Hide scrollbar in LongListSelector - windows-phone-8

I'm using a LongListSelector and the scrollbar on the right is adding a bit of empty space which is messing up the design, so I want to hide it. I've tried the following:
ScrollBar sb = ((FrameworkElement)VisualTreeHelper.GetChild(FileList, 0))
.FindName("VerticalScrollBar") as ScrollBar;
sb.Width = 0;
But that's not working for wp8, I can make the width larger though but not smaller. It has a ScrollViewer.VerticalScrollBarVisibility property but changing it to Hidden or Disabled doesn't do anything.
/Edit:
This appears to work:
var sb = ((FrameworkElement) VisualTreeHelper.GetChild(FileList, 0))
.FindName("VerticalScrollBar") as ScrollBar;
sb.Margin = new Thickness(-10, 0, 0, 0);
But if anyone has a cleaner method I would still like to hear it.

You can address this by retemplating the whole control.
Add this resource:
<Style x:Key="LongListSelectorWithNoScrollBarStyle" TargetType="phone:LongListSelector">
<Setter Property="Background" Value="Transparent"/>
<Setter Property="Foreground" Value="{StaticResource PhoneForegroundBrush}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="phone:LongListSelector">
<Grid Background="{TemplateBinding Background}" d:DesignWidth="480" d:DesignHeight="800">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="ScrollStates">
<VisualStateGroup.Transitions>
<VisualTransition GeneratedDuration="00:00:00.5"/>
</VisualStateGroup.Transitions>
<VisualState x:Name="Scrolling" />
<VisualState x:Name="NotScrolling"/>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Grid Margin="{TemplateBinding Padding}">
<ViewportControl x:Name="ViewportControl" HorizontalContentAlignment="Stretch" VerticalAlignment="Top"/>
</Grid>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Use the resource
<phone:LongListSelector Style="{StaticResource LongListSelectorWithNoScrollBarStyle}">
....
</phone:LongListSelector>
Voila. No scrollbar.

