第一層：default.aspx
public partial class _Default : System.Web.UI.Page
{
//private const string PARM_A2 = "@a2";
//private const string SQL_INSERT_A2 = "insert into a (a2) values (@a2)";
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
string tx = TextBox1.Text;
insert.insertsort(tx, "123");
}
protected void Button2_Click(object sender, EventArgs e)
{
DataTable mytable = new DataTable();
mytable = select.selectsort();
GridView2.DataSource = mytable;
GridView2.DataBind();
Response.Write("2323");
}
}
第2層： xxxx.cs
public static DataTable selectsort()
{
SqlConnection conn = new SqlConnection();
SqlCommand cmd = new SqlCommand();
DataTable table = new DataTable();
conn.ConnectionString = ConfigurationManager.ConnectionStrings["ACDataConnectionString"].ConnectionString;
cmd.CommandType = CommandType.Text;
cmd.CommandText = "select * from a";
cmd.Connection = conn;
SqlDataAdapter apt = new SqlDataAdapter();
apt.SelectCommand = cmd;
apt.Fill(table);
return table;
}
public static void insertsort(string tx,string id)
{
SqlConnection conn = new SqlConnection();
SqlCommand cmd = new SqlCommand();
DataTable datatable = new DataTable();
SqlDataReader datareader;
conn.ConnectionString = ConfigurationManager.ConnectionStrings["ACDataConnectionString"].ConnectionString;
cmd.CommandType = CommandType.Text;
cmd.CommandText = "insert into a (a2,a3) values (@a2,@a3)";
cmd.Connection = conn;
SqlParameter parm1 = new SqlParameter("@a2", SqlDbType.Text);
SqlParameter parm2 = new SqlParameter("@a3", SqlDbType.Text);
parm1.Value = tx;
parm2.Value = "123";
cmd.Parameters.Add(parm1);
cmd.Parameters.Add(parm2);
cmd.Connection.Open();
cmd.ExecuteNonQuery();
cmd.Dispose();
conn.Dispose();
}
第3層數據庫。。
這樣的結構 訪問數據庫比較好