Error with Connection String Initialization

[epercipio]

I just purchased EasyQuery.Net webforms. I loaded the WebDemoAjazCS2010 sample project and made the following changes:

Default.aspx
Changed: <asp:AccessDataSource ID="ResultDS" runat="server"></asp:AccessDataSource>
To: <asp:SqlDataSource ID="ResultDS" runat="server"></asp:SqlDataSource>

Default.aspx.designer.cs
Changed: protected global::System.Web.UI.WebControls.AccessDataSource ResultDS;
To: protected global::System.Web.UI.WebControls.SqlDataSource ResultDS;

Default.aspx.cs
Changed all oledb references to sqlclient references and also changed the .xml file to a new one that references my database. Changed the SqlClient connection to point to my database.

When I build queries, it builds the SQL statements correctly, but when I try to display the query results, I get the following error message:

"Error in SQL statement: The ConnectionString property has not been initialized."

Please help!

[Admin]

You should set the ConnectionString property of ResultDS object before
execution of SQL statement.
For example, you can do it in Page_Load or right before calling ResultDS.Select

Something like:
ResultDS.ConnectionString = "Data Source=localhost;Initial
Catalog=nwind;Integrated Security=True;";