Use Two SQL Statements In One SqlDataSource ?

Hello,

I have SqlDataSource to retrieve a data into DetailsView, or GridView, whatever.

I want to use two Select command like this:

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="Data Source=AHMED-4714D04B3;Initial Catalog=mp;Integrated Security=True"

<%

if (( parID == 3) || (ParID ==4)

{

SelectCommand="SELECT [PID], [PageID], [PageContent], [ParID], [ChiID] FROM [mp_page] WHERE ([ParID] = @ParID)">

<SelectParameters>

<asp:ControlParameter ControlID="DropDownList1" Name="ParID" PropertyName="SelectedValue" />

</SelectParameters>

}

else

{

 

SelectCommand="SELECT [PID], [PageID], [PageContent], [ParID], [ChiID] FROM [mp_page] WHERE ([ChiID] = @ChiID)">

<SelectParameters>

<asp:ControlParameter ControlID="DropDownList1" Name="ChiID" PropertyName="SelectedValue" />

</SelectParameters>

}

</asp:SqlDataSource>

Is it possible to do something like that ?