private void CreateSubjectButton_Click(object sender, RoutedEventArgs e)
{
if (SubjectName.Text != "")
{
bool isCorrect = true;
foreach (var n in subjects)
{
if (SubjectName.Text == n.SubjectName)
{
isCorrect = false;
}
}
if (isCorrect)
{
string subjectName = SubjectName.Text;
string answer = client.AddSubject(subjectName);
if (answer == "succesfull")
{
main.Content = new AdminSubjects(client, mw, main);
}
}
else
{
MessageBox.Show("This item already exists!");
}
}
else
{
MessageBox.Show("Please enter subject name!");
}
}