SqlDataSource

This help article describes which properties to use to bind a RadHtmlChart to a SqlDataSource and presents a code example. You can bind a RadHtmlChart to a SqlDataSource using the following properties:

• DataSourceID in the main tag sets the declarative data source for the entire chart. You can use the DataSource property for a programmatic data source if you create the connection in the code-behind.

• DataFieldY property (and ColorField, ExplodeField, NameField for Pie; DataFieldX for Bubble, Scatter and ScatterLine; etc.)for the series to point it to the desired data source field.

• DataLabelsField for the x-axis labels to populate the items for the axis.

The data, used in the following example, is pulled from the database Telerik, which can be found in the App_Data folder in the main demos directory (you can download the installation for the Demos App from here).

Example 1: Bind a SqlDataSource to a RadHtmlChart.

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:TelerikConnectionString %>"
    SelectCommand="SELECT [Year], [Value] FROM [Data] WHERE ([Subcategory_Id] = 1)">
</asp:SqlDataSource>
<telerik:RadHtmlChart runat="server" ID="RadHtmlChart1" DataSourceID="SqlDataSource1">
    <PlotArea>
        <Series>
            <telerik:ColumnSeries DataFieldY="Value" Name="Electricity Consumption">
            </telerik:ColumnSeries>
        </Series>
        <XAxis DataLabelsField="Year">
            <LabelsAppearance RotationAngle="75" />
            <TitleAppearance Text="Year" />
        </XAxis>
        <YAxis>
            <TitleAppearance Text="MWh" />
        </YAxis>
    </PlotArea>
    <Legend>
        <Appearance Visible="false" />
    </Legend>
    <ChartTitle Text="Electricity Consumption">
    </ChartTitle>
</telerik:RadHtmlChart>

See Also

• RadHtmlChart Column Series

• RadHtmlChart Database Demo