field map 
Dim stopsClass As INAClass =  naContext.NAClasses.ItemByName("Stops")
Dim naClassFieldMap As INAClassFieldMap =  New NAClassFieldMap() 
naClassFieldMap.CreateMapping(stopsClass.ClassDefinition, inputFeatureClass.Fields)
naClassFieldMap.MappedField("Name") = "Restaurant"

.NET Samples

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