/// <summary>
/// select from table using WHERE
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void buttonGetClient_Click(object sender, RoutedEventArgs e)
{
using (zikratiy_dbEntities db = new zikratiy_dbEntities())
{
Window_view View = new Window_view();
string lastName = textBoxLastName.Text;
var client = from View_Client in db.View_Client
where View_Client.last_name == lastName
select View_Client;
//select new
//{
// ID_client = View_Client.ID_client,
// last_name = View_Client.last_name,
// first_name = View_Client.first_name,
// phone = View_Client.phone,
// e_mail = View_Client.e_mail,
// city = View_Client.city,
// street = View_Client.street,
// house = View_Client.number_house,
// flat = View_Client.number_flat
//};
if (client.ToList().Capacity == 0)
{
MessageBox.Show(String.Format("Клієнт {0} відсутній в базі даних", lastName));
}
else
{
View.dataGridView.ItemsSource = client.ToList();
View.Show();
}
}
textBoxLastName.Text = "Input last name client";
}
/// <summary>
/// connection tables by using the operator JOIN and Orderby and Projection
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void buttonViewClientFirm_Click(object sender, RoutedEventArgs e)
{
using (zikratiy_dbEntities db = new zikratiy_dbEntities())
{
Window_view View = new Window_view();
var clientFirm = from cf in db.Client_firm
join p in db.Personal_info
on cf.personal_info_confidant equals p.ID_personal_info
join a in db.Address on cf.address_firm equals a.ID_address
orderby cf.name_firm
select new
{
cf.ID_firm, cf.name_firm,
last_name_confidant = p.last_name,
first_name_confidant = p.first_name,
phone_confidant = p.phone,
e_mail_firm = p.e_mail,
city_firm = a.city,
street = a.street,
house = a.number_house,
room = a.number_flat
};
View.dataGridView.ItemsSource = clientFirm.ToList();
View.Show();
}
}
/// <summary>
/// select all rows from table (virtual table)
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void buttonViewManager_Click(object sender, RoutedEventArgs e)
{
using (zikratiy_dbEntities db = new zikratiy_dbEntities())
{
Window_view View = new Window_view();
var manager = db.View_Manager.ToList();
View.dataGridView.ItemsSource = manager;
View.Show();
}
}
private void buttonViewClient_Click(object sender, RoutedEventArgs e)
{
using (zikratiy_dbEntities db = new zikratiy_dbEntities())
{
Window_view View = new Window_view();
var client = db.View_Client.OrderBy(p => p.last_name).ToList();
View.dataGridView.ItemsSource = client;
View.Show();
}
}
private void buttonRaitingSoftware_Click(object sender, RoutedEventArgs e)
{
using (zikratiy_dbEntities db = new zikratiy_dbEntities())
{
Window_view View = new Window_view();
var raitingSoftware = db.RaitingSoftware();
View.dataGridView.ItemsSource = raitingSoftware;
View.Show();
}
}
private void buttonTopManager_Click(object sender, RoutedEventArgs e)
{
int month = Convert.ToInt32(textBoxMonth.Text.Substring(0, 2));
int year = Convert.ToInt32(textBoxMonth.Text.Substring(3));
using (zikratiy_dbEntities db = new zikratiy_dbEntities())
{
Window_view View = new Window_view();
var topManager = db.TopManagerForMonth(month, 2016);
View.dataGridView.ItemsSource = topManager;
View.Show();
}
textBoxMonth.Text = "Input date in format: mm/yyyy";
}
/// <summary>
/// Average request client (with invested request)
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void buttonAverage_Click(object sender, RoutedEventArgs e)
{
using (zikratiy_dbEntities db = new zikratiy_dbEntities())
{
Window_view View = new Window_view();
var averageRequest = from request in (from requestClient in db.Request where requestClient.client != null select requestClient)
group request by request.client into clientRequest
let averageOrder = clientRequest.Average(request => request.result_price)
orderby averageOrder descending
select new
{
client = clientRequest.Key,
averageOrder
};
View.dataGridView.ItemsSource = averageRequest.ToList();
View.Show();
}
}
/// <summary>
/// connection tables by using the method Join()
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void buttonListSoftware_Click(object sender, RoutedEventArgs e)
{
using (zikratiy_dbEntities db = new zikratiy_dbEntities())
{
Window_view View = new Window_view();
var priceList = db.Price_software.Join(db.List_software, p => p.software, c => c.ID_software, (p, c) =>
new
{
id = p.article,
software = c.name_software,
regularPrice = p.regular_price,
discount = p.discount,
actionPrice = p.action_price,
note = p.note_action,
decription = p.item
});
View.dataGridView.ItemsSource = priceList.ToList();
View.Show();
}
}
