kursach/veloprokat2/Window1.xaml

<Window x:Class="veloprokat2.Window1"
        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:veloprokat2"
        mc:Ignorable="d"
        Title="Список продавцов" WindowState="Maximized" WindowStyle="None">
    <Grid Background="#EAF4F4">
        <Grid.ColumnDefinitions>
            <ColumnDefinition/>
            <ColumnDefinition/>
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition/>
            <RowDefinition/>
        </Grid.RowDefinitions>
        <DataGrid AutoGenerateColumns="True" Name="prodinfo"  Grid.Column="1" Grid.Row="0" Margin="0,10,10,10" Grid.RowSpan="2"/>
        <Button Content="Вернуться" Click="Vixod"  FontSize="20"  Width="250" Height="50" Margin="65,164,65,50"/>
        <Button Content="Добавить" Click="Insert"  FontSize="20"  Width="250" Height="50" Grid.Column="0" Margin="65,95,65,120"/>
    </Grid>
</Window>