My Listview:
<ListView ItemTemplate="{StaticResource GridViewItemTemplate}" Name="gridView_movies">
<ListView.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal" HorizontalAlignment="Left" VerticalAlignment="Top"/>
</ItemsPanelTemplate>
</ListView.ItemsPanel>
</ListView>
Datatemplate of the list:
<DataTemplate x:Key="GridViewItemTemplate">
<StackPanel Orientation="Vertical" >
<Image Width="250" Height="290" Source="{Binding Image}"/>
<TextBlock Text="{Binding Title}" HorizontalAlignment="Center" VerticalAlignment="Top" FontSize="20"/>
</StackPanel>
</DataTemplate>
When i load this, all items are showed in one row, my question is, How can i show only 3 items per row instead of all items in one row.
Thanks for the attention.
Use
<UniformGrid Columns="3" .../>
instead of <StackPanel Orientation="Horizontal" .../> in ItemsPanelTemplate
Use a WrapPanel instead of a StackPanel. It doesn't allow you to directly specify the number of items per row, but you can set the width of each item, which is almost as good. When there is no space left on a row, it continues on the next row.
EDIT: you could also use a UniformGrid, as suggested by Bonial. The drawback is that if you can resize your UI and make the ListView wider, the number of items per row won't change, and they will be stretched to fill the space. Depending on what you want, it might be OK, but I think WrapPanel is a better option in most cases.
You want to replace that ListView.ItemsPanel StackPanel with a WrapPanel. It will get the job done. Once the WrapPanel has a width, it will then line wrap the items.
Related
I have a list view that will contain notes that I input. I am having trouble figuring out how to have the list view item look how I want it to.
Below is how it should look:
And this is what it currently looks like:
How do I write the list view item in XAML so that the Date and time appear to the very top-right of each list view item, with the text of the note to the left?
<ListView x:Name="list" ItemsSource="{Binding Note}" BorderBrush="{x:Null}" BorderThickness="0">
<DataTemplate>
<ListViewItem>
<StackPanel Orientation="Horizontal">
</StackPanel>
</ListViewItem>
</DataTemplate>
</ListView>
Any help at all is much appreciated!
You are missing a number of elements required in order to get your screen to look the way you want.
You need to define the ItemTemplate for the ListView. You're on the right track here, it is a DataTemplate declared in XAML, you just have to apply it to the ListView.ItemTemplate property.
You need to set the HorizontalContentAlignment of the ListView to Stretch (the default is Left, which means your items will not fill the entire content area).
You need to use a DockPanel (or other similar panel) inside your DataTemplate to place your date content on the right, and the remainder of your content on the left.
You need to disable Horizontal Scrolling (ScrollViewer.HorizontalScrollBarVisbility) on the ListView in order to make your content wrap (otherwise it will just happily draw it all on one line).
I've included a sample ListView that should get you started.
<ListView
ItemsSource="{Binding Items}"
HorizontalContentAlignment="Stretch"
ScrollViewer.HorizontalScrollBarVisibility="Disabled">
<ListView.ItemTemplate>
<DataTemplate>
<DockPanel>
<TextBlock
TextWrapping="Wrap"
Text="{Binding Date}"
Background="Magenta"
DockPanel.Dock="Right" />
<TextBlock Text="{Binding Content}" Background="Lime" />
</DockPanel>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
How do we get the ListView to behave properly? I am trying to scroll vertically inside my ListView, and I was eventually able to get something to scroll vertically, but the ListView keeps expanding in height! and setting MaxHeight doesn't do anything.
<StackPanel x:Name="ActivityLog" Margin="0, 201, 0, 0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
<ScrollViewer ScrollViewer.VerticalScrollBarVisibility="Visible">
<ListView x:Name="ActivityList" ItemsSource="{Binding Activities}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" BorderBrush="{x:Null}" HorizontalContentAlignment="Center" FontSize="14">
<ListView.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding Message}" Background="{x:Null}" HorizontalAlignment="Stretch" Padding="5" TextAlignment="Center" ScrollViewer.VerticalScrollBarVisibility="Auto" ScrollViewer.CanContentScroll="True" />
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</ScrollViewer>
</StackPanel>
I am at a loss. Please help. How do I get the listview to just scroll vertically only, and never change in height, and never display the horizontal scrollbars?
Remove the StackPanel. That prevents the ListView (or any other children) to have a delimited size. That's why you're not getting any scrollbars, because the ListView has an infinite height, as layout-ed by the StackPanel.
