Array
This help article describes which properties to use to bind a RadHtmlChart to an Array and presents a code example. To bind a RadHtmlChart to an Array object, you assign the RadHtmlChart DataSource property to the array and then call the RadHtmlChart DataBind() method. The y-axis automatically adjusts to accommodate the values and its appearance can be controlled more precisely via its properties. Example 1 demonstrates data binding to an array of doubles.
Example 1: The RadHtmlChart markup that is bound to an array of doubles in Example 2.
<telerik:RadHtmlChart runat="server" ID="RadHtmlChart1">
<PlotArea>
<Series>
<telerik:LineSeries Name="2011">
<TooltipsAppearance DataFormatString="{0}%" />
<LabelsAppearance Visible="false" />
</telerik:LineSeries>
</Series>
<XAxis>
<Items>
<telerik:AxisItem LabelText="January" />
<telerik:AxisItem LabelText="Februrary" />
<telerik:AxisItem LabelText="March" />
<telerik:AxisItem LabelText="April" />
<telerik:AxisItem LabelText="May" />
<telerik:AxisItem LabelText="June" />
<telerik:AxisItem LabelText="July" />
<telerik:AxisItem LabelText="August" />
<telerik:AxisItem LabelText="September" />
<telerik:AxisItem LabelText="October" />
<telerik:AxisItem LabelText="November" />
<telerik:AxisItem LabelText="December" />
</Items>
</XAxis>
<YAxis>
<LabelsAppearance DataFormatString="{0}%" />
</YAxis>
</PlotArea>
<Legend>
<Appearance Visible="false" />
</Legend>
<ChartTitle Text="IE market share in 2011">
</ChartTitle>
</telerik:RadHtmlChart>
Example 2: Binding the chart from Example 1 to an array of doubles.
protected void Page_Load(object sender, System.EventArgs e)
{
double[] ValuesArray = { 26.6, 26.5, 25.8, 24.3, 24.9, 23.2, 22.0, 22.4, 22.9, 21.7, 21.2, 20.2 };
RadHtmlChart1.DataSource = ValuesArray;
RadHtmlChart1.DataBind();
}
Protected Sub Page_Load(sender As Object, e As System.EventArgs)
Dim ValuesArray As Double() = {26.6, 26.5, 25.8, 24.3, 24.9, 23.2, _
22.0, 22.4, 22.9, 21.7, 21.2, 20.2}
RadHtmlChart1.DataSource = ValuesArray
RadHtmlChart1.DataBind()
End Sub