Related

Create tabs in Windows 8.1 Universal app

I'm working on a Windows 8.1 Universal app (using VS2013) and I would like to create tabs inside the GridView. After searching, I found tabs cannot be created so I need some solution where I can create something that at least looks like tabs.
Here s what I need:
I have images as tab headers. When I click on each image (like Appbar icon) different StackPanel should appear on the same grid.
This is how I need my app to look like:
On phone, consider using the Pivot control. On desktop, there is no such control until you upgrade to Windows 10 UWP apps - where Pivot is present.
Otherwise, try this:
<Grid x:Name="grid" Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Interactivity:Interaction.Behaviors>
<Core:EventTriggerBehavior EventName="Loaded">
<Core:GoToStateAction StateName="Tab1State"/>
</Core:EventTriggerBehavior>
</Interactivity:Interaction.Behaviors>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="TabVisualStateGroup">
<VisualState x:Name="Tab1State">
<VisualState.Setters>
<Setter Target="Tab1Button.(ToggleButton.IsChecked)" Value="True"/>
<Setter Target="TabContent.SelectedItem" Value="{Binding ElementName=Tab1Content}"/>
</VisualState.Setters>
</VisualState>
<VisualState x:Name="Tab2State">
<VisualState.Setters>
<Setter Target="Tab2Button.(ToggleButton.IsChecked)" Value="True"/>
<Setter Target="TabContent.SelectedItem" Value="{Binding ElementName=Tab2Content}"/>
</VisualState.Setters>
</VisualState>
<VisualState x:Name="Tab3State">
<VisualState.Setters>
<Setter Target="Tab3Button.(ToggleButton.IsChecked)" Value="True"/>
<Setter Target="TabContent.SelectedItem" Value="{Binding ElementName=Tab3Content}"/>
</VisualState.Setters>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition />
</Grid.RowDefinitions>
<StackPanel Grid.Row="0" Orientation="Horizontal">
<!-- re-template radiobuttons as togglebuttons -->
<StackPanel.Resources>
<Style TargetType="RadioButton">
<Setter Property="MinWidth" Value="0" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="RadioButton">
<ToggleButton IsChecked="{Binding IsChecked,
RelativeSource={RelativeSource Mode=TemplatedParent}, Mode=TwoWay}">
<ContentPresenter />
</ToggleButton>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</StackPanel.Resources>
<RadioButton GroupName="TabButtons" x:Name="Tab1Button">
<Interactivity:Interaction.Behaviors>
<Core:EventTriggerBehavior EventName="Checked">
<Core:GoToStateAction StateName="{Binding Name, ElementName=Tab1State}"/>
</Core:EventTriggerBehavior>
</Interactivity:Interaction.Behaviors>
<StackPanel Orientation="Horizontal">
<Rectangle Width="16" Height="16" Fill="Red" />
<TextBlock Margin="4,0" Text="Tab 1" />
</StackPanel>
</RadioButton>
<RadioButton GroupName="TabButtons" x:Name="Tab2Button">
<Interactivity:Interaction.Behaviors>
<Core:EventTriggerBehavior EventName="Checked">
<Core:GoToStateAction StateName="{Binding Name, ElementName=Tab2State}"/>
</Core:EventTriggerBehavior>
</Interactivity:Interaction.Behaviors>
<StackPanel Orientation="Horizontal">
<Rectangle Width="16" Height="16" Fill="Green" />
<TextBlock Margin="4,0" Text="Tab2" />
</StackPanel>
</RadioButton>
<RadioButton GroupName="TabButtons" x:Name="Tab3Button">
<Interactivity:Interaction.Behaviors>
<Core:EventTriggerBehavior EventName="Checked">
<Core:GoToStateAction StateName="{Binding Name, ElementName=Tab3State}"/>
</Core:EventTriggerBehavior>
</Interactivity:Interaction.Behaviors>
<StackPanel Orientation="Horizontal">
<Rectangle Width="16" Height="16" Fill="Blue" />
<TextBlock Margin="4,0" Text="Tab3" />
</StackPanel>
</RadioButton>
</StackPanel>
<FlipView x:Name="TabContent" Grid.Row="1">
<!-- if the user changes the item through the flipview -->
<Interactivity:Interaction.Behaviors>
<Core:DataTriggerBehavior Binding="{Binding SelectedItem.Name, ElementName=TabContent}" Value="{Binding Name, ElementName=Tab1Content}">
<Core:GoToStateAction StateName="{Binding Name, ElementName=Tab1State}"/>
</Core:DataTriggerBehavior>
<Core:DataTriggerBehavior Binding="{Binding SelectedItem.Name, ElementName=TabContent}" Value="{Binding Name, ElementName=Tab2Content}">
<Core:GoToStateAction StateName="{Binding Name, ElementName=Tab2State}"/>
</Core:DataTriggerBehavior>
<Core:DataTriggerBehavior Binding="{Binding SelectedItem.Name, ElementName=TabContent}" Value="{Binding Name, ElementName=Tab3Content}">
<Core:GoToStateAction StateName="{Binding Name, ElementName=Tab3State}"/>
</Core:DataTriggerBehavior>
</Interactivity:Interaction.Behaviors>
<Grid Background="Red" x:Name="Tab1Content">
<!-- content -->
</Grid>
<Grid Background="Green" x:Name="Tab2Content">
<!-- content -->
</Grid>
<Grid Background="Blue" x:Name="Tab3Content">
<!-- content -->
</Grid>
</FlipView>
</Grid>
Be sure you reference the XAML Behaviors SDK.
Review the code. The trick is in the Visual States. You can update those to do anything you want, including updating multiple controls. Whatever you need.
Looks like this:
Best of luck!

How to get dependency property by name in Windows Runtime?

I need it to implement binding in setters.
Or are there any other workarounds to be able to set binding in style setters for Windows runtime?
What kind of binding?
e.g.
<Setter Property="BorderThickness" Value="{ThemeResource TextControlBorderThemeThickness}"/>
Ok, then you should do something like this:
Here you can't bind a value to Padding.
<Style x:Key="GridViewItemStyle" TargetType="GridViewItem">
<Setter Property="Padding" Value="0"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="GridViewItem">
<GridViewItemPresenter Padding="{TemplateBinding Padding}"
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
You can bind it that way:
<Style x:Key="GridViewItemStyle" TargetType="GridViewItem">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="GridViewItem">
<GridViewItemPresenter Padding="{Binding PaddingValue}"
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>

How to add custom controls in the app bar in windows phone 8.1?

