musicschool/musicschoolapp/Pages/QuickEnroll.xaml.cs

using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading;
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;

namespace musicschoolapp.Pages
{
    /// <summary>
    /// Логика взаимодействия для QuickEnroll.xaml
    /// </summary>
    public partial class QuickEnroll : Page
    {
        musicschoolEntities1 mse = new musicschoolEntities1();
        public QuickEnroll()
        {
            InitializeComponent();
            comboboxCourse.ItemsSource = mse.Course.ToList();
            comboboxCourse.DisplayMemberPath = "Name";
            dGridStudent.ItemsSource = mse.Student.ToList();
        }

        private void dGridStudent_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            
            if (dGridStudent.SelectedCells[3] != null)
            {

            }
            foreach (var student in dGridStudent.ItemsSource)
            {
                var student_ = student as Student;
                if (true)
                {

                    if (student_.toEnroll)
                    {
                        Enrollment enrollment = new Enrollment();
                        enrollment.StudentID = student_.StudentID;
                        enrollment.CourseID = (comboboxCourse.SelectedItem as Course).CourseID;
                        enrollment.EnrollmentDate = DateTime.Now;
                        enrollment.Grade = student_.grade;
                        mse.Enrollment.Add(enrollment);
                        student_.toEnroll = false;
                    }
                    else
                    {
                    }
                }
                else
                {
                }
            }
        }

        private void buttonStart_Click(object sender, RoutedEventArgs e)
        {
            MessageBox.Show("Добавлено: " + mse.SaveChanges());
        }

        private void comboboxCourse_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            dGridStudent.IsEnabled = true;
        }
    }
}