Hi Eric,

Sorry for my lack. I'm not really understood about the scenario that you mention above. However, you can add WebGrid programmatically to you WebTabby using this code:

protected void Page_Load(object sender, EventArgs
{
    WebGrid WebGrid1 = new WebGrid();
    WebGrid1.UseDefaultStyle = true;
    WebGrid1.Width = Unit.Pixel(400);
    WebGrid1.Height = Unit.Pixel(200);
    WebGrid1.InitializeDataSource += new DataSourceEventHandler(WebGrid1_InitializeDataSource);
    WebGrid1.PrepareDataBinding += new DataSourceEventHandler(WebGrid1_PrepareDataBinding);
    WebTab tab1 = new WebTab();
    WebTabItem theTab = new WebTabItem();
    theTab.Text = "Tab1";
    theTab.PageTemplate = new MyClass(WebGrid1);
    tab1.TabPages.Add(theTab);
    form1.Controls.Add(tab1);
}
public class MyClass : ITemplate
{
    WebGrid grid1 = null;
    public MyClass(WebGrid grid1)
    {
        this.grid1 = grid1;
    }
    public void InstantiateIn(System.Web.UI.Control container)
    {
        container.Controls.Add(grid1);
    }
}

You override ITemplate class in MyClass class then you add the method to add the WebGrid there. Could you explain more details about the requirement or scenario that you want to achieve above? Look forward to hear any feedback from you so I can help you further.

Regards,

Bernard