Have a look in your output window for binding exceptions. You can also turn on Common Language Runtime Exceptions (check Thrown to stop on all exceptions) Debug -> Exceptions (or Ctrl-D,E). That sometimes helps you with incorrect XAML.
One comment, I can't see how your object you are binding to is getting into your DataContext from your code example. Set a breakpoint somewhere and check your UserControl's datacontext has something in it to bind to. cheers, Stephen On Fri, Mar 4, 2011 at 1:57 PM, Peter Maddin <[email protected]>wrote: > Ok I am trying to use bindings for my listbox using an > ObservableCollection. > > However my listbox remains empty. > > > > My ObservableCollection is a very simple > > > > public class KeyDetailList : ObservableCollection<KeyDetail> > > { > > // Initial test data > > public KeyDetailList() > > { > > this.Add(new KeyDetail("XXXXXX", "YYYYYYYYYYYYYYYYYY", > "ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ")); > > this.Add(new KeyDetail("AAAAAA", "BBBBBBBBBBBBBBBBBB", > "CCCCCCCCCCCCCCCCCCCCCCCCCCC")); > > } > > } > > public class KeyDetail > > { > > public string ClientCode { get; set; } > > public string Generated { get; set; } > > public string ClientDescription { get; set; } > > public KeyDetail(string code, string generated, string > description) > > { > > this.ClientCode = code; > > this.Generated = generated; > > this.ClientDescription = description; > > } > > } > > > > In My XAML for my UserControl I give it a name of KeyFileControl > > > > . . . Detail omitted . . . > > mc:Ignorable="d" > > d:DesignHeight="617" d:DesignWidth="548" > > Loaded="UserControl_Loaded" > > *Name**="keyFileControl">* > > * * > > I have these resources > > > > <UserControl.Resources> > > <Style x:Key="KeyTextBlockStyle" TargetType="TextBlock"> > > <Setter Property="VerticalAlignment" Value="Center"/> > > <Setter Property="MinHeight" Value="25"/> > > <Setter Property="FontSize" Value="12.0"/> > > <Setter Property="FontWeight" Value="Bold"/> > > <Setter Property="Foreground" Value="WhiteSmoke" /> > > <Setter Property="TextAlignment" Value="Left"/> > > <Setter Property="Margin" Value="5,10,5,0" /> > > </Style> > > > > <DataTemplate x:Key="KeyListItemDetail"> > > <Grid> > > <Grid.RowDefinitions> > > <RowDefinition MinHeight="28" /> > > </Grid.RowDefinitions> > > <Grid.ColumnDefinitions> > > <ColumnDefinition Width="*" MinWidth="75" /> > > <ColumnDefinition Width="2*" MinWidth="120"/> > > <ColumnDefinition Width="3*" /> > > </Grid.ColumnDefinitions> > > <TextBlock Grid.Column="0" Style="{StaticResource > KeyTextBlockStyle}" Text="{Binding Path=ClientCode}" /> > > <TextBlock Grid.Column="1" Style="{StaticResource > KeyTextBlockStyle}" Text="{Binding Path=Generated}" /> > > <TextBlock Grid.Column="2" Style="{StaticResource > KeyTextBlockStyle}" Text="{Binding Path=ClientDescription}" /> > > </Grid> > > </DataTemplate> > > </UserControl.Resources> > > > > My ListBox is defined as > > > > <ListBox Margin="6" Name="listBoxKeys" Background="Transparent" > BorderThickness="0" > > Padding="10" ItemTemplate="{StaticResource > KeyListItemDetail}" ItemsSource="{Binding ElementName=KeyFileControl, > Path=KeyList}"> > > </ListBox> > > > > > > In my code behind I have this to generate some dummy test data. > > In debug the ObservableCollection is being instantiated and populated with > data. > > > > *My ListBox remains blank*. > > > > One can debug code. I am not sure if one can debug XAML as it runs. > > I must be doing something really dumb but am not sure what. > > > > I am using these UserControls from another window as such > > > > <StackPanel Grid.Row="1" Grid.Column="2" VerticalAlignment="Stretch"> > > <local:DownLoadUserControl x:Name="downLoadControl" > Visibility="Visible" Height="588" Width="446" /> > > <local:KeyFileUserControl x:Name="keyFileControl" > Visibility="Collapsed" Height="588" Width="446" /> > > </StackPanel> > > > > Would the use of x:Name conflict with the UserControl having a Name attribute. > > > > Can someone please put me out of my misery. > > > > Regards Peter. > > > > > > *From:* [email protected] [mailto:[email protected]] > *On Behalf Of *Peter Maddin > *Sent:* Thursday, 3 March 2011 4:28 PM > *To:* 'ozWPF' > *Subject:* RE: Adding ListBoxItems to a listbox programmatically > > > > Thanks again > > > > After doing it programmatically I might use your solution with a collection > that is bindable and put my template back in. > > i.e. http://msdn.microsoft.com/en-us/library/ms748365.aspx. > > Its a lot easier to work with a collection than work with UI elements. > > > > Suppose I should have done it that way in the first place but I like to > know how things work under the hood, so to speak. > > > > WPF is much better than WinForms but the learning curve is much steeper. > > I have been able to accomplish things with WPF that I could dream about > with WinForms. > > Still have a lot to learn. > > > > Regards Peter. > > > > > > _______________________________________________ > ozwpf mailing list > [email protected] > http://prdlxvm0001.codify.net/mailman/listinfo/ozwpf > >
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