private void MenuCancelSell_Click(object sender, EventArgs e) { if (this.lvSell.SelectedItems != null && this.lvSell.SelectedItems.Count > 0) { DialogResult dr = MessageBox.Show("将作废所选择的销售数据,请确认!", "警告", MessageBoxButtons.OKCancel, MessageBoxIcon.Question); if (dr == DialogResult.OK) { foreach (ListViewItem lvi in this.lvSell.SelectedItems) { Foundation.CancelSellNO(lvi.Tag.ToString()); //if (Foundation.CancelSellNO(lvi.Tag.ToString())) //{ // lvi.BackColor = Color.Red; // this.labelTotal.Text = (Convert.ToInt32(this.labelTotal.Text) - Convert.ToInt32(lvi.SubItems[9].Text)).ToString(); // this.labelTotalCount.Text = (Convert.ToInt32(this.labelTotalCount.Text) - Convert.ToInt32(lvi.SubItems[6].Text)).ToString(); //} } tabControlSell_SelectedIndexChanged(null, null); } } else { MessageBox.Show("请选择要作废的销售数据", "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning); } }