The following code gives me the error (cannot add type Object to Stackpanel).
How can I say .ToString() in XAML?
<Window.Resources>
<Style TargetType="{x:Type ListBoxItem}">
<Setter Property="Content">
<Setter.Value>
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding Path=FirstName}"/>
</StackPanel>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
<Grid>
<ListBox x:Name="theCustomers"/>
</Grid>
binding in code-behind with ADO.NET Entity Framework:
MainEntities db = new MainEntities();
var customers = from c in db.CustomersSet
select c;
theCustomers.ItemsSource = customers;
You need to set the property ContentTemplate, not Content.
Try:
<Setter Property="ContentTemplate" >
<Setter.Value>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding Path=FirstName}"/>
<TextBlock Text=" "/>
<TextBlock Text="{Binding Path=LastName}"/>
</StackPanel>
</DataTemplate>
</Setter.Value>
</Setter>
See this article
Related
I´m developing an app in .net maui and i have a question i have not answered myself through browsing.
I'm trying to apply a shadow to a border and the following code works perfectly.
<Border
Style="{StaticResource light-theme-border}"
Grid.Column="1"
Grid.Row="3"
Grid.ColumnSpan="7">
<Border.Shadow>
<Shadow
Brush="red"
Offset="1,11"
Radius="20"
Opacity="0.25"/>
</Border.Shadow>
</Border>
But when i write shadow directly inside the border properties it catches the property but i don't know how to dump the [brush, offset, radius & opacity] info:
<Border
Style="{StaticResource light-theme-border}"
Grid.Column="1"
Grid.Row="3"
Grid.ColumnSpan="7"
Shadow="???????????????????????????">
</Border>
You can then define and consume it as a resource (same what you did with Style property):
<ContentPage.Resources>
<ResourceDictionary>
<Shadow
x:Key="CommonShadow"
Brush="red"
Offset="1,11"
Radius="20"
Opacity="0.25"/>
<Border
Style="{StaticResource light-theme-border}"
Grid.Column="1"
Grid.Row="3"
Grid.ColumnSpan="7"
Shadow="{StaticResource CommonShadow}">
</Border>
Or integrate it in your existing style of Border
<ContentPage.Resources>
<ResourceDictionary>
<Style x:Key="light-theme-border" TargetType="Border">
<Setter Property="WidthRequest" Value="20" />
<Setter Property="Shadow">
<Setter.Value>
<Shadow
Brush="red"
Opacity="1"
Radius="50"
Offset="20,20" />
</Setter.Value>
</Setter>
</Style>
<Border
Style="{StaticResource light-theme-border}"
Grid.Column="1"
Grid.Row="3"
Grid.ColumnSpan="7">
</Border>
Or integrate it in your existing style of Border as a static resource
<ContentPage.Resources>
<ResourceDictionary>
<Shadow
x:Key="CommonShadow"
Brush="red"
Offset="1,11"
Radius="20"
Opacity="0.25"/>
<Style x:Key="light-theme-border" TargetType="Border">
<Setter Property="WidthRequest" Value="20" />
<Setter Property="Shadow" Value="{StaticResource CommonShadow}"/>
</Style>
</ResourceDictionary>
</ContentPage.Resources>
<Border
Style="{StaticResource light-theme-border}"
Grid.Column="1"
Grid.Row="3"
Grid.ColumnSpan="7">
</Border>
I'm porting over some Win RT code to UWP. One of the pages that doesn't work as expected is the HubPage.
I have a button in the HubSection HeaderTemplate which should be replacing the "see more" HyperLink. My button in my template appears but doesn't accept clicks.
The documentation states that I should be able to replace the "see more" hyperlink with my own template, I believe this is what my code is doing but doesn't work.
I'm unsure what value IsHeaderInteractive should be if I've attempting to replace the HubSection HeaderTemplate. Any help apprecaited
<Page
x:Class="Hub_Page.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:Hub_Page"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<Page.Resources>
<Style TargetType="HubSection">
<Setter Property="HeaderTemplate">
<Setter.Value>
<DataTemplate>
<Button Content="This doesn't click!"
