xaml(wpf) How to address a control from my customwindow template? - c#

I've created a customwindow template by redefining it, and inheriting from window. This template resides in a separate class library, and i build a dll and reference it from my main project.
This is a part of code from custom window xaml:
<!-- Window style -->
<Style TargetType="{x:Type local:CustomWindow}">
<Setter Property="WindowStyle" Value="None"/>
<Setter Property="ResizeMode" Value="NoResize"/>
<Setter Property="Background" Value="White"/>
<Setter Property="AllowsTransparency" Value="True"/>
<Setter Property="Opacity" Value="1" />
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="BorderBrush" Value="Silver"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type local:CustomWindow}">
<Border BorderThickness="{TemplateBinding BorderThickness}"
BorderBrush="{TemplateBinding BorderBrush}">
<Grid>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="auto"/>
<RowDefinition />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<Rectangle x:Name="moveRectangle" Fill="#24282A"
Grid.Row="0" Grid.Column="1"/>
<Label x:Name="WindowName" Background="#24282A" Foreground="White" Grid.Row="0" Grid.Column="0"/>
<StackPanel Grid.Row="0" Grid.Column="2" Orientation="Horizontal" Background="#24282A">
<Button x:Name="minimizeButton" Style="{StaticResource WindowButtonStyle}"
Content="0" />
<Button x:Name="restoreButton" Style="{StaticResource WindowButtonStyle}"
Content="1" />
<Button x:Name="closeButton" Style="{StaticResource WindowButtonStyle}"
Content="r" />
</StackPanel>
<Grid Background="#24282A" Opacity="0.9"
Grid.Row="1" Grid.ColumnSpan="3" Margin="5,0,5,5">
<AdornerDecorator>
<ContentPresenter/>
</AdornerDecorator>
</Grid>
</Grid>
<Grid x:Name="resizeGrid">
<Rectangle
Stroke="{x:Null}"
Fill="#24282A"
VerticalAlignment="Top"
Height="5"
x:Name="top"
Margin="5,0,5,0" />
<Rectangle
Stroke="{x:Null}"
Fill="#24282A"
x:Name="bottom"
Height="5"
VerticalAlignment="Bottom"
Margin="5,0,5,0" />
<Rectangle
Stroke="{x:Null}"
Fill="#24282A"
HorizontalAlignment="Left"
Margin="0,5,0,5"
Width="5"
x:Name="left"/>
<Rectangle
Stroke="{x:Null}"
Fill="#24282A"
Margin="0,5,0,5"
Width="5"
HorizontalAlignment="Right"
x:Name="right" />
<Rectangle
Stroke="{x:Null}"
Fill="#24282A"
HorizontalAlignment="Left"
VerticalAlignment="Bottom"
Width="5"
Height="5"
x:Name="bottomLeft" />
<Rectangle
Stroke="{x:Null}"
Fill="#24282A"
VerticalAlignment="Bottom"
Height="5"
Width="5"
HorizontalAlignment="Right"
x:Name="bottomRight" />
<Rectangle
Stroke="{x:Null}"
Fill="#24282A"
HorizontalAlignment="Right"
Width="5"
Height="5"
VerticalAlignment="Top"
x:Name="topRight" />
<Rectangle
Stroke="{x:Null}"
Fill="#24282A"
HorizontalAlignment="Left"
Width="6"
VerticalAlignment="Top"
Height="5"
x:Name="topLeft" />
</Grid>
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
As you can see, there is a label called "WindowName". i want this label to be kind of Title bar in my custom window, and i wanna call it's property content from my main wpf application which inherits from this custom window. Everything works ok, except i have no idea how i should call this label to set it's content. Any help would be appreciated

You would want to bind the content of that Label to the Title property of the base Window class since the base class already has a dependency property that you can just reuse. All you will need to do is update the xaml for you label component as below:
<Label x:Name="WindowName" Content={TemplateBinding Title} Background="#24282A" Foreground="White" Grid.Row="0" Grid.Column="0"/>
You could also override OnApplyTemplate in your CustomWindow and use a method like FindName to get the Label using its name and then updating it through a direct reference, but the binding way is much cleaner so I wouldn't consider that route although I wanted to at least mention it.

