>Viv
>
>Updated image. I aligned everything and drew some lines.
>
>http://www.foxite.com/uploads/5d91d1cf-e67c-4a24-892d-dd64e77c8c27.jpg
>
>The lines show how the grid has moved and is now positioned in the form and there is nothing consistent I see in the movement. The combo has not shrunk, as Bonnie pointed out, but the textbox has grown as has the button, because the width was not explicitly set.
>
>Well I did not set the width property for any of the controls. That was VS doing it on its own - doing it for some and not for others.

As per my other reply: the runtime Grid is shown slightly wider than at design time; the textbox has stretched because it has no explicit width. The alignment and Margin attributes of both buttons mean that they are (effectively) docked to the right of the Grid.