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+using System;
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+using System.Collections.Generic;
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+using System.Linq;
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+using System.Text;
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+using System.Threading.Tasks;
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+using System.Windows;
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+using System.Windows.Controls;
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+using System.Windows.Data;
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+using System.Windows.Documents;
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+using System.Windows.Input;
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+using System.Windows.Media;
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+using System.Windows.Media.Imaging;
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+using System.Windows.Shapes;
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+using System.Windows.Threading;
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+using System.Data;
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+using System.Data.SqlClient;
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+
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+namespace HotelCalifornia
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+{
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+ /// <summary>
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+ /// Логика взаимодействия для ClientRoom.xaml
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+ /// </summary>
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+ public partial class ClientRoom : Window
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+ {
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+ public ClientRoom()
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+ {
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+ InitializeComponent();
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+ DispatcherTimer timer = new DispatcherTimer();
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+ timer.Tick += new EventHandler(Update_Timer_Tick);
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+ timer.Interval = new TimeSpan(0, 0, 1);
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+ timer.Start();
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+ }
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+
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+ SqlConnection con = new SqlConnection("Data Source=localhost;Initial Catalog=kursah;Integrated Security=True");
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+
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+ private void Update_Timer_Tick(object sender, EventArgs e)
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+ {
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+ timetxt.Text = DateTime.Now.ToString();
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+ }
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+
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+ private void Grid_MouseDown(object sender, MouseButtonEventArgs e)
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+ {
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+ DragMove();
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+ }
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+
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+ private void Close(object sender, RoutedEventArgs e)
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+ {
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+ Application.Current.Shutdown();
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+ }
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+
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+ private void WindMin_Click(object sender, RoutedEventArgs e)
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+ {
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+ this.WindowState = WindowState.Minimized;
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+ }
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+
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+ private void Back(object sender, RoutedEventArgs e)
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+ {
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+ MessageBoxResult result = MessageBox.Show("Вы хотите вернуться к предыдущему окну?", "Предупреждение", MessageBoxButton.YesNo, MessageBoxImage.Question);
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+ switch (result)
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+ {
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+ case MessageBoxResult.Yes:
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+ Variant variant = new Variant();
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+ this.Close();
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+ variant.Show();
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+ break;
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+ case MessageBoxResult.No:
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+ break;
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+ }
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+ }
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+
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+ private void dataClientRoom_SelectionChanged(object sender, SelectionChangedEventArgs e)
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+ {
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+ try
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+ {
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+ DataGrid gd = (DataGrid)sender;
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+ DataRowView rowView = gd.SelectedItem as DataRowView;
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+ if (rowView != null)
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+ {
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+ roomcombo.Text = rowView["Number_Room"].ToString();
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+ clientcombo.Text = rowView["LastName_Client"].ToString();
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+ }
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+ }
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+ catch (Exception ex)
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+ {
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+ MessageBox.Show("Возникла ошибка! " + ex.ToString(), "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
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+ }
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+ }
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+
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+ private void Add_Click(object sender, RoutedEventArgs e)
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+ {
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+ try
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+ {
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+ if (clientcombo.Text == "" || roomcombo.Text == "")
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+ {
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+ MessageBox.Show("Заполните все поля!", "Предупреждение", MessageBoxButton.OK, MessageBoxImage.Information);
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+ }
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+ else
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+ {
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+ con.Open();
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+ SqlCommand cmd = new SqlCommand("Select * from Room where Number_Room ='" + roomcombo.Text + "'", con);
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+ cmd.CommandType = CommandType.Text;
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+ SqlDataAdapter adapter = new SqlDataAdapter();
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+ adapter.SelectCommand = cmd;
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+ DataSet dataSet = new DataSet();
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+ adapter.Fill(dataSet);
