Problems with a longlistselector in xaml windows phone - xaml

Question

I am having problems with a longlist selector. Visual Studio said that the xaml is not valid but it compiles and works fine. The problem is that I need in the codebehind the text of the object "txtProjectName" and look like this object is not created.
this is the code:
<phone:PanoramaItem Header="{Binding Source={StaticResource LocalizedStrings}, Path=LocalizedResources.MainPagePanoramaItemGalleryTitle}">
<!--Lista de líneas dobles con marcador de posición de imagen y ajuste de texto que usa un encabezado flotante que se desplaza con el contenido-->
<phone:LongListSelector x:Name="GaleryLongListSelector" Margin="10" }">
<phone:LongListSelector.ItemTemplate>
<DataTemplate>
<Grid Margin="10">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<StackPanel Orientation="Horizontal" Margin="12,2,0,4" Height="100" Tap="StackPanel_Tap" toolkit:TiltEffect.IsTiltEnabled="True" Grid.Column="0">
<!--Reemplazar el rectángulo por la imagen-->
<Border BorderThickness="1" Width="79" Height="79" BorderBrush="Red" Background="#FFFFC700"/>
<TextBlock x:Name="txtProjectName" Text="{Binding Name}" TextWrapping="Wrap" Margin="10,0" Style="{StaticResource PhoneTextExtraLargeStyle}" FontSize="{StaticResource PhoneFontSizeLarge}" />
</StackPanel>
<Image Source="/Images/share.png" Width="80" Tap="Image_Tap" Grid.Column="1" HorizontalAlignment="Right"/>
</Grid>
</DataTemplate>
</phone:LongListSelector.ItemTemplate>
</phone:LongListSelector>
</phone:PanoramaItem>
The datacontext is defined in the code behind because it is a database.
Thanks

Answer 1

First - I'm not sure if this is a copy-pate mistake or you also have this in your code: <phone:LongListSelector x:Name="GaleryLongListSelector" Margin="10" }"> - remove }".
Your code should work, few remarks:
your LLS should be filled with items which class should have a public property with suitable getter:
public class Item
{
public string Name { get; set; }
}
you should have a List or better ObservableCollection of your items:
ObservableCollection<Item> items = new ObservableCollection<Item>();
you should set this collection as ItemsSource:
GaleryLongListSelector.ItemsSource = items;
then you can add items and if its ObservableCollection then you will see your items automatically:
items.Add(new Item { Name = "First" });
Hope this helps a little.