Wrap Panel with scroll viewer - wpf

I am using WrapPanel for dynamic content display line by line order like windows explorer windows, its working but when the horizontal and vertical ScrollBar enabled the WrapPanel display the contents are single line. Here we have contents less than 4 it shows perfect otherwise display single line.
Here is my xaml code
<ScrollViewer VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Disabled" Margin="0,10">
<ItemsControl ItemsSource="{Binding Designs}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<TextBlock HorizontalAlignment="Left" Margin="200,11,0,0" TextWrapping="Wrap" Text="{Binding DsnName}" VerticalAlignment="Top" FontSize="16" FontFamily="Segoe UI Semibold" Foreground="#FF878787"/>
<Image Source="{Binding Image,FallbackValue={StaticResource Lost},TargetNullValue={StaticResource Lost},Mode=TwoWay}" Stretch="Fill" RenderOptions.BitmapScalingMode="HighQuality" HorizontalAlignment="Left" Margin="10,10,0,10" Width="174"/>
<CheckBox HorizontalAlignment="Right" Margin="0,14,12,0" VerticalAlignment="Top" Width="16"/>
</Grid>
</DataTemplate>
</ItemsControl.ItemTemplate>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
</ScrollViewer>
How can fix this issue

Set height of WrapPanel or disable scrolling

Related

StackPanels going side by side

I have this small stackpanel that gathers information from a class I have. I want the stack panels to go side by side instead of just stacking up on top of each other. This is the code I have
<SplitView.Content>
<Grid>
<ListView x:Name ="View">
<ListView.ItemTemplate>
<DataTemplate>
<Grid>
<StackPanel>
<TextBlock Text="{Binding title}"></TextBlock>
<TextBlock Text="{Binding location}"></TextBlock>
<TextBlock Text="{Binding date}"></TextBlock>
<TextBlock Text="{Binding desc}"></TextBlock>
<Button HorizontalAlignment="Right" FontFamily="Segoe MDL2 Assets" Content=""></Button>
</StackPanel>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</Grid>
</SplitView.Content>
I don't want them to go infinitly to the side though, just like 2 next to each other and then another 2 bellow, if that is possible
You can set ListView.ItemsPanel to a StackPanel with Horizontal Orientation.
<ListView x:Name ="View">
<ListView.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal"></StackPanel>
</ItemsPanelTemplate>
</ListView.ItemsPanel>

Expanding instead of scrolling issue on Windows Phone 8.1

I'm trying to achieve the following effect: a scrollable (vertically) list of items; each item should be scrollable horizontally if there is such need. I tried the following code:
<ScrollViewer x:Name="historyViewer"
VerticalScrollMode="Enabled" VerticalScrollBarVisibility="Hidden"
HorizontalScrollMode="Disabled" HorizontalScrollBarVisibility="Hidden">
<ItemsControl ItemsSource="{Binding History}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Vertical" HorizontalAlignment="Stretch">
<ScrollViewer VerticalScrollMode="Disabled" VerticalScrollBarVisibility="Hidden"
HorizontalScrollMode="Enabled" HorizontalScrollBarVisibility="Hidden">
<TextBlock Foreground="{ThemeResource PhoneMidBrush}" FontSize="{ThemeResource TextStyleExtraLargeFontSize}" HorizontalAlignment="Left" Text="{Binding Expression}" />
</ScrollViewer>
<ScrollViewer x:Name="resultScroll" VerticalScrollMode="Disabled" VerticalScrollBarVisibility="Hidden"
HorizontalScrollMode="Enabled" HorizontalScrollBarVisibility="Hidden">
<TextBlock FontSize="{ThemeResource TextStyleExtraLargePlusFontSize}" HorizontalAlignment="Right" Text="{Binding Result}" />
</ScrollViewer>
</StackPanel>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</ScrollViewer>
The problem is, that if list items are too wide, they extend width of the main scrollviewer instead of becoming scrollable - even though its horizontal alignment is set to stretch.
How can I fix that?

