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@@ -1,147 +1,275 @@
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-# Каркас приложения. Модель данных. Привязка данных. Табличный вывод.
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-## Каркас приложения.
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+# Поиск, сортировка ("Университет")
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+## Поиск
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```
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-<Grid ShowGridLines="True">
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- <Grid.RowDefinitions>
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- <RowDefinition Height="auto"/>
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- <RowDefinition />
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- <RowDefinition Height="auto"/>
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- </Grid.RowDefinitions>
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- <Grid.ColumnDefinitions>
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- <ColumnDefinition Width="200"/>
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- <ColumnDefinition/>
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- </Grid.ColumnDefinitions>
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-
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- <!-- типа логотип компании -->
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- <Image
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- Source="/Img/simon.png"
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- Grid.RowSpan="2"/>
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-
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- <StackPanel
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- Orientation="Vertical"
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- Grid.RowSpan="3"
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- VerticalAlignment="Bottom">
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- <Button
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- x:Name="ExitButton"
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- Content="Выход"
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- Click="ExitButton_Click"
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- Height="50"/>
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- </StackPanel>
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-
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- <WrapPanel
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- Orientation="Horizontal"
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- Grid.Column="1"
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- MinHeight="50">
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- <!-- минимальную высоту я тут поставил, чтобы верхнюю строку сетки было видно. В реальном приложении она не нужна -->
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- </WrapPanel>
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-</Grid>
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-```
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-
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-## Модель данных
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-## 1.
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-### Cоздадим класс "Student"
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-```
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-namespace WpfTemplate.Model
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+using System;
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+using System.Collections.Generic;
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+using System.Linq;
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+using System.Windows;
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+using System.Windows.Controls;
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+using System.Windows.Input;
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+
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+namespace University
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{
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- public class Cat
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+ public partial class MainWindow : Window
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{
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- public string name { get; set; }
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- public int age{ get; set; }
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- public string course { get; set; }
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- public string nation { get; set; }
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- public string photo { get; set; }
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+ private List<Student> students;
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+ private Dictionary<string, Func<Student, bool>> filters;
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+ private AgeRange selectedAge = new AgeRange { ageFrom = 19, ageTo = 23 };
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+ private string searchFilter = "";
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+
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+ public MainWindow()
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+ {
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+ InitializeComponent();
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+ SearchFilterTextBox.KeyUp += SearchFilter_KeyUp;
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+ InitializeData();
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+
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+ // Отображаем всех студентов в listview
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+ UpdateStudentList(students);
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+ }
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+
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+ private void InitializeData()
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+ {
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+ // Создаем список студентов
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+ students = new List<Student>
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+ {
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+ new Student { Name = "Хэй Вэнь", Course = 3, Nationality = "Китаец", Age = 22 },
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+ new Student { Name = "Эдвард Каллен", Course = 1, Nationality = "Американец", Age = 20 },
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+ new Student { Name = "Джейк Ли", Course = 1, Nationality = "Китаец", Age = 19 },
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+ new Student { Name = "Семен Хомяк", Course = 4, Nationality = "Русский", Age = 23 },
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+ new Student { Name = "Эндрю Уилсон", Course = 3, Nationality = "Американец", Age = 21 },
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+ new Student { Name = "Ариадна Санчес", Course = 2, Nationality = "Испанец", Age = 20 }
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+ };
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+
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+ // Создаем словарь фильтров
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+ filters = new Dictionary<string, Func<Student, bool>>
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+ {
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+ { "Все", s => true },
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+ { "Первый курс", s => s.Course == 1 },
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+ { "Второй курс", s => s.Course == 2 },
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+ { "Третий курс", s => s.Course == 3 },
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+ { "Четвертый курс", s => s.Course == 4 },
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+ { "Русские", s => s.Nationality == "Русский" },
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+ { "Китайцы", s => s.Nationality == "Китаец" },
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+ { "Американцы", s => s.Nationality == "Американец" },
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+ { "Испанцы", s => s.Nationality == "Испанец" },
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+ { "Возраст 19-20", s => s.Age >= 19 && s.Age <= 20 },
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+
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+ { "Возраст 21-23", s => s.Age >= 21 && s.Age <= 23 }
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+ };
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+ }
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+
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+ private IEnumerable<Student> FilteredStudentList
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+ {
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+ get
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+ {
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+ // сохраняем во временную переменную полный список
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+ var res = students;
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+
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+ // фильтруем по возрасту
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+ res = (List<Student>)res.Where(s => (s.Age >= selectedAge.ageFrom && s.Age < selectedAge.ageTo));
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+
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+ // если фильтр не пустой, то ищем ВХОЖДЕНИЕ подстроки поиска в имени без учета регистра
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+ if (searchFilter != "")
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+ res = (List<Student>)res.Where(s => s.Name.IndexOf(searchFilter, StringComparison.OrdinalIgnoreCase) >= 0);
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+
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+ return res;
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+ }
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+ }
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+
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+ private void UpdateStudentList(List<Student> studentsToDisplay)
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+ {
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+ StudentListView.ItemsSource = studentsToDisplay;
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+ }
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+
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+ private void SearchFilter_KeyUp(object sender, KeyEventArgs e)
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+ {
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+ searchFilter = SearchFilterTextBox.Text;
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+ UpdateStudentList(FilteredStudentList.ToList());
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+ }
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}
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-}
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-```
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-## 2.
