using System;
using System.Data;
using System.Drawing;
using System.Windows.Forms;
using ServerExplorer.Code;
using System.Data.SqlClient;

namespace ServerExplorer.UI
{
    public partial class FrmDatos : Form
    {
        #region Declarations

        private readonly TablaDesc _tablaDesc;
        private readonly string _conexionString = string.Empty;

        #endregion

        #region Form life cycle

        public FrmDatos(TablaDesc tablaDesc, string conexionString)
        {
            InitializeComponent();
            _tablaDesc = tablaDesc;
            _conexionString = conexionString;
            LoadDataFromTable();
        }

        private void frmDatos_Load(object sender, EventArgs e) { }

        #endregion

        #region Events

        private void dgvDatos_CellDoubleClick(object sender, DataGridViewCellEventArgs e) { }

        private void dgvDatos_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
        {
            if (e.DesiredType == typeof(Image))
            {
                if (e.Value is DBNull || (e.Value is byte[] && ((byte[])e.Value).Length <= 0))
                {
                    e.Value = new Bitmap(1, 1);
                }
            }
        }

        private void btnRefresh_Click(object sender, EventArgs e)
        {
            LoadDataFromTable();
        }

        #endregion

        #region Private methods

        private void LoadDataFromTable()
        {
            Text = _tablaDesc.Esquema + @"." + _tablaDesc.Nombre;
            string tableFullName = "[" + _tablaDesc.Esquema + "].[" + _tablaDesc.Nombre + "]";
            var dt= new DataTable();
            var cnx = new SqlConnection(_conexionString);
            var da = new SqlDataAdapter( "select * from " + tableFullName, cnx);
            cnx.Open();
            da.Fill(dt);
            cnx.Close();
            dgvDatos.DataSource = dt;
        }

        #endregion
    }
}