Related

Strange layout issue MVVM .Net 4.7.2 App controls disappear

I’m building a MVVM app using .Net 4.7.2 that works like a wizard (based on https://www.codeproject.com/KB/WPF/InternationalizedWizard.aspx?display=Print), so no additional frameworks, just the RelayCommand class, a MainWindow.cs that hosts the Main view (the view that has navigation items of the wizard on the left side, and the right side area that hosts the subviews which display based on the stage of the wizard).
Mi issue is that one of my users is experiencing a very strange behaviour with the controls. This is a sample photo of what the application should look like:
And this is a sample photo of what happens to the user. Notice that the image on the bottom left disappears, the bar on the bottom left also disappears, the heading and top text have moved up and clipped inside the window, and the rest of the content in the right side disappears.
Similar to the base InternationalizedWizard App I placed the controls in a grid that has horizontal + vertical alignment set to stretch. The
<Border Background="White" Grid.Column="1" Grid.Row="0">
<ScrollViewer>
<HeaderedContentControl Content="{Binding Path=CurrentPage}" Header="{Binding Path=CurrentPage.DisplayName}" />
</ScrollViewer>
</Border>
I applied this style to the HeaderedContentControl:
<Style TargetType="{x:Type HeaderedContentControl}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type HeaderedContentControl}">
<StackPanel Margin="2,0">
<Grid Margin="1,1,1,12" RenderTransformOrigin="0.5,0.5">
<Rectangle Fill="{DynamicResource {x:Static SystemColors.AppWorkspaceBrushKey}}" Height="3" Margin="10,-4" Opacity="0.6" RadiusX="8" RadiusY="8" VerticalAlignment="Bottom" />
<ContentPresenter ContentSource="Header" TextBlock.FontSize="22" TextBlock.FontWeight="DemiBold" TextBlock.Foreground="Black" HorizontalAlignment="Center" VerticalAlignment="Center" OpacityMask="Black" />
<Grid.Effect>
<DropShadowEffect Opacity="0.1" />
</Grid.Effect>
<Grid.RenderTransform>
<RotateTransform Angle="0" />
</Grid.RenderTransform>
</Grid>
<Grid>
<Rectangle Fill="{TemplateBinding Background}" />
<ContentPresenter ContentSource="Content" />
</Grid>
</StackPanel>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
The scrollviewer only scrolls up and down if the content is large, but in this case the content should fit fine so as expected the user won't see the scrollviewer.
The image from the bottom left that strangely disappear was placed in the column 0, row 0 of the grid a custom margin so it remains in that area:
<Image Grid.Column="0" Grid.Row="0" Source="..\Assets\SplashLogo.png" HorizontalAlignment="Center" VerticalAlignment="Bottom" Stretch="None" Margin="20,20,20,20"/>
The first page (e.g. Welcome) that displays has another grid with two
<Grid>
<Grid.RowDefinitions>
<RowDefinition MinHeight="30" MaxHeight="60"/>
<RowDefinition Height="*" MinHeight="200"/>
</Grid.RowDefinitions>
<TextBlock Grid.Row="0" Text="{x:Static res:Strings.SomeText_Description}" FontSize="15" FontWeight="Light" Margin="20,0,20,0" TextWrapping="Wrap" />
<StackPanel Grid.Row="1" Orientation="Horizontal" VerticalAlignment="Center" HorizontalAlignment="Center">
<Label Content="{x:Static res:Strings.WelcomeView_SomeText}" FontSize="15" FontWeight="Light" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="20,0,20,0" />
<TextBox Text="{Binding Path=SomeInput, UpdateSourceTrigger=PropertyChanged}" Height="25" Width="200" FontSize="15" FontWeight="Light" HorizontalAlignment="Left">
<TextBox.InputBindings>
<KeyBinding Key="Enter" Command="{Binding MoveNextFromWelcomeCommand}" CommandParameter="{Binding Path=Text, RelativeSource={RelativeSource AncestorType={x:Type TextBox}}}" />
</TextBox.InputBindings>
</TextBox>
</StackPanel>
</Grid>
But the contents of the stack panel completely disappear of view.
