how can I access a property from a XAML ControlTemplate? - wpf

Question

I have the following Style for a DocumentViewer:
<Style x:Key="MyDocumentViewerStyle" TargetType="{x:Type DocumentViewer}">
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.WindowTextBrushKey}}" />
<Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}" />
<Setter Property="FocusVisualStyle" Value="{x:Null}" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type DocumentViewer}">
<Border BorderThickness="{TemplateBinding BorderThickness}" BorderBrush="{TemplateBinding BorderBrush}" Focusable="False">
<Grid KeyboardNavigation.TabNavigation="Local">
<Grid.Background>
<SolidColorBrush Color="{DynamicResource ControlLightColor}" />
</Grid.Background>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Border Grid.Row="1" CornerRadius="2" HorizontalAlignment="Stretch" BorderThickness="0">
<ToolBar HorizontalAlignment="Center" Height="35"
ToolBarTray.IsLocked="True" KeyboardNavigation.TabNavigation="Continue" ToolBar.OverflowMode="Never">
<Button Command="ApplicationCommands.Print" Margin="10,0"
CommandTarget="{Binding RelativeSource={RelativeSource TemplatedParent}}">
<!--Content="Print">-->
<Image Source="/ApniCureConsole;component/Images/Print.png" ToolTip="Print report" />
</Button>
<Separator />
<Button Command="NavigationCommands.IncreaseZoom" Margin="10,0"
CommandTarget="{Binding RelativeSource={RelativeSource TemplatedParent}}">
<!--Content="Zoom In">-->
<Image Source="/ApniCureConsole;component/Images/MagnifyPlus.png" ToolTip="Zoom in" />
</Button>
<Button Command="NavigationCommands.DecreaseZoom" Margin="10,0"
CommandTarget="{Binding RelativeSource={RelativeSource TemplatedParent}}">
<!--Content="Zoom Out" />-->
<Image Source="/ApniCureConsole;component/Images/MagnifyMinus.png" ToolTip="Zoom out" />
</Button>
<Separator />
<Button Margin="10,0,10,0"
Content="SAVE REPORT"
ToolTip="Save the report"
Style="{StaticResource CommandButton}"
Command="{Binding Path=SaveReportCommand}"
CommandParameter="{Binding ????}" <------WHAT DO I PUT HERE?
CommandTarget="{Binding RelativeSource={RelativeSource TemplatedParent}}"/>
</ToolBar>
</Border>
<ScrollViewer Grid.Row="0" CanContentScroll="true" HorizontalScrollBarVisibility="Auto" x:Name="PART_ContentHost" IsTabStop="true">
<ScrollViewer.Background>
<LinearGradientBrush EndPoint="0,0" StartPoint="0,1">
<GradientStop Color="#559CB7A4" Offset="0" />
<GradientStop Color="White" Offset="1" />
</LinearGradientBrush>
</ScrollViewer.Background>
</ScrollViewer>
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
I've defined the following elements in my application that use this Style:
<TabControl Style="{StaticResource MyTabControlStyle}" TabStripPlacement="Top" >
<TabItem Style="{StaticResource MyTabItemStyle}" IsTabStop="False">
<TabItem.Header>
<TextBlock Text="REPORT ONE" Height="18" Padding="10, 0" FontSize="14" Style="{StaticResource MyTabItemText}"/>
</TabItem.Header>
<DocumentViewer Name="ReportOne" IsTabStop="False" Document="{Binding Report1}" ContextMenu="{x:Null}" Style="{StaticResource MyDocumentViewerStyle}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" BorderThickness="0" BorderBrush="#FF00668E">
</DocumentViewer>
</TabItem>
<TabItem Style="{StaticResource MyTabItemStyle}" IsTabStop="False">
<TabItem.Header>
<TextBlock Text="REPORT TWO" Height="18" Padding="10, 0" FontSize="14" Style="{StaticResource MyTabItemText}"/>
</TabItem.Header>
<DocumentViewer Name="ReportTwo" IsTabStop="False" Document="{Binding Report2}" ContextMenu="{x:Null}" Style="{StaticResource MyDocumentViewerStyle}" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" BorderThickness="0" BorderBrush="#FF00668E">
</DocumentViewer>
</TabItem>
</TabControl>
My question is, how can I find out what the value for the "Name" property is from the XAML, so I can pass it my ViewModel?

Answer 1

Assuming that you want to pass the Name of the DocumentViewer as the CommandParameter to the ViewModel, the easiest is to use
CommandParameter="{TemplateBinding Name}"
which will bind the name of the templated control to the CommandParameter.