I'm trying to put two Grids in a DataTemplate.
I'm getting the following error with my code shown below.
Error: "The property 'VisualTree' is set more than once"
<DataTemplate x:Key="PareoItemTemplate">
<Grid x:Name="gridColorEjercicio" Height="100" Width="350" Background="#FFF0F0F0" Margin="-11,0,0,0">
<StackPanel Margin="0" Orientation="Vertical" HorizontalAlignment="Center" VerticalAlignment="Center">
<StackPanel Margin="0,10,15,0" Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center">
<TextBlock HorizontalAlignment="Center" TextWrapping="Wrap" Text="{Binding letter}" FontSize="24" FontFamily="Resources/Fonts/Programa Tutorias Bold.ttf#Programa Tutorias" Foreground="Black" VerticalAlignment="Center"/>
<TextBlock TextWrapping="Wrap" Text="{Binding option}" FontSize="24" FontFamily="Resources/Fonts/Programa Tutorias Bold.ttf#Programa Tutorias" Width="253" Foreground="Black" HorizontalAlignment="Center" VerticalAlignment="Center"/>
</StackPanel>
<Grid VerticalAlignment="Center" Margin="5,10,5,0" HorizontalAlignment="Center">
<Image Source="{Binding imageURI}" />
</Grid>
</StackPanel>
</Grid>
<Grid x:Name="gridPareoColorEjercicio" Height="100" Width="350" Background="#FFF0F0F0" Margin="-11,0,0,0">
<StackPanel Margin="0" Orientation="Vertical" HorizontalAlignment="Center" VerticalAlignment="Center">
<StackPanel Margin="0,10,15,0" Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Center">
<TextBlock HorizontalAlignment="Center" TextWrapping="Wrap" Text="{Binding letter}" FontSize="24" FontFamily="Resources/Fonts/Programa Tutorias Bold.ttf#Programa Tutorias" Foreground="Black" VerticalAlignment="Center"/>
<TextBlock TextWrapping="Wrap" Text="{Binding option}" FontSize="24" FontFamily="Resources/Fonts/Programa Tutorias Bold.ttf#Programa Tutorias" Width="253" Foreground="Black" HorizontalAlignment="Center" VerticalAlignment="Center"/>
</StackPanel>
<Grid VerticalAlignment="Center" Margin="5,10,5,0" HorizontalAlignment="Center">
<Image Source="{Binding imageURI}" />
</Grid>
</StackPanel>
</Grid>
</DataTemplate>
A data template can only have one visual tree but you are defining two grids. If you want the two grids to appear next to each other or one below the other, wrap them in a StackPanel and set the property Orientation accordingly.
<DataTemplate>
<StackPanel Orientation="Vertical">
<Grid>[...]</Grid>
<Grid>[...]</Grid>
</StackPanel>
</DataTemplate>
Related
Question: Why won't my databound text render as text
When I am using databound TextBlock controls, the output in my Windows App shows as Squares, like it can't figure out what to render the text as. If I put actual text in the Text property, it displays normally.
