want to get values from 2 textboxes and insert to database using objectdatasource??

hi,
i have a textbox in a form that on button click triggers an insert statement using objectdatasource.
This works but I want to add a second textbox and also insert the value in that.
how do I set this up and call the objectdatasource to check both textboxes and if value insert to database          
aspx                  <asp:TextBox ID="SoundCloud" runat="server" Width="300px" Rows="4" TextMode="MultiLine"></asp:TextBox>                            
code behind
        if (SoundCloud.Tex ...