enter image description hereI have ListBoox
<ListBox>
<x:String>1</x:String>
<x:String>2</x:String>
<x:String>3</x:String>
<x:String>4</x:String>
<ListBox.ItemContainerStyle>
<Style TargetType="ListBoxItem">
<Setter Property="HorizontalContentAlignment" Value="Center" />
</Style>
</ListBox.ItemContainerStyle>
<ListBox.ItemTemplate>
<DataTemplate>
<Grid Background="Green" >
<TextBlock Text="{Binding}" />
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal" Background="Yellow"></StackPanel>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
I need the items of the ListBox to be stretched across the entire screen (list). It works perfectly if the StackPanel's orientation is vertical but in my case the orientation is horizontal and it doesn't work at all. Any ideas, suggestions - I need help
You can use
HorizontalAlignment="Stretch"
to stretch XAML containers like StackPanels over the entire space.
Related
I currently have the following XAML for a ListView, and I want the individual panels to scroll vertically and independently of each other.
Currently, when I use the scrolling function in the stack panel, panel 1, 2 and 3 all scroll vertically together. Importantly, I do not know how many panels there will be, sometimes there will be one, and on another day there could be six.
I would like for the panels to scroll vertically and independently of the other panels.
The thing I am struggling to achieve is to make the <ListView.ItemsPanel> dynamic enough to create individual stack panels, based on the groups in the data. I assume this will make the <GroupStyle.Panel> work independently.
I thought that the <ItemsPanelTemplate> would treat them as individuals and not as a whole group.
The XAML I currently have is as follows:
<ListView Grid.Column="1" Grid.Row="0" Grid.RowSpan="2"
ItemsSource="{Binding Source={StaticResource SomeData Mode=OneWay}"
ScrollViewer.HorizontalScrollBarVisibility="Auto" ScrollViewer.HorizontalScrollMode="Enabled">
<ListView.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal" Spacing="4"/>
</ItemsPanelTemplate>
</ListView.ItemsPanel>
<ListView.GroupStyle>
<GroupStyle>
<GroupStyle.HeaderTemplate>
<DataTemplate>
<Grid Width="150">
<TextBlock Text="{Binding Title, TargetNullValue='No Data'}"/>
</Grid>
</DataTemplate>
</GroupStyle.HeaderTemplate>
<GroupStyle.Panel>
<ItemsPanelTemplate>
<StackPanel ScrollViewer.VerticalScrollMode="Enabled" Orientation="Vertical" Spacing="4"/>
</ItemsPanelTemplate>
</GroupStyle.Panel>
<GroupStyle.ContainerStyle>
<Style TargetType="GroupItem">
<Setter Property="Background" Value="Gray" />
<Setter Property="BorderBrush" Value="Gray" />
<Setter Property="BorderThickness" Value="4" />
</Style>
</GroupStyle.ContainerStyle>
</GroupStyle>
</ListView.GroupStyle>
</ListView>
I have made an ListView ItemTemplate and I want it to be responsive (when orientation changes, for example, the listView item changes in size). I am using a Grid as a control for the inner elements of the grid but it is not behaving. The ListView.ItemContainerStyle has property HorizontalAlignment="Stretch" which is the behaviour I want, and the ItemContainerStyle is the correct width. Inside the Border and Grid I have the same HorizontalAlignment="Stretch" and they are overflowing when the TextBox contained inside has lots of text, and when there is little or no text in the TextBox the Border element shrinks to be smaller than the ItemContainerStyle is showing.
