Stop ScrollView scrolling extending beyond content bounds - xaml

I've got a grouped GridView with some explicitly sized databound controls inside it.
The GridView has a VariableSizedWrapGrid as the ItemPanelTemplate type.
As you can see the ScrollView scrolls well beyond the content.
Any help appreciated, XAML below.
<GridView Grid.Row="2" ItemsSource="{Binding Source={StaticResource contentSetListViewSource}}" ItemTemplate="{StaticResource DashboardContentSetItem}" SelectedIndex="-1" SelectionMode="Multiple" Padding="0,0,0,15" VerticalAlignment="Center" Margin="20 0" HorizontalAlignment="Left">
<GridView.GroupStyle>
<GroupStyle>
<GroupStyle.HeaderTemplate>
<DataTemplate>
<TextBlock Text="{Binding Key}" Margin="0 10" Style="{StaticResource GroupHeaderTextStyle}"/>
</DataTemplate>
</GroupStyle.HeaderTemplate>
<GroupStyle.Panel>
<ItemsPanelTemplate>
<VariableSizedWrapGrid/>
</ItemsPanelTemplate>
</GroupStyle.Panel>
</GroupStyle>
</GridView.GroupStyle>
</GridView>

GridView by default uses an ItemsPanelTemplate consisting of a Border containing a WrapGrid.
So I was targeting the wrong panel, this is the fix I used:
<GridView.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal" />
</ItemsPanelTemplate>
</GridView.ItemsPanel>
The reason being that a WrapGrid isn't variable sized it's fixed to the size of the largest collection, the size of the second grouping (1 item) was the same as the first (5 items) which is why it extended beyond the content.

Related

UWP XAML Binding to another object is not working

I'm trying to bind TextBlock Width to another object's Width.
It is not working, TextBlock Width stays as the Text length, and not as "BitsListView" Width.
An interesting thing is, when I edit the "Width" of TextBlock while debugging, the binding is working OK.
<StackPanel >
<StackPanel Orientation="Horizontal" >
<TextBlock Text="{x:Bind name}" Width="{Binding ElementName=BitsListView, Path=ActualWidth }"/>
</StackPanel>
<ListBox x:Name="BitsListView" ItemsSource="{x:Bind BitsList, Mode=TwoWay}">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
</StackPanel>
Any ideas?
UWP XAML Binding to another object is not working
The problem is that when set TextBlock root panel Orientation property as Horizontal, the width of content will be fixed. So, if you want to make Binding work, please remove Orientation property like the following.
<StackPanel>
<Border BorderBrush="Red" BorderThickness="2" HorizontalAlignment="Stretch" Margin="0,0,0,0">
<TextBlock Name="TestBlock" Text="Test input some" Width="{Binding ElementName=BitsListView, Path=ActualWidth}"/>
</Border>
</StackPanel>

Windows Phone Allignment of a repeating image control

I am developing an application and I have an image control that displays however many images are stored in the database. So I have got the images to display. However the images are displaying below the previous one and not next to the previous one.
(ignore the names next to the picture I have taken them out now).
So my question is what method can I use to get them aligned, I'm not sure what I need to search for in Google, everything I can think of doesnt bring back anything close to what I am looking for. The XAML code is below:
<Grid x:Name="LayoutRoot" Background="Transparent">
<!--Pivot Control-->
<phone:Pivot Title="Share This!">
<!--Pivot item one-->
<phone:PivotItem Header="All Photos">
<Grid>
<ListBox Height="559" HorizontalAlignment="Left" Margin="6,20,0,0" x:Name="lst_viewPhotos" VerticalAlignment="Top" Width="444" FontSize="30" ItemsSource="{Binding}" SelectionChanged="lst_viewPhotos_SelectionChanged">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal" Margin="0,10,0,0" >
<Image Source="{Binding}" HorizontalAlignment="Left" Height="100" Width="100"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
</phone:PivotItem>
</phone:Pivot>
</Grid>
You can get them displaying alongside each other by setting the ItemsPanel
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<VirtualizingStackPanel Orientation="Horizontal" />
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
However I would recommend a GridView for this so that you can use a Wrapgrid which will reach the end of a Row or Column and wrap to a new Row or Column.
Something like this
<GridView>
<GridView.ItemsPanel>
<ItemsPanelTemplate>
<WrapGrid Orientation="Horizontal" />
</ItemsPanelTemplate>
</GridView.ItemsPanel>
</GridView>