Finally, the bottom area of the main view is created in a border like this one, which also completely disappears from view:
<Border Grid.Column="0" Grid.Row="1" Background="LightGray" Grid.ColumnSpan="2">
<Grid >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<TextBlock Grid.Column="0" Grid.Row="1" Grid.ColumnSpan="5" Margin="4" FontSize="15" Text="{Binding Path=ReportStatus}" VerticalAlignment="Center" Visibility="{Binding Path=ShowReportStatus}" />
<!-- NAVIGATION BUTTONS -->
<Grid Grid.Column="2" Grid.Row="0" Grid.IsSharedSizeScope="True" HorizontalAlignment="Right" >
<Grid.ColumnDefinitions>
<ColumnDefinition SharedSizeGroup="Buttons" />
<ColumnDefinition SharedSizeGroup="Buttons" />
<ColumnDefinition SharedSizeGroup="Buttons" />
<ColumnDefinition SharedSizeGroup="Buttons" />
</Grid.ColumnDefinitions>
<Button Grid.Column="1" Grid.Row="0" Command="{Binding Path=MovePreviousCommand}" Style="{StaticResource movePreviousButtonStyle}" />
<Button Grid.Column="2" Grid.Row="0" Command="{Binding Path=MoveNextCommand}" Style="{StaticResource moveNextButtonStyle}" />
<Button Grid.Column="3" Grid.Row="0" Command="{Binding Path=CancelCommand}" Style="{StaticResource cancelButtonStyle}" />
</Grid>
</Grid>
</Border>
I initially thought there could be an issue with the version of .NET or OS, but my users has the latest version of Windows 10 Enterprise (10.0.17134) and dual screen with 1: 3840x2160 2: 2560x1600. I have tried to replicate that on my own computer but everything works fine for me. I also tested the App in Windows 7 and it works with no issues.
I really don't understand what could be happening, does it have anything to do with the user's DPI settings or any accessibility feature?
EDIT:
To make things a bit easier, this is the full code of the main view's xaml:
<UserControl x:Class="MyCompany.MyAppName.App.View.MyAppView"
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:MyCompany.MyAppName.App.View"
xmlns:viewModel="clr-namespace:MyCompany.MyAppName.App.ViewModel"
xmlns:view="clr-namespace:MyCompany.MyAppName.App.View"
xmlns:res="clr-namespace:MyCompany.MyAppName.App.Assets"
xmlns:util="clr-namespace:MyCompany.MyAppName.App.Utils"
mc:Ignorable="d"
x:Name="configuratorControl" d:DesignHeight="600" d:DesignWidth="600"
>
<UserControl.Resources>
<util:PercentageConverter x:Key="percentageConverter"/>
<DataTemplate DataType="{x:Type viewModel:ObjectSelectionViewModel}">
<view:ObjectSelectionPageView/>
</DataTemplate>
<DataTemplate DataType="{x:Type viewModel:CurrentObjectComponentsViewModel}">
<view:CurrentObjectComponentsView/>
</DataTemplate>
<DataTemplate DataType="{x:Type viewModel:CurrentObjectOptionsViewModel}">
<view:CurrentObjectOptionsView/>
</DataTemplate>
<DataTemplate DataType="{x:Type viewModel:SageFourViewModel}">
<view:SageFourView/>
</DataTemplate>
<DataTemplate DataType="{x:Type viewModel:SageThreeViewModel}">
<view:SageThreeView/>
</DataTemplate>
<DataTemplate DataType="{x:Type viewModel:ObjectViewModel}">
<view:MyNumberView/>
</DataTemplate>
<Style TargetType="{x:Type Button}">
<Setter Property="Padding" Value="3.5,0" />
<Setter Property="Margin" Value="3.5" />
<Setter Property="MinWidth" Value="80" />
<Setter Property="FontSize" Value="15"/>
<Setter Property="FontWeight" Value="Regular"/>
</Style>
<!-- This Style inherits from the Button style seen above. -->
<Style BasedOn="{StaticResource {x:Type Button}}" TargetType="{x:Type Button}" x:Key="moveNextButtonStyle">
<Setter Property="Content" Value="{x:Static res:Strings.MyAppView_Button_MoveNext}" />
<Style.Triggers>
<DataTrigger Binding="{Binding Path=IsOnLastPage}" Value="True">
<Setter Property="Content" Value="{x:Static res:Strings.SageThreeView_Confirm}" />
</DataTrigger>
<DataTrigger Binding="{Binding Path=IsOnCreateSageThreePage}" Value="True">
