WPF - WrapPanel doesn't update/redraw images content - c#

I am loading images from a folder, showing them in a wrappanel in a windows 'Large Icons'-kind of way, so the user can choose/mark which images he would like.
Currently I am reading the image filelocations, add them to a list of strings, and sets the ItemSource to an ItemsControl which looks like this:
<ItemsControl x:Name="ItemsControlPhotos" Margin="10" >
<ItemsControl.Template>
<ControlTemplate>
<WrapPanel FlowDirection="LeftToRight" IsItemsHost="true">
</WrapPanel>
</ControlTemplate>
</ItemsControl.Template>
<ItemsControl.ItemTemplate>
<DataTemplate >
<Image Source="{Binding}" Width="100" Height="100" />
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
That seems to work fine. But some of the images looks wierd, it is as if they are only drawn once.
Please refer to this video for an example.
I´ve tried to manually update the list with several different approaches:
ItemsControlPhotos.Items.Refresh();
ItemsControlPhotos.InvalidateArrange();
ItemsControlPhotos.InvalidateMeasure();
ItemsControlPhotos.InvalidateVisual();
But none of it has any effect, so I´m kind of lost.
Thank you very much for your help! :)
EDIT:
This is the full window markup:
<Window x:Class="Name.Space"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:System="clr-namespace:System;assembly=mscorlib"
Title="PhotoChooser"
WindowState="Maximized"
Width="1280"
>
<Window.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="../Styles/Styles.xaml" />
</ResourceDictionary.MergedDictionaries>
<System:Double x:Key="{x:Static SystemParameters.VerticalScrollBarWidthKey}">40</System:Double>
</ResourceDictionary>
</Window.Resources>
<Border BorderBrush="Black" BorderThickness="1" Background="White" Width="1280">
<DockPanel>
<Image Source="..\Images\BGTop.png" DockPanel.Dock="Top" Grid.Row="0" />
<Grid DockPanel.Dock="Top" Margin="0,-80,0,0" >
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<ScrollViewer>
<ItemsControl x:Name="ItemsControlPhotos" Margin="10" >
<ItemsControl.Template>
<ControlTemplate>
<WrapPanel FlowDirection="LeftToRight" IsItemsHost="true">
</WrapPanel>
</ControlTemplate>
</ItemsControl.Template>
<ItemsControl.ItemTemplate>
<DataTemplate >
<Image Source="{Binding}" Width="100" Height="100" />
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</ScrollViewer>
</Grid>
<Grid DockPanel.Dock="Bottom">
<Button Height="50" Width="200" Click="ButtonBase_OnClick">Add photos</Button>
<Image Source="..\Images\BGBottom.png" Grid.Row="99" VerticalAlignment="Bottom" Margin="0,0,0,0" />
</Grid>
</DockPanel>
</Border>
</Window>


I´ve didnt really figure the problem out, but I found a solution while working with the project.
Instead of loading the whole image, I would like to only load a thumbnail, to speed up the process. So I followed this link: http://blogs.msdn.com/b/dditweb/archive/2007/08/22/speeding-up-image-loading-in-wpf-using-thumbnails.aspx
And now the problem is gone.
Thank you for your contribution! :)

