Then I tap on textbox happen to scroll through on-screen keyboard did not close this textbox. If this TextBox move above, how i make auto-scroll page by top too? I tryed use ScrollViewer, and use his methods InvalidateScrollInfo() and Scroll.UpdateLayout() but page not moving. This xaml from my page:
<ScrollViewer x:Name="Scroll">
<Grid x:Name="LayoutRoot" Background="Transparent">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28">
<TextBlock Text="MY APPLICATION" Style="{StaticResource PhoneTextNormalStyle}" Margin="12,0"/>
<TextBlock Text="page name" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/>
</StackPanel>
<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
<Canvas>
<TextBox x:Name="SearchTB" Width="200" Height="72" TextChanged="TextBox_OnTextChanged" Canvas.Left="112" Canvas.Top="297"/>
</Canvas>
</Grid>
</Grid>
</ScrollViewer>
You should call ScrollToVerticalOffset on the parent ScrollViewer, with a parameter of 0 to scroll to the top.
Related
ListView is placed inside UserControl which is set in parent XAML to asterix "*" height.
I want to use ListView with possibility to scroll items, when there are items that exceed ListView. It should work for different size of window.
It works fine when I set Grid's RowDefinitions with fixed integer, but when I try to use asterix "*" ScrollViewer disables.
I also tried to bind and update RowDefinition's height via some code behind in overriden MeasureOverride method, but it didn't work as expected.
Here is code inside my UserControl:
<Grid x:Name="ContentArea"
Background="{StaticResource MixerBackground}">
<Grid.RowDefinitions>
<RowDefinition Height="{x:Bind ListViewHeight}" />
</Grid.RowDefinitions>
<ListView
ItemsSource="{x:Bind ViewModel.Source,Mode=TwoWay}"
CanDragItems="True"
CanReorderItems="True"
AllowDrop="True"
SelectionMode="Single"
ScrollViewer.VerticalScrollBarVisibility="Visible">
<ListView.ItemTemplate>
<DataTemplate x:DataType="models:Track">
<Grid
Background="LightGray"
HorizontalAlignment="Left"
VerticalAlignment="Stretch"
BorderBrush="Black">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="100"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="100"/>
</Grid.RowDefinitions>
<TextBlock
Text="{x:Bind Id}"
VerticalAlignment="Center"
HorizontalAlignment="Center"
FontSize="24"
Margin="20,5,20,5"/>
<Grid
Background="Black"
Width="500"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
Grid.Column="1">
</Grid>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
I expect to get the ScrollViewer working correctly, but ListView stay at the old size or scroll bar is disabled - depending on Height value.
Is there any way to achieve dynamically resizing ListView with scroll?
Edit
Here is parent Page XAML code which is loaded into Frame via Light MVVM framework:
<Grid
x:Name="ContentArea">
<Grid
Background="{ThemeResource SystemControlPageBackgroundChromeLowBrush}">
<Grid.RowDefinitions>
<RowDefinition Height="100" />
<RowDefinition Height="*" />
<RowDefinition Height="300" />
</Grid.RowDefinitions>
<maineditor:MainEditorMenuControl x:Name="ProjectMenu" />
<maineditor:MainEditorWorkspaceControl x:Name="Workspace" Grid.Row="1"/>
<maineditor:MainEditorMixerControl x:Name="Mixer" Grid.Row="2" />
</Grid>
</Grid>
Edit 2
I think the problem may be connected with MVVM template I've created with Windows Template Studio plugin for Visual Studio. If I try to recreate minimal solution from scratch with all properties 1:1 as in my app it works in fresh project, but not in mine.
How to dynamically update ListView height while keeping the ScrollViewer enabled?
If you want make RowDefinition height same as the ListView, you could give the ListView a name and use {Binding ElementName=MyListView,Path=ActualHeight}syntax to bind both height property.
