WP scrolling issue with listbox and scrollviewer - windows-phone

Hi I am trying to get my UI have scrolling in partial page having a list. Here's my code -
<Grid x:Name="ContentPanel" Grid.Row="1" Margin="10,0,14,10">
<StackPanel>
<StackPanel Orientation="Horizontal">
<TextBox x:Name="searchTerm" Text="potato" Width="379" />
<Button x:Name="btnSearch" Content="Go" Click="btnSearch_Click" />
</StackPanel>
<TextBlock x:Name="noResultsTxt" Visibility="Collapsed" Margin="10, 30, 0, 0" Text="No results found! try different search term" Style="{StaticResource PhoneTextNormalStyle}" />
<ScrollViewer Height="520" Width="Auto" ScrollViewer.HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
<StackPanel>
<ListBox x:Name="itemlist" SelectionChanged="itemlist_SelectionChanged" Margin="0,10,0,0" >
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Margin="10" >
<TextBlock Text="{Binding Title}" FontSize="35" FontWeight="Normal"/>
<TextBlock Text="{Binding CommaCategories}" FontSize="20" FontWeight="Light" FontStyle="Italic"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</StackPanel>
</ScrollViewer>
</StackPanel>
</Grid>
Doesnt seem to be scrolling at the List area. i seem to have figured out that the issue is with Scrollviewer not able to interact where ListBox exists. I verified that the scrolling is happening perfectly fine by setting IsHitTestVisible property of ListBox to be false.
Can someone help me out!

Answering my own question! Just as AMR commented it, I figured out that I don't need the scroll viewer, I just set the height of ListBox and scrolling worked fine! :)
On why external scrollviewer wont work with Listbox - https://stackoverflow.com/a/1294786/729032

Related

Styling ListView in UWP

I found this question + answer to my problem here on stackoverflow, but for me its not totally clear where to change the
ListViewItemPresenter
I tried many things, but it seems like I cant find it on my own :(
Here is my XAML code for this frame:
<Page.Resources>
<DataTemplate x:Key="ItemListDataTemplate" x:DataType="data:Item">
<StackPanel Orientation="Horizontal" HorizontalAlignment="Left">
<Image Name="image" Source="{x:Bind CoverImage}" HorizontalAlignment="Center" Width="150" />
<StackPanel Margin="20,20,0,0">
<TextBlock Text="{x:Bind Name}" HorizontalAlignment="Left" FontSize="16" Name="NameTextBlock"/>
<TextBlock Text="{x:Bind Description}" HorizontalAlignment="Left" FontSize="10" Name="DescriptionTextBlock"/>
<StackPanel Orientation="Horizontal">
<TextBlock Text="{x:Bind Price}" HorizontalAlignment="Left" FontSize="26" Name="PriceTextBlock"/>
<TextBlock Text="€" FontSize="26" Name="Currency" Margin="5,0,0,0"/>
</StackPanel>
</StackPanel>
</StackPanel>
</DataTemplate>
</Page.Resources>
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<ListView ItemsSource="{x:Bind Items}"
ScrollViewer.VerticalScrollBarVisibility="Hidden"
ItemClick="ListView_ItemClick"
IsItemClickEnabled="True"
ItemTemplate="{StaticResource ItemListDataTemplate}"
>
</ListView>
</Grid>
Can someone help me our please? Thank you very much for your time!
There are two ways to edit ListViewItemPresenter in your Page:
You can copy the XAML Template from here (the first XAML codes block below Default Style). Add it to your Page.Resources. ListViewItemPresenter lies among those XAML codes, you can edit its Properties and this style will be applied to all the items of this page's ListView. Notes: don't add x:Key to this style.
Add a ListViewItem Control to your Page like below:
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<ListViewItem></ListViewItem>
</Grid>
Document Outline->Select ListViewItem->Edit Template->Edit a Copy:
Remove the x:Key Property of generated Style Resource, so that this style will be applied to all ListViewItem. Then you can edit the ListViewItemPresenter in the generated XAML Resource.
Just add your DataTemplate inside of the Listview.
Put it in the ItemTemplate property.
<ListView ItemsSource="{x:Bind Items}"
ScrollViewer.VerticalScrollBarVisibility="Hidden"
ItemClick="ListView_ItemClick"
IsItemClickEnabled="True" >
<ListView.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal" HorizontalAlignment="Left">
<Image Name="image" Source="{x:Bind CoverImage}" HorizontalAlignment="Center" Width="150" />
<StackPanel Margin="20,20,0,0">
<TextBlock Text="{x:Bind Name}" HorizontalAlignment="Left" FontSize="16" Name="NameTextBlock"/>
<TextBlock Text="{x:Bind Description}" HorizontalAlignment="Left" FontSize="10" Name="DescriptionTextBlock"/>
<StackPanel Orientation="Horizontal">
<TextBlock Text="{x:Bind Price}" HorizontalAlignment="Left" FontSize="26" Name="PriceTextBlock"/>
<TextBlock Text="€" FontSize="26" Name="Currency" Margin="5,0,0,0"/>
</StackPanel>
</StackPanel>
</StackPanel>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>

