I don't know if this has been fixed in the 340 version.
Try this window.The window appears black on the bottom and on the right because the bordres are hidden I think.
Try this window.
<ribbon:RibbonWindow x:Class="Sample.Application.SizeToContentBug" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:ribbon="http://schemas.actiprosoftware.com/winfx/xaml/ribbon" Title="SizeToContent bug" SizeToContent="WidthAndHeight" > <Button>A simple button</Button> </ribbon:RibbonWindow>
namespace Sample.Application { /// <summary> /// Interaction logic for SizeToContentBug.xaml /// </summary> public partial class SizeToContentBug : RibbonWindow { public SizeToContentBug() { InitializeComponent(); } } }