<Grid x:Name="ContentArea">
<Grid.RowDefinitions>
<RowDefinition Height="{Binding ElementName=MyListView,Path=ActualHeight}" />
</Grid.RowDefinitions>
<ListView
Name="MyListView"
CanDragItems="True"
CanReorderItems="True"
AllowDrop="True"
Loaded="MyListView_Loaded"
SelectionMode="Single"
ScrollViewer.VerticalScrollBarVisibility="Visible">
<ListView.ItemTemplate>
<DataTemplate >
<Grid
Background="LightGray"
HorizontalAlignment="Left"
VerticalAlignment="Stretch"
BorderBrush="Black">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="100"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="100"/>
</Grid.RowDefinitions>
<TextBlock
Text="{Binding}"
VerticalAlignment="Center"
HorizontalAlignment="Center"
FontSize="24"
Margin="20,5,20,5"/>
<Grid
Background="Black"
Width="500"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch"
Grid.Column="1">
</Grid>
</Grid>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</Grid>
I have this following code on windows store app project.
<Grid x:Name="minutesGrid" Height="1000" Width="1024" Background="White" >
<Grid.RowDefinitions>
<RowDefinition Height="20"/>
<RowDefinition Height="50"/>
<RowDefinition Height="100"/>
<RowDefinition Height="750"/>
<RowDefinition Height="30"/>
</Grid.RowDefinitions>
<StackPanel Grid.Row="1" Background="White" Height="50" Orientation="Vertical" >
<TextBlock x:Name="minutesTitle" Text="" FontFamily="Segoe UI Semilight" FontWeight="SemiLight" FontSize="24" TextAlignment="Center" Foreground="{StaticResource BrandBrush}" Margin="0,15,0,0"></TextBlock>
</StackPanel>
<StackPanel Grid.Row="2" Background="White">
<ScrollViewer HorizontalScrollBarVisibility="Disabled" HorizontalScrollMode="Disabled" VerticalScrollMode="Enabled" VerticalScrollBarVisibility="Visible" Height="100">
<TextBlock x:Name="minutesDesc" Text="" FontFamily="Segoe UI Semilight" FontWeight="SemiLight" FontSize="24" Foreground="{StaticResource BrandBrush}" Margin="15,15,0,0" TextWrapping="WrapWholeWords"></TextBlock>
</ScrollViewer>
</StackPanel>
<StackPanel Grid.Row="3" Background="White">
<PdfViewer:SfPdfViewerControl x:Name="minutesPDF" Canvas.ZIndex="1"/>
</StackPanel>
</Grid>
And when i load the pdf it doesnt show the scrollbars or lets me do a scroll either with mousewheel or on tablet with fingers.
This is how i load my file, that is displayed correctly.
var datapdf = await objService.DownloadFileService("teste.pdf",minutes.gappFile._id);
PdfLoadedDocument pdf = new PdfLoadedDocument(Convert.FromBase64String(datapdf));
await minutesPDF.LoadDocumentAsync(pdf);
minutesPDF.ViewMode = Syncfusion.Windows.PdfViewer.PageViewMode.Normal;
Do i need to add something else?
I think that you've to remove the StackPanel and assign the Grid.Row to the PDFViewer ..
SF Ref :
http://help.syncfusion.com/winrt/pdfviewer/getting-started
Since StackPanel has a default behavior to grow in one direction, scroll of the control included in the StackPanel will not be initiated without the height property being set to it.
Please find the following link which illustrates the reason “Why the control cannot be scrolled inside StackPanel without setting its height property?”
How can I get ScrollViewer to work inside a StackPanel?