Vertical Scrollbar not visible in listbox inside popup-element

The vertical Scrollbar is visible in W 8.1 but not in WP 8.1 on my emulator.
What have i missed?
I have also tried to set VerticalScrollBarVisibility to Visible
<Popup x:Name="LayerPopupWindow" IsLightDismissEnabled="True" >
<ListBox x:Name="MyList" Margin="3" Width="auto" Background="#DDFFFFFF"
Height="{Binding Path=ActualHeight,ElementName=MyMapView}" ScrollViewer.VerticalScrollBarVisibility="Auto" ScrollViewer.VerticalScrollMode="Enabled">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Height="auto" >
<CheckBox IsChecked="{Binding IsVisible, Mode=TwoWay}" BorderBrush="Black" MinWidth="30"/>
<TextBlock Text="{Binding ID, Mode=OneWay}" VerticalAlignment="Center" >
<ToolTipService.ToolTip>
<StackPanel MaxWidth="400">
<TextBlock FontWeight="Bold" Text="{Binding CopyrightText}" TextWrapping="Wrap" />
<TextBlock Text="{Binding Description}" TextWrapping="Wrap" />
</StackPanel>
</ToolTipService.ToolTip>
</TextBlock>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Popup>
Looked at your links Depechie and tried it in my example, for some reason the scrollbars still wasnt visible.
Then i found this link
Making ScrollViewer's ScrollBar always visible through overriding or styling
Tried it and the scrollbars know were visible, so problem solved.

Adding ListviewItem in Splitview

I am creating a Windows 10 universal App and I Have successfully created shell.xaml but I don't wanna use radioButton instead of that I have used a button and TextBlock.
I want to know how to make the TextBlock and Button a Single clickable entity through listView Item.
<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
<SplitView x:Name="mySplitView" DisplayMode="CompactInline" IsPaneOpen="False"
CompactPaneLength="50" OpenPaneLength="150" Content="{Binding}">
<SplitView.Pane>
<StackPanel Background="{ThemeResource SystemControlBackgroundAccentBrush}">
<Button x:Name="HamburgerButton" FontFamily="Segoe MDL2 Assets" Content=""
Width="50" Height="50" Background="Transparent" Foreground="White" Click="HamburgerButton_Click" />
<StackPanel Orientation="Horizontal">
<Button FontFamily="Segoe MDL2 Assets" Content=""
Width="50" Height="50" Background="Transparent" Foreground="White">
<TextBlock Foreground="White" FontSize="10" VerticalAlignment="Center" />
</StackPanel>
From what I understand you want to make an event fire whenever you press somewhere inside the StackPanel that contains the Button and TextBlock.
One solution would be to simply put your Button and TextBlock inside a ListView item.
Like this (I include all the xaml for the SplitView.Pane to make it a bit more clear):
<SplitView.Pane>
<StackPanel Background="{ThemeResource SystemControlBackgroundAccentBrush}">
<Button x:Name="HamburgerButton" FontFamily="Segoe MDL2 Assets" Content="" Width="50" Height="50" Background="Transparent" Foreground="White" Click="HamburgerButton_Click" />
<ListView>
<ListView.Items>
<ListViewItem Padding="0" Tapped="ListViewItem_Tapped">
<StackPanel Orientation="Horizontal" VerticalAlignment="Top" Height="50">
<Button FontFamily="Segoe MDL2 Assets" Content="" Width="50" Height="50" Background="Transparent" Foreground="White" />
<TextBlock Foreground="White" FontSize="10" Text="Wop wop!" VerticalAlignment="Center" />
</StackPanel>
</ListViewItem>
</ListView.Items>
</ListView>
</StackPanel>
</SplitView.Pane>
In this example only the '%' is shown when the pane is closed and the '%' plus the text "Wop wop!" when it's open. Whenever the content of this ListViewItem (the buton or TextBlock) is pressed, the method "ListViewItem_Tapped" will fire.
If I in any way misunderstood your question or you need any more info about my answer please let me know.
Have a wonderful day!
PS. The button still "acts" like a button, by showing it's own border, visual states and so on. I don't know from the top of my head how to disable this. But you could perhaps try disabling it or using another textblock instead? .DS

