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RangeArea Chart

C# Example Code 

{                
    System.Random r= new System.Random();
    chart.Theme = Theme.Blues;
    chart.Series[0].Type = ChartType.SmoothRangeArea;
    chart.Series[1].Type = ChartType.SmoothLine;
    
    double val = 5.0;
    double spread = 1;
    for (int i=0; i<=5; i++)
    {
        val += r.NextDouble() + 1.0;
        spread += r.NextDouble() * 5;

        chart.Series[0].Data.Add(new DataPoint(val-spread, val+spread, i.ToString()));
        chart.Series[1].Data.Add(new DataPoint(val, i.ToString()));
    }                    
}

ASP.Net C# Example 

<%@ Register tagPrefix="SasqChart" Namespace="SasqChart" Assembly="SasqChart" %>
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Drawing2D" %>
<%@ Import Namespace="System.Drawing.Imaging" %>
<HTML>
    <HEAD>
        <title>Simple C# SasqChart Example</title>
        <script runat="server">
            private void Page_Load(object sender, System.EventArgs e)		
            {                
                System.Random r= new System.Random();
                chart.Theme = Theme.Blues;
                chart.Series[0].Type = ChartType.SmoothRangeArea;
                chart.Series[1].Type = ChartType.SmoothLine;
                
                double val = 5.0;
                double spread = 1;
                for (int i=0; i<=5; i++)
                {
                    val += r.NextDouble() + 1.0;
                    spread += r.NextDouble() * 5;
            
                    chart.Series[0].Data.Add(new DataPoint(val-spread, val+spread, i.ToString()));
                    chart.Series[1].Data.Add(new DataPoint(val, i.ToString()));
                }                    
            }

        </script>
    </HEAD>
    <body>
        <SasqChart:WebChartControl id="chart" runat="server" width="600" height="400" />
    </body>
</HTML>