How to make vertical scrolling list view with groups

I need to create a vertical scrolling list view with grouping enabled as shown below:
This is what I currently have:
<common:VariableSizeListViewWithSelection ItemsSource="{Binding Source={StaticResource cvs}}"
ScrollViewer.VerticalScrollBarVisibility="Auto"
IsItemClickEnabled="True"
ItemTemplateSelector="{StaticResource summaryViewTemplateSelector}" >
<GroupStyle>
<GroupStyle.HeaderTemplate>
<DataTemplate>
<Grid Margin="0,0,0,2">
<TextBlock Grid.Column="0" Text="{Binding Title}" Margin="0,-11,10,10" Style="{StaticResource SubheaderTextBlockStyle}" TextWrapping="NoWrap" FontWeight="SemiBold" Foreground="#333333" />
</Grid>
</DataTemplate>
</GroupStyle.HeaderTemplate>
</GroupStyle>
<common:VariableSizeListViewWithSelection.GroupStyle>
<GroupStyle HidesIfEmpty="True">
<GroupStyle.HeaderTemplate>
<DataTemplate>
<Grid Background="LightGray" Margin="0">
<TextBlock Text='{Binding Title}' Foreground="Black" Margin="5" Style="{StaticResource HeaderTextBlockStyle}"/>
</Grid>
</DataTemplate>
</GroupStyle.HeaderTemplate>
<GroupStyle.Panel>
<ItemsPanelTemplate>
<WrapGrid Orientation="Horizontal" MaximumRowsOrColumns="4" Width="300" />
</ItemsPanelTemplate>
</GroupStyle.Panel>
</GroupStyle>
</common:VariableSizeListViewWithSelection.GroupStyle>
</common:VariableSizeListViewWithSelection>
But this is not working as expected and it creates a listview with correct grouping but with just one column like this:
Can you please point me as to what am I doing wrong?
We took it offline for a bit and it seems like changing the ItemsPanel of the ListView to a StackPanel make this work. I have a feeling the default ItemsStackPanel should still support grouping, but perhaps not with a custom group layout panel. Maybe there is a way to reconfigure a GridView to scroll vertically and this could work too.

Wrapping items horizontally in a VariableSizedWrapGrid

I have a GridView containing VariableSizedWrapGrid, like this...
<local:MyGridview
Padding="116,0,0,0"
x:Name="itemGridView"
AutomationProperties.AutomationId="ItemGridView"
AutomationProperties.Name="Grouped Items"
Grid.Column="1"
Grid.Row="1"
SelectionMode="None"
ItemTemplateSelector="{StaticResource templateSelector}"
ItemsSource="{Binding Source={StaticResource groupedItemsViewSource}}"
IsItemClickEnabled="True"
ItemClick="itemGridView_ItemClick">
<GridView.ItemsPanel>
<ItemsPanelTemplate>
<VirtualizingStackPanel Orientation="Horizontal" Margin="0"/>
</ItemsPanelTemplate>
</GridView.ItemsPanel>
<GridView.GroupStyle>
<GroupStyle>
<GroupStyle.HeaderTemplate>
<DataTemplate>
<Grid>
<TextBlock Text="{Binding Key}" Margin="3,-7,10,10" Style="{StaticResource GroupHeaderTextStyle}" />
</Grid>
</DataTemplate>
</GroupStyle.HeaderTemplate>
<GroupStyle.Panel>
<ItemsPanelTemplate>
<VariableSizedWrapGrid Orientation="Vertical" ItemWidth="1" ItemHeight="1" Margin="0,3,40,0" />
</ItemsPanelTemplate>
</GroupStyle.Panel>
</GroupStyle>
</GridView.GroupStyle>
</local:MyGridview>
Which displays items like this...
I want to make it stack items horizontally rather than vertically so that the orange tile sits next to the blue one rather than below it
I've tried changing the Orientation of the VariableSizedWrapGrid to Horizontal but this happens....
Am I doing something really silly?
Why did you set ItemWidth and ItemHeight to 1? Do you set proper ColumnSpan and RowSpan values from code? I suggest you to set ItemWidth and ItemHeight to something more big, maybe to the size of the smallest item. VariableSizedWrapGrid layout algorithm is not perfect, in my samples sometimes it places small items horizontally as you want and sometimes - not (I don't set VariableSizedWrapGrid Orientation at all).

Resize Grid Items WinRt

Can you resize grid items dynamically?
I have a gridview that has a textbox in it. They textbox has a number of bound values that can cause it to grow in size but it does not do so after the app is running.
<Slider x:Name="FontSizeSlider" Minimum="10" Maximum="120" />
<GridView ItemsSource="{Binding MyList}" >
<GridView.ItemTemplate>
<DataTemplate>
<TextBlock
Height="{Binding ElementName=FontSizeSlider, Path=Value}"
Width="{Binding ElementName=FontSizeSlider, Path=Value}"
Text="{Binding}"
FontSize="{Binding ElementName=FontSizeSlider, Path=Value}"/>
</DataTemplate>
</GridView.ItemTemplate>
</GridView>
I realise that the items would have to shuffle around too so that then can fit in the columns. I don't think this is supported in gridview is it?
Is this possible?
Fixed it by adding:
<GridView.ItemsPanel>
<ItemsPanelTemplate>
<VariableSizedWrapGrid />
</ItemsPanelTemplate>
</GridView.ItemsPanel>