I'm trying to customize the content I display inside a combobox. The source that I have is the following for the combobox definition:
<ComboBox
x:Name="ServicesComboBox"
Margin="36,220,36,0"
VerticalAlignment="Top"
SelectionChanged="ComboBox_SelectionChanged"
ItemTemplate="{StaticResource MetricService}"
BorderBrush="#CC000000">
The itemtemplate I'm using is the following:
<UserControl.Resources>
<DataTemplate x:Key="MetricService">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<TextBlock Text="{Binding MetricsName}" FontSize="16"/>
<TextBlock Text="{Binding MetricsProvider}" Foreground="#FF878787"
FontSize="16" Grid.Column="2" HorizontalAlignment="Right"/>
</Grid>
</DataTemplate>
</UserControl.Resources>
The result is this image:
The problem happens when I click the combobox, and what I see is this:
Is there any way to solve this?
You need to set the HorizontalContentAlignment of items to Stretch like this:
<ComboBox x:Name="ServicesComboBox"
Margin="36,220,36,0"
VerticalAlignment="Top"
BorderBrush="#CC000000"
SelectionChanged="ComboBox_SelectionChanged"
ItemTemplate="{StaticResource MetricService}">
<ComboBox.ItemContainerStyle>
<Style TargetType="ComboBoxItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
</Style>
</ComboBox.ItemContainerStyle>
</ComboBox>
Related
Relatively new to UWP, is it possible to bind a TextBlock of a DataTemplate (used for ItemTemplate in a listview) to a column outside of it, or is there any way to set the DataTemplate's grid columns' widths to the size of the "MainGrid"'s column definition widths? Code below to show what I'm trying to achieve.
<Grid x:Name="MainGrid">
<Grid.ColumnDefinitions>
<ColumnDefinition x:Name="Column1" Width="*"/>
<ColumnDefinition x:Name="Column2" Width="8*"/>
<ColumnDefinition x:Name="Column3" Width="*"/>
</Grid.ColumnDefinitions>
<ListView Name="recordList" ItemsSource="{x:Bind _recordingList, TargetNullValue=0}">
<ListView.ItemTemplate>
<DataTemplate x:DataType="local:Recording">
<Grid>
<TextBlock Grid.Column="{Binding Column1}" Name="TextBlock_Time" Text="{x:Bind Time}"/>
<TextBlock Grid.Column="{Binding Column2}" Name="TextBlock_Message" Text="{x:Bind Message}"/>
<TextBlock Grid.Column="{Binding Column3}" Name="TextBlock_Type" Text="{x:Bind Type}"/>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</Grid>
With the image below, I suppose imagine the red lines are the window. Essentially trying to get the columns to adapt to the window size changing.
example
I think you want listviewitem to be streched to the size of window. To achieve that you need to set HorizontalContentAlignment of listviewitem has to set to stretch in ItemContainerStyle
<ListView x:Name="MessagesList" BorderThickness="1" ItemsSource="{x:Bind _recordingList, TargetNullValue=0}" BorderBrush="Black">
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch"></Setter>
<Setter Property="Padding" Value="0"></Setter>
</Style>
</ListView.ItemContainerStyle>
<ListView.ItemTemplate>
<DataTemplate x:DataType="local:Recording">
<Grid BorderThickness="0,1,0,0" Padding="20" BorderBrush="{ThemeResource SystemControlForegroundBaseMediumBrush}">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="8*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBlock Text="{x:Bind Time,Mode=OneWay}"></TextBlock>
<TextBlock Grid.Column="1" Text="{x:Bind Message,Mode=OneWay}"></TextBlock>
<TextBlock Grid.Column="2" Text="{x:Bind Type,Mode=OneWay}"></TextBlock>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
You just need to move your columns to the template itself.
DataTemplate is a scheme that describes what and where. Because it's in ItemTemplate , then it means it's for every item.
<ListView Name="recordList" ItemsSource="{x:Bind _recordingList, TargetNullValue=0}">
<ListView.ItemTemplate>
<DataTemplate x:DataType="local:Recording">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition x:Name="Column1" Width="*" />
<ColumnDefinition x:Name="Column2" Width="8*" />
<ColumnDefinition x:Name="Column3" Width="*" />
</Grid.ColumnDefinitions>
<TextBlock
Name="TextBlock_Time"
Grid.Column="0"
Margin="20"
Foreground="Red"
Text="{x:Bind Time}" />
<TextBlock
Name="TextBlock_Message"
Grid.Column="1"
Margin="20"
Foreground="Green"
Text="{x:Bind Message}" />
<TextBlock
Name="TextBlock_Type"
Grid.Column="2"
Margin="20"
Foreground="LightBlue"
Text="{x:Bind Type}" />
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
That should make your items look like this.