<RelativePanel x:Name="BasicInfo" RightOf="ProfilePicture">
<StackPanel Orientation="Vertical">
<StackPanel Orientation="Horizontal">
<TextBlock x:Name="FirstName" Text="{Binding FirstName}"
TextWrapping="NoWrap" Margin="10,0,0,0"/>
<TextBlock x:Name="LastName" Text="{Binding LastName}"
TextWrapping="NoWrap" Padding="3,0,0,0"/>
</StackPanel>
<TextBlock x:Name="EmailAddress" HorizontalAlignment="Left" Text="{Binding EmailAddress}"
TextWrapping="NoWrap" Margin="10,2,0,0" />
<TextBlock x:Name="PhoneNumber" HorizontalAlignment="Left" Text="{Binding PhoneNumber}"
TextWrapping="NoWrap" Margin="10,2,0,0" />
</StackPanel>
</RelativePanel>
<RelativePanel x:Name="AddressInfo" Below="BasicInfo" RightOf="ProfilePicture" Margin="0, 20, 0, 0">
<StackPanel Orientation="Vertical">
<TextBlock x:Name="Address1" HorizontalAlignment="Left" Text="{Binding Address1}"
TextWrapping="NoWrap" Margin="10,0,0,0"/>
<TextBlock x:Name="Address2" HorizontalAlignment="Left" Text="{Binding Address2}"
TextWrapping="NoWrap" TextAlignment="Left" Margin="10,0,0,0"/>
<StackPanel Orientation="Horizontal">
<TextBlock x:Name="City" HorizontalAlignment="Left" Text="{Binding City}"
TextWrapping="NoWrap" Margin="10,0,0,0"/>
<TextBlock>,</TextBlock>
<TextBlock x:Name="State" Text="{Binding State}"
TextWrapping="NoWrap" Margin="3,0,0,0"/>
</StackPanel>
<TextBlock x:Name="ZipCode" HorizontalAlignment="Left" Text="{Binding ZipCode}"
TextWrapping="NoWrap" Margin="10,0,0,0"/>
</StackPanel>
</RelativePanel>
Here is what the output looks like:
we can try in xaml.cs page
Dispatcher.BeginInvoke(delegate
{
listboxname.ItemsSource = Resultclassname;
});
In my WP8 project textblock is cutting text unexpectedly. How can I solve it? I have used VerticalAlignment Strecth or Height auto in scrollviewer but they have not solve it.
And my xaml, I am using one of these stackpanels :
<ScrollViewer>
<Grid>
<StackPanel x:Name="stackNormal" Visibility="Collapsed" VerticalAlignment="Top" Background="Transparent">
<ListBox Name="ImageList" ItemsSource="{Binding Summary.Text , Converter={StaticResource ImageFromRssText}}" ScrollViewer.VerticalScrollBarVisibility="Disabled">
<ListBox.ItemTemplate>
<DataTemplate>
<Image Source="{Binding URL}" Tag="{Binding Title}" Margin="5,15,0,0"></Image>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
<TextBlock TextDecorations="Underline" MouseLeftButtonUp="feedTitle_MouseLeftButtonUp" FontSize="25" Name="feedTitle" TextWrapping="Wrap" HorizontalAlignment="Stretch" Foreground="{StaticResource PhoneAccentBrush}" Text="{Binding Title.Text, Converter={StaticResource RssTextTrimmer}}" VerticalAlignment="Top" Margin="5,3,0,2" />
<TextBlock Name="feedSummary" TextWrapping="Wrap" Margin="5,0,15,0" Text="{Binding Summary.Text, Converter={StaticResource RssTextTrimmerLong}}" HorizontalAlignment="Stretch" FontSize="20" VerticalAlignment="Stretch"/>
<TextBlock Name="feedPubDate" Foreground="{StaticResource PhoneSubtleBrush}" Margin="12,20,0,5" Text="{Binding PublishDate.DateTime}" HorizontalAlignment="Center" />
</StackPanel>
<StackPanel x:Name="stackPhotoBug" Visibility="Collapsed" VerticalAlignment="Top" Background="Transparent">
<ListBox Name="ImageList2" ItemsSource="{Binding Links}" ScrollViewer.VerticalScrollBarVisibility="Disabled">
<ListBox.ItemTemplate>
