using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Model;
using System.Data;
using System.Data.SqlClient;
namespace DAL
{
public class DBHelper
{
SqlConnection conn = new SqlConnection("Data Source=.;Initial Catalog=Class1608netA;Integrated Security=True");
public int ExecuteNonQuery(string sql)
{
conn.Open();
SqlCommand cmd = new SqlCommand(sql, conn);
int i = cmd.ExecuteNonQuery();
conn.Close();
return i;
}
public object ExecuteScalar(string sql)
{
conn.Open();
SqlCommand cmd = new SqlCommand(sql, conn);
object i = cmd.ExecuteScalar();
conn.Close();
return i;
}
public DataTable GetDataTable(string sql)
{
SqlDataAdapter sda = new SqlDataAdapter(sql,conn);
DataTable dt = new DataTable();
sda.Fill(dt);
return dt;
}
}
}