private void btn_OK_Click(object sender, EventArgs e) { if (string.IsNullOrEmpty(radTextStart.Text) || string.IsNullOrEmpty(radTextEnd.Text)) { MessageBox.Show("请选择开始时间和结束时间"); return; } if (null != m_historyForm) { m_historyForm.showEnd(false); bool bSuccess = m_historyForm.queryInit(false); if (bSuccess) { m_historyForm.exportData(); } else { return; } } this.Close(); }