How to specify a Spread Cell Range for a Chart using R1C1 notation

Posted by: mikedempsey on 8 September 2017, 2:34 pm EST

  • Posted 8 September 2017, 2:34 pm EST

    I have no problem charting a range of cells in a Spread control if I specify the range using A1 notation but I can not get it to work with R1C1 notation.

    Since my app generates data on the fly (from database tables) my spreadsheets always use R1C1 references, since I have no idea what is in which column - or even how many columns there will be.

    Is there a way to specify that I want to use R1C1 notation in the Chart.SeriesDataField() function?
       Chart.SeriesDataField(Spread, "Col2", "Sheet1!R1C2:R5C2")
    instead of:
       Chart.SeriesDataField(Spread, "ColB", "Sheet1!$B$1:$B$5")

    If not, is there a function available to convert integers to their corresponding Letter strings?


  • Replied 8 September 2017, 2:34 pm EST


    Here is the code I used with R1C1 reference style and it works fine at my end. Please have a look at the code and let me know if it helps.

                FarPoint.Win.Chart.BarSeries series = new FarPoint.Win.Chart.BarSeries();

                series.BarShape = FarPoint.Win.Chart.BarShape.FullCone;

                series.Values.DataSource = new FarPoint.Win.Spread.Chart.SeriesDataField(fpSpread1, "Values", "Sheet1!R1C1:R5C1");

                series.CategoryNames.DataSource = new FarPoint.Win.Spread.Chart.SeriesDataField(fpSpread1, "Text", "Sheet1!R1C2:R5C2", FarPoint.Win.Spread.Chart.SegmentDataType.Text);

                FarPoint.Win.Chart.YPlotArea plotArea = new FarPoint.Win.Chart.YPlotArea();

                plotArea.Location = new PointF(0.2f, 0.2f);

                plotArea.Size = new SizeF(0.6f, 0.6f);


                FarPoint.Win.Chart.LabelArea label = new FarPoint.Win.Chart.LabelArea();

                label.Text = this.fpSpread1.ActiveSheet.Cells[0, 1].Text;

                label.Location = new PointF(0.5f, 0.02f);

                label.AlignmentX = 0.5f;

                label.AlignmentY = 0.0f;

                FarPoint.Win.Chart.ChartModel model = new FarPoint.Win.Chart.ChartModel();



                FarPoint.Win.Spread.Chart.SpreadChart chart = new FarPoint.Win.Spread.Chart.SpreadChart();

                chart.Size = new Size(533, 300);

                chart.Location = new Point(10, 20);

                chart.Model = model;

                FarPoint.Win.Chart.FpChart fpchart1 = new FarPoint.Win.Chart.FpChart();


                fpchart1.Location = new Point(60, 60);

                fpchart1.Size = new Size(600, 600);

                fpchart1.Model = model;
  • Replied 8 September 2017, 2:34 pm EST

    I think my problem was that I forgot that RnCn notation is 1 based rather than zero based.

    My test referenced R0 in one of the entries ... and that's what killed it.


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