Check out documentation, as it's explaining it nicely. There are templates in templates. So you can template a Container (how it should display items), and Items (how every item should look like).
Templates
Remember about HorizontalAlignment="Stretch" etc. as this means that the textblock (or Grid) will occupy all of it's space available (horizontally). Tinker with it and you'll get a grasp on how it works.
I created the following ListView to display some data (removed extraneous markup):
<ListView ItemsSource="{Binding NewYorkResidents}">
<ListView.Header>
<Style>
<Setter Property="HorizontalContentAlignment" Value="Stretch"></Setter>
</Style>
</ListView.Header>
<ListView.HeaderTemplate>
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="60"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBlock Text="Name" Grid.Column="0" />
<TextBlock Text="Address" Grid.Column="1" />
</Grid>
</DataTemplate>
</ListView.HeaderTemplate>
<ListView.ItemTemplate>
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="60"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBlock Text="{Binding Name}" Grid.Column="0" />
<TextBlock Text="{Binding Address}" Grid.Column="1" />
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
Now I want to reuse this exact same ListView + markup in a different view, just with a different ItemsSource (though it will bind to the same data type).
What is the best way to reuse the ListView and just specifiy the ItemsSource? I'm hoping to be able to do something like this:
<ListView DataTemplate="MyTemplate" ItemsSource=<some new binding> />
and still have it show the ListView headers and Name and Address TextBlocks using data from the ItemsSource.
Making a ControlTemplate doesn't seem like the right thing because I am specifiying actual data in the list view also (such as binding to name and address).
Is there a better way to create some type of resource so I can reuse this?
Define the header template and item template in resource dictionary and add reference of them in your code. you can reuse this templates.
<DataTemplate x:Key="HeaderTemplate1">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="60"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBlock Text="Name" Grid.Column="0" />
<TextBlock Text="Address" Grid.Column="1" />
</Grid>
</DataTemplate>
<DataTemplate x:Key="ListViewTemplate1">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="60"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBlock Text="{Binding Name}" Grid.Column="0" />
<TextBlock Text="{Binding clothing1}" Grid.Column="1" />
</Grid>
</DataTemplate>
<ListView HeaderTemplate="{StaticResource HeaderTemplate1}" ItemTemplate="{StaticResource ListViewTemplate1}"/>
for more information on Item template:
https://learn.microsoft.com/en-us/windows/uwp/controls-and-patterns/listview-item-templates
I want to create the layout as shown in the following image's first section.
But with the code attached, I can only get the layout output as show in the bottom section of the image attached.
<ListView Grid.Row="1"
ItemsSource="{Binding Items}"
Margin="0,20,0,0">
<ListView.ItemTemplate>
<DataTemplate>
<StackPanel>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="40" />
</Grid.ColumnDefinitions>
<TextBlock TextWrapping="NoWrap"
TextTrimming="WordEllipsis"
Grid.Column="0"
Text="{Binding Name}"
Style="{ThemeResource ListViewItemTextBlockStyle}" />
<Image Grid.Column="1"
Source="image.png"/>
</Grid>
</StackPanel>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
You don't need the StackPanel in the DataTemplate - the Grid you have is enough for this.
Also, in order to get the items to stretch, define a simple ListView.ItemContainerStyle in your ListView:
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
</Style>
</ListView.ItemContainerStyle>
So, full code:
<ListView Grid.Row="1"
ItemsSource="{Binding Items}"
Margin="0,20,0,0">
<ListView.ItemTemplate>
<DataTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="40" />
</Grid.ColumnDefinitions>
<TextBlock TextWrapping="NoWrap"
TextTrimming="WordEllipsis"
Grid.Column="0"
Text="{Binding Name}"
Style="{ThemeResource ListViewItemTextBlockStyle}" />
<Image Grid.Column="1"
Source="image.png"/>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
<ListView.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
</Style>
</ListView.ItemContainerStyle>
</ListView>
Try it
<ColumnDefinition Width="100" />
instead of Width="*"
I want to show two GridViewItems in each row, with equal width. how can I achieve that?
I am using following template but it is not taking equal space between items.
