Create your own headered controls

Since the release of WIndows 8.1 most input controls like the TextBox and ComboBox have two new properties

  • Header
  • HeaderTemplate

These are really useful properties. They make it much easier to add a label above the input control.

This is how it looks like:

The xaml is really nice, its just this:

<TextBox x:Uid="FlightDetailPageView_Instructor" Header="Instructor" Margin="0, 0,0,10"
                                     Text="{Binding Flight.Instructor, Mode=TwoWay}"/>

Before Windows 8.1 we had to place the label or self with a new TextBlock and had to do the right alignment. Now that is done for us.

When you creating controls yourself its nice to add this feature to your controls aswell. it really speeds up development when using that control later again.

What things you have todo

First create two new dependency properties

public object Header
{
get { return (object)GetValue(HeaderProperty); }
set { SetValue(HeaderProperty, value); }
}

public static readonly DependencyProperty HeaderProperty =
DependencyProperty.Register("Header", typeof(object), typeof(DurationPicker), new PropertyMetadata(null));

public DataTemplate HeaderTemplate
{
get { return (DataTemplate)GetValue(HeaderTemplateProperty); }
set { SetValue(HeaderTemplateProperty, value); }
}

public static readonly DependencyProperty HeaderTemplateProperty =
DependencyProperty.Register("HeaderTemplate", typeof(DataTemplate), typeof(DurationPicker), new PropertyMetadata(null));

After that you need to place the header in your template. This is whre you have to do some styling for the right alignment but mostly this is already enough:

 <ControlTemplate TargetType="<nameofyourcontrol>">
                    <Border x:Name="LayoutRoot" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}">
                        <Grid Margin="{TemplateBinding Padding}">
                            <Grid.RowDefinitions>
                                <RowDefinition Height="Auto"/>
                                <RowDefinition Height="Auto"/>
                            </Grid.RowDefinitions>
                            <ContentPresenter x:Name="HeaderContentPresenter" ContentTemplate="{TemplateBinding HeaderTemplate}" Content="{TemplateBinding Header}" Foreground="{ThemeResource TimePickerHeaderForegroundThemeBrush}" FontWeight="{ThemeResource TimePickerHeaderThemeFontWeight}" FlowDirection="{TemplateBinding FlowDirection}" Margin="{ThemeResource TimePickerHeaderThemeMargin}"/>
                           <!-- place ytour control in the second row -->
                        </Grid>
                    </Border>
</ControlTemplate>

As you can see the control exist of a grid which have two rows. The first row is used for the Header and the second row you can use for your control.

  •   RT @windowsblog: Windows Template Studio 1.1 released! https://t.co/qCLpESAvnB
  •   @JenMsft and does sqrt(4) - 2 gives now the right awnser?
  •   @Alex_A_Simons any updates on that what more is happening ? (2/2)
  •   @Alex_A_Simons long time ago you said the mess between msa and aad's would be fixed; first step was block to create msa on aad account. (1/2
  •   First pullrequest for https://t.co/5lEHH630Io :)
  •   @qmatteoq whosdown is great alternative for whatapps and comes from the store
  •   @jvintzel only for windows 10 s users or can other surface users get it too?
  •   RT @JenMsft: O hi there @Spotify 😊 #Windows10 https://t.co/nlJUgM7vVG https://t.co/boah802WgZ
  •   RT @tvgrimbergen: Awesome! Just extended our @MicrosoftTeams bot. Provide natural language input to initiate a leave request powered by @Ni…
  •   @lancewmccarthy kind of sad :/