Related

Why does the text in .xaml not display in WPF .NET 4.8

I am a complete newbie to WPF, but this should not be something that I'm supposed to take too much time into.
Basically, I'd like to display userName by binding to the view:
<DataTemplate x:Key="UserCellTemplate">
<Grid Width="190">
<TextBlock HorizontalAlignment="Center" Text="{Binding userName}"/>
<TextBlock HorizontalAlignment="Center" Text="123456"/>
</Grid>
</DataTemplate>
But somehow, this part does not work at all, even when I tested with random text "123456" to be displayed, but it does not display to the view - without showing any error or warning.
<DataTemplate x:Key="UserHeaderTemplate">
<Grid Width="190">
<TextBlock HorizontalAlignment="Center" Text="User"/>
</Grid>
</DataTemplate>
This code however seems to work perfectly fine, using the same exact logic.
Here is the full code, I also tested to see if "123456" displays after removing the Binding part but still the same. I'd greatly appreciate if anyone can point out my issue and help me fix this, thank you
<Window x:Class="ChattingClient.UserListWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:ChattingClient"
mc:Ignorable="d"
Title="UserListWindow" Height="400" Width="250" Background="#BCBCBC">
<Grid Margin="10,10,10,0">
<Grid.RowDefinitions>
<RowDefinition Height="10*"></RowDefinition>
<RowDefinition Height="1*"></RowDefinition>
</Grid.RowDefinitions>
<ListView x:Name="UserListView" Grid.Row="0" BorderBrush="White">
<ListView.Resources>
<DataTemplate x:Key="UserCellTemplate">
<Grid Width="190">
<TextBlock HorizontalAlignment="Center"
Text="{Binding userName}"/>
<TextBlock HorizontalAlignment="Center"
Text="123456"/>
</Grid>
</DataTemplate>
<DataTemplate x:Key="UserHeaderTemplate">
<Grid Width="190">
<TextBlock HorizontalAlignment="Center" Text="User"/>
</Grid>
</DataTemplate>
</ListView.Resources>
<ListView.View>
<GridView>
<GridViewColumn
HeaderTemplate="{StaticResource UserHeaderTemplate}"
CellTemplate="{DynamicResource UserCellTemplate}"/>
</GridView>
</ListView.View>
</ListView>
<Grid Grid.Row="1" Margin="0,5,0,5">
<Button x:Name="Chatting_btn" Click="Chatting_btn_Click"></Button>
</Grid>
</Grid>
</Window>