Code Snippet: XAML
<Grid x:Name="minutesGrid" Height="1000" Width="1024" Background="White">
<Grid.RowDefinitions>
<RowDefinition Height="20"/>
<RowDefinition Height="50"/>
<RowDefinition Height="100"/>
<RowDefinition Height="750"/>
<RowDefinition Height="30"/>
</Grid.RowDefinitions>
<StackPanel Grid.Row="1" Background="White" Height="50" Orientation="Vertical" >
<TextBlock x:Name="minutesTitle" Text="" FontFamily="Segoe UI Semilight" FontWeight="SemiLight" FontSize="24" TextAlignment="Center" Foreground="{StaticResource BrandBrush}" Margin="0,15,0,0"></TextBlock>
</StackPanel>
<StackPanel Grid.Row="2" Background="White">
<ScrollViewer HorizontalScrollBarVisibility="Disabled" HorizontalScrollMode="Disabled" VerticalScrollMode="Enabled" VerticalScrollBarVisibility="Visible" Height="100">
<TextBlock x:Name="minutesDesc" Text="" FontFamily="Segoe UI Semilight" FontWeight="SemiLight" FontSize="24" Foreground="{StaticResource BrandBrush}" TextWrapping="WrapWholeWords"/>
</ScrollViewer>
</StackPanel>
<StackPanel Grid.Row="3" Background="White">
<PdfViewer:SfPdfViewerControl x:Name="minutesPDF" Height="750" Canvas.ZIndex="1"></PdfViewer:SfPdfViewerControl>
</StackPanel>
</Grid>
I have the following XAML code:
<!--LayoutRoot is the root grid where all page content is placed-->
<Grid x:Name="LayoutRoot" Background="#FFE8E8E8">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,0" >
<TextBlock x:Name="AppName" Text="Agent" Style="{StaticResource PhoneTextNormalStyle}" Margin="12,0" Foreground="Black" />
<TextBlock x:Name="PageName" Text="agent audit" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}" Height="100" Foreground="Black"/>
</StackPanel>
<Grid x:Name="ContentPanel" Grid.Row="1" Background="White"/>
<ScrollViewer HorizontalAlignment="Left" Margin="0,0,0,0" Grid.Row="1" VerticalAlignment="Top">
<TextBlock x:Name="auditText" HorizontalAlignment="Left" Margin="0,0,0,0" Grid.Row="1" TextWrapping="Wrap" Text="TextBlock" VerticalAlignment="Top" Foreground="Black" Padding="10"/>
</ScrollViewer>
</Grid>
When the page comes into view I assign the TextBlock with the contents of an API Call (audit log text), and this gets quite long.
However, currently it cuts off all text below the screen height. I have the TextBlock and ScrollView set to Auto layout height/width.
I can even see the top of the next line of text, when I scroll the rest doesn't appear. Quite hard to screenshot too as you only see the issue when scrolling, and whilst scrolling I can't take a screenshot :/
Any ideas where I'm going wrong?
I've read numerous posts on this site but nothing quite hit what I was after.
Thanks.
This ended up working for me:
<ScrollViewer Height="Auto" Grid.Row="1">
<TextBlock x:Name="auditText" Text="TextBlock"
VerticalAlignment="Top" Foreground="Black" Margin="0,10,0,0" Grid.Row="1" Padding="20" TextWrapping="Wrap">
</TextBlock>
</ScrollViewer>
Setting the ScrollViewer height to AUTO
I have a stackpanel which sometimes contains more data than can fit on the screen. When this happens I'm unable to scroll down to see the rest of the list. So I added a ScrollViewer to fix this but I'm unable to get it working. This is the code:
<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
<ScrollViewer Height="500" Name="Scroller" VerticalScrollBarVisibility="Auto">
<StackPanel Orientation="Vertical" Name="Stack" Height="2000">
<TextBlock Text="{Binding BookableExplanation}" Foreground="#336699" TextWrapping="Wrap"/>
<Button Visibility="{Binding ShowLinkToSite, Converter={StaticResource BooleanToVisibilityConverter}}" cal:Message.Attach="[Event Click] = [Action OpenStuntOnWebAsRegularOffer]" Foreground="#FFFFFF" Background="#336699" BorderThickness="0">neckermann.be</Button>
<ListBox x:Name="DepartureDates" MinHeight="2000"
cal:Message.Attach="[Tap]=[Action OpenStuntOnWeb(DepartureDates.SelectedItem)]">
<ListBox.ItemTemplate>
<DataTemplate>
<Grid DataContext="{Binding}" Background="#336699" Margin="0,10,0,10">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" MinWidth="430"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<StackPanel Grid.Column="1" Orientation="Vertical" Margin="10,10,10,10">
<TextBlock Text="{Binding Date, StringFormat='dd/MM/yyyy'}" Foreground="#FFFFFF" TextWrapping="Wrap" TextAlignment="Center"/>
</StackPanel>
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</StackPanel>
</ScrollViewer>
</Grid>
Any ideas ? On other views I just have text that scrolls fine, it's only when adding items dynamically that I ran into issues. Saw some posts here also about problems with the scrollviewer but followed those advice such as setting scrollviewer height lower than the stackpanel but didn't work. It's probably something really simple but can't find it :) It does the scrolling movement but just doesn't allow me to go down.
