Develop Reference

How to apply multiple styles in WPF TreeView

I am beginner on WPF and need help.
Problem:
I have 2 Tree View on the form and need to apply 2 different style on pair of 2 Tree View Comparison.
Is there any way we can achieve this ?
I have 2 Tree View look like this
<TreeView x:Name="Source1PermissionTreeView" ScrollViewer.VerticalScrollBarVisibility="Visible" Height="630" Width="890" >
<TreeView.Resources>
<DataTemplate DataType="{x:Type entities:SharePointUser}">
<DockPanel>
<CheckBox />
<Image Source="E:\SWorking\SharePointSecurityApps\SharePointSecurityApps\SharePointSecurityApps.WPF\Images\user.png"/>
<TextBlock Text="{Binding Path=Title}"/>
</DockPanel>
</DataTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Children}" DataType="{x:Type entities:SitePermission}">
<DockPanel>
<CheckBox />
<Image Source="E:\SWorking\SharePointSecurityApps\SharePointSecurityApps\SharePointSecurityApps.WPF\Images\sitepermission.png"/>
<TextBlock Text="{Binding Path=Title}"></TextBlock>
</DockPanel>
</HierarchicalDataTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Children}" DataType="{x:Type entities:SharePointGroup}">
<DockPanel>
<CheckBox />
<Image Source="E:\SWorking\SharePointSecurityApps\SharePointSecurityApps\SharePointSecurityApps.WPF\Images\group.png"/>
<TextBlock Text="{Binding Path=Title}"/>
</DockPanel>
</HierarchicalDataTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Children}" DataType="{x:Type entities:SharePointList}">
<DockPanel>
<CheckBox />
<Image Source="E:\SWorking\SharePointSecurityApps\SharePointSecurityApps\SharePointSecurityApps.WPF\Images\List.PNG"/>
<TextBlock Text="{Binding Path=Title}"/>
</DockPanel>
</HierarchicalDataTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Children}" DataType="{x:Type entities:SharePointSite}">
<DockPanel>
<CheckBox />
<Image Source="E:\SWorking\SharePointSecurityApps\SharePointSecurityApps\SharePointSecurityApps.WPF\Images\Site.png"/>
<TextBlock Text="{Binding Path=Title}"/>
</DockPanel>
</HierarchicalDataTemplate>
</TreeView.Resources>
How can I apply style in tree view?

WrapPanel doesnt wrap horizontal with DataTemplate

I'm filling a two WrapPanel with Buttons via DataTemplate but they all align vertically for some reason, what exactly is wrong here?
It doesn't matter if I set the Orientation property or not.
XAML:
<UserControl x:Class="DashboardClient.View.DashboardView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
Width="940" Height="640">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="400" />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<DockPanel Grid.Column="0" Height="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type Grid}},Path=ActualHeight}">
<ScrollViewer VerticalScrollBarVisibility="Auto" DockPanel.Dock="Top" Height="520" Margin="5">
<WrapPanel>
<ItemsControl ItemsSource="{Binding Dashboards}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<Button Width="120" Height="120" Margin="5" Command="{Binding DataContext.DashboardCommand, RelativeSource={RelativeSource AncestorType=ItemsControl}}" CommandParameter="{Binding}">
<TextBlock TextWrapping="Wrap" HorizontalAlignment="Center" Text="{Binding Name}" />
</Button>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
<Button Width="120" Height="120" Margin="5" Command="{Binding DashboardAddCommand}" Content="+" FontSize="100" />
</WrapPanel>
</ScrollViewer>
<StackPanel Height="100" Margin="5">
<Label>Dashboardname:</Label>
<TextBox Text="{Binding SelectedDashboard.Name}" />
<RadioButton Content="Sichtbar" Margin="0 10" IsChecked="{Binding SelectedDashboard.IsVisibleOnDashboard, UpdateSourceTrigger=PropertyChanged}" />
<Button Content="Dashboard löschen" Command="{Binding DashboardRemoveCommand}" />
</StackPanel>
</DockPanel>
<StackPanel Grid.Column="1" Margin="0">
<ScrollViewer VerticalScrollBarVisibility="Auto" Height="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type StackPanel}},Path=ActualHeight}">
<WrapPanel>
<ItemsControl ItemsSource="{Binding SelectedDashboard.DashboardItems}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<Button Width="200" Height="120" Command="{Binding DataContext.DashboardItemCommand, RelativeSource={RelativeSource AncestorType=ItemsControl}}" CommandParameter="{Binding}" Margin="10">
<TextBlock TextWrapping="Wrap" HorizontalAlignment="Center" Text="{Binding Name}" />
</Button>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
<Button Width="200" Height="120" Content="+" FontSize="100" Command="{Binding DashboardItemAddCommand}" Margin="10" />
</WrapPanel>
</ScrollViewer>
</StackPanel>
</Grid>
</UserControl>
This is what the WrapPanel looks like:
The Add Button is always cut off somehow, too.