<DataTemplate x:Key="GridViewItemTestTemplate">
<StackPanel Orientation="Horizontal">
<Border Background="{ThemeResource ListViewItemPlaceholderBackgroundThemeBrush}" Margin="0,9.5,0,0">
<Image Height="79" Width="79"/>
</Border>
<StackPanel Grid.Column="1" Margin="14.5,0,0,0">
<TextBlock Text="{Binding Title}" Style="{ThemeResource ListViewItemTextBlockStyle}"/>
<TextBlock Text="Subtitle" Style="{ThemeResource ListViewItemSubheaderTextBlockStyle}"/>
</StackPanel>
</StackPanel>
</DataTemplate>
here is my gridview.
<GridView ItemsSource="{Binding MyData}" ItemTemplate="{StaticResource GridViewItemTestTemplate}"
IsSwipeEnabled="False" SelectionMode="Single" HorizontalContentAlignment="Stretch">
</GridView>
Replace your StackPanel with this
<Grid Grid.Column="1" Margin="14.5,0,0,0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Column="0" Text="{Binding Title}" Style="{ThemeResource ListViewItemTextBlockStyle}"/>
<TextBlock Grid.Column="1" Text="Subtitle" Style="{ThemeResource ListViewItemSubheaderTextBlockStyle}"/>
</Grid>
Grids resize themselves dynamically versus StackPanels. The ColumnDefinition Width="*" is the important part, telling the panel to set the width of each column to fill the width of the grid, and for each column to have the same width.
edit: Is this the hehavior you want? Not as pretty as dynamic resizing but the same width requirement with 2 items per row basically force all items to have the same width
<GridView Width="200">
<GridView.ItemContainerStyle>
<Style TargetType="GridViewItem">
<Setter Property="Width" Value="80" />
</Style>
</GridView.ItemContainerStyle>
...
</GridView>
I'm trying to set my layout to appear as follows:
Using the following XAML:
<Grid >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<TextBlock Name="txtSiteName" VerticalAlignment="Top" Width="auto"/>
<StackPanel Orientation="Horizontal" VerticalAlignment="Top" Grid.Column="1" HorizontalAlignment="Right">
<tabs:TabItem Name="tabSettings" TabItemText="Settings"
TabItemImage="settings.png" Margin="5" />
<tabs:TabItem Name="tabDelete" TabItemText="Delete Site"
TabItemImage="delete.png" Margin="5" />
</StackPanel>
</Grid>
However, it's appearing as:
What do I need to do to get the images to align to the right, and have the text vertically aligned on the left?
Try This
<Grid >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<TextBlock Name="txtSiteName" VerticalAlignment="Top" Width="auto"/>
<StackPanel Orientation="Horizontal" VerticalAlignment="Top" Grid.Column="2" HorizontalAlignment="Right">
<tabs:TabItem Name="tabSettings" TabItemText="Settings"
TabItemImage="settings.png" Margin="5" />
<tabs:TabItem Name="tabDelete" TabItemText="Delete Site"
TabItemImage="delete.png" Margin="5" />
</StackPanel>
</Grid>
A parent container isn't stretching to fill the available space.
You can try
<Grid HorizontalAlignment="Stretch" >
<!-- etc -->
and, if that doesn't work, move up the tree until you find the element that's not stretching.
OP Edit in support of the correct answer:
It turns out this is correct - A parent container wasn't stretching to fill the space.
The parent container was the ListBox that I was inserting the items into.
Where before I had just this:
<ListBox Name="SiteListBox" Grid.Row="2" />
I changed it to the following to force the containing ListBoxItems to stretch:
<ListBox Name="SiteListBox" Grid.Row="2">
<ListBox.ItemContainerStyle>
<Style TargetType="ListBoxItem">
<Setter Property="HorizontalContentAlignment" Value="Stretch"></Setter>
</Style>
</ListBox.ItemContainerStyle>
</ListBox>
Change the TextBlock's Vertical Alignment to Center.
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<TextBlock Name="txtSiteName" VerticalAlignment="Center"/>
<StackPanel Orientation="Horizontal" VerticalAlignment="Top" Grid.Column="1" HorizontalAlignment="Right">
<tabs:TabItem Name="tabSettings" TabItemText="Settings"
TabItemImage="settings.png" Margin="5" />
<tabs:TabItem Name="tabDelete" TabItemText="Delete Site"
TabItemImage="delete.png" Margin="5" />
</StackPanel>
</Grid>
And try switching your column definitions.