<Setter Property="Content" Value="{x:Static res:Strings.MyAppView_Button_CreateSageThree}" />
</DataTrigger>
</Style.Triggers>
</Style>
<Style BasedOn="{StaticResource {x:Type Button}}" TargetType="{x:Type Button}" x:Key="cancelButtonStyle">
<Setter Property="Content" Value="{x:Static res:Strings.MyAppView_Button_Cancel}" />
<Style.Triggers>
<DataTrigger Binding="{Binding Path=IsOnLastPage}" Value="True">
<Setter Property="Content" Value="{x:Static res:Strings.MyAppView_Button_ExportPDF}" />
</DataTrigger>
</Style.Triggers>
</Style>
<Style BasedOn="{StaticResource {x:Type Button}}" TargetType="{x:Type Button}" x:Key="movePreviousButtonStyle">
<Setter Property="Content" Value="{x:Static res:Strings.MyAppView_Button_MovePrevious}" />
</Style>
<!-- HEADERED CONTENT CONTROL STYLE -->
<Style TargetType="{x:Type HeaderedContentControl}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type HeaderedContentControl}">
<StackPanel Margin="2,0">
<Grid Margin="1,1,1,12" RenderTransformOrigin="0.5,0.5">
<Rectangle Fill="{DynamicResource {x:Static SystemColors.AppWorkspaceBrushKey}}" Height="3" Margin="10,-4" Opacity="0.6" RadiusX="8" RadiusY="8" VerticalAlignment="Bottom" />
<ContentPresenter ContentSource="Header" TextBlock.FontSize="22" TextBlock.FontWeight="DemiBold" TextBlock.Foreground="Black" HorizontalAlignment="Center" VerticalAlignment="Center" OpacityMask="Black" />
<Grid.Effect>
<DropShadowEffect Opacity="0.1" />
</Grid.Effect>
<Grid.RenderTransform>
<RotateTransform Angle="0" />
</Grid.RenderTransform>
</Grid>
<Grid>
<Rectangle Fill="{TemplateBinding Background}" />
<ContentPresenter ContentSource="Content" />
</Grid>
</StackPanel>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<DataTemplate x:Key="workflowStepTemplate">
<Border x:Name="bdOuter" BorderBrush="Black" BorderThickness="0,0,1,1" CornerRadius="12" Margin="1,1,1,12" Opacity="0.25" SnapsToDevicePixels="True">
<Border x:Name="bdInner" Background="White" BorderBrush="DarkBlue" BorderThickness="2,2,1,1" CornerRadius="12" Padding="2">
<TextBlock x:Name="txt" Margin="4,0,0,0" FontSize="15" FontWeight="Light" Text="{Binding Path=DisplayName}" />
</Border>
</Border>
<DataTemplate.Triggers>
<DataTrigger Binding="{Binding Path=IsCurrentPage}" Value="True">
<Setter TargetName="txt" Property="FontWeight" Value="SemiBold" />
<Setter TargetName="bdInner" Property="Background" Value="White" />
<Setter TargetName="bdOuter" Property="Opacity" Value="1" />
</DataTrigger>
</DataTemplate.Triggers>
</DataTemplate>
</UserControl.Resources>
<Canvas HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Width="{Binding ActualWidth, ElementName=configuratorControl}" Height="{Binding ActualHeight, ElementName=configuratorControl}">
<Canvas x:Name="searchCanvas" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Panel.ZIndex="3" Width="{Binding ActualWidth, ElementName=configuratorControl}" Height="{Binding ActualHeight, ElementName=configuratorControl}" Visibility="{Binding SearchBoxVisibility}">
<Grid Panel.ZIndex="4" Width="{Binding ActualWidth, ElementName=searchCanvas}" Height="{Binding ActualHeight, ElementName=searchCanvas}">
<StackPanel Panel.ZIndex="4" Orientation="Vertical" Width="270" Height="70" VerticalAlignment="Center" HorizontalAlignment="Center" >
<StackPanel Orientation="Horizontal" >
<TextBlock Margin="5" FontSize="15" Text="Serial Number:" Width="100" Height="25" TextAlignment="Center" VerticalAlignment="Center" HorizontalAlignment="Center" />
<TextBox Text="{Binding MyNumber, UpdateSourceTrigger=PropertyChanged}" Margin="5" Width="150" Height="25" />
</StackPanel>
<DockPanel HorizontalAlignment="Stretch">
<Button Margin="5" Content="Dismiss" Width="100" HorizontalAlignment="Left" Command="{Binding DismissSearchDraftCommand}"/>
<Button Margin="5" Content="Search" Width="100" HorizontalAlignment="Right" Command="{Binding StartSearchDraftCommand}"/>
