Otel/HotelCalifornia/Rezerv.xaml

<Window x:Class="HotelCalifornia.Rezerv"
        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="Rezerv" 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>
        <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>
    </Grid>
</Window>