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-### Cоздадим интерфейс IDataProvider
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-```
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-namespace WpfTemplate.Model
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-{
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- interface IDataProvider
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+
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+ public class Student
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{
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- IEnumerable<Student> getStudents();
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+ public string Name { get; set; }
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+ public int Course { get; set; }
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+ public string Nationality { get; set; }
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+ public int Age { get; set; }
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}
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-}
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-```
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-### Создадим класс LocalDataProvider
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-```
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-public class LocalDataProvider : IDataProvider
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-{
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- public IEnumerable<Student> getStudents()
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+
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+ public class AgeRange
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{
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- return new Student[]{
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- new Student{
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- age=25,
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- nation="Китаец",
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- course="4",
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- name="Хэй Вэнь"},
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- new Student{
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- age=23,
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- nation="Англичанин",
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- course="2",
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- name="Джейкоб Уилсон"},
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- new Student{
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- age=19,
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- nation="Испанец",
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- course="1",
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- name="Ариадна Санчес"}
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- };
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+ public int ageFrom { get; set; }
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+ public int ageTo { get; set; }
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}
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}
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+
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```
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-## 3.
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-### Cоздадим класс Globals
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```
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-class Globals
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-{
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- public static IDataProvider dataProvider;
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-}
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+<Window x:Class="University.MainWindow"
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+ xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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+ xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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+ xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
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+ xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
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+ xmlns:local="clr-namespace:University"
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+ mc:Ignorable="d"
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+ Title="University" Height="450" Width="800">
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+ <Grid>
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+ <Grid.RowDefinitions>
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+ <RowDefinition Height="Auto" />
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+ <RowDefinition Height="*" />
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+ </Grid.RowDefinitions>
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+
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+ <StackPanel Orientation="Horizontal" Margin="10">
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+ <Label
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+ Content="искать"
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+ VerticalAlignment="Center"/>
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+ <TextBox
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+ Width="200"
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+ VerticalAlignment="Center"
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+ x:Name="SearchFilterTextBox"
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+ KeyUp="SearchFilter_KeyUp"/>
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+ </StackPanel>
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+
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+ <ListView x:Name="StudentListView" Grid.Row="1" Margin="10">
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+ <ListView.View>
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+ <GridView>
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+ <GridViewColumn Header="Имя" DisplayMemberBinding="{Binding Name}" />
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+ <GridViewColumn Header="Курс" DisplayMemberBinding="{Binding Course}" />
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+ <GridViewColumn Header="Национальность" DisplayMemberBinding="{Binding Nationality}" />
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+ <GridViewColumn Header="Возраст" DisplayMemberBinding="{Binding Age}" />
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+ </GridView>
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+ </ListView.View>
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+ </ListView>
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+ </Grid>
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+</Window>
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```
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-## 4.