GridExtra Child Element Z-index

I have used grid extra to design individual responsive components in my WPF application. I have a View like following:
<UserControl x:Class="..."
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"
xmlns:local="clr-namespace:..."
mc:Ignorable="d"
xmlns:ge="clr-namespace:SourceChord.GridExtra;assembly=GridExtra.Wpf">
<UserControl.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="...">
</ResourceDictionary>
<ResourceDictionary Source="...">
</ResourceDictionary>
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</UserControl.Resources>
<UserControl.Width>
<StaticResource ResourceKey="ApplicationWidth" />
</UserControl.Width>
<Grid Style="{StaticResource SelectContainer}"
ge:GridEx.RowDefinition="1*, 3*"
ge:GridEx.TemplateArea="Message/ Companies/">
<Grid ge:GridEx.AreaName="Message"
ge:GridEx.RowDefinition="*"
ge:GridEx.ColumnDefinition="*,*"
ge:GridEx.TemplateArea="L1 L2/"
>
<TextBlock Text="{Binding Path=MessageL1Text}" Style="{StaticResource MessageTextStyle}" ge:GridEx.AreaName="L1"/>
<TextBlock Text="{Binding Path=MessageL2Text}" Style="{StaticResource MessageTextUrduStyle}" ge:GridEx.AreaName="L2"/>
</Grid>
<Grid ge:GridEx.AreaName="Companies"
ge:GridEx.RowDefinition="*"
ge:GridEx.ColumnDefinition="1*,1.5*,1.5*,1.5*,1.5*,1.5*,1.5*,1*"
ge:GridEx.TemplateArea="MarginLeft Company1 Company2 Company3 Company4 Company5 More MarginRight/">
<Grid ge:GridEx.AreaName="MarginLeft"></Grid>
<Grid ge:GridEx.AreaName="MarginRight"></Grid>
<Grid ge:GridEx.AreaName="Company1" Style="{StaticResource CompanyButtonOneStyle}">
<Grid.Resources>
<ImageBrush x:Key="AddButtonImageBrush" ImageSource="{Binding Path=CompanyOne.ButtonImagePath}" Stretch="Uniform"/>
</Grid.Resources>
<Button Command="{Binding Path=CompanyOneClick}" Height="Auto" Width="Auto" Background="{StaticResource AddButtonImageBrush}" Style="{StaticResource CompanyButton}" Visibility="{Binding Path=CompanyOne.IsVisible}" IsEnabled="{Binding Path=CompanyOne.IsActive}">
</Button>
</Grid>
<Grid ge:GridEx.AreaName="Company2" Style="{StaticResource CompanyButtonTwoStyle}">
<Grid.Resources>
<ImageBrush x:Key="AddButtonImageBrush" ImageSource="{Binding Path=CompanyTwo.ButtonImagePath}" Stretch="Uniform"/>
</Grid.Resources>
<Button Command="{Binding Path=CompanyTwoClick}" Height="Auto" Width="Auto" Background="{StaticResource AddButtonImageBrush}" Style="{StaticResource CompanyButton}" Visibility="{Binding Path=CompanyTwo.IsVisible}" IsEnabled="{Binding Path=CompanyTwo.IsActive}">
</Button>
</Grid>
<Grid ge:GridEx.AreaName="Company3" Style="{StaticResource CompanyButtonThreeStyle}">
<Grid.Resources>
<ImageBrush x:Key="AddButtonImageBrush" ImageSource="{Binding Path=CompanyThree.ButtonImagePath}" Stretch="Uniform"/>
</Grid.Resources>
<Button Command="{Binding Path=CompanyThreeClick}" Height="Auto" Width="Auto" Background="{StaticResource AddButtonImageBrush}" Style="{StaticResource CompanyButton}" Visibility="{Binding Path=CompanyThree.IsVisible}" IsEnabled="{Binding Path=CompanyThree.IsActive}">
</Button>
</Grid>
<Grid ge:GridEx.AreaName="Company4" Style="{StaticResource CompanyButtonFourStyle}">
<Grid.Resources>
<ImageBrush x:Key="AddButtonImageBrush" ImageSource="{Binding Path=CompanyFour.ButtonImagePath}" Stretch="Uniform"/>
</Grid.Resources>
<Button Command="{Binding Path=CompanyFourClick}" Height="Auto" Width="Auto" Background="{StaticResource AddButtonImageBrush}" Style="{StaticResource CompanyButton}" Visibility="{Binding Path=CompanyFour.IsVisible}" IsEnabled="{Binding Path=CompanyFour.IsActive}">
</Button>
</Grid>
<Grid ge:GridEx.AreaName="Company5" Style="{StaticResource CompanyButtonFiveStyle}">
<Grid.Resources>
<ImageBrush x:Key="AddButtonImageBrush" ImageSource="{Binding Path=CompanyFive.ButtonImagePath}" Stretch="Uniform"/>
</Grid.Resources>
<Button Command="{Binding Path=CompanyFiveClick}" Height="Auto" Width="Auto" Background="{StaticResource AddButtonImageBrush}" Style="{StaticResource CompanyButton}" Visibility="{Binding Path=CompanyFive.IsVisible}" IsEnabled="{Binding Path=CompanyFive.IsActive}">
</Button>
</Grid>
<Grid ge:GridEx.AreaName="More" Style="{StaticResource MoreButtonStyle}">
<Grid.Resources>
<ImageBrush x:Key="AddButtonImageBrush" ImageSource="{Binding Path=More.ButtonImagePath}" Stretch="Uniform"/>
</Grid.Resources>
<Button Command="{Binding Path=MoreClick}" Height="Auto" Width="Auto" Background="{StaticResource AddButtonImageBrush}" Style="{StaticResource CompanyButton}" Visibility="{Binding Path=More.IsVisible}" IsEnabled="{Binding Path=More.IsActive}">
</Button>
</Grid>
</Grid>
</Grid>
Next what I require was to bring a disable panel to flood over this user control disabling all the controls and graying out the UI like:
<UserControl x:Class="..."
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"
xmlns:local="clr-namespace:..."
mc:Ignorable="d"
xmlns:ge="clr-namespace:SourceChord.GridExtra;assembly=GridExtra.Wpf">
<UserControl.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="...">
</ResourceDictionary>
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</UserControl.Resources>
<Grid Style="{StaticResource DisableGridStyle}" Opacity="0.8" Background="Gray">
</Grid>
As you can see next I wrap both in a container Panel and will keep the disabled control hidden till I want it to appear on top of the actual panel using Grid and Grid.Zindex in somewhat manner like explained in this answer.
I have tried it and it works like a charm.
So now let's move on to my actual requirement which is to bring up one of the child component of the actual panel say the following on top while keeping the others behind the disabled panel;
<Grid ge:GridEx.AreaName="Company1" Style="{StaticResource CompanyButtonOneStyle}">
<Grid.Resources>
<ImageBrush x:Key="AddButtonImageBrush" ImageSource="{Binding Path=CompanyOne.ButtonImagePath}" Stretch="Uniform"/>
</Grid.Resources>
<Button Command="{Binding Path=CompanyOneClick}" Height="Auto" Width="Auto" Background="{StaticResource AddButtonImageBrush}" Style="{StaticResource CompanyButton}" Visibility="{Binding Path=CompanyOne.IsVisible}" IsEnabled="{Binding Path=CompanyOne.IsActive}">
</Button>
</Grid>
I tried to do it by tweaking the Z-index for the said component but it did not work for me. I do not know if this is being caused by grid extra but using grid extra is a constraint that I cannot let go. Thus, what I need is a solution to get the required results using grid extra. Thanks in advance.
Note details about GridExtra can be viewed here.