</DockPanel>
</StackPanel>
<Rectangle Panel.ZIndex="3" Fill="LightBlue" Width="300" Height="100" />
</Grid>
<Rectangle Panel.ZIndex="2" Fill="LightGray" Opacity="0.4" Canvas.Left="0" Canvas.Top="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Width="{Binding ActualWidth, ElementName=configuratorControl}" Height="{Binding ActualHeight, ElementName=configuratorControl}" />
</Canvas>
<Grid Background="#11000000" Margin="1" Panel.ZIndex="2" IsEnabled="{Binding GridResultsEnabled}" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" Height="{Binding ActualHeight, ElementName=configuratorControl, Converter={StaticResource percentageConverter}, ConverterParameter=99.5}" Width="{Binding ActualWidth, ElementName=configuratorControl, Converter={StaticResource percentageConverter}, ConverterParameter=99.5}">
<Grid.BitmapEffect>
<BlurBitmapEffect Radius="{Binding GridBoxBlur}" KernelType="Box" />
</Grid.BitmapEffect>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="220" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="60" />
</Grid.RowDefinitions>
<!-- Workflow step listing -->
<HeaderedContentControl Header="{x:Static res:Strings.MyAppView_HeaderSteps}">
<ItemsControl ItemsSource="{Binding Path=Pages}" ItemTemplate="{StaticResource workflowStepTemplate}" />
</HeaderedContentControl>
<Button FontSize="15" Style="{StaticResource HyperLinkButtonStyle}" Margin="20,20,20,140" VerticalAlignment="Bottom" HorizontalAlignment="Center" Content="{x:Static res:Strings.MyAppView_Button_Search_Full}" Command="{Binding Path=OpenSearchFullCommand}"/>
<Button FontSize="15" Style="{StaticResource HyperLinkButtonStyle}" Margin="20,20,20,170" VerticalAlignment="Bottom" HorizontalAlignment="Center" Content="{x:Static res:Strings.MyAppView_Button_Search_Draft}" Command="{Binding Path=OpenSearchDraftCommand}"/>
<Button Margin="20,295,20,20" Command="{Binding Path=StartAgainCommand}" Content="{x:Static res:Strings.SageThreeView_StartAgain}" VerticalAlignment="Top" />
<Image Grid.Column="0" Grid.Row="0" Source="..\Assets\SplashLogo.png" HorizontalAlignment="Center" VerticalAlignment="Bottom" Stretch="None" Margin="20,20,20,20"/>
<!-- CURRENT PAGE AREA -->
<Border Background="White" Grid.Column="1" Grid.Row="0">
<ScrollViewer>
<HeaderedContentControl Content="{Binding Path=CurrentPage}" Header="{Binding Path=CurrentPage.DisplayName}" />
</ScrollViewer>
</Border>
<Border Grid.Column="0" Grid.Row="1" Background="LightGray" Grid.ColumnSpan="2">
<Grid >
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<TextBlock Grid.Column="0" Grid.Row="1" Grid.ColumnSpan="5" Margin="4" FontSize="15" Text="{Binding Path=SageThreeStatus}" VerticalAlignment="Center" Visibility="{Binding Path=ShowSageThreeStatus}" />
<!-- NAVIGATION BUTTONS -->
<Grid Grid.Column="2" Grid.Row="0" Grid.IsSharedSizeScope="True" HorizontalAlignment="Right" >
<Grid.ColumnDefinitions>
<ColumnDefinition SharedSizeGroup="Buttons" />
<ColumnDefinition SharedSizeGroup="Buttons" />
<ColumnDefinition SharedSizeGroup="Buttons" />
<ColumnDefinition SharedSizeGroup="Buttons" />
</Grid.ColumnDefinitions>
<Button Grid.Column="1" Grid.Row="0" Command="{Binding Path=MovePreviousCommand}" Style="{StaticResource movePreviousButtonStyle}" />
<Button Grid.Column="2" Grid.Row="0" Command="{Binding Path=MoveNextCommand}" Style="{StaticResource moveNextButtonStyle}" />
<Button Grid.Column="3" Grid.Row="0" Command="{Binding Path=CancelCommand}" Style="{StaticResource cancelButtonStyle}" />
</Grid>
</Grid>
</Border>
</Grid>
</Canvas>
</UserControl>

Cant set 3 toggle button text content which use same style

i have three toggle buttons which use a singe style resource on wpf, now i cant set their content, content is declared more than once error, each toggle button has a different content.