<ListView ItemsSource="{Binding TileStories}" x:Name="cont" Margin="0,10,0,10" Background="{StaticResource CustomResourceBrush}" BorderBrush="{StaticResource CustomResourceBrush}" Foreground="{StaticResource CustomResourceBrush}">
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
<Setter Property="Margin" Value="20,10,20,10" />
<Setter Property="Foreground" Value="{StaticResource BTVioletBrush}" />
</Style>
</ListView.ItemContainerStyle>
<ListView.ItemTemplate>
<DataTemplate>
<Border CornerRadius="20" BorderThickness="0" Width="{Binding ScrollViewerWidth}" Background="White" HorizontalAlignment="Stretch">
<StackPanel Height="160" Orientation="Horizontal">
<Grid Background="black">
<TextBox Text="Example">
</Grid>
</StackPanel>
</Border>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
Just do this
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
</Style>
</ListView.ItemContainerStyle>
<ListView.ItemTemplate>
<DataTemplate>
<Grid HorizontalAlignment="Stretch">
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
Define MinHeight as 0 for ItemContainerStyle
Add to your ItemContainerStyle
<Setter Property="HorizontalContentAlignment"
Value="Stretch" />
And I think Width="{Binding ScrollViewerWidth}" is not required. You can remove this.
I didn't exactly find a solution but I did find a workaround. The Grid was being bound with Width="0" if I used {Binding ActualWidth, ElementName=StackPanel, Mode=OneWay} where StackPanel was the panel within the data template. I was poking around the designer in VS2013 and figured out that the Width was 0 because (I am assuming) the items in the data template are drawn one by one and therefore the Width was zero when the first template was drawn and so on and so forth. I haven't explained that very well I guess, but the important thing is the solution:
<PivotItem x:Name="Feed">
....
<Border CornerRadius="20" BorderThickness="0" Background="White" HorizontalAlignment="Stretch">
<StackPanel Height="160" Orientation="Horizontal">
<Grid HorizontalAlignment="Stretch" Width="{Binding ActualWidth, ElementName=Feed, Mode=OneWay}">
........
</Grid>
</StackPanel>
</Border>
...
</PivotItem>
I think that the PivotItem having a non-variable Width meant the Grid had a concrete Width to inherit from.
SOLUTION
The shortest Code to archieve the desired result was for me:
<ItemsControl ItemsSource="{Binding GeneralBoolSettings}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<Grid>
<ToggleSwitch IsOn="{Binding IsOn, Mode=TwoWay}" OffContent="{Binding OffContent}" OnContent="{Binding OnContent}" />
</Grid>
</DataTemplate>
</ItemsControl.ItemTemplate>
<ItemsControl.ItemContainerStyle>
<Style TargetType="ContentPresenter">
<Setter Property="HorizontalAlignment" Value="Stretch"/>
</Style>
</ItemsControl.ItemContainerStyle>
</ItemsControl>
ORIGINAL QUESTION
I'm having trouble with something as easy as stretching the Items of an ItemControl horizontally. As I'm working with XAML, I dont have things like SharedSizeGroupas in WPF.
The solutioon presented here: Horizontally Stretch Content in an ItemsControl does unfortunately not work for me.
My Code:
<ItemsControl ItemsSource="{Binding GeneralBoolSettings}" HorizontalContentAlignment="Stretch">
<ItemsControl.ItemTemplate>
<DataTemplate>
<Grid>
<ToggleSwitch IsOn="{Binding IsOn, Mode=TwoWay}" OffContent="{Binding OffContent}" OnContent="{Binding OnContent}" />
</Grid>
</DataTemplate>
</ItemsControl.ItemTemplate>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Vertical" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
Some Screenshots from the Designer:
ItemControl has the correct (stretched) Size
DataTemplate is already too small
I would like to avoid binding to a parent width; in my previous attempts, the width was sometimes (re-)set to 0, and I would have had to remove the binding and add it again. Also: Please no code and / or event catcher, there must be an elegant solution to this rather basic problem!
Honestly, I'm a bit surprised I can't get this to work. Mabye you can recommend a good book / website to learn a systematic approach of the basics of XAML (while we're at it)?
You also need to set the horizontal alignment of each item container to stretch using ItemContainerStyle property of ItemsControl.
