# Стили и темы
## СТИЛИ
```
```
```
```
## TargetType
```
```
```
```
## Определение обработчиков событий с помощью стилей
```
```
```
private void Button_Click(object sender, RoutedEventArgs e)
{
Button clickedButton = (Button)sender;
MessageBox.Show(clickedButton.Content.ToString());
}
```
## Наследование стилей и свойство BasedOn
```
```
## Стили в C#
```
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Media;
namespace WpfApp3
{
public partial class MainWindow : Window
{
public ObservableCollection StudentList { get; set; }
private Dictionary filters = new Dictionary();
public MainWindow()
{
InitializeComponent();
DataContext = this;
Globals.dataProvider = new LocalDataProvider();
StudentList = new ObservableCollection(Globals.dataProvider.GetStudents());
Style buttonStyle = new Style();
buttonStyle.Setters.Add(
new Setter
{
Property = Control.FontFamilyProperty,
Value = new FontFamily("Verdana")
});
buttonStyle.Setters.Add(
new Setter
{
Property = Control.MarginProperty,
Value = new Thickness(10)
});
buttonStyle.Setters.Add(
new Setter
{
Property = Control.BackgroundProperty,
Value = new SolidColorBrush(Colors.PowderBlue)
});
buttonStyle.Setters.Add(
new Setter
{
Property = Control.ForegroundProperty,
Value = new SolidColorBrush(Colors.Black)
});
button1.Style = buttonStyle;
button2.Style = buttonStyle;
}
private void ExitButton_Click(object sender, RoutedEventArgs e)
{
Application.Current.Shutdown();
}
private void NameFilter_TextChanged(object sender, TextChangedEventArgs e)
{
filters["Name"] = ((TextBox)sender).Text;
ApplyFilter();
}
private void NationFilter_TextChanged(object sender, TextChangedEventArgs e)
{
filters["Nation"] = ((TextBox)sender).Text;
ApplyFilter();
}
private void ApplyFilter()
{
var filteredStudents = Globals.dataProvider.GetStudents();
foreach (var filter in filters)
{
filteredStudents = filteredStudents.Where(s => s.GetType().GetProperty(filter.Key).GetValue(s, null).ToString().Contains(filter.Value.ToString()));
}
filteredStudents = filteredStudents.Where(s => s.Age >= 20 && s.Course > 2);
StudentList = new ObservableCollection(filteredStudents);
}
private void Button1_Click(object sender, RoutedEventArgs e)
{
MessageBoxResult result = MessageBox.Show("Семен Хомяк закончит универ ?", "Вопрос", MessageBoxButton.YesNo);
if (result == MessageBoxResult.Yes)
{
}
else
{
}
}
private void Button2_Click(object sender, RoutedEventArgs e)
{
MessageBoxResult result = MessageBox.Show("Сколько живет пингвин ?", "Вопрос", MessageBoxButton.YesNo);
if (result == MessageBoxResult.Yes)
{
}
else
{
}
}
}
internal interface IDataProvider
{
IEnumerable GetStudents();
}
public class LocalDataProvider : IDataProvider
{
public IEnumerable GetStudents()
{
return new List
{
new Student { Id = 1, Name = "Хэй Вэнь", Age = 24, Country = "Китай", GPA = 5.0, Speciality = "Программирование", Grant = 25000.0, Course = 4, EnrollmentDate = new DateTime(2020, 9, 1), IsFullTime = true },
new Student { Id = 2, Name = "Семен Хомяк", Age = 22, Country = "Россия", GPA = 3.7, Speciality = "Инженерия", Grant = 10000.0, Course = 2, EnrollmentDate = new DateTime(2022, 1, 15), IsFullTime = false },
new Student { Id = 3, Name = "Джейкоб Ли", Age = 19, Country = "Америка", GPA = 4.4, Speciality = "Лингвистика", Grant = 20000.0, Course = 1, EnrollmentDate = new DateTime(2023, 8, 20), IsFullTime = true },
new Student { Id = 4, Name = "Арамсунторнсук Пирапонг", Age = 18, Country = "Таиланд", GPA = 4.1, Speciality = "Логистика", Grant = 15000.0, Course = 1, EnrollmentDate = new DateTime(2023, 4, 6), IsFullTime = false },
new Student { Id = 5, Name = "Рипка Дарина", Age = 18, Country = "Украина", GPA = 4.8, Speciality = "Дизайн", Grant = 23000.0, Course = 1, EnrollmentDate = new DateTime(2023, 5, 15), IsFullTime = true },
};
}
}
public class Student
{
public int Id { get; set; }
public string Name { get; set; }
public string Speciality { get; set; }
public string Country { get; set; }
public double GPA { get; set; }
public double Grant { get; set; }
public DateTime EnrollmentDate { get; set; }
public bool IsFullTime { get; set; }
public int Age { get; internal set; }
public int Course { get; internal set; }
}
}
```
## ТЕМЫ
```
```
### light.xaml
```
```
### dark.xaml
```
```
```
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
List styles = new List { "light", "dark" };
styleBox.SelectionChanged += ThemeChange;
styleBox.ItemsSource = styles;
styleBox.SelectedItem = "dark";
}
private void ThemeChange(object sender, SelectionChangedEventArgs e)
{
string style = styleBox.SelectedItem as string;
var uri = new Uri(style + ".xaml", UriKind.Relative);
ResourceDictionary resourceDict =
Application.LoadComponent(uri) as ResourceDictionary;