If you want to put the children of the ItemsControl horizontally in a WrapPanel, you need to tell the ItemsControl to use a WrapPanel for its children via an ItemsPanelTemplate:
<WrapPanel Orientation="Horizontal">
<ItemsControl ItemsSource="{Binding Dashboards}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<Button
Width="120"
Height="120"
Margin="5"
Command="{Binding DataContext.DashboardCommand, RelativeSource={RelativeSource AncestorType=ItemsControl}}"
CommandParameter="{Binding}"
>
<TextBlock
TextWrapping="Wrap"
HorizontalAlignment="Center"
Text="{Binding Name}"
/>
</Button>
</DataTemplate>
</ItemsControl.ItemTemplate>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel Orientation="Horizontal" />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
<Button
Width="120"
Height="120"
Margin="5"
VerticalAlignment="Top"
Command="{Binding DashboardAddCommand}"
Content="+"
FontSize="100"
/>
</WrapPanel>
I don't know what you want to do with the button. My guess is that you want it to the right of the ItemsControl, and I aligned it to the top because that makes more sense to me.

Instead of
<ScrollViewer>
<WrapPanel>
<ItemsControl ItemsSource="{Binding Dashboards}">
<ItemsControl.ItemTemplate ... />
</ItemsControl>
<Button Content="+" ... />
</WrapPanel>
</ScrollViewer>
You can use
<ScrollViewer>
<ItemsControl ItemsSource="{Binding Dashboards}">
<ItemsControl.ItemTemplate ... />
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
<Button Content="+" ... /> <!-- A -->
</ScrollViewer>
<Button Content="+" ... /> <!-- B -->
WrapPanel is moved inside ItemsControl to layout dashboards.
You can put button somewhere else (same as #EdPlunkett I don't have a good idea where to put it): A - will let you to scroll button together with dashboards and B will keep button fixed, disregards scrolling.

How todo nested Databinding with Windows Phone (Pivot and ListBox)

I am pretty new in the usage of the DataBinding concept in Windows Phone. I am trying to bind a Pivot page with a list of items, as well as a ListBox in each PivotItem with another list (of criterias). I have a Page with the following XAML:
<phone:Pivot Name="ItemsPivot" Title="MY APPLICATION">
<phone:Pivot.ItemTemplate>
<DataTemplate>
<StackPanel Margin="12,17,0,28">
<ListBox Name="CriteriasListBox" >
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Vertical" >
<TextBlock Text="{Binding Name}"/>
<tk:Rating />
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</StackPanel>
</DataTemplate>
</phone:Pivot.ItemTemplate>
</phone:Pivot>
I then try to specify the ItemSource of each binded control in the C# code like this:
...
ItemsPivot.ItemsSource = ItemList;
CriteriasListBox.ItemsSource = CriteriaList; // <-- CriteriasListBox not accessible !!
...
But there is an error stating that "the name 'CriteriasListBox' does not exist in the current context"... As I mention, I am pretty new with this technology.
Can I have some advice, solution or resources on how do make this nested binding work?
Thank you !

Do like this,
<UserControl.Resources>
<DataTemplate x:Key="MyPivotItemTemplate">
<controls:PivotItem Header="first" >
<ListBox x:Name="CriteriasListBox" Margin="0,0,12,0" ItemsSource="{Binding CriteriaList}">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal" Height="132">
<TextBlock Text="{Binding Name}" />
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</controls:PivotItem>
</DataTemplate>
</UserControl.Resources>
Then in your pivot
<Pivot ItemsTemplate="{StaticResource MyPivotItemTemplate}" Items="{Binding ItemList}"

