TRSLegendListBox Class

Create(TComponent)

Initializes a new instance of the TRSLegendListBox class.

Destroy

Represents the destructor of the TRSLegendListBox class.

Chart

Specifies the chart that the legend should display values from. Note that this property will be set automatically to the active chart of a chart panel if the   Panel property is set.

EnableSelection

Controls whether the legend will allow you to select chart values from the legend. In other words, as you click items in the legend, do the chart's values get Selected or not? Set EnableSelection to true if you want the user to be able to select chart values.

Note that if EnableSelection is true, MultiSelect is automatically true as the legend must display the selected chart values. Set EnableSelection to false if you want the legend to ignore user clicks on items.

LegendStyle

Controls the text style of the legend, e.g., what are the labels of the chart. (See TRSLegendStyle for more information). The legend uses the LegendStyle to determine what items to display in the chart. If the LegendStyle is lsAutomatic, the legend shows the Captions of the TRSCustomCharts (if the   Panel is not nil and there is more than one chart attached to the panel) or the Captions of the TRSChartValues (if Panel is nil or there is only one chart attached to the Panel).

LegendTextStyle

Defines the format for the labels in the legend. See TRSLegendTextStyle for more information.

NeedsUpdate

Represents property NeedsUpdate.

Options

Specifies the options for the legend box or glyph

Panel

Specifies the TRSChartPanel that the legend should display charts and/or values for. Set the Panel property if you want the legend to display a legend similar to the Legend of the TRSChartPanel. In this case, the legend will display all the chart names if there is more than one chart attached to the panel. However, if there is only one chart attached to the panel, the legend would display the chart's values. To only display one chart's values, leave the Panel property blank and set the   Chart property.

ShowCheckBoxes

Controls whether the legend shows check boxes for the visibility of the chart or chart values. Set ShowCheckBoxes to true if you want the legend to show check boxes. The check boxes will be checked for all visible charts or chart values. The user can then check or uncheck the boxes to control the visibility of the chart or values. Set ShowCheckBoxes to false to hide the check boxes and prevent the user from changing chart or value visibilities.

ShowScrollBars

Represents property ShowScrollBars.

AddObject(TFmxObject)

Represents method AddObject(TFmxObject).

Change

Represents method Change.

ChartAdded(TRSCustomChart)

Called when chart is added to panel

ChartChanged(TRSCustomChart)

Called when a chart or a chart value has changed

ChartDeleted(TRSCustomChart)

Called when chart is deleted/removed from panel

DoApplyItemStyleLookup(TObject)

Represents method DoApplyItemStyleLookup(TObject).

DoChangeCheck(TListBoxItem)

Represents method DoChangeCheck(TListBoxItem).

DoPaintChartValue(TObject,TCanvas)

Represents method DoPaintChartValue(TObject,TCanvas).

GetDefaultStyleLookupName

Represents method GetDefaultStyleLookupName.

Invalidate

Represents method Invalidate.

Notification(TComponent,TOperation)

Represents method Notification(TComponent,TOperation).

Painting

Represents method Painting.

PanelChange

Called when the panel has changed and everything needs to be refreshed

RebuildLegend

Rebuilds the items of the legend. Call this method to force the legend list box to update. Usually, you should never need to call this method because the legend ensures its items are updated before painting itself. In rare cases, however, you may want to force the legend to update itself immediately and not wait until painting itself.

The legend fills its Items property based on the values in the     Chart and/or     Panel properties. The Objects of the Items: TStrings contains the associated FMX.RS.ChartPanel.TRSCustomChart or FMX.RS.ChartPanel.TRSChartValue object.
 

SelectionChanged(TObject)

Called when FMX.RS.ChartPanel.TRSChartValue.Selected property has changed

ValueChanged(TRSCustomChart,TRSChartValue)

Called when a chart value has changed.

The Value = nil when ALL values have been changed

VisibleChanged(TObject)

Called when FMX.RS.ChartPanel.TRSCustomChart.Visible property or the TRSChartValue.Visible property has changed