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+ if (dataSet.Tables[0].Rows.Count > 0)
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+ {
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+ string idroom = dataSet.Tables[0].Rows[0]["ID_Room"].ToString();
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+ SqlCommand cmd1 = new SqlCommand("Select * from Client where LastName_Client ='" + clientcombo.Text + "'", con);
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+ cmd1.CommandType = CommandType.Text;
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+ SqlDataAdapter adapter1 = new SqlDataAdapter();
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+ adapter1.SelectCommand = cmd1;
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+ DataSet dataSet1 = new DataSet();
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+ adapter1.Fill(dataSet1);
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+ if (dataSet1.Tables[0].Rows.Count > 0)
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+ {
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+ string idclient = dataSet1.Tables[0].Rows[0]["ID_Client"].ToString();
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+ SqlCommand cmd2 = new SqlCommand("Select * from RoomClient where ID_Client = '"+ idclient.ToString() +"'", con);
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+ cmd2.CommandType = CommandType.Text;
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+ SqlDataAdapter adapter2 = new SqlDataAdapter();
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+ adapter2.SelectCommand = cmd2;
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+ DataSet dataSet2 = new DataSet();
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+ adapter2.Fill(dataSet2);
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+ if (dataSet2.Tables[0].Rows.Count > 0)
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+ {
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+ con.Close();
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+ MessageBox.Show("У клиента уже есть комната!", "Предупреждение", MessageBoxButton.OK, MessageBoxImage.Information);
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+ }
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+ else
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+ {
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+ string reg = "INSERT INTO RoomClient (ID_Room,ID_Client) VALUES('" + idroom.ToString() + "','" + idclient.ToString() + "')";
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+ SqlDataAdapter dataAdapter = new SqlDataAdapter(reg, con);
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+ dataAdapter.SelectCommand.ExecuteNonQuery();
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+ con.Close();
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+ showgrid();
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+ roomcombo.Text = "";
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+ clientcombo.Text = "";
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+ MessageBox.Show("Клиент заселен в комнату!", "Предупреждение", MessageBoxButton.OK, MessageBoxImage.Information);
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+ }
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+ }
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+ }
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+ }
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+ }
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+ catch (Exception ex)
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+ {
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+ con.Close();
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+ MessageBox.Show("Возникла ошибка! " + ex.ToString(), "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
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+ }
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+ }
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+
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+ private void Delete_Click(object sender, RoutedEventArgs e)
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+ {
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+ if (roomcombo.Text == "" || clientcombo.Text == "")
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+ {
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+ MessageBox.Show("Поле не выбрано! Выберите нужное поле!", "Предупреждение", MessageBoxButton.OK, MessageBoxImage.Information);
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+ }
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+ else
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+ {
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+ try
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+ {
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+ con.Open();
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+ SqlCommand cmd = new SqlCommand("Select * from Room where Number_Room ='" + roomcombo.Text + "'", con);
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+ cmd.CommandType = CommandType.Text;
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+ SqlDataAdapter adapter = new SqlDataAdapter();
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+ adapter.SelectCommand = cmd;
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+ DataSet dataSet = new DataSet();
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+ adapter.Fill(dataSet);
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+ if (dataSet.Tables[0].Rows.Count > 0)
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+ {
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+ string idroom = dataSet.Tables[0].Rows[0]["ID_Room"].ToString();
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+ SqlCommand cmd1 = new SqlCommand("Select * from Client where LastName_Client ='" + clientcombo.Text + "'", con);
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+ cmd1.CommandType = CommandType.Text;
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+ SqlDataAdapter adapter1 = new SqlDataAdapter();
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+ adapter1.SelectCommand = cmd1;
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+ DataSet dataSet1 = new DataSet();
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+ adapter1.Fill(dataSet1);
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+ if (dataSet1.Tables[0].Rows.Count > 0)
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+ {
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+ string idclient = dataSet1.Tables[0].Rows[0]["ID_Client"].ToString();
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+ SqlCommand cmd2 = new SqlCommand("Select * from RoomClient where ID_Client = '" + idclient.ToString() + "' and ID_Room = '" + idroom.ToString() + "'", con);
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+ cmd2.CommandType = CommandType.Text;
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+ SqlDataAdapter adapter2 = new SqlDataAdapter();
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+ adapter2.SelectCommand = cmd2;
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+ DataSet dataSet2 = new DataSet();
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+ adapter2.Fill(dataSet2);
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+ if (dataSet2.Tables[0].Rows.Count > 0)
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+ {
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+ string sql = "DELETE FROM RoomClient WHERE ID_Room = '" + idroom.ToString() + "' and ID_Client = '"+idclient.ToString()+"'";
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+ SqlDataAdapter dataAdapter = new SqlDataAdapter(sql, con);
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+ dataAdapter.SelectCommand.ExecuteNonQuery();
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+ con.Close();
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+ showgrid();
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+ roomcombo.Text = "";
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+ clientcombo.Text = "";
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+ MessageBox.Show("Запись удалена!", "Предупреждение", MessageBoxButton.OK, MessageBoxImage.Information);
