<!-- xaml for http://stackoverflow.com/a/25254838/1174169 -->

<Window x:Class="WpfApplication1.MainWindow"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

        xmlns:l="clr-namespace:WpfApplication1"

        Title="MainWindow" Height="350" Width="525">

    <Grid>

        <Grid.Resources>

            <!-- this data template is applied to any object of type Node -->

            <DataTemplate DataType="{x:Type l:Node}">

                <!-- node names are editable -->

                <TextBox Text="{Binding Name}" />

            </DataTemplate>

            <!-- this data template is applied to any object of type Connection -->

            <DataTemplate DataType="{x:Type l:Connection}">

                <TextBlock>

                    <!-- dot-notation path bindings -->

                    <Run Text="{Binding Name}" /><Run Text=":" /><Run Text="{Binding NodeA.Name}" /><Run Text="->" /><Run Text="{Binding NodeB.Name}" />

                    <!-- manual bindings -->

                    (<Run Text="{Binding AName}" /><Run Text="->" /><Run Text="{Binding BName}" />)

                </TextBlock>

            </DataTemplate>

        </Grid.Resources>

        <Grid.ColumnDefinitions>

            <ColumnDefinition />

            <ColumnDefinition />

        </Grid.ColumnDefinitions>

        <!-- display all the nodes -->

        <ItemsControl Grid.Column="0" ItemsSource="{Binding Nodes}" />

        <!-- display all the connections -->

        <ItemsControl Grid.Column="1" ItemsSource="{Binding Connections}" />

    </Grid>

</Window>

​