List Box Question

Hi,
I use this code to add items to a list box:

       ListBoxMarkup.AddItem "<Border BorderThickness='2' BorderBrush='DodgerBlue' Margin='0, 2, 0, 2' Padding='3'><StackPanel Orientation='Horizontal'>" & _
       "<Image Source='100'/>" & _
       "<Grid><Grid.ColumnDefinitions><ColumnDefinition Width='Auto'/><ColumnDefinition Width='*'/></Grid.ColumnDefinitions>" & _
       "<Grid.RowDefinitions><RowDefinition/><RowDefinition/></Grid.RowDefinitions>" & _
       "<TextBlock TextAlignment='Right' FontWeight='Bold' Foreground='Navy' Text='IP:'/>" & _
       "<TextBlock TextAlignment='Right' Grid.Row='1' FontWeight='Bold' Foreground='Navy' Text='Country:'/>" & _
       "<TextBlock Margin='6, 0, 0, 0' Grid.Column='1' Text='" & MyResult(0) & "'/>" & _
       "<TextBlock Margin='6, 0, 0, 0'  Grid.Column='1' Grid.Row='1'  Text='" & "Loopback" & "'/>" & _
       "</Grid></StackPanel></Border>"

And result is like this:



There are 4 items added to the list box, I just want the 2 inner items with flags to be changed : I want flags in the right .
Is that possible to only move icons/flags to the right?
Thank you for your help :)

Hello and thank you very much for your tip
That works but still items are sticky and not having a good view!
So can I send icons to the right corner?
Where marked in this picture?
Thank you a lot