Each toggle button uses an image as background also.
<UserControl.Resources>
<Style x:Key="Chromeless" TargetType="ToggleButton">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ToggleButton">
<Border BorderThickness="0" Width="197" Height="60">
<ContentPresenter TextElement.FontFamily="{TemplateBinding TextElement.FontFamily}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" Margin="0,0,0,0"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Image x:Key="page1Pressed" Source="/graph_engine;Component/cucaracha/LD3/button_1.png" Height="60" Width="197" />
<Image x:Key="page1" Source="/graph_engine;Component/cucaracha/LD3/button_1_pressed.png" Height="60" Width="197" />
<Image x:Key="page2Pressed" Source="/graph_engine;Component/cucaracha/LD3/button_2.png" Height="60" Width="197" />
<Image x:Key="page2" Source="/graph_engine;Component/cucaracha/LD3/button_2_pressed.png" Height="60" Width="197" />
<Image x:Key="page3Pressed" Source="/graph_engine;Component/cucaracha/LD3/button_3.png" Height="60" Width="197" />
<Image x:Key="page3" Source="/graph_engine;Component/cucaracha/LD3/button_3_pressed.png" Height="60" Width="197" />
</UserControl.Resources>
<Viewbox Stretch="Fill" StretchDirection="Both">
<Grid Height="60" Name="grid1" Width="591" Margin="0,0,0,0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="197" />
<ColumnDefinition Width="197" />
<ColumnDefinition Width="197" />
</Grid.ColumnDefinitions>
<ToggleButton Style="{StaticResource Chromeless}" Name="page1" Background="Transparent" BorderBrush="Transparent" BorderThickness="0" Foreground="{x:Null}" Checked="page1_Checked" Unchecked="page1_Unchecked">
<DynamicResource ResourceKey="page1"/>
</ToggleButton>
<ToggleButton Grid.Column="1" Style="{StaticResource Chromeless}" Name="page2" Background="Transparent" BorderBrush="Transparent" BorderThickness="0" Foreground="{x:Null}" Unchecked="page2_Unchecked" Checked="page2_Checked">
<DynamicResource ResourceKey="page2"/>
</ToggleButton>
<ToggleButton Grid.Column="2" Style="{StaticResource Chromeless}" Name="page3" Background="Transparent" BorderBrush="Transparent" BorderThickness="0" Foreground="{x:Null}" Checked="page3_Checked" Unchecked="page3_Unchecked">
<DynamicResource ResourceKey="page3"/>
</ToggleButton>
</Grid>
</Viewbox>
Do you mean you can't change the image when you pressed down the toggle button? You only set a image to the content of toggle button. You can use Visual State Manager to change the background like this
If you just want to set the image and failed. Please check the image path.

How to appose WrapPanel items of different heights (vertically)?

This is how it looks like right now:
and this is how I'd like to have it:
As shown the tiles should be apposed as densely as possible with only a set margin between them.
