Progect/ListHotels.xaml

<Page x:Class="WpfApp1.ListHotels"
      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:local="clr-namespace:WpfApp1"
      mc:Ignorable="d" 
      d:DesignHeight="450" d:DesignWidth="800"
      Title="ListHotels" IsVisibleChanged="Page_IsVisibleChanged">

    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="377"/>
            <RowDefinition Height="50"/>
        </Grid.RowDefinitions>
        <DataGrid x:Name="DGridHotels" AutoGenerateColumns = "false" IsReadOnly="True">
            <DataGrid.Columns>
                <DataGridTextColumn Header="Пароль" Binding="{Binding Password}" Width="100"></DataGridTextColumn>
                <DataGridTextColumn Header="Фамилия" Binding="{Binding FirstName}" Width="140"></DataGridTextColumn>
                <DataGridTextColumn Header="Имя" Binding="{Binding MiddleName}" Width="120"></DataGridTextColumn>
                <DataGridTextColumn Header="Отчество" Binding="{Binding LastName}" Width="140"></DataGridTextColumn>
                <DataGridTextColumn Header="Логин" Binding="{Binding Login}" Width="160"></DataGridTextColumn>
                <DataGridCheckBoxColumn Header="Уволен" Binding="{Binding IsDeleted}" Width="150"></DataGridCheckBoxColumn>
                <DataGridTemplateColumn Width="auto">
                    <DataGridTemplateColumn.CellTemplate>
                        <DataTemplate>
                            <Button Content="Редактировать" Name="BtnEdit" Click="BtnEdit_Click"></Button>
                        </DataTemplate>
                    </DataGridTemplateColumn.CellTemplate>
                </DataGridTemplateColumn>
            </DataGrid.Columns>
        </DataGrid>
        <Button Content="Добавить" Grid.Row="1" HorizontalAlignment="Left" Name="BtnAdd" Click="BtnAdd_Click"></Button>
        <Button Content="Удалить" Grid.Row="1" HorizontalAlignment="Right" Name="BtnDelete" Click="BtnDelete_Click"></Button>
    </Grid>
</Page>