Customize Chart DataTable

[Muhammad Jamil Nawaz]

Hi,

In the chart, I have to show the chart data table. Using Data table property I make it happen. Please see in attachment. Now, problem is, there are two series, which needs to be show n legends and on the chart but don't want to show those in chart table. (in my case, these are Median Score and Trend Line).

I use following code to make this chart:

Chart1.PlotArea.XAxis.DataLabelsColumn = "DateString";
Chart1.PlotArea.YAxis.AutoScale = false;
Chart1.PlotArea.YAxis.Step = 100;
Chart1.PlotArea.YAxis.MinValue = double.Parse(dsData.Tables[0].Rows[0]["MinValue"].ToString());
Chart1.PlotArea.YAxis.MaxValue = double.Parse(dsData.Tables[0].Rows[0]["MaxValue"].ToString());

Chart1.Series.Clear();

foreach (DataColumn column in dsData.Tables[0].Columns)
{
    if (column.ColumnName.Contains("Series"))
    {
        ChartSeries series = new ChartSeries(column.ColumnName, ChartSeriesType.Point);

        series.DefaultLabelValue = "#Y";
        series.DataYColumn = column.ColumnName;

        rcCreditSummary.Series.Add(series);
    }
}

ChartSeries series1 = new ChartSeries("Median Score", ChartSeriesType.Line);

series1.DefaultLabelValue = "#Y";
series1.DataYColumn = "AvgScore";
series1.Visible = true;
series1.Appearance.LabelAppearance.Visible = false;

Chart1.Series.Add(series1);

ChartSeries trendLineSeries = new ChartSeries("Trend Line", ChartSeriesType.Line);
trendLineSeries.DefaultLabelValue = "#Y";
trendLineSeries.DataYColumn = "TrendLineScore";
trendLineSeries.Visible = true;
trendLineSeries.Appearance.LabelAppearance.Visible = false;

Chart1.Series.Add(trendLineSeries);

Chart1.DataSource = dsData.Tables[0];
Chart1.IntelligentLabelsEnabled = false;
Chart1.DataBind();

Is there any way to make it happen.

JAMIL

[Ves]

Hi Jamil,

I am afraid RadChart does not expose such functionality. It is possible to achieve it though -- the workaround is not that robust and flexible but still does the trick -- configure the PlotArea and the DataTable, so that the DataTable is positioned in a way that does not allow all of its content to be shown. The drawback is that you will have to fine-tune the PlotArea and the DataTable manually for the specific size of your chart. I have attached a small example, showing this for the default chart size.

Best regards,
Ves
the Telerik team