Z Index is used to control the ordering of the elements that are at the same level in your components heirarchy. As per you state that:
As you can see next I wrap both in a container Panel and will keep the disabled control hidden till I want it to appear on top of the actual panel using Grid and Grid.Zindex
I believe in doing so, your required component is not at the same level as your disable panel and it would not be possible to bring it up using the Z-Index.
One alternate solution that I can think of is to have multiple disable panels with same properties and use one at the same sibling level at the component that you wish to send back or bring in front.
As an example consider the following code:
<Window x:Class="ZindexForVaryingChildren.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:ZindexForVaryingChildren"
xmlns:ge="clr-namespace:SourceChord.GridExtra;assembly=GridExtra.Wpf"
mc:Ignorable="d"
Title="MainWindow" Height="350" Width="525">
<Grid ge:GridEx.RowDefinition="*,*"
ge:GridEx.TemplateArea="R1/ R2/" Opacity="0.8" Background="Red">
<TextBlock Opacity="0.8" Background="Red" Grid.ZIndex="2" ge:GridEx.Area="0,0,2,2" HorizontalAlignment="Stretch"/>
<Grid ge:GridEx.AreaName="R1" Grid.ZIndex="1">
<TextBlock TextWrapping="Wrap" Text="Hello" FontSize="40"/>
</Grid>
<Grid ge:GridEx.AreaName="R2" Grid.ZIndex="3">
<TextBlock TextWrapping="Wrap" Text="Hello" FontSize="40"/>
</Grid>
</Grid>
Here you can see even using the GridExtra I have tried to illustrate how you can bring the R2 to front when pushing R1 to back. Also using the TextBlock as the disabler panel while you can use the component you wish.
The above will yield output as follows:
Also note this is one of the suggested solution you can totally work out a strategy of your own but have to keep in mind that Z-Index only works for siblings.

