async private void Menu_clear_db_Click(object sender, EventArgs e) { if (MessageBox.Show($"确定要清空工艺【{this.cb_processItem.Text}】的所有数据?", "提示", MessageBoxButtons.OKCancel, MessageBoxIcon.Information) == DialogResult.Cancel) { return; } await serviceClient.DeleteAllStationAsync(this.cb_processItem.Text.Trim()); InitCurrentProcessItem(); SelectStationList(this.cb_processItem.Text.Trim()); }