TcxGridChartController.DataDrillDown(Integer) Method

Performs a drill-down on the specified category value of the active data group.

Declaration

function DataDrillDown(AValueIndex: Integer): Boolean; virtual;

Parameters

Name	Type
AValueIndex	Integer

Returns

Type
Boolean

Remarks

The AValueIndex parameter references the category value by its index in the active data group’s Values zero-based collection. This function returns True when a drill-down was successful. Otherwise, False is returned.

Alternatively, you can assign a category value to the active data group’s ActiveValue property to perform a drill-down on this value.

Note

A drill-down cannot be performed on the default categories which represent the highest level of detail.

End-users are able to drill down data using the data level navigator. To determine whether an end-user is able to drill down on a particular category value, call the IsDataDrillDownPossible function.

To perform a drill-up, call the DataDrillUp function.