ProviderName="System.Data.SqlClient"
ConnectionString="<%$ ConnectionStrings:AdventureWorks %>"
SelectCommand="GetProductSubCategories" SelectCommandType="StoredProcedure">
Categories:
DataValueField="ProductSubcategoryID" DataTextField="Name" AutoPostBack="true"
ID="lstCategories" />
ProviderName="System.Data.SqlClient"
ConnectionString="<%$ ConnectionStrings:AdventureWorks %>"
SelectCommand="GetProductsByCategoryID" SelectCommandType="StoredProcedure">
PropertyName="SelectedValue" />
HeaderStyle-HorizontalAlign="Center" HeaderStyle-Font-Bold="True"
HeaderStyle-BackColor="blue" HeaderStyle-ForeColor="White" />