How to set a ToolTip for each ListBoxItem - wpf

Question

I have a ListBox control; how would I set the ToolTip for each ListBoxItem using the code below.
<ListBox Name="FillSelections"
VerticalContentAlignment="Stretch"
Margin="1, 3, 1, 3"
IsEnabled="True"
Grid.Column="0"
Background="Transparent"
HorizontalContentAlignment="Center"
SelectedItem="{Binding SelectedColor}"
SelectionMode="Single"
Style="{StaticResource HorizontalListBoxStyle}"
ItemsSource="{Binding FillColors}"
ItemTemplate="{StaticResource ColorsItemTemplate}">
</ListBox>
<DataTemplate x:Key="ColorsItemTemplate">
<Border Width="20"
Height="16"
BorderBrush="Black"
BorderThickness="1">
<Border.Background>
<SolidColorBrush Color="{Binding}" />
</Border.Background>
<Path Stroke="Red"
StrokeThickness="3"
x:Name="abc"
Visibility="Hidden">
<Path.Data>
<LineGeometry StartPoint="0,16" EndPoint="20,0"/>
</Path.Data>
</Path>
</Border>
<DataTemplate.Triggers>
<DataTrigger Binding="{Binding}" Value="#00FFFFFF">
<Setter TargetName="abc" Property="Visibility" Value="Visible"/>
</DataTrigger>
</DataTemplate.Triggers>
</DataTemplate>

Answer 1

Try something like this
<ListBox Width="400" Margin="10"
ItemsSource="{Binding Source={StaticResource myTodoList}}">
<ListBox.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding Path=TaskName}"
ToolTipService.ToolTip="{Binding Path=TheTooltipText}"/>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
Of course adapt the ItemsSource binding with whatever your binding source is, and the binding Path parts with whatever public property of the objects in the list you actually want to display.

Answer 2

You could create a style for ListBoxItem. So something along the lines of:
<Window x:Class="WpfApplication3.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<Style TargetType="ListBoxItem">
<Setter Property="ToolTip">
<Setter.Value>
<ToolTip>
<TextBlock>Hello</TextBlock>
</ToolTip>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
<Grid>
<ListBox>
<ListBoxItem>
<TextBlock Text="Hello" />
</ListBoxItem>
</ListBox>
</Grid>
</Window>