And here's my code:
<Grid Background="Gray">
<TextBox x:Name="BoardNameTextBox" HorizontalAlignment="Left" Height="23" Margin="40,3,0,0" TextWrapping="Wrap" Text="pol" VerticalAlignment="Top" Width="120"/>
<Button Content="Button" HorizontalAlignment="Left" Margin="491,3,0,0" VerticalAlignment="Top" Width="75" Click="Button_Click"/>
<Grid Margin="0,30,0,0" Background="WhiteSmoke">
<WrapPanel VerticalAlignment="Top" HorizontalAlignment="Left">
<WrapPanel.Resources>
<Style TargetType="{x:Type Rectangle}">
<Setter Property="Width" Value="80" />
<Setter Property="Height" Value="80" />
<Setter Property="Margin" Value="3" />
<Setter Property="Fill" Value="#4DB4DD" />
</Style>
</WrapPanel.Resources>
<Rectangle Width="150" />
<Rectangle />
<Rectangle />
<Rectangle />
<Rectangle Width="200"/>
<Rectangle Height="25"/>
<Rectangle Height="40"/>
<Rectangle />
<Rectangle Width="220"/>
<Rectangle Height="30"/>
<Rectangle Height="30"/>
<Rectangle Width="150" />
<Rectangle />
</WrapPanel>
</Grid>
</Grid>
The code is of course a sample code for my particular problem - later on it should just be a wrap panel (or any other control) with the items (which are custom controls) added programmatically (like "WrapPanel1.Children.Add(r);"). I hope the images are self-explanatory.
What you are looking for is called cascading layout.it has a very popular implementation in javascript called Masonry which has a WPF counterpart known as WPF-Masonry .check preceding links for detail and demo.

UserControl with Bounding Box Scaling Point boxes

I want to make a UserControl like this image;
There are 9 boxes, top one is for rotating, while other one is for scaling purposes. I tried to make this with grid and background image, 2 rows, and small boxes with StackPanel, but have to provide lots of negative and positive margins to achieve this result. Is there any easy way to do so need help.
Thanks.
Something like this?
<Grid HorizontalAlignment="Center" VerticalAlignment="Center">
<Grid.RowDefinitions>
<RowDefinition Height="25"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Grid.Resources>
<Style TargetType="Rectangle">
<Setter Property="Stroke" Value="Black"/>
<Setter Property="StrokeThickness" Value="1"/>
<Setter Property="Height" Value="11"/>
<Setter Property="Width" Value="11"/>
<!-- For hittestvisibility -->
<Setter Property="Fill" Value="Transparent"/>
</Style>
</Grid.Resources>
<Line X1="0" Y1="1" X2="0" Y2="0" Stretch="Fill" Stroke="Black" />
<Rectangle VerticalAlignment="Top" HorizontalAlignment="Center"/>
<Grid Grid.Row="1" Height="200" Width="200" Margin="-5">
<Rectangle Margin="5" Height="Auto" Width="Auto" Fill="{x:Null}"/>
<Rectangle VerticalAlignment="Top" HorizontalAlignment="Left"/>
<Rectangle VerticalAlignment="Top" HorizontalAlignment="Center"/>
<Rectangle VerticalAlignment="Top" HorizontalAlignment="Right"/>
<Rectangle VerticalAlignment="Center" HorizontalAlignment="Left"/>
<Rectangle VerticalAlignment="Center" HorizontalAlignment="Right"/>
<Rectangle VerticalAlignment="Bottom" HorizontalAlignment="Left"/>
<Rectangle VerticalAlignment="Bottom" HorizontalAlignment="Center"/>
<Rectangle VerticalAlignment="Bottom" HorizontalAlignment="Right"/>
<!-- The Content -->
<Rectangle Width="Auto" Height="Auto" Margin="20" Fill="Green"/>
<TextBlock HorizontalAlignment="Center" VerticalAlignment="Center"
Text="Content"/>
</Grid>
</Grid>
The terminology is Bounding Box

Black background of WPF Window

I created simple window and applied style to it. Now, when I run application background is black:
In XAML it looks normal:
What is causing this?
