SqlDataSource

This help article describes which properties to use to bind the ASP.NET AJAX Chart 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.NET

<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