Show cue banner for wpf ComboBox with grouping
- by Adam Duston
I have a ComboBox in my WPF form:
<ComboBox Margin="75,0,15,102" Name="videoFormatCombo"
Height="23" VerticalAlignment="Bottom"
DataContext="{StaticResource GroupedVideoFormats}"
ItemsSource="{Binding}"
ItemTemplate="{StaticResource VideoFormatTemplate}">
<ComboBox.GroupStyle>
<GroupStyle HeaderTemplate="{StaticResource GroupHeader}"/>
</ComboBox.GroupStyle>
</ComboBox>
As you might be able to guess, GroupedVideoFormats is a CollectionViewSource with grouping.
I need to get a cue banner to display for this ComboBox. I've attempted the solution that is (very verbosely) outlined in this blog post, but it will not work for a ComboBox with grouped data. The two solutions outlined in superfluousprefixhttp://stackoverflow.com/questions/2548757/how-can-the-blank-space-in-a-c-combobox-be-filled-as-a-hint-for-the-user are for Windows Forms ComboBoxes only, and won't work with WPF.
If it would help to see all the original source, this particular form is on github: superfluousprefixhttp://github.com/8planes/mirovideoconverter/blob/master/MSWindows/Windows/FileSelect.xaml . It's an open-source project, so the entire project is on github: superfluousprefixhttp://github.com/8planes/mirovideoconverter/tree/master/MSWindows .
Thank you for any advice!
Adam
P.S. stackoverflow wouldn't let me make more than one anchor tag in my post, hence the long urls with the superfluous prefix. Sorry!
