kursach/veloprokat2/tarif.xaml.cs

using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace veloprokat2
{
    /// <summary>
    /// Логика взаимодействия для Window2.xaml
    /// </summary>
    public partial class tarif : Window
    {
        public tarif()
        {
            InitializeComponent();

            SqlConnection connection = new SqlConnection("server=mssql; Trusted_Connection=YES;DataBase=gr692_kaa;");
            connection.Open();
            string cmd = "select ID as 'Номер тарифа', NameOfTarif as 'Название тарифа',cast(price as int) as 'Цена' from tarif";
            SqlCommand createcommand = new SqlCommand(cmd, connection);
            createcommand.ExecuteNonQuery();

            SqlDataAdapter sql = new SqlDataAdapter(createcommand);
            DataTable dt = new DataTable("Tarif");
            sql.Fill(dt);
            prodinfo.ItemsSource = dt.DefaultView;
            connection.Close();

        }

        private void Vixod(object sender, RoutedEventArgs e)
        {
            MainWindowProd MWP = new MainWindowProd();
            MWP.Show();
            Close();
        }

        private void Button_Search(object sender, RoutedEventArgs e)
        {
            if (Search.Text.Length > 0)
            {
                SqlConnection connection = new SqlConnection("server=mssql; Trusted_Connection=YES;DataBase=gr692_kaa;");
                connection.Open();
                string cmd = "select ID as 'Номер тарифа',NameOfTarif as 'Название тарифа',cast(price as int) as 'Цена' from Tarif" +
                             " where ( ID like '%" + Search.Text + "%' or NameOfTarif like '%" + Search.Text + "%' or Price like '%" + Search.Text + "%' )";
                SqlCommand createcommand = new SqlCommand(cmd, connection);
                createcommand.ExecuteNonQuery();

                SqlDataAdapter sql = new SqlDataAdapter(createcommand);
                DataTable dt = new DataTable("Tarif");
                sql.Fill(dt);
                prodinfo.ItemsSource = dt.DefaultView;
                connection.Close();

            }
            else if (Search.Text.Length == 0)
            {
                SqlConnection connection = new SqlConnection("server=mssql; Trusted_Connection=YES;DataBase=gr692_kaa;");
                connection.Open();
                string cmd = "select ID as 'Номер тарифа',NameOfTarif as 'Название тарифа',cast(price as int) as 'Цена' from Tarif";
                SqlCommand createcommand = new SqlCommand(cmd, connection);
                createcommand.ExecuteNonQuery();

                SqlDataAdapter sql = new SqlDataAdapter(createcommand);
                DataTable dt = new DataTable("Tarif");
                sql.Fill(dt);
                prodinfo.ItemsSource = dt.DefaultView;
                connection.Close();
            }
        }
    }
}