Background="DarkCyan" Tapped="UIElement_OnTapped"/>
</DataTemplate>
</Setter.Value>
</Setter>
</Style>
</Page.Resources>
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<Grid x:Name="outerGrid">
<Grid x:Name="innerGrid"
VerticalAlignment="Top">
<Hub x:Name="hub" SectionHeaderClick="Hub_OnSectionHeaderClick" >
<Hub.Header>
<!-- Back button and page title -->
<Grid>
<StackPanel Margin="13,0,20,0" Orientation="Horizontal">
<Button x:Name="backButton" Margin="0,0,20,0"/>
<TextBlock Text="x Manage Playlists" Margin="0,0,10,5" HorizontalAlignment="Left"/>
<Button Content="This does click"
Background="DarkGray" Tapped="UIElement_OnTapped"/>
</StackPanel>
</Grid>
</Hub.Header>
<!-- Playlists section -->
<HubSection Header="x Playlists" IsHeaderInteractive="True" >
<DataTemplate>
<ListView x:Name="playlistListView"
HorizontalAlignment="Stretch"
VerticalAlignment="Top"
SelectionMode="Single">
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
</Style>
</ListView.ItemContainerStyle>
<ListView.ItemTemplate>
<DataTemplate>
<!-- A playlist -->
<Grid HorizontalAlignment="Stretch">
<StackPanel Margin="10" Orientation="Vertical" HorizontalAlignment="Stretch" MaxWidth="500">
<TextBlock Text="{Binding Name}" TextTrimming="WordEllipsis" />
</StackPanel>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</DataTemplate>
</HubSection>
</Hub>
</Grid>
</Grid>
</Grid>
</Page>
It's by design. You could make your own HubSection's button by yourself. For example like the following:
<HubSection>
<DataTemplate>
<StackPanel>
<Button Content="Header" Click="Button_Click" Margin="0 0 0 10"></Button>
<TextBlock Text="here is content."></TextBlock>
</StackPanel>
</DataTemplate>
</HubSection>
I have a problem with binding the count to the textblock.
I have a listview that it's items are binded to a Users object properties.
I want to get the count of all items that were binded.
Here is my ListView:
<ListView ItemsSource="{Binding Users}" x:Name="lvUsers">
<ListView.ItemTemplate>
<DataTemplate>
<ListViewItem IsHitTestVisible="False">
<StackPanel>
<facebookControls:ProfilePicture Height="74" Width="74" ProfileId="{Binding FacebookId}" />
<TextBlock Text="{Binding UserName}" FontSize="18" HorizontalAlignment="Center" />
</StackPanel>
</ListViewItem>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
And here is my TextBlock:
<TextBlock Text="{Binding ElementName=lvUsers, Path=Items.Count, Mode=OneWay}" />
What am I doing wrong?
I know that if my ListView will be without Templates, just ListViewItems, it will work, but I need it to be like that.
Override the template for this ListView.
The sample below basically creates a style where it overrides the control template such that the regular ListView items (the ItemsPresenter) is wrapped in the StackPanel so that the TextBlock with count or whatever else can be added at the bottom.
<ListView ItemsSource="{Binding Users}">
<ListView.Style>
<Style TargetType="{x:Type ListView}">
<Style.Setters>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<Border BorderThickness="1" BorderBrush="LightGray">
<StackPanel>
<ScrollViewer>
<ItemsPresenter />
</ScrollViewer>
<TextBlock Margin="0,4" FontWeight="Bold">
<Run Text="Count: "/>
<Run Text="{Binding RelativeSource={RelativeSource AncestorType={x:Type ListView}}, Path=Items.Count, Mode=OneWay}"/>
</TextBlock>
</StackPanel>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style.Setters>
</Style>
</ListView.Style>
<ListView.ItemTemplate>
<DataTemplate>
<ListViewItem IsHitTestVisible="False">
<StackPanel>
<facebookControls:ProfilePicture Height="74" Width="74" ProfileId="{Binding FacebookId}" />
<TextBlock Text="{Binding UserName}" FontSize="18" HorizontalAlignment="Center" />
</StackPanel>
</ListViewItem>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
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>
I've got this bit of code in my page.xaml
<TextBox x:Name="NameTextField" Grid.ColumnSpan="7" Grid.Column="1" Text="{Binding Name, Mode=TwoWay}" Style="{StaticResource TextBoxStyle}" />
It refers to this style:
<Style x:Key="TextBoxStyle" TargetType="TextBox">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="TextBox">
<Grid x:Name="grid" Height="55" Background="White">
<Rectangle Stroke="#FFD9D9D9" StrokeThickness="6"/>
<ContentPresenter x:Name="contentPresenterText" VerticalAlignment="Center" Margin="6,0" Height="42" >
<TextBox Text="{TemplateBinding Text}" FontSize="21.333" FontFamily="Arial" FontWeight="Bold"/>
</ContentPresenter>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
This works ok when pre-populating data from the bind but does not seem to work the other way, when data is entered.
Is there something obvious I'm missing here?
Many thanks
Try changing:
<TextBox Text="{TemplateBinding Text}" FontSize="21.333" FontFamily="Arial" FontWeight="Bold"/>
to:
<TextBox Text="{Binding RelativeSource={RelativeSource TemplatedParent}, Mode=TwoWay, Path=Text}" FontSize="21.333" FontFamily="Arial" FontWeight="Bold"/>
TemplateBinding seems to default to a one-way bind.