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();
}
}
}