## Каркас приложения. Модель данных. Привязка данных. Табличный вывод.

### Файл класса:
```
...
namespace wpf_template.Model
{
    public class Product
    {
        public string Title { get; set; }
        public string Company { get; set; }    
        public int Price { get; set; }
        public string Category { get; set; }
        public string Photo { get; set; }
    }

    interface IDataProvider
    {
        IEnumerable<Product> GetProducts();
    }

    public class LocalDataProvider : IDataProvider
    {
        public IEnumerable<Product> GetProducts()
        {
            return new Product[]{
            new Product
            {
                Category = "Смартфон",
                Company = "Apple",
                Title = "13 Pro Max",
                Price = 84999
            },
            new Product
            {
                Category = "Смартфон",
                Company = "Samsung",
                Title = "S23",
                Price = 89999
            },
            new Product
            {
                Category = "Ноутбук",
                Company = "Xiaomi",
                Title = "RedmiBook 15",
                Price = 49999
            }
            };
        }
    }
}
...
```


### Основной код:
XAML:
```
<Window x:Class="wpf_template.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:wpf_template"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    
    <Grid ShowGridLines="True">
        <Grid.RowDefinitions>
            <RowDefinition Height="auto"/>
            <RowDefinition />
            <RowDefinition Height="auto"/>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="200"/>
            <ColumnDefinition/>
        </Grid.ColumnDefinitions>


        <Image 
         Source="assets/nagievlogo2.jpg"
         Grid.Row="1"
         Grid.RowSpan="2"/>

        <StackPanel 
        Orientation="Vertical"
        Grid.RowSpan="3"
        Grid.Row="2"
        VerticalAlignment="Bottom">
            <Button 
            x:Name="ExitButton"
            Content="Выход" 
            Click="ExitButton_Click"
            Height="50"/>
        </StackPanel>

        <DataGrid
            Grid.Row="1"
            Grid.Column="1"
            CanUserAddRows="False"
            AutoGenerateColumns="False"
            ItemsSource="{Binding ProductList}">
            <DataGrid.Columns>
                <DataGridTextColumn
                Header="Категория"
                Binding="{Binding Category}"/>
                <DataGridTextColumn
                Header="Компания"
                Binding="{Binding Company}"/>
                <DataGridTextColumn
                Header="Название"
                Binding="{Binding Title}"/>
                <DataGridTextColumn
                Header="Цена"
                Binding="{Binding Price}"/>
            </DataGrid.Columns>
        </DataGrid>

        <WrapPanel
        Orientation="Horizontal"
        Grid.Column="1"
        MinHeight="50
            ">
            <!-- минимальную высоту я тут поставил, чтобы верхнюю строку сетки было видно. В реальном приложении она не нужна -->
        </WrapPanel>
    </Grid>
</Window>

```

C#:
```
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using wpf_template.Model;

namespace wpf_template
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    /// 
    public partial class MainWindow : Window
    {
        public IEnumerable<Product> ProductList { get; set; }

        public MainWindow()
        {
            InitializeComponent();
            DataContext = this;
            Globals.dataProvider = new LocalDataProvider(); 
            ProductList = Globals.dataProvider.GetProducts();
        }

        private void ExitButton_Click(object sender, RoutedEventArgs e)
        {
            Application.Current.Shutdown();
        }
    }

    class Globals
    {
        public static IDataProvider dataProvider;
    }
}
```

Результат в моей предметной области:
![](./img/1.png)