编程批量添加区域名称（树形结构表）

ssqy表是5级结构的区域树形表，设了4个字段。在网上找到了浙江省所有的地市、县市和基层乡镇，添加是苦差事，编程事半功倍。在添加第5层的乡镇时，使用了以下方法：

        private void Savebutton_Click(object sender, EventArgs e)
        {
            Array myarray = this.textBox1.Text.Split(',');//转化为字符串数组
            for (int i = 0; i < myarray.Length - 1; i++)
            {
                DataRow drx = this.dataSet1.Tables["ssqy"].NewRow();
                drx["ssqyID"] = DbHelperACE.GetMaxID("ssqyID", "ssqy");
                drx["区域名称"] = myarray.GetValue(i);//数组取值用法
                drx["区域层级"] = 5;
                drx["上级区域"] = short.Parse(this.comboBox1.SelectedValue.ToString());//combox控件真麻烦，取值需要双重转换
                this.dataSet1.Tables["ssqy"].Rows.Add(drx);
                this.ssqyTableAdapter.Update(this.dataSet1);

            }
                //this.ssqyTableAdapter.Update(this.dataSet1);//这句放在这里出错，不知道为什么？
       }

DbHelperACE.GetMaxID()方法见 <a target=_blank href="http://blog.youkuaiyun.com/luchuanbo/article/details/4430666">http://blog.youkuaiyun.com/luchuanbo/article/details/4430666</a>

//修改后的程序
        private void Savebutton_Click(object sender, EventArgs e)
        {
            Array myarray = this.textBox1.Text.Split(',');
            short ssqyIDAddOne = short.Parse(DbHelperACE.GetMaxID("ssqyID", "ssqy").ToString());
            for (int i = 0; i < myarray.Length - 1; i++)
            {
                DataRow drx = this.dataSet1.Tables["ssqy"].NewRow();
                drx["ssqyID"] = ssqyIDAddOne++;
                drx["区域名称"] = myarray.GetValue(i);
                drx["区域层级"] = 5;
                drx["上级区域"] = short.Parse(this.comboBox1.SelectedValue.ToString());
                this.dataSet1.Tables["ssqy"].Rows.Add(drx);
                //this.ssqyTableAdapter.Update(this.dataSet1);
            }
            this.ssqyTableAdapter.Update(this.dataSet1);
        }