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Serries unwanted added mutiple times.

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Chart (Obsolete)
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Erik
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Erik asked on 28 Sep 2010, 06:18 AM
Hi everybody,

I'm playing around with RadChart and I want to make the chart dynamic.
I use the flowing code:
private static int[] huidigJaar = {135, 115, 79, 51, 5}; // ToDo: Values uit webService
private static int[] vorigeJaar = {110, 135, 47, 46, 15 }; // ToDo: Values uit webService
 
 
        protected override void OnLoad(EventArgs e)
        {
            if (!Page.IsPostBack)
            {
                InitRadChart();
                SetGraphValues();
            }
            RadChart1.Skin = "Pastel";
            base.OnLoad(e);
        }
 
        private void SetGraphValues() // Vullen van de Bars in de Grafiek
        {
            ChartSeries aantalSeries = RadChart1.GetSeries("Huidig Jaar");
            if (aantalSeries != null)
            {
                if (aantalSeries.Items.Count > 0)
                {
                    foreach (ChartSeriesItem seriesItem in aantalSeries.Items)
                    {
                        seriesItem.YValue = huidigJaar[seriesItem.Index];
                    }
                }
                else
                {
                    for (int i = 0; i < 5; i++)
                    {
                        aantalSeries.AddItem(huidigJaar[i]);
                    }
                }
            }
 
 
            ChartSeries aantalVorig = RadChart1.GetSeries("Vorig Jaar"); // Vorige Jaar
            if (aantalVorig != null)
            {
                if (aantalVorig.Items.Count > 0)
                {
                    foreach (ChartSeriesItem seriesItem in aantalVorig.Items)
                    {
                        seriesItem.YValue = vorigeJaar[seriesItem.Index];
                    }
                }
                else
                {
                    for (int i = 0; i < 5; i++)
                    {
                        aantalVorig.AddItem(vorigeJaar[i]);
                    }
                }
            }
        }
 
 
        private void InitRadChart() //Initalisatie van de Graph.. hier ook bepalen hoeveel bars.
        {
            // Titel van chart afhankelijk van wat we gaan tekenen.
            const string TITLETEXT = @"Aanvragen in {0} over de tijds periode {1}";
            RadChart1.ChartTitle.TextBlock.Text = string.Format(TITLETEXT,
                                             RadComboBox2.SelectedItem.Text,
                                             RadComboBox1.SelectedItem.Text);
                      
            RadChart1.PlotArea.XAxis.Appearance.TextAppearance.TextProperties.Font = new Font("Verdana", 10);
            RadChart1.PlotArea.XAxis.Appearance.TextAppearance.TextProperties.Color = Color.LightSlateGray;
 
            RadChart1.AutoLayout = true;
            RadChart1.PlotArea.XAxis.AutoScale = false;   // Moet op False anders wordt de label niet getoont.        
            RadChart1.PlotArea.XAxis.AddItem("Aangevraagd");
            RadChart1.PlotArea.XAxis.AddItem("Uitgebracht");
            RadChart1.PlotArea.XAxis.AddItem("Gepasseerd");
            RadChart1.PlotArea.XAxis.AddItem("Vervallen");
            RadChart1.PlotArea.XAxis.AddItem("Pijplijn");
            RadChart1.PlotArea.YAxis.VisibleValues = ChartAxisVisibleValues.Positive;
            RadChart1.Appearance.BarOverlapPercent = 40; // Huidige bar over de vorrige heen leggen           
             RadChart1.Series.Clear(); 
 
            //Bars voor het vorige jaar.. Wordt gevuld bij SetGraphValues
            ChartSeries aantallenVorrig = new ChartSeries("Vorig Jaar", ChartSeriesType.Bar);
            RadChart1.AddChartSeries(aantallenVorrig);
            aantallenVorrig.Appearance.ShowLabels = false;
 
            //Bars voor het huidige jaar.. Wordt gevuld bij SetGraphValues
            ChartSeries aantallenHuidig = new ChartSeries("Huidig Jaar", ChartSeriesType.Bar);
            RadChart1.AddChartSeries(aantallenHuidig);
            aantallenHuidig.Appearance.ShowLabels = true;
            aantallenHuidig.Appearance.TextAppearance.TextProperties.Color = Color.Black;
        }
 
        protected void RadComboBox_SelectedIndexChanged(object sender, RadComboBoxSelectedIndexChangedEventArgs e)
        {
            if ((RadComboBox1.SelectedItem != null) && (RadComboBox2.SelectedItem != null) )
            {
                InitRadChart();
                SetGraphValues();           
            }
        }
 

When I changed one of the RadCombo Boxes, the Title is updated perfectly but I get the,
extra serries in my chart.  
View screenshot.  

What is it, that I'm douing wrong ?




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Erik
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answered on 28 Sep 2010, 06:22 AM
After posting I found the answer really fast.
Sorry for the useless post..
I forgot to first clear the labels.. -> RadChart1.PlotArea.XAxis.Clear();
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Chart (Obsolete)
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