Horizontal stackpanel to wrap DataBinded ItemsControl

I have an ItemsControl for which the ItemsSource is Binded. i coded it as per the below so that it would add the UserControl (showing the different items) to a StackPanel with a horizontal orientation that then contains a wrappanel to wrap the items inside but it is not working. All of the items are showing but they are all on one line and do not wrap to a new line when needed.
How can this code be fixed to include wrapping?
<ScrollViewer HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Auto"
Grid.Column="0" Grid.Row="1">
<ItemsControl x:Name="tStack"
ScrollViewer.HorizontalScrollBarVisibility="Auto"
ScrollViewer.VerticalScrollBarVisibility="Auto" Grid.Row="1"
ItemsSource="{Binding Items.View}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel x:Name="stckPnl" Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<StackPanel>
<WrapPanel>
<Viewbox HorizontalAlignment="Left" Height="400">
<Controls1:MyItemsUserControl Padding="5"/>
</Viewbox>
</WrapPanel>
</StackPanel>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</ScrollViewer>
I have solved this issue by setting Width for WrapPanel. In below snippet i have binded WrapPanel width to its Parent Grid control named MainGrid and Path to its ActualWidth. Please see below snippet will helps you sometimes to solve your issue
<ItemsControl Name="ThemesItemControl"
Grid.Column="1"
Grid.Row="1"
ItemsSource="{Binding InstalledCollection}"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
BorderThickness="0.5">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel Orientation="Horizontal"
VerticalAlignment="Top"
Width="{Binding ElementName=MainGrid, Path=ActualWidth}"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<StackPanel>
<Button Width="210"
Height="260"
Margin="20"
Tag="{Binding ID}"
Command="{Binding DataContext.ThemeSelectCommand,RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type Window}}}"
CommandParameter="{Binding RelativeSource={RelativeSource Self}}">
<StackPanel>
<Image Source="{Binding TileImage}"/>
</StackPanel>
</Button>
<TextBlock Text="{Binding Title}"
FontWeight="ExtraBold"
HorizontalAlignment="Center"
FontSize="15"
FontFamily="Segoe Print"
Foreground="Red"/>
<TextBlock Text="{Binding Description}"
HorizontalAlignment="Center"
FontSize="13"
FontFamily="Segoe Print"
Foreground="Red"/>
</StackPanel>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>

Showing a collection of items inside of a ItemsControl horizontally

Here is the XAML markup:
<ScrollViewer Grid.Column="1" Grid.Row="2" HorizontalScrollBarVisibility="Disabled" Width="990">
<StackPanel Margin="50 0 0 40">
<ItemsControl x:Name="streamList" ItemsSource="{Binding StreamInformations}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<StackPanel Margin="10" Orientation="Horizontal" >
<StackPanel Orientation="Horizontal">
<Image Source="{Binding ImageUrl}" Height="60" />
<StackPanel Margin="10 0 0 0" VerticalAlignment="Center">
<TextBlock Foreground="Black" Text="{Binding ChannelName}" FontSize="12" />
<TextBlock Foreground="#999" Text="{Binding PlayerName}" FontSize="10" />
<TextBlock Foreground="#999" Text="{Binding ViewCount}" FontSize="10" />
</StackPanel>
</StackPanel>
</StackPanel>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</StackPanel>
</ScrollViewer>
And this is how it looks:
I'd like these items to appear horizontally and flow down when it reaches the edge of the StackPanel.
It seems that currently, each item in my DataContext collection is creating it's own StackPanel, so this isn't what I want.
Any suggestions?
If you change the ItemsPanel template to either a WrapPanel or horizontal StackPanel, you can achieve the effect you are after...
<ItemsControl>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel Orientation="Horizontal"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<!--other stuff here-->
</ItemsControl.ItemTemplate>
</ItemsControl>
In this snippet, the ItemsPanel is set to a WrapPanel oriented horizontally. The ItemTemplate would include the binding and styling you already have...

