Otel/HotelCalifornia/Room.xaml

<Window x:Class="HotelCalifornia.Room"
        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:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
        xmlns:local="clr-namespace:HotelCalifornia"
        mc:Ignorable="d"
        Title="Room" Height="450" Width="800" WindowStartupLocation="CenterScreen" ResizeMode="NoResize" WindowStyle="None" Icon="image/h1.png">
    <Grid MouseDown="Grid_MouseDown" >
        <Grid.Background>
            <LinearGradientBrush StartPoint="0.1,0" EndPoint="0.9,1">
                <GradientStop Color="#7E42F5" Offset="1" />
                <GradientStop Color="#383E7A" Offset="0"/>
            </LinearGradientBrush>
        </Grid.Background>
        <Label Content="Комнаты" Foreground="White" FontSize="35" FontFamily="Century Gothic" HorizontalAlignment="Center" Margin="167,46,167,344.6"/>
        <DataGrid Name="dataroom" IsReadOnly="True" HorizontalAlignment="Left" Height="257" Margin="293,138,0,0" BorderThickness="1" BorderBrush="Black" VerticalAlignment="Top" Width="497" />
        <StackPanel Margin="6,124,547,175.6" Orientation="Vertical">
            <TextBox Name="numbertxt" Margin="10,15,0,0" FontSize="18" FontFamily="Century Gothic" Foreground="White" MaxLength="3"
  materialDesign:HintAssist.Hint="Номер комнаты" PreviewTextInput="numbertxt_PreviewTextInput" PreviewKeyDown="numbertxt_PreviewKeyDown"/>
            <TextBox Name="telephonetxt" Margin="10,15,0,0" FontSize="18" FontFamily="Century Gothic" Foreground="White" MaxLength="9"
  materialDesign:HintAssist.Hint="Телефон комнаты" PreviewTextInput="telephonetxt_PreviewTextInput" PreviewKeyDown="telephonetxt_PreviewKeyDown"/>
            <Label Content="Статус комнаты:" Margin="10,15,0,0" Foreground="White" FontSize="18" FontFamily="Century Gothic"/>
        </StackPanel>
        <Label Content="Свободна" Margin="17,274,676,135.6" Foreground="White" FontSize="18" FontFamily="Century Gothic"/>
        <RadioButton IsChecked="True" Name="yescheck" Foreground="White" HorizontalAlignment="Left" Margin="128,278,0,0" VerticalAlignment="Top" Height="23" Width="19" Background="#FFF3EFFA"/>
        <Label Content="Да" Margin="146,275,620,139.6" Foreground="White" FontSize="16" FontFamily="Century Gothic"/>
        <RadioButton Name="nocheck" Foreground="White" HorizontalAlignment="Left" Margin="190,278,0,0" VerticalAlignment="Top" Height="23" Width="19" Background="#FFF3EFFA"/>
        <Label Content="Нет" Margin="208,275,555,139.6" Foreground="White" FontSize="16" FontFamily="Century Gothic"/>
        <StackPanel Margin="0,320,547,43.6" Orientation="Horizontal">
            <Button Name="Add" Style="{StaticResource MaterialDesignIconButton}" Foreground="White" ToolTip="Добавить" Margin="25,0,0,0" Click="Add_Click">
                <materialDesign:PackIcon Kind="Add" />
            </Button>
            <Button Style="{StaticResource MaterialDesignIconButton}" Foreground="White" ToolTip="Редактировать" Margin="25,0,0,0" Click="Update_Click">
                <materialDesign:PackIcon Kind="Edit" />
            </Button>
            <Button Style="{StaticResource MaterialDesignIconButton}" Foreground="White" ToolTip="Удалить" Margin="25,0,0,0" Click="Delete_Click">
                <materialDesign:PackIcon Kind="Delete" />
            </Button>
        </StackPanel>
        <Button Style="{StaticResource MaterialDesignIconButton}" ToolTip="Вернуться к окну выбора функции" Margin="10,10,742,391.6" Click="Back">
            <materialDesign:PackIcon Kind="Backburger"  Foreground="White"/>
        </Button>
        <Button Style="{StaticResource MaterialDesignIconButton}" ToolTip="Выход из приложения" Margin="742,10,10,391.6" Click="Close">
            <materialDesign:PackIcon Kind="ExitToApp" Foreground="White"/>
        </Button>
        <Button Name="WindMin"
  Style="{StaticResource MaterialDesignIconButton}" ToolTip="Свернуть окно" Margin="694,10,58,391.6" Click="WindMin_Click">
            <materialDesign:PackIcon Kind="WindowMinimize" Foreground="White"/>
        </Button>
        <TextBlock Name="timetxt" HorizontalAlignment="Center" FontFamily="Century Gothic" Margin="561,105,10,0" TextWrapping="Wrap" Foreground="White" FontSize="22" VerticalAlignment="Top" Height="28" Width="229"/>
    </Grid>
</Window>