コード例 #1
0
        private void listViewList_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (listViewList.SelectedItems.Count == 1)
            {
                ListStudents list = listViewList.SelectedItems[0].Tag as ListStudents;

                comboBoxSpec.SelectedIndex = comboBoxSpec.FindString(list.idSpecialty.ToString());
                comboBoxKad.SelectedIndex  = comboBoxKad.FindString(list.idFirstName.ToString());
            }
            else
            {
                comboBoxKad.SelectedItem  = null;
                comboBoxSpec.SelectedItem = null;
            }
        }
コード例 #2
0
        private void buttonEdit_Click(object sender, EventArgs e)
        {
            if (listViewList.SelectedItems.Count == 1 && comboBoxKad.SelectedItem != null && comboBoxSpec.SelectedItem != null)
            {
                ListStudents list = listViewList.SelectedItems[0].Tag as ListStudents;

                list.idSpecialty = Convert.ToInt32(comboBoxSpec.SelectedItem.ToString().Split('.')[0]);
                list.idFirstName = Convert.ToInt32(comboBoxKad.SelectedItem.ToString().Split('.')[0]);

                Program.College.SaveChanges();
                ShowList();
            }
            else
            {
                MessageBox.Show("Данные не выбраны", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
        }
コード例 #3
0
 private void buttonDel_Click(object sender, EventArgs e)
 {
     try
     {
         if (listViewList.SelectedItems.Count == 1)
         {
             ListStudents list = listViewList.SelectedItems[0].Tag as ListStudents;
             Program.College.ListStudents.Remove(list);
             Program.College.SaveChanges();
             ShowList();
         }
         comboBoxKad.SelectedItem  = null;
         comboBoxSpec.SelectedItem = null;
     }
     catch
     {
         MessageBox.Show("Невозможно удалить, эта запись используется!", "Ошибка!", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
 }