Develop Reference

How to Remove Spacing between ItemsControl Items

I have an ItemsControl with materialDesign Chips as a DataTemplate. My goal is to place the items one after the other without a lot of space in between.
There is a pic what is now looks like: https://imgur.com/hicWnGg.png
And this is my Goal: https://imgur.com/0jIEk8k.png
I tried already the ItemContainerStyle with Margin but this didnt helped me out
My Current Code
<ScrollViewer VerticalScrollBarVisibility="Disabled" HorizontalScrollBarVisibility="Auto">
<ItemsControl x:Name="myItemsControl" Height="40" Margin="0 10 0 0">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<UniformGrid Rows="1"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<materialDesign:Chip Tag="{Binding Name}" Uid="{Binding SourceName}" Content="{Binding Code}" Width="75" IsDeletable="True" DeleteClick="Chip_DeleteClick"/>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</ScrollViewer>

Change your ItemsPanelTemplate to StackPanel instead of UniformGrid
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>

ItemsControl and GroupStyle issues

The following code generates a UserControl for every item in a collection. The data is displayed correctly, but for some reasons which I can't understand, all the UserControls have the same size.
As you can see, Group2 contains multiple StackPanels. All these StackPanels have the very same dimensions and is not resizing according to the content.
Any idea why? Is it because of the StackPanel defined in the ItemsPanelTemplate?
<CollectionViewSource x:Key="test" Source="{Binding}">
<CollectionViewSource.GroupDescriptions>
<PropertyGroupDescription PropertyName="Column"/>
</CollectionViewSource.GroupDescriptions>
</CollectionViewSource>
<ItemsControl ItemsSource="{Binding Source={StaticResource test}}" HorizontalAlignment="Center">
<ItemsControl.ItemTemplate>
<DataTemplate>
<controls:Template/>
</DataTemplate>
</ItemsControl.ItemTemplate>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Vertical"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.GroupStyle>
<GroupStyle>
<GroupStyle.Panel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</GroupStyle.Panel>
</GroupStyle>
</ItemsControl.GroupStyle>
</ItemsControl>

GridView Groups should not start in a new column

I've created a new GridView that groups the item by key.
<GridView
Style="{StaticResource DefaultGridViewStyle}"
ItemsSource="{Binding Source={StaticResource TimeGroupCollectionViewSource}}"
ItemTemplate="{StaticResource TransactionDataTemplate}"
MaxHeight="{Binding MaximumContentHeight}">
<GridView.ItemsPanel>
<ItemsPanelTemplate>
<ItemsWrapGrid Orientation="Vertical" GroupHeaderPlacement="Left"/>
</ItemsPanelTemplate>
</GridView.ItemsPanel>
<GridView.GroupStyle>
<GroupStyle>
<GroupStyle.HeaderTemplate>
<DataTemplate>
<Border Background="{ThemeResource B2}" Height="40" VerticalAlignment="Top" Tapped="Border_Tapped">
<TextBlock Style="{StaticResource GroupTextBlockStyle}" Height="40" VerticalAlignment="Top" Text="{Binding Key}" />
</Border>
</DataTemplate>
</GroupStyle.HeaderTemplate>
<GroupStyle.Panel>
<ItemsPanelTemplate>
<VariableSizedWrapGrid Orientation="Vertical"/>
</ItemsPanelTemplate>
</GroupStyle.Panel>
</GroupStyle>
</GridView.GroupStyle>
</GridView>
<Page.Resources>
<CollectionViewSource x:Name="TimeGroupCollectionViewSource" IsSourceGrouped="True" Source="{Binding TransactionList}" ItemsPath="Data"/>
</Page.Resources>
That works fine. By default every group starts in a new column.
What I want is something like this:
How can I achieve that? Do I miss some properties?

If you want your grid to scroll vertically - you should try changing its ScrollViewer.HorizontalScrollMode and ScrollViewer.VerticalScrollMode or use a ListView with custom ItemsPanel.

Gridview with multiple elements in each row

There is an app which has the listbox with multiple rows and there is some info in each of this rows. How to implement that? Try to use gridview in listbox?

Simplest way to replicate this
Create a new Store App with Grid App Template
Replace the GridView code with this
<ListView.ItemsPanel>
<ItemsPanelTemplate>
<VirtualizingStackPanel Orientation="Vertical"/>
</ItemsPanelTemplate>
</ListView.ItemsPanel>
<ListView.GroupStyle>
<GroupStyle>
<GroupStyle.HeaderTemplate>
<DataTemplate>
<Grid Margin="1,0,0,6">
<Button
AutomationProperties.Name="Group Title"
Click="Header_Click"
Style="{StaticResource TextPrimaryButtonStyle}" >
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding Title}" Margin="3,-7,10,10" Style="{StaticResource GroupHeaderTextStyle}" />
<TextBlock Text="{StaticResource ChevronGlyph}" FontFamily="Segoe UI Symbol" Margin="0,-7,0,10" Style="{StaticResource GroupHeaderTextStyle}"/>
</StackPanel>
</Button>
</Grid>
</DataTemplate>
</GroupStyle.HeaderTemplate>
<GroupStyle.Panel>
<ItemsPanelTemplate>
<VariableSizedWrapGrid Orientation="Horizontal" Margin="0,0,80,0"/>
</ItemsPanelTemplate>
</GroupStyle.Panel>
</GroupStyle>
</ListView.GroupStyle>
</ListView>

It's a grouped GridView. You should set ItemsPanel of GridView as VirtualizingStackPanel with vertical orientation.
Check out Grouping GridView on Windows 8

How do I dynamically size a GridView Item?

I have a Grid View that is used to display "tags" which is a list of strings that are dynamic in size. Using the following code:
<GridView ItemsSource="{Binding Tags}"
ItemTemplate="{StaticResource TagTemplate}"
VerticalAlignment="Bottom"
Grid.RowSpan="2"
SelectionMode="None"
/>
I use the following Template for the items:
<DataTemplate x:Name="TagTemplate">
<Border BorderBrush="Gray" BorderThickness="1" Opacity="75">
<TextBlock Text="{Binding}"/>
</Border>
</DataTemplate>
When added to the Grid, the size of each of the items are the same size as the first:
How do I dynamically size the items within the GridView?

So something like;
<ScrollViewer>
<ItemsControl ItemsSource="{Binding Tags}">
<!-- ItemsPanelTemplate -->
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"/>
<!-- Or use WrapPanel depending on its display -->
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<!-- ItemContainerStyle -->
<ItemsControl.ItemTemplate>
<DataTemplate>
<Border BorderBrush="Gray" BorderThickness="1" Opacity="75" Padding="3" Margin="3,0">
<TextBlock Text="{Binding}"/>
</Border>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</ScrollViewer>