从Mysql中读取数据绑定Grid，然后在全部绑定sql

///获取Mysql里面的数据
protected void Button1_Click(object sender, EventArgs e)
{

///实例化强类型的数据集
macs_20140707TableAdapter data = new macs_20140707TableAdapter();
DataTable ds= data.GetDataBySelect();
GridView1.DataSource = ds;
GridView1.DataBind();

}

#region 插入sql
///

///
///
protected void Button2_Click(object sender, EventArgs e)
{
string connectionString = "server=.;database=gz.sunnywifi.com;uid=sa;pwd=123456";
SqlConnection conn = new SqlConnection(connectionString);
try
{
conn.Open();

for (int i = 0; i