using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.SqlClient;
namespace WindowsFormsApplication1
{
   // DataTable dataTable = null;
    public partial class Form2 : Form
    {
        public Form2()
        {
            InitializeComponent();
        }

        private void Form2_Load(object sender, EventArgs e)
        {
            //b1. tao ket noi
            string connectStr = "Data Source=C11-WS08;Initial Catalog=QLTV;User ID=sa"; //tuy hej quan tri csdl
            SqlConnection cnn = new SqlConnection();
            cnn.ConnectionString = connectStr;
            cnn.Open();
            //b2.
            string sql = "select * from TuaSach ts";

            //b3.chay sql
            SqlDataAdapter da = new SqlDataAdapter(sql, cnn);
            DataSet dataSet = new DataSet();
            da.Fill(dataSet);
            //b4
            if(dataSet.Tables.Count > 0)
            {
                cbDSTuaSach.DataSource = dataSet.Tables[0]; //load
                cbDSTuaSach.DisplayMember = "TuaSach";  //display
                cbDSTuaSach.ValueMember = "ma_tuasach"; //value
            }

            cnn.Close();

        }

        private void label1_Click(object sender, EventArgs e)
        {

        }

        private void label1_Click_1(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            string connectStr = "Data Source=C11-WS08;Initial Catalog=QLTV;User ID=sa"; //tuy hej quan tri csdl
            SqlConnection cnn = new SqlConnection();
            cnn.ConnectionString = connectStr;
            cnn.Open();
            //b2.
            string mats = cbDSTuaSach.SelectedValue.ToString();
            string sql = "select * from DauSach ds where ds.ma_tuasach = " + mats;

            //b3.chay sql
            SqlDataAdapter da = new SqlDataAdapter(sql, cnn);
            DataSet dataSet = new DataSet();
            da.Fill(dataSet);
            //b4
            if (dataSet.Tables.Count > 0)
            {
                gridDSDauSach.DataSource = dataSet.Tables[0]; //load
               // gridDSDauSach.s
            }
            cnn.Close();
        }

        private void gridDSDauSach_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {

        }
    }
}