DashboardViewer.DrillDownPerformed Event
Occurs after drill-down is performed.
Namespace: DevExpress.DashboardWin
Assembly: DevExpress.Dashboard.v18.2.Win.dll
Declaration
Event Data
The DrillDownPerformed event's data class is DrillActionEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| DashboardItemName | Gets the name of the dashboard item. |
| DrillDownLevel | Gets the drill-down level. |
| Values | Gets values from the current drill-down hierarchy. |
The event data class exposes the following methods:
| Method | Description |
|---|---|
| IsNullValue(Object) | Returns whether the specified value is DashboardSpecialValues.NullValue. |
| IsOthersValue(Object) | Returns whether the specified value is DashboardSpecialValues.OthersValue. |
Remarks
The DrillDownPerformed event is raised when end-users drill down into the specified dashboard item’s element. When an end-user returns to the previous detail level (drill up), the DashboardViewer.DrillUpPerformed event is raised.
The DrillActionEventArgs class exposes the DrillActionEventArgs.DashboardItemName property, allowing you to determine the name of the dashboard item in which drill-down (or drill-up) has been performed.
Use the DrillActionEventArgs.DrillDownLevel and DrillActionEventArgs.Values properties to obtain the current drill-down level and corresponding values from the drill-down hierarchy, respectively.
Note
The DrillActionEventArgs.Values property returns the DashboardSpecialValues.NullValue or DashboardSpecialValues.OthersValue values instead of null or “Others” values, respectively.