I want to add custom controls, like a slider bar or a button in the secondary section of the app bar in windows phone 8.1, like the one in the app bar of camera app.
Any idea how to do it?
So, it appears, that my solution works only in designer, tried another, but which also only worked in designer. So I would conclude that it is impossible to put in commandbar anything other than default buttons, my attempts were as following:
I tried to apply this style to AppbarButoon, button changed to slider in designer, but on the phone it style has been overriden
<Style x:Key="ButtonStyle1" TargetType="Button">
<Setter Property="Background" Value="Transparent"/>
<Setter Property="BorderBrush" Value="{ThemeResource PhoneForegroundBrush}"/>
<Setter Property="Foreground" Value="{ThemeResource PhoneForegroundBrush}"/>
<Setter Property="BorderThickness" Value="{ThemeResource PhoneBorderThickness}"/>
<Setter Property="FontFamily" Value="{ThemeResource PhoneFontFamilyNormal}"/>
<Setter Property="FontWeight" Value="{ThemeResource PhoneButtonFontWeight}"/>
<Setter Property="FontSize" Value="{ThemeResource TextStyleLargeFontSize}"/>
<Setter Property="Padding" Value="9.5,0"/>
<Setter Property="MinHeight" Value="{ThemeResource PhoneButtonMinHeight}"/>
<Setter Property="MinWidth" Value="{ThemeResource PhoneButtonMinWidth}"/>
<Setter Property="HorizontalAlignment" Value="Left"/>
<Setter Property="VerticalAlignment" Value="Center"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Grid x:Name="Grid" Background="Transparent">
<Slider ValueChanged="RangeBase_OnValueChanged" Width="100" Background="{TemplateBinding Background}" Foreground="{TemplateBinding Foreground}" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Second approach was to derive from slider and implement ICommandBarElement, it seemed to be working untill I run it under emulator, Slider didn't even showed up.
public sealed class CommandBarSlider : Slider, ICommandBarElement
{
public CommandBarSlider()
{
this.DefaultStyleKey = typeof(Slider);
}
public bool IsCompact { get; set; }
}
The obvious conclusion to be drawn from these codes is that what you're trying to do is either impossible, or I've overlooked something.
(Probably I've overlooked something )

ListBox isSelected method changes text style

simple noob question again. I have a windows 8 phone app with a ListBox loaded with ListBoxItems (that are just plain text). I set the foreground color of the text to white in xaml:
<ListBox x:Name="L1" Foreground="white">
Once I invoke the SelectedIndex property of ListBox, the foreground changes to red. It does this whether I set it in xaml or c#. If I try and add code in c# to change the color manually after SelectedIndex has been invoked, it still doesn't work...
tempListBoxItem = listBoxPicType.SelectedItem as ListBoxItem;
tempListBoxItem.Foreground = //some color that isn't red
what is the simplest way to get around this? TIA
It has a simple way to achieve it, you can change the ListBoxItem ControlTemplate. This is the code for details
you can put the style within the resource of the PhoneApplicationPage, change the Selected VisualState
<Style x:Key="ListBoxItemStyle1" TargetType="ListBoxItem">
<Setter Property="Background" Value="Transparent"/>
<Setter Property="BorderThickness" Value="0"/>
<Setter Property="BorderBrush" Value="Transparent"/>
<Setter Property="Padding" Value="0"/>
<Setter Property="HorizontalContentAlignment" Value="Left"/>
<Setter Property="VerticalContentAlignment" Value="Top"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListBoxItem">
<Border x:Name="LayoutRoot" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" HorizontalAlignment="{TemplateBinding HorizontalAlignment}" VerticalAlignment="{TemplateBinding VerticalAlignment}">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal"/>
<VisualState x:Name="MouseOver"/>
<VisualState x:Name="Disabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="LayoutRoot">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource TransparentBrush}"/>
</ObjectAnimationUsingKeyFrames>
<DoubleAnimation Duration="0" To=".5" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="ContentContainer"/>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="SelectionStates">
<VisualState x:Name="Unselected"/>
<VisualState x:Name="Selected">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentContainer">
<!--The selected state, change the value to your color-->
<DiscreteObjectKeyFrame KeyTime="0" Value="Your Color"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<ContentControl x:Name="ContentContainer" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" Foreground="{TemplateBinding Foreground}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
ListBox
<ListBox ItemContainerStyle="{StaticResource ListBoxItemStyle1}"/>
Wish this can help you. Thanks

