private void ChangeButton_Click(object sender, RoutedEventArgs e)
{
var Window = new AddStudentWindow();
Student SelectedStudent = null;
var SelectedStudents = StudentsDataGrid.SelectedItems;
if (SelectedStudents.Count == 0)
{
MessageBox.Show("Nie wybrano żadnego studenta!");
return;
}
else
if (SelectedStudents.Count > 1)
{
MessageBox.Show("Wybrano zbyt wielu studentów!");
return;
}
else
{
SelectedStudent = (Student)StudentsDataGrid.SelectedItem;
}
Window.Open(ListaStudentow, SelectedStudent);
}
private void AddButton_Click(object sender, RoutedEventArgs e)
{
var Window = new AddStudentWindow();
Window.Open(ListaStudentow, null);
}
