Extended ToolTip for UI Elements - wpf

Question

i have a problem with the ToolTips and need some helping hand.
I want to create a custom design for all tooltips, adding a header and a footer.
Because it should be the default tooltip style/template i created attached properties, to set the values for header and footer on all UI elements.
public class ToolTipExtensions
{
public static readonly DependencyProperty HeaderProperty = DependencyProperty.RegisterAttached("Header",
typeof(string), typeof(ToolTipExtensions), new PropertyMetadata(null));
public static readonly DependencyProperty FooterProperty = DependencyProperty.RegisterAttached("Footer",
typeof(string), typeof(ToolTipExtensions), new PropertyMetadata(null));
public static void SetHeader(UIElement element, string value)
{
element.SetValue(HeaderProperty, value);
}
public static string GetHeader(UIElement element)
{
return (string)element.GetValue(HeaderProperty);
}
public static void SetFooter(UIElement element, string value)
{
element.SetValue(FooterProperty, value);
}
public static string GetFooter(UIElement element)
{
return (string)element.GetValue(FooterProperty);
}
}
Im using the following style.
<Style TargetType="{x:Type ToolTip}">
<Setter Property="MinHeight" Value="150" />
<Setter Property="Width" Value="350" />
<Setter Property="Foreground" Value="Black" />
<Setter Property="Background" Value="#ECEFF4" />
<Setter Property="BorderBrush" Value="#394F6D" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ToolTip}">
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="1,1,1,1">
<Grid Background="{TemplateBinding Background}">
<Grid.RowDefinitions>
<RowDefinition Height="40" />
<RowDefinition Height="*" />
<RowDefinition Height="30" />
</Grid.RowDefinitions>
<Label
Grid.Row="0"
MinHeight="40"
Content="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(local:ToolTipExtensions.Header)}"
FontFamily="Arial"
FontSize="13"
FontWeight="Bold"
Foreground="{TemplateBinding Foreground}" />
<TextBlock
Grid.Row="1"
MinHeight="40"
Foreground="{TemplateBinding Foreground}"
Text="{Binding ToolTip, RelativeSource={RelativeSource Mode=TemplatedParent}}" />
<Label
Grid.Row="2"
MinHeight="30"
Content="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=(local:ToolTipExtensions.Footer)}"
FontFamily="Arial"
FontSize="12"
FontStyle="Italic"
FontWeight="Regular" />
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Im doing something wrong, because the tooltip dosent show anything. No ToolTip, no Header, no Footer.
Whats the problem with it? Wrong DataContext for the ToolTip?
Heres the usage:
<Button
local:ToolTipExtensions.Header="Button"
local:ToolTipExtensions.Footer="To show additional Info"
Content="Test"
ToolTip="Some fancy Text"
ToolTipService.InitialShowDelay="500"
ToolTipService.ShowDuration="999999999" />
Regards,
SyLuS

Answer 1

ToolTip for every control will be updated
Modified Style
<VM:DependecnyObjectTypeConverter x:Key="ConverterPa"/>
<Style TargetType="{x:Type ToolTip}">
<Setter Property="MinHeight" Value="150" />
<Setter Property="Width" Value="350" />
<Setter Property="Foreground" Value="Black" />
<Setter Property="Background" Value="#ECEFF4" />
<Setter Property="BorderBrush" Value="#394F6D" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="1,1,1,1">
<Grid Background="{TemplateBinding Background}">
<Grid.RowDefinitions>
<RowDefinition Height="40" />
<RowDefinition Height="*" />
<RowDefinition Height="30" />
</Grid.RowDefinitions>
<Label
Grid.Row="0"
MinHeight="40"
Content="{Binding RelativeSource={RelativeSource Mode=TemplatedParent},Converter={StaticResource ConverterPa},ConverterParameter=Header}"
FontFamily="Arial"
FontSize="13"
FontWeight="Bold"
Foreground="{TemplateBinding Foreground}" />
<TextBlock
Grid.Row="1"
MinHeight="40"
Foreground="{TemplateBinding Foreground}"
Text="{Binding RelativeSource={RelativeSource Mode=TemplatedParent},Converter={StaticResource ConverterPa},ConverterParameter=ToolTip}"/>
<Label
Grid.Row="2"
MinHeight="30"
Content="{Binding RelativeSource={RelativeSource Mode=TemplatedParent},Converter={StaticResource ConverterPa},ConverterParameter=Footer}"
FontFamily="Arial"
FontSize="12"
FontStyle="Italic"
FontWeight="Regular" />
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
IValueConverter:
public class DependecnyObjectTypeConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
var plTarget = value as System.Windows.Controls.ToolTip;
if (parameter.ToString() == "Header")
{
return plTarget.PlacementTarget.GetValue(ToolTipExtensions.HeaderProperty);
}
if (parameter.ToString() == "ToolTip")
{
return plTarget.PlacementTarget.GetValue(Control.ToolTipProperty);
}
if (parameter.ToString() == "Footer")
{
return plTarget.PlacementTarget.GetValue(ToolTipExtensions.HeaderProperty);
}
return null;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}