Thanks,
Jorn
I managed to fix it by reworking my XAML. It seems the stackpanel was the problem. Behavior is slightly different now but I can live with it.
<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<StackPanel Grid.Row="0" Margin="0,0,0,5">
<TextBlock Text="{Binding BookableExplanation}" Foreground="#336699" TextWrapping="Wrap"/>
<Button Visibility="{Binding ShowLinkToSite, Converter={StaticResource BooleanToVisibilityConverter}}" cal:Message.Attach="[Event Click] = [Action OpenStuntOnWebAsRegularOffer]" Foreground="#FFFFFF" Background="#336699" BorderThickness="0">neckermann.be</Button>
</StackPanel>
<ListBox Grid.Row="1" x:Name="DepartureDates"
cal:Message.Attach="[Tap]=[Action OpenStuntOnWeb(DepartureDates.SelectedItem)]">
<ListBox.ItemTemplate>
<DataTemplate>
<Grid DataContext="{Binding}" Background="#336699" Margin="0,10,0,10">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" MinWidth="430"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<StackPanel Grid.Column="1" Orientation="Vertical" Margin="10,10,10,10">
<TextBlock Text="{Binding Date, StringFormat='dd/MM/yyyy'}" Foreground="#FFFFFF" TextWrapping="Wrap" TextAlignment="Center"/>
</StackPanel>
</Grid>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
</Grid>
Listbox has inbuilt Scroll viewer. So if you manually add scroll viewer, both controls will fight each other.
Do remove your scroll viewer. Will work.
I have a Windows Phone 8 app using XAML/C#. My app has an ItemsControl that relies on a data template. My DataTemplate looks like the following:
<DataTemplate x:Key="myTemplate">
<Grid Margin="0,0,0,8">
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Grid VerticalAlignment="Center">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<TextBlock Text="{Binding DisplayName}" TextWrapping="NoWrap" Style="{StaticResource PhoneTextLargeStyle}" TextTrimming="WordEllipsis" >
<toolkit:ContextMenuService.ContextMenu>
<toolkit:ContextMenu>
<toolkit:MenuItem x:Name="customerMenuItem" Foreground="White" Header="View Customer Profile" Click="customerMenuItem_Click" Tag="{Binding Path=CustomerName}" />
</toolkit:ContextMenu>
</toolkit:ContextMenuService.ContextMenu>
</TextBlock>
<TextBlock Text="{Binding Summary}" TextWrapping="NoWrap" Grid.Row="1" Style="{StaticResource PhoneTextSmallStyle}" />
</Grid>
<StackPanel Orientation="Horizontal" Grid.Column="1"><!-- Stuff here --></StackPanel>
</Grid>
</DataTemplate>
This DataTemplate is referenced in the main part of my XAML as shown here:
<Grid x:Name="ContentPanel" Grid.Row="1" Grid.ColumnSpan="2" Margin="12,0,12,0">
<ScrollViewer>
<ItemsControl x:Name="myItemsControl" ItemTemplate="{StaticResource myTemplate}" ItemsSource="{Binding Customers}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Vertical" />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
</ScrollViewer>
</Grid>
Please note, the "toolkit" namespace comes from clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone.Controls.Toolkit. When I hold my finger (or mouse) on the TextBlock, a context menu appears. However, I never see the words "View Customer Profile". I just see a block box that represents the context menu itself. I know that the item is there though. I know because the customerMenuItem_Click event successfully fires. I have a MessageBox in there that shows the value of the Tag. That value is always correct. For some reason though the menu item text is not appearing. What am I doing wrong?
You put Foreground = "White". Context menu is on white background. That is why you don't see your menu item.