<ItemsControl ItemsSource="{Binding GeneralBoolSettings}" HorizontalContentAlignment="Stretch">
<ItemsControl.ItemTemplate>
<DataTemplate>
<Grid>
<ToggleSwitch IsOn="{Binding IsOn, Mode=TwoWay}" OffContent="{Binding OffContent}" OnContent="{Binding OnContent}" />
</Grid>
</DataTemplate>
</ItemsControl.ItemTemplate>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Vertical" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemContainerStyle>
<Style TargetType="ContentPresenter">
<Setter Property="HorizontalAlignment" Value="Stretch"/>
</Style>
</ItemsControl.ItemContainerStyle>
</ItemsControl>
This problem is about the listbox itself and not it's cells. If I put listbox into a viewbox, and click on an item, the whole listbox will be surrounded with a 1px border. I do not want that, because it is ugly. How to remove this border?
Details:
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Viewbox Grid.Row="1" Stretch="Uniform">
<StackPanel Orientation="Horizontal" Margin="0,20,0,20">
<Grid Width="200">
<ListBox ItemsSource="{Binding Rajzelemek}" Background="{x:Null}">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<ContentControl Background="{ThemeResource ApplicationPageBackgroundThemeBrush}" Content="{Binding Ikonja}" Width="25" Height="25" VerticalAlignment="Center" />
<TextBlock Text="{Binding}" VerticalAlignment="Center" Foreground="{ThemeResource ApplicationForegroundThemeBrush}" />
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Vertical" Background="{ThemeResource ApplicationPageBackgroundThemeBrush}" />
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
</Grid>
</StackPanel>
</Viewbox>
</Grid>
If I comment the <Viewbox Grid.Row.... part, everything is fine, but not scaled. I want stuff to get scaled, well that is why I use the viewbox, but I do not want this border:
The code above was put on a metro BlankPage1 too, and made the same thing.
I think you're looking for what's in the ListBoxItem template wherein there's a Rectangle acting as a Focus Visual, if you check out the default template you'll see it with a default brush attributed to it (FocusVisualWhiteStrokeThemeBrush) which you could either change in the template, or provide your own resource for it to find before it hits the default dictionaries like;
<SolidColorBrush x:Key="FocusVisualWhiteStrokeThemeBrush" Color="Transparent" />
Hope this helps.
EDIT
Sorry I was going by the picture you have, thought it was the item. In any case since your ViewBox is the culprit you just need to interact with the Border control within it >like you showed in a previous post of your own< where you're the one making that border. Something like;
<Viewbox>
<Viewbox.Resources>
<Style TargetType="Border">
<Setter Property="BorderBrush" Value="Transparent" />
<Setter Property="BorderThickness" Value="0" />
</Style>
</Viewbox.Resources>
...
</ViewBox>
I use a wrapgrid as the itemspaneltemplate in my app
<GridView x:Name="InfoGridView" Margin="50">
<GridView.ItemsPanel>
<ItemsPanelTemplate>
<WrapGrid Orientation="Vertical" ItemWidth="200" ItemHeight="50" Height="400" HorizontalAlignment="Left" VerticalAlignment="Top"/>
</ItemsPanelTemplate>
</GridView.ItemsPanel>
<TextBlock Text="Name" Style="{StaticResource AppNameTextStyle}" />
<TextBox x:Name="NameTextBox" Width="180"/>
<Button x:Name="AnotherNameButton" Style="{StaticResource AddAppBarButtonStyle}"/>
</GridView>
The TextBlock, TextBox and the Button are display in the middle of the item, how to let them display keep left?
Set this up on the ItemContainerStyle within your GridView by adding the following XAML below your ItemsPanel entry.
<GridView.ItemContainerStyle>
<Style TargetType="GridViewItem">
<Setter Property="HorizontalContentAlignment" Value="Left" />
</Style>
</GridView.ItemContainerStyle>