private void ButtonSave_Click(object sender, EventArgs e) { if (ID == null) { if (validation.check("date", dateTimePicker1.Value, dateTimePicker2.Value)) { ID = serviceCC.AddElement(new ModelContractClient { AgentId = Convert.ToInt32(comboBoxAgent.SelectedValue), ClientId = Convert.ToInt32(comboBoxClient.SelectedValue), DateStart = dateTimePicker1.Value, DateEnd = dateTimePicker2.Value, Sum = Convert.ToDouble(textBoxSum.Text) }); LoadData(); } } else { if (validation.check("date", dateTimePicker1.Value, dateTimePicker2.Value)) { serviceCC.UpdElement(new ModelContractClient { Id = Convert.ToInt32(ID), AgentId = Convert.ToInt32(comboBoxAgent.SelectedValue), ClientId = Convert.ToInt32(comboBoxClient.SelectedValue), DateStart = dateTimePicker1.Value, DateEnd = dateTimePicker2.Value, Sum = Convert.ToDouble(textBoxSum.Text) }); LoadData(); } } }