Here is XAML code:
<Window SizeToContent="WidthAndHeight"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
x:Class="WPFTest.MainWindow">
<Window.Style>
<Style TargetType="Window">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate TargetType="Window">
<Grid Name="LayoutRoot" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Grid Grid.Row="0">
<ContentPresenter />
</Grid>
<StatusBar Name="statusBar1" Height="23" HorizontalAlignment="Stretch" VerticalAlignment="Top" Grid.Row="1" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Style>
<Grid>
<Grid Height="114" HorizontalAlignment="Center" Margin="1,0,557,622" Name="grid" VerticalAlignment="Bottom" Width="466">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="100*" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="25*" />
<RowDefinition Height="25*" />
<RowDefinition Height="25*" />
<RowDefinition Height="25*" />
</Grid.RowDefinitions>
<Label Content="Label4" Grid.Column="0" Grid.Row="3" HorizontalAlignment="Left" Margin="3,0,3,0" MinHeight="16" MinWidth="97" Name="xResourceLabel4" VerticalAlignment="Bottom" />
<Label Content="Label1" Grid.Column="0" Grid.Row="0" HorizontalAlignment="Left" Margin="3,0,3,0" MinHeight="16" MinWidth="98" Name="xResourceLabel1" VerticalAlignment="Bottom" />
<Label Content="Label2" Grid.Column="0" Grid.Row="1" HorizontalAlignment="Left" Margin="3,0,3,0" MinHeight="16" MinWidth="114" Name="xResourceLabel2" VerticalAlignment="Bottom" />
<Label Content="Label3" Grid.Column="0" Grid.Row="2" HorizontalAlignment="Left" Margin="3,0,3,0" MinHeight="16" MinWidth="80" Name="xResourceLabel3" VerticalAlignment="Bottom" />
<TextBox Background="#FFFFFF99" Grid.ColumnSpan="2" HorizontalAlignment="Center" Margin="120,0,189,0" MinHeight="23" MinWidth="157" Name="tbREGNR" VerticalAlignment="Bottom" />
<TextBox Background="#FFFFFF99" Grid.Column="1" Grid.Row="1" HorizontalAlignment="Center" Margin="0,0,189,0" MinHeight="23" MinWidth="157" Name="tbFaFabnr" VerticalAlignment="Bottom" />
<ComboBox Background="#FFFFFF99" DisplayMemberPath="" Grid.Column="1" Grid.Row="2" HorizontalAlignment="Center" Margin="0,0,189,0" MinHeight="24" MinWidth="157" Name="cb" SelectedValuePath="" VerticalAlignment="Bottom" />
<TextBox Background="#FFFF99CC" Grid.Column="1" Grid.Row="3" HorizontalAlignment="Center" Margin="0,0,175,0" MinHeight="23" MinWidth="171" Name="tbComp" VerticalAlignment="Bottom" />
</Grid>
</Grid>
</Window>
<Grid Name="LayoutRoot" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Background="White">
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Grid Grid.Row="0">
<ContentPresenter />
</Grid>
<StatusBar Name="statusBar1" Height="23" HorizontalAlignment="Stretch" VerticalAlignment="Top" Grid.Row="1" />
</Grid>
Because you are overriding the default template for the Window you are taking away the style effects (of which one is background = black on the root grid)
see above, i've put it in the template and it should now work (Background="White")
Below is the default template for a window (Taken From Blend)
<ControlTemplate x:Key="WindowTemplateKey" TargetType="{x:Type Window}">
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}">
<Grid>
<AdornerDecorator>
<ContentPresenter/>
</AdornerDecorator>
<ResizeGrip x:Name="WindowResizeGrip" HorizontalAlignment="Right" IsTabStop="false" Visibility="Collapsed" VerticalAlignment="Bottom"/>
</Grid>
</Border>
<ControlTemplate.Triggers>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="ResizeMode" Value="CanResizeWithGrip"/>
<Condition Property="WindowState" Value="Normal"/>
</MultiTrigger.Conditions>
<Setter Property="Visibility" TargetName="WindowResizeGrip" Value="Visible"/>
</MultiTrigger>
</ControlTemplate.Triggers>
</ControlTemplate>
<Style x:Key="WindowStyle1" TargetType="{x:Type Window}">
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.WindowTextBrushKey}}"/>
<Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.WindowBrushKey}}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Window}">
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}">
<AdornerDecorator>
<ContentPresenter/>
</AdornerDecorator>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="ResizeMode" Value="CanResizeWithGrip">
<Setter Property="Template" Value="{StaticResource WindowTemplateKey}"/>
</Trigger>
</Style.Triggers>
</Style>
Based on TBohnen.jnr's answer, the actual correct answer would be do it as the default window template and add Background="{TemplateBinding Background}" to the top-level child element of the ControlTemplate. In the default template it is a Border, whereas in your case it's the Grid:
<Grid Background="{TemplateBinding Background}" Name="LayoutRoot" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">

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