Windows Phone 8: remove pivot header

I have got a strange problem with the styling of my pivot control.
I edited a copy of the default template in Expression Blend because I want to remove the entire header.
The adapted style:
<Style x:Key="PivotWithoutHeader" TargetType="phone:Pivot">
<Setter Property="Margin" Value="0"/>
<Setter Property="Padding" Value="0"/>
<Setter Property="Foreground" Value="{StaticResource PhoneForegroundBrush}"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="ItemsPanel">
<Setter.Value>
<ItemsPanelTemplate>
<Grid/>
</ItemsPanelTemplate>
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="phone:Pivot">
<Grid HorizontalAlignment="{TemplateBinding HorizontalAlignment}" VerticalAlignment="{TemplateBinding VerticalAlignment}">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid Background="{TemplateBinding Background}" Grid.RowSpan="3"/>
<!--<ContentControl ContentTemplate="{TemplateBinding TitleTemplate}" Content="{TemplateBinding Title}" HorizontalAlignment="Left" Margin="24,17,0,-7" Style="{StaticResource PivotTitleStyle}"/>-->
<Primitives:PivotHeadersControl x:Name="HeadersListElement" Grid.Row="1"/>
<ItemsPresenter x:Name="PivotItemPresenter" Margin="{TemplateBinding Padding}" Grid.Row="2"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
And the usage of my style:
<phone:Pivot Grid.Row="1" x:Name="Objects" ItemsSource="{Binding Profiles}"
Style="{StaticResource PivotWithoutHeader}">
<phone:Pivot.ItemContainerStyle>
<Style TargetType="phone:PivotItem">
<Setter Property="HorizontalAlignment" Value="Stretch" />
</Style>
</phone:Pivot.ItemContainerStyle>
<phone:Pivot.ItemTemplate>
<DataTemplate>
<Grid>
<Image Source="Resources/homer.png"/>
<TextBlock Text="{Binding Name}"/>
<TextBlock Text="#Sample" />
<Button Margin="347,0,0,0" Command="{Binding DataContext.SettingsCommand, ElementName=Objects}" CommandParameter="{Binding .}" />
</Grid>
</DataTemplate>
</phone:Pivot.ItemTemplate>
</phone:Pivot>
My thought was just to remove or set the visibility of <Primitives:PivotHeadersControl> to collapsed but then my app crashes without any exception and the following message in my output window: "The program '[2332] TaskHost.exe' has exited with code -1073741819 (0xc0000005) 'Access violation'" appears.
I read some posts to move up the pivot so that the header is out of the screen but I need my customized pivot at the bottom of my page with some other controls above it.
Does anybody have an idea how to remove the header?
EDIT: For clarity I want to remove title and header.
You can remove the PivotItem header on the Pivot Control by replacing the Pivot.HeaderTemplate property with a blank DataTemplate. If you're trying to remove the Title rather than the Header, then I would like to know the solution too. ^^
<phone:Pivot ItemsSource="{Binding Data}" ItemTemplate="{StaticResource CustomPivotItemTemplate}">
<phone:Pivot.HeaderTemplate>
<DataTemplate/>
</phone:Pivot.HeaderTemplate>
</phone:Pivot>
Try this one:
<UserControl.Resources>
<ResourceDictionary>
<Thickness x:Key="PivotPortraitThemePadding">0,0,0,0</Thickness>
<Thickness x:Key="PivotLandscapeThemePadding">0,0,0,0</Thickness>
<Style x:Key="PivotWithoutHeaderStyle" TargetType="Pivot">
<Setter Property="Margin" Value="0"/>
<Setter Property="Padding" Value="0"/>
<Setter Property="Foreground" Value="{ThemeResource PhoneForegroundBrush}"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="ItemsPanel">
<Setter.Value>
<ItemsPanelTemplate>
<Grid/>
</ItemsPanelTemplate>
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Pivot">
