IXYEventSource Interface

Provides access to members that allow interaction with an existing XY Event Layer.

Product Availability

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

Members

		Description
	EventProperties	Property object used to define the X, Y and Z location fields.
	EventTable	Table used to initialize the XYEventSource.
	RefreshExtent	Resets the extent of the XYEventSource layer.

CoClasses that implement IXYEventSource

CoClasses and Classes	Description
XYEventSource	XY event source object.

Remarks

The IXYEventSource Interface provides information about an existing XYEventSource. It provides access to the table and the names of the fields in the table that were used to define the XYEventSource.

An XYEventSource is a dynamic point feature class which generates features based on X and Y coordinates in a table.

[Visual Basic 6.0]


The following code shows how to create a new XYEventSource from an XYEventSourceName.

	Dim pXYEvent2FieldsProperties As IXYEvent2FieldsProperties
	Set pXYEvent2FieldsProperties = New XYEvent2FieldsProperties
	With pXYEvent2FieldsProperties
	   .XFieldName = "longitude"
	   .YFieldName = "latitude"
	   .ZFieldName = ""
	End With

	Dim pSpatialReferenceFactory As ISpatialReferenceFactory
	Dim pProjectedCoordinateSystem As IProjectedCoordinateSystem

	Set pSpatialReferenceFactory = New SpatialReferenceEnvironment
	Set pProjectedCoordinateSystem = pSpatialReferenceFactory._
	   CreateProjectedCoordinateSystem (esriSRProjCS_NAD1983UTM_11N)

	Dim pXYEventSourceName As IXYEventSourceName
	Set pXYEventSourceName = New XYEventSourceName
	With pXYEventSourceName
	   Set .EventProperties = pXYEvent2FieldsProperties
	   Set .SpatialReference = pProjectedCoordinateSystem
	   Set .EventTableName = pTableName
	End With

	Dim pname As IName
	Dim pXYEventSource As IXYEventSource
	Set pname = pXYEventSourceName
	Set pXYEventSource = pname.Open

Example