One of the ways if you have different criteria list for different items is to add criteria list property to your PivotItemViewModel. Your c# code will look like this
ItemsPivot.ItemsSource = ItemList;
where every item in ItemList contains CriteriaList. Your xaml code will look like
<phone:Pivot Name="ItemsPivot" Title="MY APPLICATION">
<phone:Pivot.ItemTemplate>
<DataTemplate>
<StackPanel Margin="12,17,0,28">
<TextBlock Name="PivotTextBlock" Text="{Binding Name}"/>
<ListBox ItemsSource="{Binding Criterions}">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Vertical" >
<TextBlock Name="ListTextBlock" Text="{Binding Name}"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</StackPanel>
</DataTemplate>
</phone:Pivot.ItemTemplate>
</phone:Pivot>
Binding for PivotTextBlock retrieves Name property from the PivotItemViewModel. Binding for ListTextBlock retrieves Name property from Criteria.
If criteria list the only in your application here is a good start

Here is another good way I found...
http://www.codeproject.com/Articles/47229/A-LINQ-Tutorial-WPF-Data-Binding-with-LINQ-to-SQL
Here is a code snippet:
<DataTemplate DataType="{x:Type LINQDemo:Category}">
<Border Name="border" BorderBrush="ForestGreen"
BorderThickness="1" Padding="5" Margin="5">
<StackPanel>
<TextBlock Text="{Binding Path=Name}"
FontWeight="Bold" FontSize="14"/>
<ListView ItemsSource="{Binding Path=Books}"
HorizontalContentAlignment="Stretch" BorderThickness="0" >
<ListView.ItemTemplate>
<DataTemplate>
<TextBlock>
<Hyperlink Click="LoadIndividualBook"
CommandParameter="{Binding}"
ToolTip="Display book details">
<TextBlock Text="{Binding Path=Title}"/></Hyperlink>
...

Binding event from nested control

I'm writing application in windows phone 8 and have problem with bindings.
Here is my xaml code with my page structure
<phone:Pivot Grid.Row="1" SelectedIndex="{Binding SelectedPivotElement, Mode=TwoWay}" x:Name="SymbolsPivot" Title="Symbols" ItemsSource="{Binding CategoriesWithSymbols}">
<phone:Pivot.HeaderTemplate>
<DataTemplate>
<ContentControl Content="{Binding Name}"/>
</DataTemplate>
</phone:Pivot.HeaderTemplate>
<phone:Pivot.ItemTemplate>
<DataTemplate>
<telerikData:RadJumpList x:Name="SymbolsControl" ItemsSource="{Binding Path=Symbols}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" >
<telerikData:RadJumpList.GroupDescriptors>
<data:PropertyGroupDescriptor PropertyName="GroupName"
SortMode="Ascending" />
</telerikData:RadJumpList.GroupDescriptors>
<telerikPrimitives:RadDataBoundListBox.VirtualizationStrategyDefinition>
<telerikPrimitives:WrapVirtualizationStrategyDefinition Orientation="Horizontal"/>
</telerikPrimitives:RadDataBoundListBox.VirtualizationStrategyDefinition>
<telerikData:RadJumpList.GroupHeaderTemplate>
<DataTemplate>
<Grid Margin="0,-8,0,12" Width="480">
<TextBlock FontWeight="Bold" FontSize="{StaticResource PhoneFontSizeMedium}" Text="{Binding}" TextWrapping="Wrap"/>
</Grid>
</DataTemplate>
</telerikData:RadJumpList.GroupHeaderTemplate>
<telerikData:RadJumpList.ItemTemplate>
<DataTemplate>
<Grid Width="300">
<TextBlock Text="{Binding Symbol}"/>
</Grid>
</DataTemplate>
</telerikData:RadJumpList.ItemTemplate>
</telerikData:RadJumpList>
</DataTemplate>
</phone:Pivot.ItemTemplate>
</phone:Pivot>
<i:Interaction.Triggers>
<i:EventTrigger EventName="ItemTap" SourceName="SymbolsControl" >
<cmd:EventToCommand Command="{Binding TapCommand}"
/>
</i:EventTrigger>
</i:Interaction.Triggers>
So I have pivot control and inside pivot I have a list.
And now the problem is that application binds item tap event to my relay command but this event/command is never called. Everything works if I move list outside pivot. How to fix that problem ?

