exTest/Test/WindowRed.xaml

<Window x:Class="Test.WindowRed"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        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"
        xmlns:local="clr-namespace:Test"
        mc:Ignorable="d"
        Title="WindowRed" Height="450" Width="800" Icon="materials\Черновик.ico">
    <Grid>
        <Border>
            <StackPanel Orientation="Vertical">
                <TextBox x:Name="Title"  Text="{Binding Title}"></TextBox> <!--не textbox, чтобы можно было изменить, биндим старые значения из БД-->
                <ComboBox x:Name="CB2"></ComboBox>
                <TextBox x:Name="CountInStock" Text="{Binding CountInStock}"></TextBox>
                <TextBox x:Name="Unit" Text="{Binding Unit}"></TextBox>
                <TextBox x:Name="CountInPack" Text="{Binding CountInPack}"></TextBox>
                <TextBox x:Name="MinCount"  Text="{Binding MinCount}"></TextBox>
                <TextBox x:Name="Cost" Text="{Binding Cost}"></TextBox>
                <Image Width="50" Height="50" x:Name="img" Source="{Binding Image}"></Image>
                <Button Content="Добавить новое изображение" Click="Button_Click"></Button>
                <TextBox x:Name="Description" TextWrapping="Wrap" AcceptsReturn="True" VerticalScrollBarVisibility="Visible" Text="{Binding Description}"></TextBox>
                <Button Content="Сохранить изменения" Click="Button_Click_1"></Button>
                <Button Content="Удалить продукт" Click="Button_Click_2"></Button>
            </StackPanel>
        </Border>
    </Grid>
</Window>