MainWindow.xaml

<Window x:Class="AutaList.MainWindow"
        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:AutaList"
        mc:Ignorable="d"
        Title="AutaList" Height="450" Width="600">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="10"></RowDefinition>
            <RowDefinition Height="*"></RowDefinition>
            <RowDefinition Height="10"></RowDefinition>
            <RowDefinition Height="Auto"></RowDefinition>
            <RowDefinition Height="10"></RowDefinition>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="10"></ColumnDefinition>
            <ColumnDefinition Width="*"></ColumnDefinition>
            <ColumnDefinition Width="10"></ColumnDefinition>



        </Grid.ColumnDefinitions>
        

        <DataGrid Name="AutaDataGrid"  Grid.Row="1" Grid.Column="1" ColumnWidth="*"  ItemsSource="{Binding Auta}"  CanUserSortColumns="True" CanUserResizeRows="True" CanUserResizeColumns="True" CanUserAddRows="True" SelectionUnit="FullRow" SelectionMode="Single" AutoGenerateColumns="False" IsReadOnly="True" >
            <DataGrid.Columns>
                <DataGridTextColumn Header="Název modelu" Binding="{Binding Model}" />
                <DataGridTextColumn Header="Datum prodeje" Binding="{Binding Prodano, StringFormat=dd.MM.yyyy}" />
                <DataGridTextColumn Header="Cena" Binding="{Binding Cena, ConverterCulture=cs-CZ, StringFormat=N}" />
                <DataGridTextColumn Header="DPH" Binding="{Binding DPH}" />
            </DataGrid.Columns>
        </DataGrid>

        <Grid Grid.Row="3" Grid.Column="1">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="10"></ColumnDefinition>
                <ColumnDefinition Width="Auto"></ColumnDefinition>
                <ColumnDefinition Width="10"></ColumnDefinition>
                <ColumnDefinition Width="*"></ColumnDefinition>
                <ColumnDefinition Width="10"></ColumnDefinition>
                <ColumnDefinition Width="Auto"></ColumnDefinition>
                <ColumnDefinition Width="10"></ColumnDefinition>
            </Grid.ColumnDefinitions>
            <Button  Content="Načti tabulku" Command="{Binding LoadTableCommand}"  Grid.Column="1"  Name="Nacist" HorizontalAlignment="Left"  Width="120" Height="25"></Button>
            <Button Content="Prodej ve všední dny" Command="{Binding ShowWeekdaysSaleCommand}"  Grid.Column="3" HorizontalAlignment="Right" Width="120" Height="25" ></Button>
            <Button Content="Prodej o víkendu" Command="{Binding ShowWeekendSaleCommand}"  Grid.Column="5"  HorizontalAlignment="Right" Width="120" Height="25" ></Button>


        </Grid>

        
    </Grid>
</Window>