Windows Phone 7 dev: How highlight selection of ListBox - windows-phone-7

I have this code in my .xaml file
<ListBox Name="Tracks" Margin="0,0,-12,0" ItemsSource="{Binding AllTracks}">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Margin="0,0,0,17" Width="432" Height="150">
<TextBlock Text="{Binding Name}" TextWrapping="NoWrap" Style="{StaticResource PhoneTextExtraLargeStyle}"/>
<TextBlock Text="{Binding Artist}" TextWrapping="NoWrap" Margin="12,-3,12,0" Style="{StaticResource PhoneTextSubtleStyle}"/>
<TextBlock Text="{Binding Album}" TextWrapping="NoWrap" Margin="12,3,12,0" Style="{StaticResource PhoneTextSubtleStyle}"/>
<TextBlock Text="{Binding Duration}" TextWrapping="NoWrap" Margin="12,6,12,0" Style="{StaticResource PhoneTextSubtleStyle}"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
I put data in my list like that(MediaLibrary library = new MediaLibrary();
Tracks.ItemsSource = library.Songs;).
I can see data on my list but when i select something, the selection doesn't highlighted,
how i can fix it? Thanks...

The phone applies the Accent colour as Foreground to the selected element's VisualTree. But since you're overriding the style for all the elements, it's likely that the colour won't be applied.
Try with a regular TextBlock without any Style, and you'll see.

Here: Windows Phone 7 - Setting style for specific control within selected ListBoxItem I've written a bit in response to a similar problem. Please read at least the original post/problem and my answer to it. It may look overwhelming at first as there's not a small amount of extra XAML, but in fact it is quite easy to follow and once you look at it as a several different aspects (template, styles, visualstates) - it turns out to be .. quite short, paradoxically. Once you read through it, you will probably notice that your problem is almost exactly the same, with the minor difference that the 'animated' property/target from foreground of textbox to a background of the panel..

Related

How to Superscript some Text in a TextBox/TextBlock Control in windows phone 8?

I'm working on windows phone 8 app, and m stuck here, guys i want to show some text as a superscript either in TextBox or in TextBlock where-ever possible. suggest me how can i obtained it. Thanks
Why don't you use a stackpanel wrapping a couple of textblocks instead? Then adjust the margines on the stuff you want super and subscripted.
<StackPanel Orientation="Vertical">
<TextBlock Text="H2O3" FontSize="40" Margin="0,10"/>
<StackPanel Orientation="Horizontal">
<TextBlock Text="H" FontSize="40" />
<TextBlock Text="2" FontSize="40" Margin="0,-20,0,0"/>
<TextBlock Text="O" FontSize="40"/>
<TextBlock Text="3" FontSize="40" Margin="0,10,0,-10"/>
</StackPanel>
</StackPanel>
There's an alternative but it's only available in WP8: Typography.Variants.
I personally prefer this approach as it aligns more with WPF but there are cases where you have to do baseline manipulation or in this instance, margin wrangling. If WPF is any indication, it also requires a font that supports variants which are generally open type/true type only. See Superscript / subscript in hyperlink in WPF for a better explanation.

Change listbox selected item foreground in windows phone 7

I have the following listbox:
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal" Margin="0,10,0,10">
<TextBlock
Foreground="Black"
Text="{Binding name}"/>
<TextBlock
Foreground="Black"
Text=": "
Visibility="{Binding
Path=name,
Converter={StaticResource ServiceOtherConverter}}"/>
<TextBlock
Foreground="Black"
Text="{Binding amount}"
Visibility="{Binding
Path=name,
Converter={StaticResource ServiceOtherConverter}}"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
And my app has a white background, so I'd like to set the list items foreground to black. But when I select an item, its foreground doesn't change, as it does whith the default foreground.
How can I change the list items foreground to black but still have the selected foreground different?
You just need to change the Foreground in the Selected VisualState at the style template level for the ListBox Item. For reference you might peek at the msdn doc for ListBox Styles and Templates. Expression Blend makes it pretty painless. Just right-click your item and choose "Edit Additional Templates" and choose the Item template. Then from the States tab, choose the Selected State and change the foreground color. Or you could just do it directly in the template code. Hope this helps.

WP7 - Drag & Drop with nested layouts

I've got a page design as follows:
The layout is as follows:
<ScrollViewer Margin="0" HorizontalAlignment="Left" Height="360" VerticalAlignment="Bottom">
<StackPanel x:Name="spQueuedWeapons" HorizontalAlignment="Left" VerticalAlignment="Bottom">
<ItemsControl ItemsSource="{Binding QueuedCombinations}" HorizontalAlignment="Left">
<ItemsControl.ItemTemplate>
<DataTemplate>
<Image Source="{Binding ImageName}">
<i:Interaction.Behaviors>
<ex:MouseDragElementBehavior ConstrainToParentBounds="False" />
</i:Interaction.Behaviors>
</Image>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</StackPanel>
</ScrollViewer>
The problem I'm seeing is that the MouseDragElementBehavior seems to be visually constrained to the bounds of the ScrollViewer.
I want to be able to drag the green boxes to the blue drop target.
The only options I've thought of so far have been to remove the containing ScrollViewer or to simulate the StackPanel layout programmatically.
I'd rather not add manual button based scrolling or programmatic layout if possible.
Does anyone have any ideas?

