demka/demofinish/EditWindow.axaml

<Window xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
        x:Class="demofinish.EditWindow"
        x:CompileBindings="False"
        Title="EditWindow">
    
        <DockPanel >
                <StackPanel Orientation="Vertical" VerticalAlignment="Center" Margin="5">
                        <TextBlock Text="Наименование:" Margin="5" VerticalAlignment="Center"/>
                        <TextBox x:Name="NameBox" Width="200" VerticalAlignment="Center" Margin="5"/>
                        <TextBlock Text="Приоритет:" Margin="5" VerticalAlignment="Center"/>
                        <TextBox x:Name="PriorityBox" Width="200" VerticalAlignment="Center" Margin="5" />
                        <TextBlock Text="Имя директора:" Margin="5" VerticalAlignment="Center"/>
                        <TextBox x:Name="BossNameBox" Width="200" VerticalAlignment="Center" Margin="5" />
                        <TextBlock Text="ИНН:" Margin="5" VerticalAlignment="Center"/>
                        <TextBox x:Name="InnBox" Width="200" VerticalAlignment="Center" Margin="5" />
                        <TextBlock Text="КПП:" Margin="5" VerticalAlignment="Center"/>
                        <TextBox x:Name="KppBox" Width="200" VerticalAlignment="Center" Margin="5" />
                        <TextBlock Text="Телефон:" Margin="5" VerticalAlignment="Center"/>
                        <TextBox x:Name="PhoneBox" Width="200" VerticalAlignment="Center" Margin="5" />
                        <TextBlock Text="Email:" Margin="5" VerticalAlignment="Center"/>
                        <TextBox x:Name="EmailBox" Width="200" VerticalAlignment="Center" Margin="5" />
                        <TextBlock Text="Адрес:" Margin="5" VerticalAlignment="Center"/>
                        <TextBox x:Name="AdressBox" Width="200" VerticalAlignment="Center" Margin="5" />
                        <TextBlock Text="Тип агента:" Margin="5" VerticalAlignment="Center"/>
                        <ComboBox x:Name="AgentTypeBox">
                                <ComboBox.ItemTemplate>
                                        <DataTemplate>
                                                <TextBlock Text="{Binding Title}" />
                                        </DataTemplate>
                                </ComboBox.ItemTemplate>
                        </ComboBox>

                </StackPanel>
                <StackPanel DockPanel.Dock="Bottom" HorizontalAlignment="Center" Orientation="Horizontal">
                        <Button Content="Готово" Margin="5" Click="EditAgent_Button"/>
                        <Button Content="Назад" Click="BackButton" Margin="5"/>

                </StackPanel>
                
        </DockPanel>
        
</Window>