IDataStatistics Interface

Provides access to members to generate statistics on a field.

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Members

	Name	Description
	Cancelled	Indicates if the operation has been cancelled.
	Continue	Indicates if the cursor contains more records than the current sample.
	Cursor	The cursor which will generate the statistics.
	Field	The field for which to gather statistics.
	SampleRate	The maximum number of records to sample at a time (-1 means pull all records).
	SimpleStats	Indicates whether only simple statistics are generated.
	Statistics	The statistics for the current field over the current cursor.
	UniqueValueCount	The number of unique values for the current sample.
	UniqueValues	The unique values for the current field over the current cursor.

CoClasses that implement IDataStatistics

Remarks

The IDataStatistics object is the lone interface on the DataStatistics object and provides access to statistical information and unique values for the specified field.  The data to perform the analysis on is provided via an ICursor object attached to the DataStatistics object through the IDataStatistics::Cursor property.

Cursors can only be traversed once, which needs to be kept in mind when accessing statistical information and unique values.  For instance, it is necessary to re-execute the original query and set the Cursor property to the new cursor between accessing the Statistics and UniqueValues properties.

The UniqueValueCount property will return zero until you have retrieved the set of unique values from the UniqueValues property.

When accessing the Statistics property, the Field property should be set to the name of a numeric field. Attempting to retrieve Statistics for a non-numeric field will raise an error.

See Also

DataStatistics Class

.NET Samples