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-### присвоим глобальной переменной dataProvider экземпляр класса LocalDataProvider
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+
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+## Сортировка
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```
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-public IEnumerable<Student> studentList { get; set; }
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+using System;
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+using System.Collections.Generic;
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+using System.Linq;
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+using System.Windows;
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+using System.Windows.Controls;
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-public MainWindow()
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+namespace University
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{
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- InitializeComponent();
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- DataContext = this;
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- Globals.dataProvider = new LocalDataProvider();
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- StudentList = Globals.dataProvider.getStudents();
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-}
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+ public partial class MainWindow : Window
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+ {
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+ private List<Student> students;
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+ private bool sortAsc = true;
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-private void ExitButton_Click(object sender, RoutedEventArgs e)
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-{
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- Application.Current.Shutdown();
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+ public MainWindow()
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+ {
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+ InitializeComponent();
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+
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+ // Инициализируем список студентов
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+ InitializeData();
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+
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+ // Отображаем всех студентов в listview
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+ UpdateStudentList(students);
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+ }
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+
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+ private void InitializeData()
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+ {
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+ // Создаем список студентов
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+ students = new List<Student>
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+ {
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+ new Student { Name = "Хэй Вэнь", Course = 3, Nationality = "Китаец", Age = 22 },
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+ new Student { Name = "Эдвард Каллен", Course = 1, Nationality = "Американец", Age = 19 },
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+ new Student { Name = "Джейк Ли", Course = 1, Nationality = "Китаец", Age = 19 },
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+ new Student { Name = "Семен Хомяк", Course = 4, Nationality = "Русский", Age = 23 },
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+ new Student { Name = "Эндрю Уилсон", Course = 2, Nationality = "Американец", Age = 21 },
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+ new Student { Name = "Мария Гонсалес", Course = 3, Nationality = "Испанец", Age = 20 }
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+ };
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+ }
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+
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+ private void FilterComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
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+ {
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+ List<Student> filteredStudents = new List<Student>();
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+
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+
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+
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+ UpdateStudentList(filteredStudents);
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+ }
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+
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+ private void UpdateStudentList(List<Student> studentsToDisplay)
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+ {
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+ StudentListView.ItemsSource = studentsToDisplay;
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+ }
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+
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+ private void RadioButton_Checked(object sender, RoutedEventArgs e)
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+ {
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+ sortAsc = (sender as RadioButton).Tag.ToString() == "1";
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+ InvalidateVisual(); // Исправлено имя метода
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+ }
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+
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+ private IEnumerable<Student> FilteredStudentList
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+ {
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+ get
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+ {
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+ // сохраняем во временную переменную полный список
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+ var res = students;
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+
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+ return res;
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+ }
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+ }
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+ }
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+
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+ class Student
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+ {
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+ public string Name { get; set; }
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+ public int Course { get; set; }
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+ public string Nationality { get; set; }
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+ public int Age { get; set; }
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+ }
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}
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```
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-## Привязка данных. Табличный вывод
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```
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- <DataGrid
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-Grid.Row="1"
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-Grid.Column="1"
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-CanUserAddRows="False"
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-AutoGenerateColumns="False"
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-ItemsSource="{Binding studentList}">
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- <DataGrid.Columns>
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- <DataGridTextColumn
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- Header="Имя"
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- Binding="{Binding Name}"/>
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- <DataGridTextColumn
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- Header="Возраст"
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- Binding="{Binding Age}"/>
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- <DataGridTextColumn
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- Header="Курс"
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- Binding="{Binding Course}"/>
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- <DataGridTextColumn
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- Header="Национальность"
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- Binding="{Binding Nation}"/>
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- </DataGrid.Columns>
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- </DataGrid>
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+<Window x:Class="University.MainWindow"
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+ xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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+ xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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+ xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
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+ xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
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+ xmlns:local="clr-namespace:University"
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+ mc:Ignorable="d"
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+ Title="University" Height="450" Width="800">
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+ <Grid>
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+ <Grid.RowDefinitions>
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+ <RowDefinition Height="Auto" />
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+ <RowDefinition Height="*" />
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+ </Grid.RowDefinitions>
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+
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+ <StackPanel Orientation="Horizontal" Margin="10">
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+ <Label
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+ Content="Возраст:"
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+ VerticalAlignment="Center"/>
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+ <RadioButton
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+ GroupName="Age"
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+ Tag="1"
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+ Content="по возрастанию"
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+ IsChecked="True"
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+ Checked="RadioButton_Checked"
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+ VerticalAlignment="Center"/>
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+ <RadioButton
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+ GroupName="Age"
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+ Tag="2"
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+ Content="по убыванию"
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+ Checked="RadioButton_Checked"
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+ VerticalAlignment="Center"/>
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+ </StackPanel>
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+
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+ <ListView x:Name="StudentListView" Grid.Row="1" Margin="10">
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+ <ListView.View>
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+ <GridView>
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+ <GridViewColumn Header="Имя" DisplayMemberBinding="{Binding Name}" />
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+ <GridViewColumn Header="Курс" DisplayMemberBinding="{Binding Course}" />
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+ <GridViewColumn Header="Национальность" DisplayMemberBinding="{Binding Nationality}" />
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+ <GridViewColumn Header="Возраст" DisplayMemberBinding="{Binding Age}" />
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+ </GridView>
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+ </ListView.View>
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+ </ListView>
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+ </Grid>
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+</Window>
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```
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-# ꒰ᐢ⸝⸝•༝•⸝⸝ᐢ꒱⸒⸒ 🧊
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-
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-#### Хэй Вэнь отчислился
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-#### зато его брат остался тут
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-
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+
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