private void btnAdd_Click(object sender, EventArgs e) { if (CheckDate()) { GetMessage(); CreateDataRow(); if (!m_sell.AddMatchingInfo(m_lnqNewAndOld, out m_err)) { MessageDialog.ShowPromptMessage(m_err); } else { MessageDialog.ShowPromptMessage("添加成功!"); } dataGridView1.DataSource = m_sell.GetProductCodeMatchingInfo(); dataGridView1.Columns["序号"].Visible = false; PositioningRecord(m_dr); } }