Why is my ItemsControl truncated when its inside an ExpandView

I have a WP7 project that has been giving me the runaround for too many days now. Any help in sorting this out would be hugely appreciated.
Basically, I have a ScrollViewer. Inside I have an ItemsControl. The ItemTemplate for the ItemsControl contains an Expander (adapted from the Silverlight 3 Toolkit). The Expander ContentTemplate has an ItemsControl.
Basically, what is happening is that when I expand one of the Expander items and that ItemsControl contains a larger amount of items (> 25), the "rendering" of the list appears to be truncated. There is a large empty space where the items should go, so there appears to be space reserved for them, but try as I might, they simply get truncated.
I've tried with three different types of Expander controls including the ExpanderView. Same results no matter what I try.
Here is a screenshot: http://www.IntuitiveWebDesigns.com/Photos/truncation.png
Here is a snippet from the XAML I am using.
<ScrollViewer Grid.Row="1">
<ItemsControl ItemsSource="{Binding Publishers}" Margin="0,10,0,0" Height="Auto">
<ItemsControl.ItemTemplate>
<DataTemplate>
<Border Background="Black" Opacity="60" OpacityMask="#8A000000" CornerRadius="10">
<controlToolkit:Expander ExpandDirection="Down" Header="{Binding}" Content="{Binding}" Height="Auto">
<controlToolkit:Expander.HeaderTemplate>
<DataTemplate>
<TextBlock Text="{Binding PublisherName}"
Foreground="{StaticResource PhoneAccentBrush}"
FontSize="{StaticResource PhoneFontSizeExtraLarge}"
FontFamily="{StaticResource PhoneFontFamilySemiLight}"/>
</DataTemplate>
</controlToolkit:Expander.HeaderTemplate>
<controlToolkit:Expander.ContentTemplate>
<DataTemplate>
<ItemsControl ItemsSource="{Binding Issues}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<StackPanel>
<TextBlock Text="{Binding TitleAndIssue}"
Foreground="{StaticResource PhoneForegroundBrush}"
FontSize="{StaticResource PhoneFontSizeNormal}"
FontFamily="{StaticResource PhoneFontFamilySemiLight}"/>
<TextBlock Text="{Binding StrAmount}"
TextWrapping="Wrap"
Margin="0,0,0,0"
Foreground="{StaticResource PhoneAccentBrush}"
FontSize="{StaticResource PhoneFontSizeNormal}"
FontFamily="{StaticResource PhoneFontFamilyNormal}"/>
</StackPanel>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</DataTemplate>
</controlToolkit:Expander.ContentTemplate>
</controlToolkit:Expander>
</Border>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</ScrollViewer>
You're hitting a limitation of the platform. Specifically that a UIElement can't be larger than 2048px in either dimension. This limitation exists for memory and performance reasons.
Rather than building your own control, try using one of the standard ones, or one from the phone version of the toolkit.
If you really want to use an expander style control, then reserve a smaller fixed size for the scrollable area and virtualize the list that is displayed.

Windows phone 7 keyboard size

I want to resize the page when the keyboard appears on the screen.
I was looking for any clue all day but I can't find anything.
In my case. I want to have full page TextBox and some buttons under it.
<Grid x:Name="RootLayout" >
<Grid >
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="70"/>
</Grid.RowDefinitions>
<ScrollViewer Margin="0" >
<TextBox TextWrapping="Wrap" Text="TextBox" AcceptsReturn="True" VerticalScrollBarVisibility="Auto" Height="698" Width="480"/>
</ScrollViewer>
<Canvas x:Name="RootMenu" Margin="0,1,0,0" Grid.Row="1" />
</Grid>
</Grid>
I use to thing that the first row will change its size automatically, but it doesn't happening.
Please help me.
///// -----------------------------------------------------------------------------
I'm going to dislike this OS! Proposed solution is not good at all. When the keyboard is visible then I can not scroll it down.
Lets say I want just simple TextBox to let users write something. But it is impossible !!
<phone:PhoneApplicationPage.ApplicationBar>
<shell:ApplicationBar IsVisible="True">
<shell:ApplicationBarIconButton IconUri="/icons/appbar.check.rest.png" Text="aplay"/>
</shell:ApplicationBar>
</phone:PhoneApplicationPage.ApplicationBar>
<Grid x:Name="RootLayout" >
<ScrollViewer>
<TextBox Text="TextBox" AcceptsReturn="True" VerticalScrollBarVisibility="Auto" />
</ScrollViewer>
</Grid>
There isn't a way to know for sure if the SIP is displayed. Jaime Rodriguez has a post showing how to make a fairly reliable guess of this.
If you want to have "buttons" that are always displayed then the best, and only reliable, way to do this is to use the ApplicationBar.

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