string strConn = "Data Source=ZStone;Initial Catalog=Test;Persist Security Info=True;User ID=sa;Password=amazing";
SqlConnection conn = new SqlConnection(strConn);
string SQL = "SELECT Count(*) FROM Guest";
SqlCommand Comm = new SqlCommand(SQL, conn);
conn.Open();
Label1.Text = Comm.ExecuteNonQuery().ToString();为什么是-1呢?
SqlConnection conn = new SqlConnection(strConn);
string SQL = "SELECT Count(*) FROM Guest";
SqlCommand Comm = new SqlCommand(SQL, conn);
conn.Open();
Label1.Text = Comm.ExecuteNonQuery().ToString();为什么是-1呢?
Label1.Text = Comm.ExecuteScalar().ToString();