private void DeleteStudentButton_Click(object sender, RoutedEventArgs e)
{
if (studentsList.SelectedItem != null)
{
DTOStudent student = (DTOStudent)studentsList.SelectedItem;
ComboBoxItem gnItem = new ComboBoxItem()
{
Content = GroupsComboBox.Text
};;
string answer = client.DeleteStudentFromGroup(student.StudentId);
if (answer == "successfully")
{
AddItemsToComboBox();
DTOGroup group = groups.FirstOrDefault(g => g.GroupName == gnItem.Content.ToString());
List <DTOStudent> students = client.GetGroupStudents(group.StudentsId.ToList <int>());
studentsList.ItemsSource = students;
}
else
{
MessageBox.Show("Something wrong!");
}
}
else
{
MessageBox.Show("Pleaіe select student!");
}
}
private void DeleteStudentFromGroup_Click(object sender, RoutedEventArgs e)
{
var dg = sender as DataGrid;
for (var vis = sender as Visual; vis != null; vis = VisualTreeHelper.GetParent(vis) as Visual)
{
if (vis is DataGridRow)
{
if (((System.Windows.FrameworkElement)vis).DataContext is DTOStudent)
{
var studentId = ((DTO.DTOStudent)((System.Windows.FrameworkElement)vis).DataContext).StudentId;
if (studentId != -1)
{
string answer = client.DeleteStudentFromGroup(studentId);
if (answer == "successfully")
{
SetListOfStudents();
}
}
}
}
}
}