TdxRangeControlPredefinedDateHeaderScale Class

A predefined scale employed by the Date/Time Header and Scheduler data range selection and visualization models.

Declaration

delphi

TdxRangeControlPredefinedDateHeaderScale = class(
    TdxRangeControlPredefinedDateTimeScale
)

Remarks

This class provides the GetDefaultDisplayText and GetDisplayText functions overriding the corresponding virtual functions introduced in ancestor classes. These functions implement the automatic scale label formatting functionality provided by the Date/Time Header and Scheduler data range models.

A TdxRangeControlPredefinedDateHeaderScale object is referenced by:

The Scales.Day, Scales.Hour, Scales.Minute, Scales.Month, Scales.Quarter, Scales.Week, and Scales.Year properties provided by the Date/Time Header and Scheduler data range models;
The Scales.GetScale, Scales.RegisterScale, and Scales.UnRegisterScale methods provided by the same data range models.

To access the Date/Time Header scale-specific members, cast a TdxRangeControlDateTimeScale object to the TdxRangeControlPredefinedDateHeaderScale class.

Inheritance

TObject TPersistent TcxOwnedPersistent TdxRangeControlDateTimeScale TdxRangeControlPredefinedDateTimeScale TdxRangeControlPredefinedDateHeaderScale