I ended up using my disable component as a sibling to the hierarchy as:
<UserControl x:Class="..."
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"
xmlns:local="clr-namespace:..."
mc:Ignorable="d"
xmlns:ge="clr-namespace:SourceChord.GridExtra;assembly=GridExtra.Wpf">
<UserControl.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary Source="...">
</ResourceDictionary>
<ResourceDictionary Source="...">
</ResourceDictionary>
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</UserControl.Resources>
<UserControl.Width>
<StaticResource ResourceKey="ApplicationWidth" />
</UserControl.Width>
<Grid Style="{StaticResource NetworkSelectContainer}"
ge:GridEx.RowDefinition="1*, 3*"
ge:GridEx.TemplateArea="Message/ Companies/">
<Grid ge:GridEx.AreaName="Message"
ge:GridEx.RowDefinition="*"
ge:GridEx.ColumnDefinition="*,*"
ge:GridEx.TemplateArea="L1 L2/"
>
<local:DisablePanel Panel.ZIndex="3" ge:GridEx.Area="0,0,2,2" x:Name="DisableMessage"></local:DisablePanel>
<TextBlock Text="{Binding Path=MessageText}" Style="{StaticResource MessageTextStyle}" ge:GridEx.AreaName="L1"/>
<TextBlock Text="{Binding Path=MessageUrduText}" Style="{StaticResource MessageTextStyle}" ge:GridEx.AreaName="L2"/>
</Grid>
<Grid ge:GridEx.AreaName="Companies"
ge:GridEx.RowDefinition="*"
ge:GridEx.ColumnDefinition="1*,1.5*,1.5*,1.5*,1.5*,1.5*,1.5*,1*"
ge:GridEx.TemplateArea="MarginLeft Company1 Company2 Company3 Company4 Company5 More MarginRight/">
<local:DisablePanel ge:GridEx.Area="0,0,1,8" Panel.ZIndex="3" x:Name="DisableCompany"></local:DisablePanel>
<Grid ge:GridEx.AreaName="MarginLeft"></Grid>
<Grid ge:GridEx.AreaName="MarginRight"></Grid>
<Grid ge:GridEx.AreaName="Company1" Style="{StaticResource CompanyButtonOneStyle}">
<Grid.Resources>
<ImageBrush x:Key="AddButtonImageBrush" ImageSource="{Binding Path=CompanyOne.ButtonImagePath}" Stretch="Uniform"/>
</Grid.Resources>
<Button Command="{Binding Path=CompanyOneClick}" Height="Auto" Width="Auto" Background="{StaticResource AddButtonImageBrush}" Style="{StaticResource CompanyButton}" Visibility="{Binding Path=CompanyOne.IsVisible}" IsEnabled="{Binding Path=CompanyOne.IsActive}">
</Button>
</Grid>
<Grid ge:GridEx.AreaName="Company2" Style="{StaticResource CompanyButtonTwoStyle}">
<Grid.Resources>
<ImageBrush x:Key="AddButtonImageBrush" ImageSource="{Binding Path=CompanyTwo.ButtonImagePath}" Stretch="Uniform"/>
</Grid.Resources>
<Button Command="{Binding Path=CompanyTwoClick}" Height="Auto" Width="Auto" Background="{StaticResource AddButtonImageBrush}" Style="{StaticResource CompanyButton}" Visibility="{Binding Path=CompanyTwo.IsVisible}" IsEnabled="{Binding Path=CompanyTwo.IsActive}">
</Button>
</Grid>
<Grid ge:GridEx.AreaName="Company3" Style="{StaticResource CompanyButtonThreeStyle}">
<Grid.Resources>
<ImageBrush x:Key="AddButtonImageBrush" ImageSource="{Binding Path=CompanyThree.ButtonImagePath}" Stretch="Uniform"/>
</Grid.Resources>
<Button Command="{Binding Path=CompanyThreeClick}" Height="Auto" Width="Auto" Background="{StaticResource AddButtonImageBrush}" Style="{StaticResource CompanyButton}" Visibility="{Binding Path=CompanyThree.IsVisible}" IsEnabled="{Binding Path=CompanyThree.IsActive}">
</Button>
</Grid>
<Grid ge:GridEx.AreaName="Company4" Style="{StaticResource CompanyButtonFourStyle}">
<Grid.Resources>
<ImageBrush x:Key="AddButtonImageBrush" ImageSource="{Binding Path=CompanyFour.ButtonImagePath}" Stretch="Uniform"/>
</Grid.Resources>
<Button Command="{Binding Path=CompanyFourClick}" Height="Auto" Width="Auto" Background="{StaticResource AddButtonImageBrush}" Style="{StaticResource CompanyButton}" Visibility="{Binding Path=CompanyFour.IsVisible}" IsEnabled="{Binding Path=CompanyFour.IsActive}">
</Button>
</Grid>
<Grid ge:GridEx.AreaName="Company5" Style="{StaticResource CompanyButtonFiveStyle}">
<Grid.Resources>
<ImageBrush x:Key="AddButtonImageBrush" ImageSource="{Binding Path=CompanyFive.ButtonImagePath}" Stretch="Uniform"/>
</Grid.Resources>
<Button Command="{Binding Path=CompanyFiveClick}" Height="Auto" Width="Auto" Background="{StaticResource AddButtonImageBrush}" Style="{StaticResource CompanyButton}" Visibility="{Binding Path=CompanyFive.IsVisible}" IsEnabled="{Binding Path=CompanyFive.IsActive}">
</Button>
</Grid>
<Grid ge:GridEx.AreaName="More" Style="{StaticResource MoreButtonStyle}">
<Grid.Resources>
<ImageBrush x:Key="AddButtonImageBrush" ImageSource="{Binding Path=More.ButtonImagePath}" Stretch="Uniform"/>
</Grid.Resources>
<Button Command="{Binding Path=MoreClick}" Height="Auto" Width="Auto" Background="{StaticResource AddButtonImageBrush}" Style="{StaticResource CompanyButton}" Visibility="{Binding Path=More.IsVisible}" IsEnabled="{Binding Path=More.IsActive}">
</Button>
</Grid>
</Grid>
</Grid>
Although using much of the approach in the above answer yet adding it for clarifying idea to others.

