Report > Report Assembly Classes > ReportEvents > ReportEvents.OnBeforeChangeControlValue

ReportEvents.OnBeforeChangeControlValue

Syntax

OnBeforeChangeControlValue (Control: IPrxControl; Var Cancel: Boolean);

Parameters

Control. Regular report control that generated the event.

Cancel. Indicates whether control value change is canceled.

Description

The OnBeforeChangeControlValue method implements the event that occurs before the value of a regular report control is changed.

Comments

Available values of the Cancel parameter:

True. Control value will not be changed.
False. Control value will be changed. Default value.

On calling the method, the IPrxReportUserEvents.EventOnBeforeChangeControlValue event that can be redefined, if required, is handled in parallel in core.

Example

The property use is given in the example for IPrxReportUserEvents.EventOnBeforeChangeControlValue.