prs/prs.desktop/Panels/Tasks/KanbanNotes.xaml

<UserControl x:Class="PRSDesktop.KanbanNotes"
             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"
             mc:Ignorable="d"
             d:DesignHeight="450" d:DesignWidth="800">
    <Grid ScrollViewer.HorizontalScrollBarVisibility="Disabled" Margin="10">
        <Grid.RowDefinitions>
            <RowDefinition Height="25" />
            <RowDefinition Height="*" />
            <RowDefinition Height="40" />
            <RowDefinition Height="100" />
        </Grid.RowDefinitions>
        <Label Grid.Row="0" Content="Previous Notes" HorizontalAlignment="Stretch" VerticalAlignment="Center" />
        <ListBox x:Name="NotesList" Grid.Row="1" Background="LightGray" VerticalAlignment="Stretch"
                 HorizontalAlignment="Stretch" ScrollViewer.HorizontalScrollBarVisibility="Disabled">
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <Grid HorizontalAlignment="Stretch" ScrollViewer.HorizontalScrollBarVisibility="Disabled"
                          Margin="2">
                        <Grid.RowDefinitions>
                            <RowDefinition Height="auto" />
                        </Grid.RowDefinitions>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="*" />
                        </Grid.ColumnDefinitions>
                        <TextBlock Grid.Row="0" Grid.Column="0" Text="{Binding Path=.}" TextWrapping="Wrap"
                                   HorizontalAlignment="Stretch" />
                    </Grid>
                </DataTemplate>
            </ListBox.ItemTemplate>
        </ListBox>
        <Label Grid.Row="2" Content="Add a Note" HorizontalAlignment="Stretch" VerticalAlignment="Bottom" />
        <TextBox Grid.Row="3" x:Name="NewNote" Text="" TextWrapping="Wrap" HorizontalAlignment="Stretch"
                 VerticalAlignment="Stretch" VerticalScrollBarVisibility="Auto" Background="LightYellow"
                 AcceptsReturn="True" />
    </Grid>
</UserControl>