Correct usage of MouseDragElementBehavior

In my MainWindow I have defined a region, that I am injecting my UserControls into (using Prism, but it doesn't matter). My control should be resizeable (it works perfectly) and moveable. To drag and move my user control I am using Blend's MouseDragElementBehavior. Problem is, that although my control moves, when I resize MainWindow it gets cut :
When I am not moving my control everything works, as expected, when I resize MainWindow scrollBar shows up:
But when I move my user control to the bottom of the MainWindow, the ScrollBar is not showing up like it does't know, that my control has been moved:
Important: The ScrollBar is showing up in both scenarios at exact same time, though when I move my user control down it should appear much more sonner, when I reach the bounds of the user control. On the picture below you can see the moment when the ScrollBar is showing up after I draged my control down. It appeared too late, control gets cut.
It's hard to explain, let me know if you understood me correctly.
My code:
<Window x:Class="ViewInjection.Views.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:prism="http://prismlibrary.com/"
Title="MainWindow">
<ScrollViewer HorizontalScrollBarVisibility="Auto"
VerticalScrollBarVisibility="Auto">
<Grid >
<Grid.RowDefinitions>
<RowDefinition Height="auto"/>
<RowDefinition Height="*" ScrollViewer.CanContentScroll="True" ScrollViewer.IsDeferredScrollingEnabled="True"/>
</Grid.RowDefinitions>
<Button Grid.Row="0" Click="Button_Click">Add View</Button>
<ItemsControl Grid.Row="1" prism:RegionManager.RegionName="ContentRegion" >
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<Grid >
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
</Grid>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
</Grid>
</ScrollViewer>
</Window>
UserControl:
<UserControl
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"
xmlns:local="clr-namespace:ViewInjection.Views"
xmlns:i="http://schemas.microsoft.com/expression/2010/interactivity" xmlns:ei="http://schemas.microsoft.com/expression/2010/interactions" x:Class="ViewInjection.Views.ViewA"
mc:Ignorable="d">
<Border x:Name="Border" HorizontalAlignment="Center" VerticalAlignment="Center" BorderBrush="#FF626161" BorderThickness="2" CornerRadius="3" MinHeight="200" MinWidth="200">
<i:Interaction.Behaviors>
<ei:MouseDragElementBehavior ConstrainToParentBounds="true"/>
</i:Interaction.Behaviors>
<DockPanel x:Name="sizableContent" Background="LightGray" Focusable="False" LastChildFill="True" MinHeight="300" MinWidth="300">
<DockPanel DockPanel.Dock="Bottom" >
<!--Make user control resizeable-->
<Thumb DockPanel.Dock="Right" VerticalAlignment="Bottom" Margin="0,0,1,1"
DragDelta="OnResizeThumbDragDelta"
DragStarted="OnResizeThumbDragStarted"
DragCompleted="OnResizeThumbDragCompleted">
<Thumb.Style>
<Style TargetType="{x:Type Thumb}">
<Style.Setters>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<Grid x:Name="resizeVisual" DockPanel.Dock="Right" VerticalAlignment="Bottom" >
<Line X1="6" Y1="18" X2="18" Y2="6" Stroke="DarkGray" StrokeThickness="1.5"/>
<Line X1="10" Y1="18" X2="18" Y2="10" Stroke="DarkGray" StrokeThickness="1.5"/>
<Line X1="14" Y1="18" X2="18" Y2="14" Stroke="DarkGray" StrokeThickness="1.5"/>
<Grid.Style>
<Style TargetType="{x:Type Grid}">
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Cursor" Value="SizeNWSE"/>
</Trigger>
</Style.Triggers>
</Style>
</Grid.Style>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style.Setters>
</Style>
</Thumb.Style>
</Thumb>
<StackPanel Orientation="Horizontal" HorizontalAlignment="Stretch">
<Button Margin="12" Width="75" TabIndex="1" Content="Ok"/>
</StackPanel>
</DockPanel>
<StackPanel HorizontalAlignment="Center" Margin="16,16,16,4">
<TextBlock Text="My UserControl"/>
</StackPanel>
</DockPanel>
</Border>
</UserControl>
P.S.
I am using items control to have multiple controls within that region. I am using Grid as a template, because I want controls to overlap each other.

