Question

The following code gives me the error (cannot add type Object to Stackpanel).

How can I say .ToString() in XAML?

<Window.Resources>     <Style TargetType='{x:Type ListBoxItem}'>         <Setter Property='Content'>             <Setter.Value>                 <StackPanel Orientation='Horizontal'>                     <TextBlock Text='{Binding Path=FirstName}'/>                 </StackPanel>             </Setter.Value>         </Setter>     </Style> </Window.Resources> <Grid>     <ListBox x:Name='theCustomers'/> </Grid> 

binding in code-behind with ADO.NET Entity Framework:

MainEntities db = new MainEntities(); var customers = from c in db.CustomersSet                 select c; theCustomers.ItemsSource = customers; 

Answer 1

You need to set the property ContentTemplate, not Content.

Try:

<Setter Property='ContentTemplate' >    <Setter.Value>       <DataTemplate>          <StackPanel Orientation='Horizontal'>            <TextBlock Text='{Binding Path=FirstName}'/>            <TextBlock Text=' '/>            <TextBlock Text='{Binding Path=LastName}'/>          </StackPanel>       </DataTemplate>    </Setter.Value> </Setter> 

See this article