Silverlight ItemsControl vertical scrollbar, using a wrappanel as ControlTemplate

I have a collection of elements, each one with a name and a subcollection of image blobs.
I want to display an Accordion, with each item representing each of the MainElements. inside each element, I display the images in the subcollecion of said MainElement.
The Accordion gets resized by the user, so I use a wrappanel for presenting the images. When the accordion is wide enough, the images reorder themselves fitting as many as posible in each row.
the problem comes when the wrappanel only displays one image per row (because there's no space enough for more), the image list continues, but I can't see all the images, because they don't fit inside the control's height.
I need a vertical scrollbar to be displayed inside the AccordionItem so I can scroll down the image list.
So, here's my code:
<layoutToolkit:Accordion Width="Auto" Height="Auto" ItemsSource="{Binding MainElementCollection}">
<layoutToolkit:Accordion.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding MainElementName}" />
</DataTemplate>
</layoutToolkit:Accordion.ItemTemplate>
<layoutToolkit:Accordion.ContentTemplate>
<DataTemplate>
<ItemsControl ItemsSource="{Binding SubElementCollection}" ScrollViewer.VerticalScrollBarVisibility="Auto" >
<ItemsControl.Template>
<ControlTemplate>
<controlsToolkit:WrapPanel />
</ControlTemplate>
</ItemsControl.Template>
<ItemsControl.ItemTemplate>
<DataTemplate>
<Grid>
<Image Margin="2" Width="150" Source="{Binding PreviewImage, Converter={StaticResource ImageConverter}}" />
</Grid>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</DataTemplate>
</layoutToolkit:Accordion.ContentTemplate>
</layoutToolkit:Accordion>
http://www.silverlightshow.net/tips/How-to-add-scrollbars-to-ItemsControl.aspx suggests that I should surround my wrappanel with a scrollviewer, like this
<ItemsControl.Template>
<ControlTemplate>
<scrollviewer>
<controlsToolkit:WrapPanel />
</scrollviewer>
</ControlTemplate>
</ItemsControl.Template>
But then my wrappanel gets really small and I can only see a small vertical scrollbar
Any ideas?
Thanks a lot.
Edit: I figured thatthe wrappanel loses its width when used in the controltemplate
It should be used as follows:
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<controlsToolkit:WrapPanel ScrollViewer.VerticalScrollBarVisibility="Visible" />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
Anyway, I tried adding the ScrollViewer.VerticalScrollBarVisibility="Visible" line but I'm stuck again.
Edited again:
Now my wrappanel looks like this:
<ItemsControl ItemsSource="{Binding StageVideos}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<controlsToolkit:WrapPanel />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<Image Margin="2" Width="150" Cursor="Hand" MouseLeftButtonDown="videoPreview_MouseLeftButtonDown" Tag="{Binding}" Source="{Binding PreviewImage, Converter={StaticResource ImageConverter}}" />
</DataTemplate>
</ItemsControl.ItemTemplate>
<ItemsControl.Template>
<ControlTemplate>
<ScrollViewer VerticalScrollBarVisibility="Visible">
<ItemsPresenter />
</ScrollViewer>
</ControlTemplate>
</ItemsControl.Template>
</ItemsControl>
I'm using a wrappanel as the items panel, and I'm using the ControlTemplate to surround the presenter with a scrollviewer. Still, no luck :/
It's working perfectly. i had two different Accordions on the same page, and I was checking my code changes in the one whose code I wasn't touching.
Sometimes you need to pause, go for a walk and then look at the whole screen.
The right code is the last one:
<ItemsControl ItemsSource="{Binding StageVideos}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<controlsToolkit:WrapPanel />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<Image Margin="2" Width="150" Cursor="Hand" MouseLeftButtonDown="videoPreview_MouseLeftButtonDown" Tag="{Binding}" Source="{Binding PreviewImage, Converter={StaticResource ImageConverter}}" />
</DataTemplate>
</ItemsControl.ItemTemplate>
<ItemsControl.Template>
<ControlTemplate>
<ScrollViewer VerticalScrollBarVisibility="Visible">
<ItemsPresenter />
</ScrollViewer>
</ControlTemplate>
</ItemsControl.Template>
</ItemsControl>

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