<DataTemplate>
<Image Source="{Binding Converter={StaticResource ImagesFromRssTextForPhotoBug}}" HorizontalAlignment="Stretch" Margin="5,15,0,0" MaxHeight="500"></Image>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
<TextBlock TextDecorations="Underline" MouseLeftButtonUp="feedTitle_MouseLeftButtonUp" FontSize="25" Name="feedTitle2" TextWrapping="Wrap" HorizontalAlignment="Stretch" Foreground="{StaticResource PhoneAccentBrush}" Text="{Binding Title.Text, Converter={StaticResource RssTextTrimmer}}" VerticalAlignment="Top" Margin="5,3,0,2" />
<TextBlock Name="feedSummary2" TextWrapping="Wrap" Margin="5,0,15,0" Text="{Binding Summary.Text, Converter={StaticResource RssTextTrimmerLong}}" HorizontalAlignment="Stretch" FontSize="20" VerticalAlignment="Stretch"/>
<TextBlock Name="feedPubDate2" Foreground="{StaticResource PhoneSubtleBrush}" Margin="12,20,0,5" Text="{Binding PublishDate.DateTime}" HorizontalAlignment="Center" />
</StackPanel>
</Grid>
</ScrollViewer>
Maybe it is because of such big text (TextBlock has limit - 2048px). You should try ScrollableTextBlock
Place the textblock inside scrollviewer
<scrollviewer verticalBarvisibility="visible">
<TextBlock Name="feedSummary" TextWrapping="Wrap"
Text="{Binding Summary.Text, Converter={StaticResource RssTextTrimmerLong}}"
HorizontalAlignment="Stretch" FontSize="20"
VerticalAlignment="Stretch"/>
</scrollviewer>
Any element that must be displayed beyond the area which is larger than 2048x2048 pixels would be clipped by the platform
Creating Scrollable TextBlock for WP7.
The below given is the code which use getting each row of a list,
<ListBox x:Name="List" HorizontalAlignment="Left" Height="575" Margin="6,0,0,0" VerticalAlignment="Top" Width="443" SelectionChanged="List_SelectionChanged_1">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal" Width="430" Height="80">
<Grid Margin="0,0,0,0" Height="90" Width="305">
<TextBlock HorizontalAlignment="Left" Height="60" Margin="0,0,0,0" FontWeight="Medium" TextWrapping="Wrap" Text="{Binding Name}" VerticalAlignment="Top" Width="268" FontSize="25"/>
<TextBlock HorizontalAlignment="Left" Height="60" Margin="0,36,0,-1" TextWrapping="Wrap" Text="{Binding TaxType}" VerticalAlignment="Top" Width="259" Foreground="Gray" FontSize="16"/>
</Grid>
<StackPanel Orientation="Horizontal" Margin="0,0,0,0" FlowDirection="RightToLeft" Grid.Row="0" Width="125" HorizontalAlignment="Right">
<TextBlock Text="{Binding Percentage}" FontSize="23" VerticalAlignment="Center" HorizontalAlignment="Right" FontFamily="Portable User Interface" Height="75"/>
</StackPanel>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
Now how can i draw a line at the end of this stack panel(i.e between each row in the list)
What you have to do is,Add your current data within the stackpanel and then add Path mentioned in the previous answer and place these two within a stackpanel with Orientation = Horizontal
In your StackPanel underneath all other, apply this:
<Path Data="M0,0 L1,1 M0,1 L1,0" Stretch="Uniform" Stroke="Red" />
i have a listbox with around 150 items in it. the problem is that it is not taking any events. other listboxes have less than 90 items and they are working fine.
is there any limit or something which is preventing event handeling??
