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.
Related
I create UWP Application and using RelativePanel.
I use relative panel.alignwithright, top, left, bottom panel for stretch width to listview.
But after add other element (ex. Stackpanel) to right of listview, other panel do not view in page.
So i remove relativePanel.AlignWithRight, in this case can not width stretch in listview.
What can i do?
Code:
<RelativePanel x:Name="Information" Grid.Row="1">
<ListView x:Name="MyList"
RelativePanel.AlignBottomWithPanel="True"
RelativePanel.AlignTopWithPanel="True"
RelativePanel.AlignRightWithPanel="True"
RelativePanel.AlignLeftWithPanel="True">
<ListView.ItemTemplate>
<DataTemplate>
<userControl:SpendListItem_Template Tapped="SpendListItem_Template_Tapped" ></userControl:SpendListItem_Template>
</DataTemplate>
</ListView.ItemTemplate>
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch"></Setter>
<Setter Property="Margin" Value="10,0,10,10"></Setter>
</Style>
</ListView.ItemContainerStyle>
</ListView>
<StackPanel x:Name="TotalInformation" RelativePanel.RightOf="MyList" Width="100">
<TextBlock>Test Data</TextBlock>
</StackPanel>
</RelativePanel>
I am pretty sure you can't do this in pure XAML by just setting the some of the RelativePanel attached properties but you could handle the SizeChanged event of RelativePanel and set the width of the ListView programmatically. It's a one liner:
private void Information_SizeChanged(object sender, SizeChangedEventArgs e)
{
MyList.Width = Information.ActualWidth - TotalInformation.ActualWidth;
}
<RelativePanel x:Name="Information" Grid.Row="1" SizeChanged="Information_SizeChanged">
<ListView x:Name="MyList">
<ListView.ItemTemplate>
<DataTemplate>
<userControl:SpendListItem_Template Tapped="SpendListItem_Template_Tapped" ></userControl:SpendListItem_Template>
</DataTemplate>
</ListView.ItemTemplate>
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch"></Setter>
<Setter Property="Margin" Value="10,0,10,10"></Setter>
</Style>
</ListView.ItemContainerStyle>
</ListView>
<StackPanel x:Name="TotalInformation" RelativePanel.RightOf="MyList" Width="100">
<TextBlock>Test Data</TextBlock>
</StackPanel>
</RelativePanel>
I want to strech a ListBox with its ListBoxItem. Streching the ListBox itself isn't a problem. The problem seems to be, to tell the ListBoxItem to use the available space in the ListBox.
<Page.Content>
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}" Height="200">
<ListBox VerticalContentAlignment="Stretch" VerticalAlignment="Stretch" Background="Green" ItemsSource="{x:Bind Path=ChessFieldList}" >
<ListBox.ItemTemplate>
<DataTemplate >
<StackPanel HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Background="Yellow" BorderBrush="Red" BorderThickness="3" >
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
</Page.Content>
The image below shows the above and expected result.
How can I achieve the expected result?
[Edit] An other and in my opinion the correct solution: Set Width and Height of ItemsControl Children
This is a common problem. All you need to do is set the HorizontalContentAlignment of the ListBoxItems too:
<ListBox Background="Green" ItemsSource="{x:Bind ChessFieldList}">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Background="Yellow" BorderBrush="Red" BorderThickness="3" Height="50">
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
<ListBox.ItemContainerStyle>
<Style TargetType="ListBoxItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
</Style>
</ListBox.ItemContainerStyle>
</ListBox>
Since the StackPanel doesn't contain any content, it won't have any height, so I've just added Height="50" to it for the purpose of this demonstration.
Simply add
<ListBox.ItemContainerStyle>
<Style TargetType="ListBoxItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch"/>
</Style>
</ListBox.ItemContainerStyle>
If you use grouping, you should include:
<ListView.GroupStyle>
<GroupStyle HidesIfEmpty="False">
<GroupStyle.HeaderContainerStyle>
<Style TargetType="ListViewHeaderItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
<Setter Property="VerticalContentAlignment" Value="Stretch" />
</Style>
</GroupStyle.HeaderContainerStyle>
</GroupStyle>
</ListView.GroupStyle>
It's a bit more than you asked for, but it's a little-known technique.
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>
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.
How can I make content of each ListView item expands to 100% width when using a DataTemplate?
I have tried HorizontalContentAlignment="Stretch" in the ListView and HorizontalAlignment="Stretch" in the DataTemplate, but nothing seems to work, content is still aligned to the left.
I have something like this:
<ListView x:Name="questionsView" Background="{StaticResource ApplicationPageBackgroundThemeBrush}" HorizontalContentAlignment="Stretch">
<ListView.ItemTemplate>
<DataTemplate>
<Border Background="BlueViolet" HorizontalAlignment="Stretch">
<Grid HorizontalAlignment="Stretch">
<TextBlock Text="{Binding}" />
<TextBlock HorizontalAlignment="Right">16 minutes ago</TextBlock>
</Grid>
</Border>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
I guess there is one more layer between the ListView and the ItemTemplate.
I got it. Setting the ListView.ItemContainerStyle with a HorizontalContentAlignment setter makes the trick. I.e.:
<ListView x:Name="questionsView" Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
<ListView.ItemTemplate>
<DataTemplate>
<Border Background="BlueViolet">
<Grid HorizontalAlignment="Stretch" Margin="0">
<TextBlock Text="{Binding}" />
<TextBlock HorizontalAlignment="Right">16 minutes ago</TextBlock>
</Grid>
</Border>
</DataTemplate>
</ListView.ItemTemplate>
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
</Style>
</ListView.ItemContainerStyle>
</ListView>
Set the item container's property of HorizontalContentAlignment to Stretch, try this
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
</Style>
</ListView.ItemContainerStyle>
What is important here is the ScrollViewer.HorizontalScrollBarVisibility, TextWrapping and ItemContainerStyle with HorizontalContentAlignment. The rest is fluff.
<ListView VerticalAlignment="Stretch"
ScrollViewer.VerticalScrollBarVisibility="Auto"
ScrollViewer.HorizontalScrollBarVisibility="Disabled">
<ListView.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding Prop1}" TextWrapping="Wrap"/>
</DataTemplate>
</ListView.ItemTemplate>
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
</Style>
</ListView.ItemContainerStyle>
</ListView>