TextBlock not Wrapping Silverlight application

I have a TextBlock that is not wrapping and thinks it has an infinite width. I have tried to bind it to the actualWidth of the Grid and/or UserControl, but both widths come as more than 8000. I have tried disabling the HorizontalScrollBarVisibility in the parent view, but that does not work either. I have also read all question in SO that are related to mine and none of the suggestions seems to work.
<UserControl x:Class="Civica.UI.CurrentUserMenu.Views.ClassName"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
d:DesignHeight="300"
d:DesignWidth="1200">
<UserControl.Resources>
<ResourceDictionary>
<SolidColorBrush x:Key="SeparatorBrush" Color="#66848484" />
</ResourceDictionary>
</UserControl.Resources>
<Grid>
<ScrollViewer x:Name="Viewer" BorderThickness="0" Grid.Column="1" Grid.Row="1" Margin="0,0,0,0" Padding="0"
VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Disabled"
HorizontalAlignment="Stretch" VerticalAlignment="Stretch"
HorizontalContentAlignment="Stretch" VerticalContentAlignment="Stretch">
<Grid Background="White" HorizontalAlignment="Left" x:Name="UserControl">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Border BorderThickness="0,0,0,1" BorderBrush="{StaticResource SeparatorBrush}" Grid.Row="0">
<TextBlock Text="Text" Margin="0" FontWeight="Black" />
</Border>
<TextBlock Margin="5" Text="{Binding TextProperty}" TextWrapping="Wrap" Grid.Row="1"/>
</Grid>
</ScrollViewer>
</Grid>
</UserControl>
EDIT:
This is the code for the parent view:
<UserControl x:Class="Civica.UI.Ribbon.Views.ViewName"
d:DataContext="{d:DesignInstance Type=ViewMOdelName}"
d:DesignHeight="120"
d:DesignWidth="600"
mc:Ignorable="d">
<Grid ScrollViewer.HorizontalScrollBarVisibility="Disabled">
<telerik:RadRibbonView x:Name="RadRibbon"
Title="Title"
ApplicationButtonContent="Content"
ApplicationMenu="{Binding PropertyName}"
ApplicationName="{Binding PropertyName}"
MinimizeButtonVisibility="Visible"
SelectionChanged="SelectionChanged" ScrollViewer.HorizontalScrollBarVisibility="Disabled"/>
</Grid>
</UserControl>
It is the RadRibbonView that contains the first view.