<ScrollViewer HorizontalAlignment="Left" Height="170" Margin="0,421,0,0" VerticalAlignment="Top" Width="480" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Disabled">
<ListBox Name="thirdList" Tap="firstList_SelectionChanged_1" Height="170" ScrollViewer.VerticalScrollBarVisibility="Disabled" >
<toolkit:GestureService.GestureListener>
<toolkit:GestureListener DragCompleted="GestureListener_DragCompleted"></toolkit:GestureListener>
</toolkit:GestureService.GestureListener>
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel Orientation="Horizontal" ScrollViewer.HorizontalScrollBarVisibility="Auto" ScrollViewer.VerticalScrollBarVisibility="Disabled" />
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
<ListBox.ItemContainerStyle>
<Style TargetType="ListBoxItem">
<Setter Property="Padding" Value="0 0 0 0 " />
</Style>
</ListBox.ItemContainerStyle>
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Vertical" Height="170" Width="150" Background="Transparent">
<!--Replace rectangle with image-->
<Image Source="{Binding image}" Stretch="UniformToFill" Margin="0,20" HorizontalAlignment="Left" VerticalAlignment="Bottom" Height="140" Width="119"></Image>
<Grid Margin="0,-335,0,0" HorizontalAlignment="Center" Background="Transparent" Height="30">
<TextBlock TextAlignment="Center" Text="{Binding brandName}" HorizontalAlignment="Center" FontSize="15" TextWrapping="NoWrap" Foreground="#FFAA1F17" />
</Grid>
<StackPanel Width="165" Margin="0,-65,0,0" Background="Transparent">
<Grid HorizontalAlignment="Stretch" Height="55" Background="#FF9B9A9A">
<StackPanel Orientation="Vertical" VerticalAlignment="Center" HorizontalAlignment="Center" Background="Transparent">
<TextBlock TextAlignment="Center" Text="{Binding productName}" TextWrapping="Wrap" HorizontalAlignment="Center" Foreground="White" FontSize="15" />
<TextBlock TextAlignment="Center" Text="{Binding price}" TextWrapping="Wrap" HorizontalAlignment="Center" Foreground="#99FFFFFF" FontSize="15" />
</StackPanel>
</Grid>
</StackPanel>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</ScrollViewer>
vjamit please consider using LongListSelector for Windows Phone 8 applications and not the old ListBox.
I have tested LLS with more than 5k items and it loads and plays just fine.
Also there is no need at all to wrap LLS in a ScrollViewer. Check below example:
<phone:PhoneApplicationPage.Resources>
<DataTemplate x:Key="LLSTemplate">
<Grid Tap="firstList_SelectionChanged_1">
<toolkit:GestureService.GestureListener>
<toolkit:GestureListener DragCompleted="GestureListener_DragCompleted"></toolkit:GestureListener>
</toolkit:GestureService.GestureListener>
<StackPanel Orientation="Vertical" Height="170" Width="150" Background="Transparent">
<!--Replace rectangle with image-->
<Image Source="{Binding image}" Stretch="UniformToFill" Margin="0,20" HorizontalAlignment="Left" VerticalAlignment="Bottom" Height="140" Width="119"></Image>
<Grid Margin="0,-335,0,0" HorizontalAlignment="Center" Background="Transparent" Height="30">
<TextBlock TextAlignment="Center" Text="{Binding brandName}" HorizontalAlignment="Center" FontSize="15" TextWrapping="NoWrap" Foreground="#FFAA1F17" />
</Grid>
<StackPanel Width="165" Margin="0,-65,0,0" Background="Transparent">
<Grid HorizontalAlignment="Stretch" Height="55" Background="#FF9B9A9A">
<StackPanel Orientation="Vertical" VerticalAlignment="Center" HorizontalAlignment="Center" Background="Transparent">
<TextBlock TextAlignment="Center" Text="{Binding productName}" TextWrapping="Wrap" HorizontalAlignment="Center" Foreground="White" FontSize="15" />
<TextBlock TextAlignment="Center" Text="{Binding price}" TextWrapping="Wrap" HorizontalAlignment="Center" Foreground="#99FFFFFF" FontSize="15" />
</StackPanel>
</Grid>
</StackPanel>
</StackPanel>
</Grid>
</DataTemplate>
</phone:PhoneApplicationPage.Resources>
<!--ContentPanel - place additional content here-->
<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
<phone:LongListSelector x:Name="thirdList" Height="170" ItemTemplate="{StaticResource LLSTemplate}"/>
</Grid>
Let me know if the above works.
EDITED:
Try applying the following changes on the ScrollViewer: HorizontalScrollBarVisibility="Disabled". Tested with 500+ and it works. Seems like a "bug".
I'm going through the Windows 8 Bing Translator Walkthrough
I was able to follow everything except the XAML part. I'm very new to XAML. Below is what the walkthrough appears to recommend, however VS2012 indicated the markup is invalid, and the error displayed says "the property "content" is set more than once". Is this the only issue? Where this is set more than once?
