Steema Central

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private Steema.TeeChart.Styles.Bar Series1;

        private void InitializeChart()
        {
            tChart1.Aspect.View3D = false;
            tChart1.Series.Add(Series1 = new Steema.TeeChart.Styles.Bar());

            System.Data.DataSet data = GetData();
            Series1.DataSource = data;

            Series1.XValues.DataMember = "ID";
            Series1.YValues.DataMember = "Y";
            Series1.LabelMember = "Name";
            double ValueX, ValueY;
            ValueX = 0;
            ValueY = 0;
            for (int i = 0; i < Series1.Count; i++)
            {

                if (ValueX == Series1.XValues[i] && ValueY == Series1.YValues[i])
                {
                    Series1.XValues.RemoveAt(i);
                    Series1.YValues.RemoveAt(i);
                }

                ValueX = Series1.XValues[i];
                ValueY = Series1.YValues[i];
            }
        }

        private System.Data.DataSet GetData()
        {
            System.Data.DataSet data = new System.Data.DataSet();
            System.Data.DataTable table = new System.Data.DataTable("Customers");

            table.Columns.Add("ID", typeof(int));
            table.Columns.Add("Y", typeof(double));
            table.Columns.Add("Name", typeof(string));

            data.Tables.Add(table);

            Random y = new Random();
            double row4 = y.Next(100);
            table.Rows.Add(1, y.Next(100), "Customer A");
            table.Rows.Add(2, y.Next(100), "Customer B");
            table.Rows.Add(3, y.Next(100), "Customer C");
            // example of dubplicate rows. 
            table.Rows.Add(4, row4, "Customer D");
            table.Rows.Add(4, row4, "Customer D");

            return data;
        }