IPlugInDatasetHelper Interface

Provides access to members that help Plug-In datasets.

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Description

This interface must be implemented by the plug-in dataset helper class of a plug-in data source.

Members

	All Properties Methods	Description
	Bounds	The extent of the dataset.
	ClassCount	The number of classes in the dataset.
	ClassIndex	The index of the named class.
	ClassName	The name of the indicated class.
	FetchAll	Gets all the records in the database.
	FetchByEnvelope	Gets the records within the envelope (or the full extent if the envelope is null).
	FetchByID	Gets a record by object id.
	Fields	The field set of the indicated class.
	OIDFieldIndex	The index of the oid field in the field set of the indicated dataset.
	ShapeFieldIndex	The index of the shape field in the field set of the indicated dataset.

CoClasses that implement IPlugInDatasetHelper

Remarks

In the following, the term 'class' is used as a general terming meaning 'feature class or table'.  Some of the methods on this interface have a classIndex parameter, because these methods can have different results for different classes within a feature dataset.  If the dataset is not a feature dataset, the parameter will always have a value of 0 and may be ignored by the implementation.  If the dataset is a feature dataset, the value will be the index of a feature class in the dataset (0 <= classIndex < result of get_ClassCount).

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