ContentPresenter inside a ListBoxItem is preventing HorizontalAlignment to stretch

05-14-2009 4:13 PM |

I used Silverlight Spy to track down my issue to what I am pretty certain is the problem. I have a custom UserControl (OpportunitySummary in image below) as the DataTemplate of an ItemTemplate for a ListBox. The custom UserControl should stretch/grow to fit what parent it is placed in. However it is not in this case. When I use Silverlight Spy to increase the width of the ContentPresenter (note that he content presenter is added by the ListBoxItem, to hold my custom control), the custom usercontrol 'stretches' as I want it to.

So, the question: How can I prevent the ContentPresenter inside the ListBoxItem from from inhibiting the size of my usercontrol?

Thanks,

Roger

Re: ContentPresenter inside a ListBoxItem is preventing HorizontalAlignment to stretch

05-14-2009 6:20 PM |

Yes, that was it, even though HorizontalContentAlignment was ignored on the ListBox tag. Thanks!  For anyone else, here is how that looks:

	<Style x:Key="ListBoxItemStyle" TargetType="ListBoxItem">
		<Setter Property="HorizontalContentAlignment" Value="Stretch" />
	</Style>

	<ListBox ItemContainerStyle="{StaticResource ListBoxItemStyle}" HorizontalContentAlignment="Stretch" Grid.Row="1" ItemsSource="{Binding Mode=OneWay, Path=TestAccounts, Source={StaticResource TestDataDS}}">
                    <ListBox.ItemTemplate>
                        <DataTemplate>
                            <controls:OpportunitySummary />
                        </DataTemplate>
                    </ListBox.ItemTemplate>
                </ListBox>

Re: ContentPresenter inside a ListBoxItem is preventing HorizontalAlignment to stretch

07-02-2009 3:57 AM |

Pfew, thanks!! Workaround is perfect!