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+ }
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+ else
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+ {
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+ con.Close();
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+ roomcombo.Text = "";
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+ clientcombo.Text = "";
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+ MessageBox.Show("Такой записи нет!", "Предупреждение", MessageBoxButton.OK, MessageBoxImage.Information);
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+ }
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+ }
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+ }
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+ }
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+ catch (Exception ex)
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+ {
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+ con.Close();
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+ MessageBox.Show("Возникла ошибка! " + ex.ToString(), "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
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+ }
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+ }
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+ }
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+
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+ private void Window_Loaded(object sender, RoutedEventArgs e)
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+ {
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+ fillroomcombo();
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+ fillclientcombo();
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+ showgrid();
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+ }
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+
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+ void showgrid()
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+ {
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+ try
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+ {
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+ con.Open();
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+ string sql = "SELECT Number_Room, Client.LastName_Client From Room inner join RoomClient on Room.ID_Room = RoomClient.ID_Room inner join Client on RoomClient.ID_Client = Client.ID_Client";
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+ SqlDataAdapter dataAdapter = new SqlDataAdapter(sql, con);
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+ DataTable data = new DataTable("RoomClient");
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+ dataAdapter.Fill(data);
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+ dataclientroom.ItemsSource = data.DefaultView;
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+ dataAdapter.Update(data);
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+ con.Close();
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+ dataclientroom.Columns[0].Header = "Номер комнты";
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+ dataclientroom.Columns[1].Header = "Фамилия клиента";
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+ }
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+ catch (Exception ex)
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+ {
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+ MessageBox.Show("Возникла ошибка! " + ex.ToString(), "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
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+ }
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+ }
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+
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+ void fillroomcombo()
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+ {
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+
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+ try
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+ {
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+ roomcombo.Items.Clear();
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+ con.Open();
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+ SqlCommand sql = con.CreateCommand();
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+ sql.CommandType = CommandType.Text;
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+ sql.CommandText = "Select Number_Room from Room WHERE Status_Room = 1";
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+ sql.ExecuteNonQuery();
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+ DataTable dt = new DataTable();
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+ SqlDataAdapter da = new SqlDataAdapter(sql);
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+ da.Fill(dt);
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+ foreach (DataRow dr in dt.Rows)
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+ {
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+ roomcombo.Items.Add(dr["Number_Room"].ToString());
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+ }
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+ con.Close();
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+ }
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+ catch (Exception ex)
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+ {
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+ con.Close();
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+ MessageBox.Show("Возникла ошибка! " + ex.ToString(), "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
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+ }
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+ }
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+ void fillclientcombo()
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+ {
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+ try
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+ {
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+ clientcombo.Items.Clear();
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+ con.Open();
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+ SqlCommand sql = con.CreateCommand();
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+ sql.CommandType = CommandType.Text;
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+ sql.CommandText = "Select LastName_Client from Client";
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+ sql.ExecuteNonQuery();
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+ DataTable dt = new DataTable();
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+ SqlDataAdapter da = new SqlDataAdapter(sql);
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+ da.Fill(dt);
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+ foreach (DataRow dr in dt.Rows)
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+ {
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+ clientcombo.Items.Add(dr["LastName_Client"].ToString());
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+ }
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+ con.Close();
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+ }
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+ catch (Exception ex)
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+ {
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+ con.Close();
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+ MessageBox.Show("Возникла ошибка! " + ex.ToString(), "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
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+ }
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+ }
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+
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+ private void Refresh_Click(object sender, RoutedEventArgs e)
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+ {
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+ showgrid();
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+ roomcombo.Text = "";
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+ clientcombo.Text = "";
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+ }
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+ }
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+}
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gr682_bpv