AddRange of Chart in descending order

[Dhamodharan]

Hi,
      I am working in radchart control. i am using addrange property to add X axis item dynamically. I have a requirement to show values in reverse order.  I need an immediate solution.






Thanks

[Danail Vasilev]

Hi Dhamodharan,

You can use the code as follows:

ASPX:

<telerik:RadChart ID="RadChart1" runat="server" Height="400px" Width="600px" OnBeforeLayout="RadChart1_BeforeLayout">
    <Series>
        <telerik:ChartSeries Type="Point" Name="Series 1">
            <Items>
                <telerik:ChartSeriesItem YValue="30" XValue="15">
                </telerik:ChartSeriesItem>
                <telerik:ChartSeriesItem YValue="10" XValue="20">
                </telerik:ChartSeriesItem>
                <telerik:ChartSeriesItem YValue="20" XValue="25">
                </telerik:ChartSeriesItem>
            </Items>
        </telerik:ChartSeries>
    </Series>
</telerik:RadChart>

C#:

protected void Page_Load(object sender, EventArgs e)
{
    RadChart1.PlotArea.XAxis.AutoScale = false;
    RadChart1.PlotArea.XAxis.AddRange(10, 30, 5);
}
protected void RadChart1_BeforeLayout(object sender, EventArgs e)
{
    int numXAxisLabels = RadChart1.PlotArea.XAxis.Items.Count;
    var axisItems = new ChartAxisItem[numXAxisLabels];
    RadChart1.PlotArea.XAxis.Items.CopyTo(axisItems, 0);
    RadChart1.PlotArea.XAxis.Items.Clear();
    foreach (var item in axisItems.Reverse())
    {
        RadChart1.PlotArea.XAxis.Items.Add(item);
    }
}

Regards,
Danail Vasilev
Telerik