Besides, having a StackPanel with only 1 child makes no sense. It's supposed to "stack" its children.
Edit: Also remove the ScrollViewer, as the ListView already has a ScrollViewer inside of it as per the default Template. Unless of course you had changed the Default ControlTemplate for that.
I have the following code in a Metro app. The listview binds up to a list of objects. My problem is that the WrapGrid assigns them equal width. But some Titles are longer then others so width should be set width to Auto. But this dont work.. anyone have any idea?
<ListView>
<ListView.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal" >
<TextBlock Text="{Binding Title}"/>
</StackPanel>
</DataTemplate>
</ListView.ItemTemplate>
<ListView.ItemsPanel>
<ItemsPanelTemplate>
<WrapGrid Orientation="Horizontal" />
</ItemsPanelTemplate>
</ListView.ItemsPanel>
</ListView>
This works for me:
<ListView.ItemsPanel>
<ItemsPanelTemplate>
<WrapGrid ItemWidth="250" ItemHeight="80" MaximumRowsOrColumns="7" VerticalAlignment="Center" HorizontalAlignment="Center" />
</ItemsPanelTemplate>
</ListView.ItemsPanel>
The key point here is MaximumRowsOrColumns property. Have fun :)
I think it's not the WrapGrid, but the ListView itself through the ListViewItem/ItemContainerStyle that makes them same size. I don't think there really is a workaround for that though. You could use your own ItemsControl and custom panel or calculate the desired size of each item and based on that - put the items in something like a VariableSizedWrapGrid, setting RowSpan/ColumnSpan appropriately to match that desired size. Other than that - you can either make all items wide enough to fit everything or simply clip the content and display the full strings in the detailed view once the user clicks an item.
I´m filling a listbox with a specific data, the code works fine, but I need to add a scrollviewer to the listbox because there are many elements inside, I tried to use a ScrolViewer and put inside the listbox, but doesn't work, here is the code
<StackPanel x:Name="Sites" Grid.Row="1" Orientation="Vertical">
<ListBox x:Name="ListSites" >
<ListBox.ItemTemplate>
<DataTemplate>
<Button Width="460" Height="120" Click="click" Name="btn">
<Button.Content>
<StackPanel Orientation="Vertical" Height="100" Width="460">
<TextBlock Width="460" Name="txtname" FontSize="22" Text="{Binding name}" Height="40" Foreground="CadetBlue" />
<TextBlock Width="460" Name="txtUrl" FontSize="22" Text="{Binding Url}" Height="60"/>
</StackPanel>
</Button.Content>
</Button>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</StackPanel>
I fixed it, simply adding the Height property in the ListBox control
If the ListBox is not given infinite space for height then it should automatically scroll when items overflow its boundaries. For instance, if the second Grid row outside your stackpanel has explicit or 'star' height set, the scrollbar in the listbox will show up automatically.
See also: Silverlight: Difficulty with ScrollViewer
You shouldn't need to add a ScrollViewer to your ListBox. It will start scrolling when it runs out of room.
However, because you've put the ListBox inside a StackPanel it won't ever think it's run out of room because the StackPanel grows infinitely in the direction of it's orientation to accommodate its contents.
You'll need to use a different container for your ListBox.
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Vertical"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
I have a list box that is scrolls horizontally, it has a text block within, am binding data to the text block dynamically , this data is coming from a server,i have folders coming from the server and am displaying only the names of these folders in this list box.suppose there are 10 folders on the start of the App i want only first three names to be visible on the list(the effect should be something like the Panorama page), then when i scroll next three names should be visible and which ever is closest to the middle that folder should get expanded... and which ever name is highlighted for that name the BG of the list box should change to Green.
Please help me out am very new to WP7
the code am using is
<ListBox BorderBrush="White" Background="LightGray" ItemsSource="{Binding DisplayItem}" ScrollViewer.HorizontalScrollBarVisibility="Auto" ScrollViewer.VerticalScrollBarVisibility="Disabled" Margin="36,122,34,500" Grid.Row="2">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal">
</StackPanel>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
<ListBox.ItemTemplate>
<DataTemplate>
<TextBlock Height="75" Width="250" FontSize="28" Foreground="Black" Text="{Binding WidgetName}" HorizontalAlignment="Center">
</TextBlock>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
In order to achieve the panorama view, listbox is not your best choice. Code Samples has an example called Panorama/Pivot Sample.
Check it, i think this is what you're looking for, it describes the method used in addition to sample codes.