C#的adapter.update命令不能将dataset的新记录行上传进数据库

Question

private void btn_AddBusinessInfo_Click(object sender, EventArgs e)
{
try
{
conn.Open();
ds = new DataSet();

            dap = new SqlDataAdapter("select * from BusinessInfo where State<>'删除'", conn);
            dap.Fill(ds, "BusinessInfo");

            dr = ds.Tables[0].NewRow();
            dr[1] = tb_BusinessName.Text.Trim();
            dr[2] = tb_BusinessContactName.Text.Trim();
            dr[3] = tb_BusinessTelephone.Text.Trim();
            dr[4] = tb_BusinessAddress.Text.Trim();
            dr[5] = "正常";
            ds.Tables[0].Rows.Add(dr);

            ds.AcceptChanges();
            SqlCommandBuilder scb = new SqlCommandBuilder(dap);
            dap.Update(ds, "BusinessInfo");

            dgv_BusinessInfoList.DataSource = ds.Tables[0];

            conn.Close();
        }
        catch (Exception)
        {
        }

问题描述：ds更新没有问题，DataGridView中也正确显示新记录，但是数据库中就是没有新记录，请大神审阅是哪个部分出了问题。
另参考：程序执行SqlCommandbuilder命令后，DataAdapter中没有添加InsertCommand属性![图片说明](https://img-ask.csdn.net/upload/201504/05/1428227510_312615.png)

Answer 1

参考：http://wenku.baidu.com/link?url=OdLxRQiNI2FvkJu1pCz3nh5ameIGkCAvBC2WjZ-_iPmpvQwQ5NcL2Xh1ygNLNAtiYtEXwm7Zm0o4hQgQtdfUHYCkUx-xMa6DUy_3IqCzlBW