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Navigation: Code Documentation > RSCharting > RSGraphCharts > Classes > TRSGraphChartValues > Methods

TRSGraphChartValues.Add(TRSChartValueType,String,TCanvasColor,Integer) Method

Creates a new RSGraphCharts.TRSGraphChartValue instance and adds it to the Items array. The new instance is initialized with the X, Caption, Color, and ImageIndex parameters. Call Add to create a graph chart value, or node, in the collection. The new value is placed at the end of the Items array, or, if the collection is Sorted, placed at the sorted point in the collection.

Add returns the new graph chart value.

Namespace: RSGraphCharts

Parameters

Type: TRSChartValueType

Caption

Type: String

Color

Type: TCanvasColor

ImageIndex

Type: Integer

Return Value

Type: TRSGraphChartValue

The following example creates values in the collection:

Delphi

var
   Value: TRSGraphChartValue;  // note, this type should be the same that the chart uses (e.g., TRS2DChartValue, TRSArrowChartValue, etc)
begin
   Value := MyChart.Values.Add;
   Value.Caption := 'One';
   Value.Color := clRed;
   Value.X := 10.0;
   Value.Y := 20.0;
   Value.Width := 30;
   Value.Height := 40;
   Value.ImageIndex := 0;
   // this code adds the same point but much more quickly
   Value := MyChart.Values.Add( RSRect(10.0, 20.0, 30.0, 40.0), 'One', clRed, 0 );
end;

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Return Value

Reference