The issue was a style that was being applied by the parent view and specifically a Telerik object. The solution was to find that style, decompile it and copy is to one of our files and change a scrollviewer to a border.

Overlapping Items in WPF ItemsControl

I am having a problem with DataTemplates used in a WPF ItemsControl. I want to be able to "bring forward" any of the items in the list so that they are on top of everything else in the list, but haven't had any luck.
Here's a simple example that illustrates the problem. What I want to see is achieved in the example using a WrapPanel and a bunch of colored blocks:
The first block overlaps the second. Good. When I try to do the same thing with the ItemsControl, the first block falls underneath the second, despite its ZIndex:
How can I make the first block overlap all the others in the ItemsControl?
From my understanding of the ZIndex property, I am assuming that I need to set the ZIndex higher up in the Visual Tree than the Border inside of the DataTemplate, but don't know how or where to do that.
XAML:
<Window x:Class="WpfApplication1.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WpfApplication1"
xmlns:sys="clr-namespace:System;assembly=mscorlib"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<local:MainViewModel x:Key="mainViewModel" />
<DataTemplate DataType="{x:Type local:FireFighter}">
<Border Background="Pink" Padding="8" Panel.ZIndex="10" Margin="4">
<Border.RenderTransform>
<TranslateTransform X="18" Y="4"/>
</Border.RenderTransform>
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding FirstName}"/>
</StackPanel>
</Border>
</DataTemplate>
<DataTemplate DataType="{x:Type local:PoliceOfficer}">
<Border Background="Orange" Padding="8" Margin="4">
<StackPanel Orientation="Horizontal">
<TextBlock Text="{Binding FirstName}"/>
</StackPanel>
</Border>
</DataTemplate>
</Window.Resources>
<StackPanel>
<ItemsControl DataContext="{StaticResource mainViewModel}"
ItemsSource="{Binding People}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
<WrapPanel Margin="0,10,0,0">
<Border Background="Blue" Width="30" Height="30" Margin="4" Panel.ZIndex="10">
<Border.RenderTransform>
<TranslateTransform X="18" Y="4"/>
</Border.RenderTransform>
</Border>
<Border Background="Green" Width="30" Height="30" Margin="4"/>
<Border Background="Green" Width="30" Height="30" Margin="4"/>
</WrapPanel>
</StackPanel>

I found an answer that will work for my situation right here:
https://stackoverflow.com/a/9687758/4912801
It turns out that setting the Panel.ZIndex property wasn't working because WPF inserts a ContentPresenter element for each item in the ItemsControl. In my application, I was trying to get whatever element the mouse is hovering over to come to the front, so applying a style to all ContentPresenters in the ItemsControl allowed me to bring them to the front when the mouse was over them.

I was looking for something similar and this is what did it for me. Use a UniformGrid as your ItemsPanelTemplate, then change the margins on your DataTemplate to overlap as much as you want.
<Grid Grid.Row="1"
Grid.ColumnSpan="2">
<Grid.Resources>
<local:PointsToPathConverter x:Key="pointsToPathConverter"/>
</Grid.Resources>
<Image
Source="{Binding Bmp}"
Stretch="Fill"
VerticalAlignment="Stretch"
HorizontalAlignment="Stretch" />
<ItemsControl ItemsSource="{Binding AllTraceLines}"
VerticalAlignment="Stretch"
>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<UniformGrid Columns="1"/>
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
<ItemsControl.ItemTemplate>
<DataTemplate>
<Path Margin="0,-20,0,-20" Data="{Binding Converter={StaticResource pointsToPathConverter}}" Stroke="Red" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" Stretch="Fill"/>
</DataTemplate>
</ItemsControl.ItemTemplate>
</ItemsControl>
</Grid>

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