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MainWindow.xaml.cs
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MainWindow.xaml.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
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 System.Collections.ObjectModel;
namespace Wpf_ManageStudents
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
ObservableCollection<Student> students;
string filter = "";
private bool storeData;
List<InputName> female = new List<InputName>();
List<InputName> male = new List<InputName>();
List<InputName> lastNames = new List<InputName>();
Random rnd = new Random();
public MainWindow()
{
InitializeComponent();
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
students = TestStorage.ReadXml<ObservableCollection<Student>>("StudentsTest.xml");
if (students == null)
students = GenerateStudents(200);
//students = new ObservableCollection<Student>();
//students = GenerateStudents(20);
//TestStorage.WriteXml<ObservableCollection<Student>>(students, "StudentsTest.xml");
Lbx_students.ItemsSource = students;
}
private ObservableCollection<Student> GenerateStudents(int cnt)
{
var lstInput = TestStorage.ReadXml<List<InputName>>("InputData.xml");
male = (from n in lstInput where n.cat == "m" select n).ToList();
female = (from n in lstInput where n.cat == "f" select n).ToList();
lastNames = (from n in lstInput where n.cat == "l" select n).ToList();
var lst = new ObservableCollection<Student>();
for (int i = 0; i < cnt; i++)
{
// lst.Add(new Student { id = i, firstName = "fname" + i, lastName = $"lName{i}", hobbies = "the hobbbbbiesss" });
Student stu = new Student();
int forGender = rnd.Next(100);
int forAge = rnd.Next(21, 31);
if (forGender < 25)
{
stu = new Student { id = i, firstName = female[rnd.Next(female.Count)].name, lastName = lastNames[rnd.Next(lastNames.Count)].name, hobbies = "the hobbbbbiesss", isFemale = true, birthDate = DateTime.Today.AddYears(-forAge) };
}
else
{
stu = new Student { id = i, firstName = male[rnd.Next(male.Count)].name, lastName = lastNames[rnd.Next(lastNames.Count)].name, hobbies = "the hobbbbbiesss", isFemale = false, birthDate = DateTime.Today.AddYears(-forAge) };
}
lst.Add(stu);
}
return lst;
}
private void Btn__add_Click(object sender, RoutedEventArgs e)
{
var stud = new Student { firstName = "please edit!!!", lastName = "please edit!!!" };
students.Add(stud);
Lbx_students.SelectedItem = stud;
Lbx_students.ScrollIntoView(stud);
}
private void Btn__delete_Click(object sender, RoutedEventArgs e)
{
if (Lbx_students.SelectedItem == null)
{
MessageBox.Show("Please select an item to be deleted first!", "Error");
return;
}
students.Remove(Lbx_students.SelectedItem as Student);
Tbx_filter.Text = "";
}
private void Tbx_filter_TextChanged(object sender, TextChangedEventArgs e)
{
filter = Tbx_filter.Text.ToLower();
if (filter == "")
{
Lbx_students.ItemsSource = students;
}
else
{
var results = from s in students where s.lastName.ToLower().Contains(filter) select s;
Lbx_students.ItemsSource = results;
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
(Lbx_students.SelectedItem as Student).taskOk = !(Lbx_students.SelectedItem as Student).taskOk;
storeData = true;
}
private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
if (storeData)
TestStorage.WriteXml<ObservableCollection<Student>>(students, "StudentsTest.xml");
}
private void Tbx_TextChanged(object sender, TextChangedEventArgs e)
{
storeData = true;
}
private void TextBox_TextChanged(object sender, TextChangedEventArgs e)
{
}
private void Btn_Quiz_Click(object sender, RoutedEventArgs e)
{
var win = new Quiz();
win.Owner = this;
win.Show();
Visibility = Visibility.Hidden;
}
}
}