WPF - Binding to a list within a Listview Item

So I am trying to bind to a list within a ListView item but I can't seem to get the binding correct. If some one could help me with the corrected binding that would be great!
Here is the source you will probably need:
//class that xaml is initially bound to
public partial class UploadMngPanel : Grid
{
....
//initial list to bind to
public ObservableCollection<FinishedAnimeCollection> UploadedAnime
{
get { return uploadedAnime; }
}
}
public class FinishedAnimeCollection
{
...
//second list to bind to
private ObservableCollection<AnimeEpisodeItem> _episodes = new ObservableCollection<AnimeEpisodeItem>();
public ObservableCollection<AnimeEpisodeItem> Episodes
{
get { return _episodes; }
}
}
public class AnimeEpisodeItem
{
public String Title { get; set; }
public DateTime TimeAdded { get; set; }
}
The XAML that I am trying to fix is below
<!-- First list binding here (this works)-->
<ListView Name="finishedView" ItemsSource="{Binding UploadedAnime}">
<ListView.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="AnimeExpander.xaml"/>
</ResourceDictionary.MergedDictionaries>
<DataTemplate x:Key="AnimeRow">
<DockPanel>
<!-- <Image Height="75" Width="Auto" Source="{Binding Image}" DockPanel.Dock="Left" VerticalAlignment="Top"/> -->
<Expander Template="{StaticResource AnimeExpanderControlTemplate}" Header="{Binding AnimeTitle}">
<Expander.ContentTemplate>
<DataTemplate>
<Border BorderBrush="Black" BorderThickness="1,1,1,1">
<!--Second list binding here (this doesn't work)-->
<ListView ItemsSource="{Binding Path=Episodes}">
<ListViewItem>
<DockPanel>
<TextBlock Text="{Binding Title}" DockPanel.Dock="Left" />
<!--<TextBlock Text="{Binding TimeAdded}" DockPanel.Dock="Right" />-->
</DockPanel>
</ListViewItem>
</ListView>
</Border>
</DataTemplate>
</Expander.ContentTemplate>
</Expander>
</DockPanel>
</DataTemplate>
</ResourceDictionary>
</ListView.Resources>
<ListView.View>
<GridView>
<GridViewColumn Width="700" Header="Anime" CellTemplate="{StaticResource AnimeRow}"/>
</GridView>
</ListView.View>
</ListView>
If you need any more source code please let me know. Thanks alot!

Ok so after a bit more fooling around I finally found out how to do it. Apparently this:
<ListView ItemsSource="{Binding Path=Episodes}">
<ListViewItem>
<DockPanel>
<TextBlock Text="{Binding Title}" DockPanel.Dock="Left" />
<!--<TextBlock Text="{Binding TimeAdded}" DockPanel.Dock="Right" />-->
</DockPanel>
</ListViewItem>
</ListView>
Is not valid even though it didn't through and error. When you specify an ItemSource for a list view you cannot use the ListViewItem tag within the ListView. So I reworked my code into the following which works:
<TabItem Header="Finished">
<TabItem.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="AnimeExpander.xaml"/>
</ResourceDictionary.MergedDictionaries>
<DataTemplate x:Key="EpisodeItem">
<DockPanel Margin="30,3">
<TextBlock Text="{Binding Title}" DockPanel.Dock="Left" />
<WrapPanel Margin="10,0" DockPanel.Dock="Right">
<TextBlock Text="Finished at: " />
<TextBlock Text="{Binding TimeAdded}" />
</WrapPanel>
</DockPanel>
</DataTemplate>
<DataTemplate x:Key="AnimeItem">
<DockPanel Margin="5,10">
<Image Height="75" Width="Auto" Source="{Binding ImagePath}" DockPanel.Dock="Left" VerticalAlignment="Top"/>
<Expander Template="{StaticResource AnimeExpanderControlTemplate}" >
<Expander.Header>
<TextBlock FontWeight="Bold" Text="{Binding AnimeTitle}" />
</Expander.Header>
<ListView ItemsSource="{Binding Episodes}" ItemTemplate="{StaticResource EpisodeItem}" BorderThickness="0,0,0,0" />
</Expander>
</DockPanel>
</DataTemplate>
</ResourceDictionary>
</TabItem.Resources>
<ListView Name="finishedView" ItemsSource="{Binding UploadedAnime, diagnostics:PresentationTraceSources.TraceLevel=High}" ItemTemplate="{StaticResource AnimeItem}" />
</TabItem>