<GridView ItemTemplate="{StaticResource TweetTemplate}" SelectionMode="None" ItemsSource="{Binding tweets}"></GridView>
<DataTemplate x:Key="TweetTemplate">
<Grid>
<Rectangle Fill="#FFDA713F" HorizontalAlignment="Left" Height="115" Margin="10,11,0,0"
VerticalAlignment="Top" Width="455" RadiusX="20" RadiusY="20"/>
<TextBlock Foreground="White" HorizontalAlignment="Left" Height="50"
Margin="176,12,0,0" TextWrapping="Wrap" x:Name="txtTweet"
Text="{Binding Title}" VerticalAlignment="Top" Width="277" FontSize="12"/>
<TextBlock Foreground="White" HorizontalAlignment="Left" Height="50"
Margin="176,72,0,0" TextWrapping="Wrap" x:Name="txtTrans"
Text="{Binding translatedText}" VerticalAlignment="Top" Width="277"
FontSize="12"/>
<Image Source="{Binding ImageUri}" HorizontalAlignment="Left" Height="89"
Margin="20,20,0,0" VerticalAlignment="Top" Width="116"/>
<TextBlock Foreground="White" HorizontalAlignment="Left" Height="17"
Margin="24,109,0,0" TextWrapping="Wrap" Text="{Binding Author}"
VerticalAlignment="Top" Width="150" FontSize="10"/>
</Grid>
</DataTemplate>
...and no sooner do I post the question, I find the answer. the above needs to be arranged as follows:
Note that from the example in the link provided above the author used RefreshAppBarButtonStyle. This was changed to AppBarButtonStyle. I;m not sure I fully understand the xaml page yet, but at least I have a working framework to diagnose.
<Page.Resources>
<DataTemplate x:Key="TweetTemplate">
<Grid>
<Rectangle Fill="#FFDA713F" HorizontalAlignment="Left" Height="115" Margin="10,11,0,0" VerticalAlignment="Top" Width="455" RadiusX="20" RadiusY="20"/>
<TextBlock Foreground="White" HorizontalAlignment="Left" Height="50" Margin="176,12,0,0" TextWrapping="Wrap" x:Name="txtTweet" Text="{Binding Title}" VerticalAlignment="Top" Width="277" FontSize="12"/>
<TextBlock Foreground="White" HorizontalAlignment="Left" Height="50" Margin="176,72,0,0" TextWrapping="Wrap" x:Name="txtTrans" Text="{Binding translatedText}" VerticalAlignment="Top" Width="277" FontSize="12"/>
<Image Source="{Binding ImageUri}" HorizontalAlignment="Left" Height="89" Margin="20,20,0,0" VerticalAlignment="Top" Width="116"/>
<TextBlock Foreground="White" HorizontalAlignment="Left" Height="17" Margin="24,109,0,0" TextWrapping="Wrap" Text="{Binding Author}" VerticalAlignment="Top" Width="150" FontSize="10"/>
</Grid>
</DataTemplate>
</Page.Resources>
<Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
<GridView ItemTemplate="{StaticResource TweetTemplate}" SelectionMode="None" ItemsSource="{Binding tweets}"></GridView>
</Grid>
<Page.BottomAppBar>
<AppBar x:Name="bottomAppBar" Padding="10,0,10,0">
<Grid>
<StackPanel Orientation="Horizontal" HorizontalAlignment="Right">
<TextBlock x:Name="txtPrompt" Text="Search Term: " Height="24" FontSize="24"></TextBlock>
<TextBox x:Name="txtSearchTerm" Width="300" Height="24"></TextBox>
<Button Style="{StaticResource AppBarButtonStyle}" Click="Button_Click_1" />
</StackPanel>
</Grid>
</AppBar>
</Page.BottomAppBar>
Hope this is also of use to someone else.
Paul