Pie Chart duplicated in table

[Forest]

Hello Telerik team,

I created a pie chart dynamically in the pie NeedDataSource function.

void chart1_NeedDataSource(object sender, EventArgs e)
{
    List<Product> products = new List<Product>();
    products.Add(new Product("Parka L", 120));
    products.Add(new Product("Parka M", 100));
    products.Add(new Product("Parka S", 132));

    Telerik.Reporting.Processing.Chart procChart = (Telerik.Reporting.Processing.Chart)sender;
    Telerik.Reporting.Chart defChart = (Telerik.Reporting.Chart)procChart.ItemDefinition;
    defChart.IntelligentLabelsEnabled = false;
    ChartSeries serie = new ChartSeries();
    serie.Type = ChartSeriesType.Pie;
    serie.Clear();
    serie.Appearance.LegendDisplayMode = Telerik.Reporting.Charting.ChartSeriesLegendDisplayMode.ItemLabels;
    foreach (Product lst in products)
    {
        ChartSeriesItem item = new ChartSeriesItem();
        item.YValue = (double)lst.QuantityInStock;
        item.Name = (string)lst.Name;
        item.Appearance.Exploded = true;
        item.Label.TextBlock.Text = (string)lst.Name + " - #%";
        serie.Items.Add(item);
    }
    defChart.Series.Add(serie);
}

Unfortunatly the chart is duplicated at each row as you can see with the attached file.
Have you got an idea please ?

Thanks

[Petio Petkov]

Hi Forest,

Changing the chart definition without removing the existing series is the cause for your troubles.

Here it is the modified code that should fix the problem:

private void chart1_NeedDataSource(object sender, EventArgs e)
      {
          List<Product> products = new List<Product>();
          Random rnd1 = new Random();
          products.Add(new Product("Parka L", 120));
          products.Add(new Product("Parka M", 100));
          products.Add(new Product("Parka S", 132));

          Telerik.Reporting.Processing.Chart procChart = (Telerik.Reporting.Processing.Chart)sender;
          Telerik.Reporting.Chart defChart = (Telerik.Reporting.Chart)procChart.ItemDefinition;
          defChart.IntelligentLabelsEnabled = false;

          ChartSeries serie = new ChartSeries();
          serie.Type = ChartSeriesType.Pie;
          serie.Clear();
          serie.Appearance.LegendDisplayMode = Telerik.Reporting.Charting.ChartSeriesLegendDisplayMode.ItemLabels;
          foreach (Product lst in products)
          {
              ChartSeriesItem item = new ChartSeriesItem();
              item.YValue = (double)lst.QuantityInStock;
              item.Name = (string)lst.Name;
              item.Appearance.Exploded = true;
              item.Label.TextBlock.Text = (string)lst.Name + " - #%";
              serie.Items.Add(item);
          }
          //Added by TELERIK
          defChart.Series.Clear();
          //END: Added by TELERIK
          defChart.Series.Add(serie);
      }

Greetings,
Petio Petkov
the Telerik team

[Forest]

Thanks a lot
It works !