예제 #1
0
        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (edited.Value)
            {
                if (DialogResult.Yes == MessageBox.Show("Сохранить изменения в БД?", "Внимание", MessageBoxButtons.YesNo))
                {
                    try
                    {
                        int       kt   = 0;
                        int       kol  = dataSet1.postavki.Count;
                        DataRow[] rows = new DataRow[kol];
                        foreach (DataRow r in dataSet1.postavki)
                        {
                            if (r.RowState == DataRowState.Deleted)
                            {
                                rows[kt] = r;
                                kt++;
                            }
                        }
                        for (int k = 0; k <= kt; k++)
                        {
                            postavkiTableAdapter.Update(rows[k]);
                        }
                        postavshikiTableAdapter.Update(dataSet1.postavshiki);
                        produktTableAdapter.Update(dataSet1.produkt);

                        kol  = dataSet1.postavki.Count;
                        rows = new DataRow[kol];
                        kt   = 0;
                        foreach (DataRow r in dataSet1.postavki)
                        {
                            if (r.RowState == DataRowState.Modified || r.RowState == DataRowState.Added)
                            {
                                rows[kt] = r;
                                kt++;
                            }
                        }
                        for (int k = 0; k <= kt; k++)
                        {
                            postavkiTableAdapter.Update(rows[k]);
                        }
                        dataSet1.AcceptChanges();
                        edited.Value = false;
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show(ex.Message);
                    }
                }
                else
                {
                    dataSet1.RejectChanges();
                    edited.Value = false;
                }
                if (DialogResult.No == MessageBox.Show("Выйти?", "Выход", MessageBoxButtons.YesNo))
                {
                    e.Cancel = true;
                }
            }
        }
        private void btnSave_Click(object sender, RoutedEventArgs e)
        {
            if (action == ActionState.New)
            {
                try
                {
                    DataRow newRow = phoneNumbersDataSet.PhoneNumbers.NewRow();
                    newRow.BeginEdit();
                    newRow["Phonenum"]   = txtPhoneNumber.Text.Trim();
                    newRow["Subscriber"] = txtSubscriber.Text.Trim();
                    newRow.EndEdit();
                    phoneNumbersDataSet.PhoneNumbers.Rows.Add(newRow);
                    tblPhoneNumbersAdapter.Update(phoneNumbersDataSet.PhoneNumbers);
                    phoneNumbersDataSet.AcceptChanges();
                }
                catch (DataException ex)
                {
                    phoneNumbersDataSet.RejectChanges();
                    MessageBox.Show(ex.Message);
                }
                btnNew.IsEnabled         = true;
                btnEdit.IsEnabled        = true;
                btnSave.IsEnabled        = false;
                btnCancel.IsEnabled      = false;
                lstPhones.IsEnabled      = true;
                btnPrevious.IsEnabled    = true;
                btnNext.IsEnabled        = true;
                txtPhoneNumber.IsEnabled = false;
                txtSubscriber.IsEnabled  = false;
            }
            else
            if (action == ActionState.Edit)
            {
                try
                {
                    DataRow editRow = phoneNumbersDataSet.PhoneNumbers.Rows[lstPhones.SelectedIndex];
                    editRow.BeginEdit();
                    editRow["Phonenum"]   = txtPhoneNumber.Text.Trim();
                    editRow["Subscriber"] = txtSubscriber.Text.Trim();
                    editRow.EndEdit();
                    tblPhoneNumbersAdapter.Update(phoneNumbersDataSet.PhoneNumbers);
                    phoneNumbersDataSet.AcceptChanges();
                }
                catch (DataException ex)
                {
                    phoneNumbersDataSet.RejectChanges();
                    MessageBox.Show(ex.Message);
                }
                btnNew.IsEnabled         = true;
                btnEdit.IsEnabled        = true;
                btnDelete.IsEnabled      = true;
                btnSave.IsEnabled        = false;
                btnCancel.IsEnabled      = false;
                lstPhones.IsEnabled      = true;
                btnPrevious.IsEnabled    = true;
                btnNext.IsEnabled        = true;
                txtPhoneNumber.IsEnabled = false;
                txtSubscriber.IsEnabled  = false;
                txtPhoneNumber.SetBinding(TextBox.TextProperty, txtPhoneNumberBinding);
                txtSubscriber.SetBinding(TextBox.TextProperty, txtSubscriberBinding);
            }
            else
            if (action == ActionState.Delete)
            {
                try
                {
                    DataRow deleterow = phoneNumbersDataSet.PhoneNumbers.Rows[lstPhones.SelectedIndex];
                    deleterow.Delete();

                    tblPhoneNumbersAdapter.Update(phoneNumbersDataSet.PhoneNumbers);
                    phoneNumbersDataSet.AcceptChanges();
                }
                catch (DataException ex)
                {
                    phoneNumbersDataSet.RejectChanges(); MessageBox.Show(ex.Message);
                    MessageBox.Show(ex.Message);
                }
                btnNew.IsEnabled         = true;
                btnEdit.IsEnabled        = true;
                btnDelete.IsEnabled      = true;
                btnSave.IsEnabled        = false;
                btnCancel.IsEnabled      = false;
                lstPhones.IsEnabled      = true;
                btnPrevious.IsEnabled    = true;
                btnNext.IsEnabled        = true;
                txtPhoneNumber.IsEnabled = false;
                txtSubscriber.IsEnabled  = false;
                txtPhoneNumber.SetBinding(TextBox.TextProperty, txtPhoneNumberBinding);
                txtSubscriber.SetBinding(TextBox.TextProperty, txtSubscriberBinding);
            }
        }