private void btnDelete_Click(object sender, EventArgs e) //根据样机码删除样机 { string phoneCode = this.txtPhoneCode.Text; PhoneBLL phonebll = new PhoneBLL(); if (txtPhoneCode.Text == "") { MessageBox.Show("请通过输入样机码进行样机删除", "提示"); return; } if (MessageBox.Show("确定要删除该条样机信息吗?", "Warning", MessageBoxButtons.OKCancel, MessageBoxIcon.Question) == DialogResult.OK) { if (phonebll.delByPhoneCode(phoneCode)) { MessageBox.Show("删除成功!", "提示"); } else { MessageBox.Show("删除失败,请检查信息是否正确", "提示"); } } else { //不执行任务 } phones = phonebll.getAllPhones(); PhoneDataGrid.DataSource = phones; this.txtPhoneCode.Clear(); this.txtPhoneName.Clear(); this.cbbPhoneStage.Text = ""; this.cbbInf1.Text = ""; this.cbbInf2.Text = ""; this.cbbInf3.Text = ""; this.cbbInf4.Text = ""; this.cbbPhoneOwner.Text = ""; }