AdjacencyListInput.xaml

<UserControl x:Class="Graphs.Views.Controls.AdjacencyListInput"
             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"
             xmlns:clr="clr-namespace:System;assembly=mscorlib"
             mc:Ignorable="d"
             xmlns:cnv="clr-namespace:Graphs.Views.Converters"
             xmlns:vm="clr-namespace:Graphs.ViewModels"
             d:DesignHeight="300" d:DesignWidth="300">
    <UserControl.DataContext>
        <vm:AdiacencyListInputViewModel />
    </UserControl.DataContext>
    <UserControl.Resources>
        <cnv:LocalizationConverter x:Key="Loc" />
        <cnv:NumberConverter x:Key="NumberCnv" />
        <Style TargetType="TextBox">
            <Setter Property="Foreground" Value="Black" />
        </Style>

        <clr:String x:Key="AddEdge">AddEdge</clr:String>
        <clr:String x:Key="RemoveEdge">RemoveEdge</clr:String>
    </UserControl.Resources>
    <Grid Background="Transparent">
        <Grid.RowDefinitions>
            <RowDefinition Height="*" />
            <RowDefinition Height="100" />
        </Grid.RowDefinitions>
        <ItemsControl x:Name="lv" ItemsSource="{Binding AdiacencyList}">
            <ItemsControl.ItemTemplate>
                <DataTemplate>
                    <StackPanel Orientation="Horizontal">
                        <TextBlock FontWeight="ExtraBold">
                            <Run Text="{Binding Key,Mode=OneWay}" />
                            <Run Text=" -> " />
                        </TextBlock>
                        <TextBlock FontWeight="Light" Text="{Binding Path=Value ,Mode=OneWay}" />
                    </StackPanel>
                </DataTemplate>
            </ItemsControl.ItemTemplate>
        </ItemsControl>
        <Border Grid.Row="1"  BorderThickness="5" Margin="-2" CornerRadius="3" BorderBrush="{StaticResource Accent}">
            <Grid Background="LightGray">
                <Grid.RowDefinitions>
                    <RowDefinition Height="*" />
                    <RowDefinition Height="*" />
                </Grid.RowDefinitions>
                <StackPanel Orientation="Horizontal" VerticalAlignment="Center" HorizontalAlignment="Center">
                    <StackPanel Width="100">
                        <TextBlock Text="V1" />
                        <ComboBox x:Name="c1"  ItemsSource="{Binding Vertices}" SelectedItem="{Binding SelectedC1,Mode=TwoWay}">
                            <ComboBox.ItemTemplate>
                                <DataTemplate>
                                    <TextBlock Text="{Binding Id}" />
                                </DataTemplate>
                            </ComboBox.ItemTemplate>
                        </ComboBox>
                    </StackPanel>
                    <StackPanel Width="100">
                        <TextBlock Text="V2" />
                        <ComboBox x:Name="c2" ItemsSource="{Binding Vertices}" SelectedItem="{Binding SelectedC2,Mode=TwoWay}">
                            <ComboBox.ItemTemplate>
                                <DataTemplate>
                                    <TextBlock Text="{Binding Id}" />
                                </DataTemplate>
                            </ComboBox.ItemTemplate>
                        </ComboBox>
                    </StackPanel>
                </StackPanel>
                <StackPanel Grid.Row="1">
                    <Button Width="300" VerticalAlignment="Bottom" Content="{Binding Source={StaticResource AddEdge}, Converter={StaticResource Loc}}" Command="{Binding AddEdge}" />
                    <Button Width="300" VerticalAlignment="Bottom" Content="{Binding Source={StaticResource RemoveEdge}, Converter={StaticResource Loc}}" Command="{Binding RemoveEdge}" />
                </StackPanel>
            </Grid>
        </Border>
    </Grid>
</UserControl>