Application.Current.Resources.Clear();
Application.Current.Resources.MergedDictionaries.Add(resourceDict);
}
}
```
## Переключение вида списка
```
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Media;
namespace WpfApp3
{
public partial class MainWindow : Window
{
public ObservableCollection StudentList { get; set; }
private Dictionary filters = new Dictionary();
private string currentStyle = "StackStyle";
public MainWindow()
{
InitializeComponent();
DataContext = this;
Globals.dataProvider = new LocalDataProvider();
StudentList = new ObservableCollection(Globals.dataProvider.GetStudents());
List styles = new List { "light", "dark" };
styleBox.SelectionChanged += ThemeChange;
styleBox.ItemsSource = styles;
styleBox.SelectedItem = "dark";
Style buttonStyle = new Style();
buttonStyle.Setters.Add(
new Setter
{
Property = Control.FontFamilyProperty,
Value = new FontFamily("Verdana")
});
buttonStyle.Setters.Add(
new Setter
{
Property = Control.MarginProperty,
Value = new Thickness(10)
});
buttonStyle.Setters.Add(
new Setter
{
Property = Control.BackgroundProperty,
Value = new SolidColorBrush(Colors.PowderBlue)
});
buttonStyle.Setters.Add(
new Setter
{
Property = Control.ForegroundProperty,
Value = new SolidColorBrush(Colors.Black)
});
}
private void ExitButton_Click(object sender, RoutedEventArgs e)
{
Application.Current.Shutdown();
}
private void NameFilter_TextChanged(object sender, TextChangedEventArgs e)
{
filters["Name"] = ((TextBox)sender).Text;
ApplyFilter();
}
private void NationFilter_TextChanged(object sender, TextChangedEventArgs e)
{
filters["Nation"] = ((TextBox)sender).Text;
ApplyFilter();
}
private void ApplyFilter()
{
var filteredStudents = Globals.dataProvider.GetStudents();
foreach (var filter in filters)
{
filteredStudents = filteredStudents.Where(s => s.GetType().GetProperty(filter.Key).GetValue(s, null).ToString().Contains(filter.Value.ToString()));
}
filteredStudents = filteredStudents.Where(s => s.Age >= 20 && s.Course > 2);
StudentList = new ObservableCollection(filteredStudents);
}
private void Button_Click(object sender, RoutedEventArgs e)
{
MessageBoxResult result = MessageBox.Show("Семен Хомяк закончит универ ?", "Вопрос", MessageBoxButton.YesNo);
if (result == MessageBoxResult.Yes)
{
}
else
{
}
}
private void Button2_Click(object sender, RoutedEventArgs e)
{
MessageBoxResult result = MessageBox.Show("Сколько живет пингвин ?", "Вопрос", MessageBoxButton.YesNo);
if (result == MessageBoxResult.Yes)
{
}
else
{
}
}
private void ThemeChange(object sender, SelectionChangedEventArgs e)
{
string style = styleBox.SelectedItem as string;
var uri = new Uri(style + ".xaml", UriKind.Relative);
ResourceDictionary resourceDict =
Application.LoadComponent(uri) as ResourceDictionary;
Application.Current.Resources.Clear();
Application.Current.Resources.MergedDictionaries.Add(resourceDict);
}
private void ToggleViewButton_Click(object sender, RoutedEventArgs e)
{
currentStyle = currentStyle == "StackStyle" ? "WrapStyle" : "StackStyle";
var newStyle = (Style)TryFindResource(currentStyle);
if (newStyle != null)
StudentListBox.Style = newStyle;
}
}
internal interface IDataProvider
{
IEnumerable GetStudents();
}
public class LocalDataProvider : IDataProvider
{
public IEnumerable GetStudents()
{
return new List
{
new Student { Id = 1, Name = "Хэй Вэнь", Age = 24, Country = "Китай", GPA = 5.0, Speciality = "Программирование", Grant = 25000.0, Course = 4, EnrollmentDate = new DateTime(2020, 9, 1), IsFullTime = true },
new Student { Id = 2, Name = "Семен Хомяк", Age = 22, Country = "Россия", GPA = 3.7, Speciality = "Инженерия", Grant = 10000.0, Course = 2, EnrollmentDate = new DateTime(2022, 1, 15), IsFullTime = false },
new Student { Id = 3, Name = "Джейкоб Ли", Age = 19, Country = "Америка", GPA = 4.4, Speciality = "Лингвистика", Grant = 20000.0, Course = 1, EnrollmentDate = new DateTime(2023, 8, 20), IsFullTime = true },
new Student { Id = 4, Name = "Арамсунторнсук Пирапонг", Age = 18, Country = "Таиланд", GPA = 4.1, Speciality = "Логистика", Grant = 15000.0, Course = 1, EnrollmentDate = new DateTime(2023, 4, 6), IsFullTime = false },
new Student { Id = 5, Name = "Рипка Дарина", Age = 18, Country = "Украина", GPA = 4.8, Speciality = "Дизайн", Grant = 23000.0, Course = 1, EnrollmentDate = new DateTime(2023, 5, 15), IsFullTime = true },
};
}
}
public class Student
{
public int Id { get; set; }
public string Name { get; set; }
public string Speciality { get; set; }
public string Country { get; set; }
public double GPA { get; set; }
public double Grant { get; set; }
public DateTime EnrollmentDate { get; set; }
public bool IsFullTime { get; set; }
public int Age { get; internal set; }
public int Course { get; internal set; }
}
}
```
