RaiseBubbleEvent(Me, args)

Protected Overrides Function OnBubbleEvent(ByVal source As Object, ByVal args As System.EventArgs) As Boolean

MyControlThatNeedsUpdated grid = (MyControlThatNeedsUpdated)FindControlRecursive(Page, "MyControlThatNeedsUpdated");
grid.updateList();


private Control FindControlRecursive(Control root, string ControlType)
{
    if (root.GetType().Name == ControlType)
    {
        return root;
    }

    foreach (Control c in root.Controls)
    {
        Control t = FindControlRecursive(c, ControlType);
        if (t != null)
        {
            return t;
        }
    }

    return null;
}