private void buttonAdd_Click(object sender, EventArgs e)
        {
            GetOborudovanie go = new GetOborudovanie();

            go.IdPostav = Convert.ToInt32(comboBoxPostav.SelectedItem.ToString().Split('.')[0]);
            go.IdSotr   = Convert.ToInt32(comboBoxSotr.SelectedItem.ToString().Split('.')[0]);
            go.IdObor   = Convert.ToInt32(comboBoxOborud.SelectedItem.ToString().Split('.')[0]);
            go.Price    = textBoxPriceOborud.Text;
            go.DateVid  = textBoxDateVid.Text;
            Program.KPDB.GetOborudovanie.Add(go);
            Program.KPDB.SaveChanges();
            ShowGet();
        }
 private void buttonEdit_Click(object sender, EventArgs e)
 {
     if (listViewGet.SelectedItems.Count == 1)
     {
         GetOborudovanie go = listViewGet.SelectedItems[0].Tag as GetOborudovanie;
         go.IdPostav = Convert.ToInt32(comboBoxPostav.SelectedItem.ToString().Split('.')[0]);
         go.IdSotr   = Convert.ToInt32(comboBoxSotr.SelectedItem.ToString().Split('.')[0]);
         go.IdObor   = Convert.ToInt32(comboBoxOborud.SelectedItem.ToString().Split('.')[0]);
         go.Price    = textBoxPriceOborud.Text;
         go.DateVid  = textBoxDateVid.Text;
         Program.KPDB.SaveChanges();
         ShowGet();
     }
 }
 private void listViewGet_SelectedIndexChanged(object sender, EventArgs e)
 {
     if (listViewGet.SelectedItems.Count == 1)
     {
         GetOborudovanie go = listViewGet.SelectedItems[0].Tag as GetOborudovanie;
         comboBoxPostav.SelectedIndex = comboBoxPostav.FindString(go.IdPostav.ToString());
         comboBoxSotr.SelectedIndex   = comboBoxSotr.FindString(go.IdSotr.ToString());
         comboBoxOborud.SelectedIndex = comboBoxOborud.FindString(go.IdObor.ToString());
         textBoxPriceOborud.Text      = go.Price;
         textBoxDateVid.Text          = go.DateVid;
     }
     else
     {
         comboBoxPostav.SelectedItem = null;
         comboBoxSotr.SelectedItem   = null;
         comboBoxOborud.SelectedItem = null;
         textBoxPriceOborud.Text     = "";
         textBoxDateVid.Text         = "";
     }
 }
 private void buttonDel_Click(object sender, EventArgs e)
 {
     try
     {
         if (listViewGet.SelectedItems.Count == 1)
         {
             GetOborudovanie go = listViewGet.SelectedItems[0].Tag as GetOborudovanie;
             Program.KPDB.GetOborudovanie.Remove(go);
             Program.KPDB.SaveChanges();
             ShowGet();
         }
         comboBoxPostav.SelectedItem = null;
         comboBoxSotr.SelectedItem   = null;
         comboBoxOborud.SelectedItem = null;
         textBoxPriceOborud.Text     = "";
         textBoxDateVid.Text         = "";
     }
     catch
     {
         MessageBox.Show("Невозможно удалить, эта запись используется!", "Ошибка!", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
 }