Vista - Popup question

For the following XAML, Once I bring up the popup,
I can't dismiss it by clicking somewhere outside, I have StaysOpen="false"

<Button HorizontalAlignment="Left" x:Name="btn" Click="DisplayPopup">
<StackPanel>
<TextBlock>Click</TextBlock>
<Popup StaysOpen="false" x:Name="ButtonPopup">
<StackPanel>
<MenuItem Name="PopupText" Background="Blue" Header="Blue"
Click="OnBlue">
</MenuItem>
<MenuItem Background="Red" Header="Red"
Click="OnRed"></MenuItem>
</StackPanel>
</Popup>
</StackPanel>
</Button>

// Sample event handler:
private void DisplayPopup(object sender, RoutedEventArgs e)
{
ButtonPopup.IsOpen = true;
}
private void OnRed(object sender, RoutedEventArgs e)
{
MessageBox.Show("Chose Red");
}
private void OnBlue(object sender, RoutedEventArgs e)
{
MessageBox.Show("Chose Blue");
}

--
Vipin Aravind
http://www.explorewindows.com

Yes, I have the same problem in my DropDownButton I use in my ColorPicker.
Popup closes only after you have focused some control on it.

And one more thing:
When I use for example Border with no Background set in Popup, it has black
color (or transparent when I allow transparency in Popup) but the Border in
normal Window or Page has white color (or the color of window as defined in
Windows OS).

Exactly,that is a bug. I see that problem too,to overcome I am explicitly
setting the
Background property on the menuitem.

--
Vipin Aravind
http://www.explorewindows.com


"Marek" <Marek@discussions.microsoft.com> wrote in message
news:60E61299-F8EA-4899-9F6A-0EAD6534A229@microsoft.com...
> And one more thing:
> When I use for example Border with no Background set in Popup, it has
> black
> color (or transparent when I allow transparency in Popup) but the Border
> in
> normal Window or Page has white color (or the color of window as defined
> in
> Windows OS).