LongListSelector centered items unexpected position change

I have a LongListSelector control on a page in my Windows Phone 8 app. For this control I set a GroupHeaderTemplate and a ItemTemplate and both contain a TextBlock. If I align the TextBlock controls to center I have some weird behavior (maybe not weird but unexplainable to me at the moment). When I open the page on my phone the centered text moves ca. 5px to the right. The move is visible to the user (it's happening after the page is loaded). I tried to solve this problem but all margin changes (and other trials) did not change the behavior and my friend Google couldn't help me either. Can some explain to my why this is happening and how to solve this?
My code (simplified):
<Grid x:Name="ContentPanel" Grid.Row="1" Margin="0">
<phone:LongListSelector x:Name="longList" LayoutMode="List" HideEmptyGroups ="true" Margin="5,0,5,5" ItemsSource="{Binding List, Mode=OneWay}" IsGroupingEnabled="True" Background="Transparent" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
<phone:LongListSelector.Resources>
<DataTemplate x:Key="itemTemplate">
<Grid Margin="10,10,10,0" Background="#FFF3F1F1" HorizontalAlignment="Left">
<TextBlock x:Name="name" Margin="10" TextWrapping="NoWrap" Text="{Binding Name}" VerticalAlignment="Center" FontSize="40"/>
</Grid>
</DataTemplate>
<DataTemplate x:Key="groupHeaderTemplate">
<Grid Margin="10,10,10,0" Background="#FFF3F1F1" HorizontalAlignment="Center">
<TextBlock x:Name="name" Margin="10" TextWrapping="NoWrap" Text="test" VerticalAlignment="Center" FontSize="40"/>
</Grid>
</DataTemplate>
</phone:LongListSelector.Resources>
<!--<phone:LongListSelector.JumpListStyle>
<StaticResource ResourceKey="jumpListStyle"/>
</phone:LongListSelector.JumpListStyle>-->
<phone:LongListSelector.GroupHeaderTemplate>
<StaticResource ResourceKey="groupHeaderTemplate"/>
</phone:LongListSelector.GroupHeaderTemplate>
<phone:LongListSelector.ItemTemplate>
<StaticResource ResourceKey="itemTemplate"/>
</phone:LongListSelector.ItemTemplate>
<i:Interaction.Triggers>
<i:EventTrigger EventName="SelectionChanged">
<i:InvokeCommandAction Command="{Binding SelectItemCommand}"
CommandParameter="{Binding SelectedItem, ElementName=longList}"/>
</i:EventTrigger>
</i:Interaction.Triggers>
</phone:LongListSelector>
</Grid>
Thanks in advance

Windows 8 Metro XAML. How to change background of grid on hover and/or click

I would like to change the background of my grid to white when you hover over or select it. I'd also like to change the color of the text inside at the same time to black. This is specific to one page only, so it would need to be applied with an XKey or something as a guess. The grid starts with a transparent background, also.
I'm really struggling to find the direction for this. Please let me know if you have any ideas or links!
Here's my code:
<GridView.ItemTemplate>
<DataTemplate>
<Grid VerticalAlignment="Top" HorizontalAlignment="Left" Width="335" Height="152">
<StackPanel Orientation="Horizontal" Margin="2,2,2,2" VerticalAlignment="Top" HorizontalAlignment="Left">
<StackPanel Margin="13,0,13,0" Orientation="Vertical" VerticalAlignment="Top" HorizontalAlignment="Left">
<StackPanel Orientation="Horizontal" VerticalAlignment="Bottom">
<TextBlock Style="{StaticResource SmallText}" Text="{Binding Town}" />
<TextBlock Style="{StaticResource SmallText}" Text=", "/>
<TextBlock Style="{StaticResource SmallText}" Text="{Binding State}"/>
<TextBlock Style="{StaticResource SmallText}" Text=", "/>
<TextBlock Style="{StaticResource SmallText}" Text="{Binding Postcode}"/>
</StackPanel>
</StackPanel>
</StackPanel>
</Grid>
</DataTemplate>
</GridView.ItemTemplate>
Thanks for any help.
It seems like you would probably want to modify your GridView's ItemContainerStyle and change its background and visual states to match your requirements. Check my answer to an earlier question related to restyling items here to learn how to extract and modify these styles and templates.