showFirst Method

Gets or sets a value that indicates whether the first data point is formatted differently for each sparkline in this sparkline group.

Syntax

Javascript (Usage)
Javascript (Specification)

var instance = new GcSpread.Sheets.SparklineSetting(setting);
var returnValue; // Type: boolean
returnValue = instance.showFirst(value);

function showFirst( 
   value : boolean
) : boolean;

Parameters

value: Whether to display the first data point with a different format.

Return Value

true if the first data point is formatted differently; otherwise, false.

Example

This example creates a sparkline.

Javascript

var data = new GcSpread.Sheets.Range(1, 0, 8, 1);
var setting = new GcSpread.Sheets.SparklineSetting();
setting.showMarkers(true);
setting.lineWeight = 3;
setting.displayXAxis = true;
setting.showFirst(true);
setting.showLast(true);
setting.showLow(true);
setting.showHigh(true);
setting.showNegative(true);

setting.seriesColor('Text 2 1');
setting.firstMarkerColor('Text 2 3');
setting.negativeColor('Accent 2 1');
setting.markersColor('Accent 3 1');
setting.lowMarkerColor('Accent 4 1');
setting.highMarkerColor('Accent 6 1');
setting.lastMarkerColor('Accent 6 6');
setting.axisColor('Text 1 1');

sheet.addSpan(13, 0, 4, 3, null);

sheet.setSparkline(13, 0, data, GcSpread.Sheets.DataOrientation.Vertical, GcSpread.Sheets.SparklineType.line, setting);

sheet.setValue(1, 0, 1);
sheet.setValue(2, 0, -2);
sheet.setValue(3, 0, -1);
sheet.setValue(4, 0, 6);
sheet.setValue(5, 0, 4);
sheet.setValue(6, 0, -4);
sheet.setValue(7, 0, 3);
sheet.setValue(8, 0, 8);

Reference

SparklineSetting class