WPFda Application sinfi va boshqaruv elementlari shablonini yaratish
![private void Application_SessionEnding ( object sender,
SessionEndingCancelEventArgs e)
{
// Kompyuter o‘chirilayotganda ogohlantirish
}
3. Application Resources — umumiy resurslar boshqaruvi
WPF ilovalarida ko‘p marotaba ishlatiladigan UI elementlari — ranglar,
shriftlar, uslublar, DataTemplate , ControlTemplate va boshqa komponentlar
Application.Resources qismida saqlanishi mumkin.
Misol: App.xaml’da global Style yaratish
< Application.Resources >
< SolidColorBrush x:Key = "MainColor" Color = "CornflowerBlue" />
< Style TargetType = "Button" >
< Setter Property = "Background" Value = "{StaticResource MainColor}" />
< Setter Property = "FontWeight" Value = "Bold" />
</ Style >
</ Application.Resources >
Bu resurslar butun ilova bo‘ylab ishlatilishi mumkin.
Dy namic v a St at ic Resource farqi
Turi Tavsif
StaticResource Dastlab yuklanadi, ish vaqtida o‘zgarmaydi
DynamicResource Ish vaqtida yuklanadi, o‘zgarishga moslashadi
Resurslarga murojaat qilish (XAML va C# orqali)
XAML:
< TextBlock Foreground = "{StaticResource MainColor}" />
C# da:
var color = (Brush)Application.Current.Resources[ "MainColor" ];
WPF ilovasining ishga tushish va yopilish jarayonlari — ilovaning barqaror
ishlashi, foydalanuvchi tajribasi va xatoliklar boshqaruvida muhim rol o‘ynaydi.
Startup , Shutdown va Resources kabi komponentlar yordamida: Ilovani
17](https://docx.uz/documents/6110206c-8b32-4b7f-8d90-ac41bce60446/page_17.png?v=1)
![listVazifalar.Items.Add(panel);
}
private void Saqlash()
{
List<TaskItem> tasks = new List<TaskItem>();
foreach (StackPanel panel in listVazifalar.Items)
{
CheckBox chk = panel.Children[0] as CheckBox;
TextBlock lbl = panel.Children[1] as TextBlock;
tasks.Add(new TaskItem
{
Text = chk.Content.ToString(),
IsDone = chk.IsChecked == true,
Deadline = lbl.Text
});
}
string json = JsonConvert.SerializeObject(tasks, Formatting.Indented);
File.WriteAllText(fileName, json);
}
private void Yuklash()
{
if (File.Exists(fileName))
{
string json = File.ReadAllText(fileName);
var tasks = JsonConvert.DeserializeObject<List<TaskItem>>(json);
foreach (var task in tasks)
32](https://docx.uz/documents/6110206c-8b32-4b7f-8d90-ac41bce60446/page_32.png?v=1)
![{
PanelYaratish(task);
}
}
}
private void YangilashStatistika()
{
int jami = listVazifalar.Items.Count;
int bajarilgan = 0;
foreach (StackPanel panel in listVazifalar.Items)
{
if (panel.Children[0] is CheckBox chk && chk.IsChecked == true)
bajarilgan++;
}
int bajarilmagan = jami - bajarilgan;
lblStatistika.Content = $" ?????? Vazifalar: {jami} | ✅ Bajarilgan:
{bajarilgan} | ❌ Qolgan: {bajarilmagan}";
}
private void BtnDarkMode_Click(object sender, RoutedEventArgs e)
{
if (!darkModeOn)
{
this.Background = System.Windows.Media.Brushes.Black;
txtVazifa.Background = System.Windows.Media.Brushes.DimGray;
txtVazifa.Foreground = System.Windows.Media.Brushes.White;
33](https://docx.uz/documents/6110206c-8b32-4b7f-8d90-ac41bce60446/page_33.png?v=1)
Algoritmik tillar va dasturlash