<Grid x:Name="RootElement" Background="{TemplateBinding Background}" HorizontalAlignment="{TemplateBinding HorizontalAlignment}" VerticalAlignment="{TemplateBinding VerticalAlignment}">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="Orientation">
<VisualState x:Name="Portrait">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Margin" Storyboard.TargetName="TitleContentControl">
<DiscreteObjectKeyFrame KeyTime="0" Value="0"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Landscape">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Margin" Storyboard.TargetName="TitleContentControl">
<DiscreteObjectKeyFrame KeyTime="0" Value="0"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<ContentControl x:Name="TitleContentControl" ContentTemplate="{TemplateBinding TitleTemplate}" Content="{TemplateBinding Title}" Style="{StaticResource PivotTitleContentControlStyle}" Height="0"/>
<ScrollViewer x:Name="ScrollViewer" HorizontalSnapPointsAlignment="Center" HorizontalSnapPointsType="MandatorySingle" HorizontalScrollBarVisibility="Hidden" Margin="0" Grid.Row="1" Template="{StaticResource ScrollViewerScrollBarlessTemplate}" VerticalSnapPointsType="None" VerticalScrollBarVisibility="Disabled" VerticalScrollMode="Disabled" VerticalContentAlignment="Stretch" ZoomMode="Disabled">
<PivotPanel x:Name="Panel" VerticalAlignment="Stretch">
<PivotHeaderPanel x:Name="Header" Background="{TemplateBinding BorderBrush}" Height="0" Margin="0" Visibility="Collapsed">
<PivotHeaderPanel.RenderTransform>
<CompositeTransform x:Name="HeaderTranslateTransform" TranslateX="0"/>
</PivotHeaderPanel.RenderTransform>
</PivotHeaderPanel>
<ItemsPresenter x:Name="PivotItemPresenter">
<ItemsPresenter.RenderTransform>
<TranslateTransform x:Name="ItemsPresenterTranslateTransform" X="0"/>
</ItemsPresenter.RenderTransform>
</ItemsPresenter>
</PivotPanel>
</ScrollViewer>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ResourceDictionary>
</UserControl.Resources>
...
<Pivot Style="{StaticResource PivotWithoutHeaderStyle}">
...
The template of the Pivot control was changed in WP8 and it now requires that the PivotHeadersControl be present in the template. (You could remove it in WP7.x)
Just have a zero height or other "empty" content in your header instead.
I'm not aware of this having been publically documented as most people who've upgraded to WP8 are using the shim to the old version of the control. However, I Noted this at the end of a blog article at http://blog.mrlacey.co.uk/2013/01/pivot-and-panorama-have-moved-and.html
So removing the header AND the title doesn't work anymore on Windows Phone 8.
So I ported an existing control from: http://www.codeproject.com/Articles/136786/Creating-an-Animated-ContentControl to Windows Phone 8.
dBlisse's solution worked for me to hide the header template but for title I played with margins and the below trick worked for me, not sure if this is a good idea, but checked on different resolutions and looks fine.
Notice the Margin="0,-39,0,0" for stack panel below:
<phone:Pivot Background="Transparent" Margin="-12,0">
<phone:Pivot.ItemTemplate>
<DataTemplate>
<StackPanel Margin="0,-39,0,0">
YOUR CONTROLS HERE
</StackPanel>
</DataTemplate>
</phone:Pivot.ItemTemplate>
<phone:Pivot.HeaderTemplate>
<DataTemplate/>
</phone:Pivot.HeaderTemplate>
</phone:Pivot>
I finally figured it out! (I'm building a Universal Windows 10 App and had the same question.)
Add a blank HeaderTemplate to your Pivot controls as dBlisse suggested:
<Pivot ItemsPanel="{StaticResource ItemsPanelTemplate1}">
<Pivot.HeaderTemplate>
<DataTemplate/>
</Pivot.HeaderTemplate>
</Pivot>
And add this template in App.xaml:
<ItemsPanelTemplate x:Key="ItemsPanelTemplate1">
<Grid Margin="0,-48,0,0"/>
</ItemsPanelTemplate>