CODEWITHSUNDEEP
silverlightwindows-phone-7datatemplate
enkara
enkara

Reputation: 6349

Windows Phone 7 Silverlight DataTemplate HyperlinkButton content

I'm trying to make a list that is populated by external data and I have a datatemplate for it.
Each element of the list is composed of an image and two textblocks, and is linked to a specific page.

I'm trying to do this but when I wrap the structure with an HyperlinkButton, I just get a blank page.

I don't know if I'm doing something stupid wrong or it's not possible to have so many items in an HyperlinkButton. If it's not possible to do it this way, can someone guide me to the best solution to do this? Here's the code:

<Grid x:Name="ContentPanel" Margin="0,140,0,0" Background="White">
    <ListBox HorizontalAlignment="Stretch" Name="itemList" VerticalContentAlignment="Stretch">
        <ListBox.ItemTemplate>
            <DataTemplate>
                <HyperlinkButton>
                    <Grid HorizontalAlignment="Stretch" VerticalAlignment="Stretch" MinWidth="480">
                        <Grid.Background>
                            <ImageBrush ImageSource="/app;component/Images/degradat_cela.png" Stretch="UniformToFill" AlignmentY="Top" AlignmentX="Left" />
                        </Grid.Background>
                        <Grid.RowDefinitions>
                            <RowDefinition Height="35" />
                            <RowDefinition Height="35" />
                        </Grid.RowDefinitions>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="50" />
                            <ColumnDefinition Width="430*" />
                        </Grid.ColumnDefinitions>

                        <Border HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Height="38" Width="38" Grid.RowSpan="2" Grid.Column="0" Grid.Row="0" BorderThickness="1" BorderBrush="#FFFF003F" Padding="1">
                            <Image HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Name="listImage" Width="36" Height="36" Source="{Binding image}" />
                        </Border>
                        <TextBlock Margin="5 12 0 0" Grid.Column="1" Grid.Row="0" Name="title" Foreground="Black" Text="{Binding title}" FontWeight="Bold" FontSize="18" />
                        <TextBlock Margin="5 0 0 8" Grid.Column="1" Grid.Row="1" Name="description" Foreground="Black" Text="{Binding subtitle}" FontSize="14" />
                    </Grid>
                </HyperlinkButton>
            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>
</Grid>

I will also accept any suggestions to make my code better, as I'm new to .NET and I probably don't do things the best way!

Upvotes: 1

Views: 1326

Answers (1)

theChrisKent
theChrisKent

Reputation: 15099

Remove the HyperlinkButton and instead use the SelectionChanged event of the ListBox. So add this property to your ListBox:

SelectionChanged="myListBox_SelectionChanged"

Then in your code behind do this:

private void myListBox_SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e)
{
    if ((sender as ListBox).SelectedIndex == -1)
        return;

    NavigationService.Navigate(new System.Uri(string.Format("/Drilldown.xaml?Index={0}",(sender as ListBox).SelectedIndex),System.UriKind.Relative));
}

This code assumes a drilldown page that uses a query string to change it's layout. This is just for example. If instead of index you wanted to reference some property of the bound item you could instead do something like this (assuming an ID property):

int itemID = ((sender as ListBox).SelectedItem as MyApp.Model.myItem).ID;
NavigationService.Navigate(new System.Uri(string.Format("/Drilldown.xaml?ID={0}",itemID),System.UriKind.Relative));

Upvotes: 3

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