I have a problem where if I set the UltraChart.PieChart3D.ColumnIndex to a value other than -1 (the default) or to the column index of the first numeric column in my datatable, the Others wedge isn't drawn in the pie. It seems like a UltraChart bug to me.

I have a DataTable with 3 columns (String, Double, Double). By default, the pie chart uses the 1st column as the labels and charts the 2nd column. If I use the PieChart3D.ColumnIndex (or PieChart3D.SetDataColumnIndex method) to chart the 3rd column instead, the pie is drawn as if the Others wedge had 0 value.

I can work around this by swaping the 2nd and 3rd columns, but wanted to check to see if there was something simpler that I had missed.

Here's code for a form that demonstrates the problem:

    public partial class Form1 : Form
    {
        private const String PIE_CHART_LABEL_MULTILINE = "<ITEM_LABEL>\n<DATA_VALUE:#,##0.00>\n<PERCENT_VALUE:#0.00>%";
        private Infragistics.Win.UltraWinChart.UltraChart ultraChart1;

        public Form1()
        {
            this.SuspendLayout();

            ultraChart1 = new Infragistics.Win.UltraWinChart.UltraChart();
            ultraChart1.Dock = DockStyle.Fill;
            this.Controls.Add(ultraChart1);

            this.ResumeLayout();

            this.Load += new EventHandler(Form1_Load);
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            DataTable dataTable = new DataTable();
            DataColumn textCol = new DataColumn("Text", typeof(String));
            DataColumn numCol1 = new DataColumn("Num1", typeof(Double));
            DataColumn numCol2 = new DataColumn("Num2", typeof(Double));
            dataTable.Columns.AddRange(new DataColumn[ { textCol, numCol1, numCol2 });

            dataTable.Rows.Add(new object[ { "A", -1, 20 });
            dataTable.Rows.Add(new object[ { "B", 10, 50 });
            dataTable.Rows.Add(new object[ { "C", -15, 10 });
            dataTable.Rows.Add(new object[ { "D", 51, 4 });
            dataTable.Rows.Add(new object[ { "E", 31, 5 });
            dataTable.Rows.Add(new object[ { "F", -21, 120 });
            dataTable.Rows.Add(new object[ { "G", 81, 60 });
            dataTable.Rows.Add(new object[ { "H", 21, 30 });

            ultraChart1.DataSource = dataTable;
            ultraChart1.ChartType = Infragistics.UltraChart.Shared.Styles.ChartType.PieChart3D;
            ultraChart1.Legend.Visible = true;
            ultraChart1.PieChart3D.Labels.FormatString = PIE_CHART_LABEL_MULTILINE;
            ultraChart1.Tooltips.FormatString = PIE_CHART_LABEL_MULTILINE;
            ultraChart1.PieChart3D.OthersCategoryPercent = 10.0;

            // Leave this at the default value of -1 or set it to 1 and the Others wedge is drawn.
            //
            // Set it to anything else and the Others wedge isn't drawn and:
            // - Others shows up in the legend
            // - Percentages in the Tooltip are correct (taking Others into account)
            // - Percentages in the Labels are wrong (they ignore the value of the Others)
            //
            // I've worked around it by using DataColumn.SetOrdinal() to move the column I want to
            // chart into the position of the first numeric column.
            ultraChart1.PieChart3D.ColumnIndex = 2;
            // ultraChart1.PieChart3D.SetDataColumnIndex(2);

            ultraChart1.DataBind();
        }
    }
 

--yale