Пример #1
0
 private void buttonEdit_Click(object sender, EventArgs e)
 {
     if (listViewMarks.SelectedItems.Count == 1)
     {
         if (comboBoxStudent.SelectedItem != null && comboBoxSubject.SelectedItem != null &&
             textBoxMark.Text != "")
         {
             int  temp;
             bool mark = int.TryParse(textBoxMark.Text, out temp);
             if (!mark)
             {
                 MessageBox.Show("Оценка - это число", "Неверный формат оценки", MessageBoxButtons.OK);
             }
             else
             {
                 MarksSet marksSet = listViewMarks.SelectedItems[0].Tag as MarksSet;
                 marksSet.id_Student = Convert.ToInt32(comboBoxStudent.SelectedItem.ToString().Split('.')[0]);
                 marksSet.id_Subject = Convert.ToInt32(comboBoxSubject.SelectedItem.ToString().Split('.')[0]);
                 marksSet.Mark       = Convert.ToInt32(textBoxMark.Text);
                 Program.abc.SaveChanges();
                 ShowMarks();
             }
         }
         else
         {
             MessageBox.Show("Заполните все поля", "Невозможно внести данные!", MessageBoxButtons.OK);
         }
     }
 }
Пример #2
0
 private void listViewMarks_SelectedIndexChanged(object sender, EventArgs e)
 {
     if (listViewMarks.SelectedItems.Count == 1)
     {
         MarksSet marksSet = listViewMarks.SelectedItems[0].Tag as MarksSet;
         comboBoxStudent.SelectedIndex = comboBoxStudent.FindString(marksSet.id_Student.ToString());
         comboBoxSubject.SelectedIndex = comboBoxSubject.FindString(marksSet.id_Subject.ToString());
         textBoxMark.Text = marksSet.Mark.ToString();
     }
     else
     {
         comboBoxStudent.SelectedItem = null;
         comboBoxSubject.SelectedItem = null;
         textBoxMark.Text             = "";
     }
 }
Пример #3
0
 private void buttonDel_Click(object sender, EventArgs e)
 {
     try
     {
         if (listViewMarks.SelectedItems.Count == 1)
         {
             MarksSet marksSet = listViewMarks.SelectedItems[0].Tag as MarksSet;
             Program.abc.MarksSet.Remove(marksSet);
             Program.abc.SaveChanges();
             ShowMarks();
         }
         comboBoxStudent.SelectedItem = null;
         comboBoxSubject.SelectedItem = null;
         textBoxMark.Text             = "";
     }
     catch
     {
         MessageBox.Show("Невозможно удалить, эта запись используется!", "Ошибка!", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
 }