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RadChart Legend/ Marker Color

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Chart (Obsolete)
This is a migrated thread and some comments may be shown as answers.
Ashish
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Ashish asked on 08 Apr 2011, 08:25 AM
     Hello Please Help, i want to change colors of legend marker i mean the color of  rectangle, currently they are auto-generated.  
   Below is my code (6-series).

       rcScorecard.Series.Clear();
        rcScorecard.PlotArea.XAxis.Items.Clear();
        rcScorecard.PlotArea.YAxis.Items.Clear();

        rcScorecard.Skin = "Vista";
        rcScorecard.Series.Clear();
        rcScorecard.AutoLayout = true;

        rcScorecard.PlotArea.XAxis.AxisLabel.TextBlock.Appearance.TextProperties.Font = new System.Drawing.Font("Verdana", 12, System.Drawing.FontStyle.Bold);
        rcScorecard.PlotArea.YAxis.AxisLabel.TextBlock.Appearance.TextProperties.Font = new System.Drawing.Font("Verdana", 12, System.Drawing.FontStyle.Bold);

        //rcScorecard.PlotArea.YAxis.AutoScale = false;
        rcScorecard.PlotArea.YAxis.Step = 1;
        rcScorecard.PlotArea.YAxis.AxisLabel.TextBlock.Appearance.TextProperties.Font = new System.Drawing.Font("Verdana", 12, System.Drawing.FontStyle.Bold);
        rcScorecard.PlotArea.YAxis.AxisLabel.Visible = true;
        rcScorecard.PlotArea.YAxis.AxisLabel.TextBlock.Text = "Percentage (%)";

        rcScorecard.PlotArea.XAxis.AutoScale = false;
        rcScorecard.PlotArea.XAxis.AddItem(reportDate.AddMonths(-2).ToString("MMMM").Substring(0, 3) + reportDate.AddMonths(-2).Year.ToString());
        rcScorecard.PlotArea.XAxis.AddItem(reportDate.AddMonths(-1).ToString("MMMM").Substring(0, 3) + reportDate.AddMonths(-1).Year.ToString());
        rcScorecard.PlotArea.XAxis.AddItem(reportDate.ToString("MMMM").Substring(0, 3) + reportDate.Year.ToString());

        for (int count = 0; count < tblReport.Rows.Count; count++)
        {
            ChartSeries series = new ChartSeries();
            series.Name = tblReport.Rows[count][0].ToString();
            series.Type = ChartSeriesType.Line;
            rcScorecard.Series.Add(series);
            series.Items.Clear();
            for (int columnCount = 2; columnCount <= 4; columnCount++)
            {
                ChartSeriesItem item = new ChartSeriesItem();
                item.YValue = Convert.ToDouble(tblReport.Rows[count][columnCount]);
                series.Items.Add(item);
            }
        }

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Sia
Telerik team
answered on 13 Apr 2011, 04:24 PM
Hello Ashish,

You can change the legend markers' color on BeforeLayout:

rcScorecard.BeforeLayout += new EventHandler<EventArgs>(rcScorecard_BeforeLayout);
 
void rcScorecard_BeforeLayout(object sender, EventArgs e)
{
    List<Color> l = new List<Color>{Color.Red, Color.Blue, Color.Green, Color.Orange, Color.Olive, Color.Pink};
    int i = 0;
    foreach (var item in rcScorecard.Legend.Items)
    {
        item.Marker.Appearance.FillStyle.FillType = FillType.Solid;
        item.Marker.Appearance.FillStyle.MainColor = l[i];
        item.Marker.Appearance.Border.Color = Color.Transparent;
        i++;
    }
}

Greetings,
Sia
the Telerik team

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Ashish
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answered on 14 Apr 2011, 07:06 AM
Thank you very much Sia.
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Shaun
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answered on 30 Aug 2012, 07:22 PM
Sia,
 I'm trying to get the color of a series prior to rendering the page and use it in a data grid below the chart.  I've tried getting the color during series genration, pre render and pre render complete but the color is always 0,0,0,0 for all series.  I'm using the Office 2007 skin, so I'm assuming at this point the skin is providing the colors last second and there may not be a good way to get the colors of each series.  Below is my loop code to get my colors I've been trying.  Any thoughts?

foreach

 

 

(

ChartSeries s in RadChart1.Series)

{

 

 

//s.Appearance.LineSeriesAppearance.Color=CreateRandomColor();

 

 

Color seriesColor = s.Appearance.LineSeriesAppearance.Color;

updateLenderGridColorBySeries(s.Name, seriesColor);

}

0
Sia
Telerik team
answered on 04 Sep 2012, 02:02 PM
Hello Ashish,

Please try to get the colors on the BeforeLayout or PrePaint event as follows:

void RadChart1_BeforeLayout(object sender, EventArgs e)
{
     Color seriesColor = RadChart1.Series[0].Appearance.LineSeriesAppearance.Color;
}

Regards,
Sia
the Telerik team
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Tags
Chart (Obsolete)
Asked by
Ashish
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Answers by
Sia
Telerik team
Ashish
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Shaun
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