/// <summary>
/// Заполнить базу данных
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button2_Click(object sender, EventArgs e)
{
int cnt = 0;
using (ModelExchangeRate db = new ModelExchangeRate())
{
cnt = db.Currency.Count();
}
if (((int)cnt > 0) && MessageBox.Show("В базе данных есть записи. Вы уверены, что хотите продолжить?", "", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.No)
{
return;
}
string dataUrl = @"http://www.cbr.ru/scripts/XML_daily.asp?date_req=" + DateTime.Now.ToString("dd.MM.yyyy");
XDocument xDocument = XDocument.Load(dataUrl);
XElement root = xDocument.Root;
List <Valute> valutes = (from valute in root.Elements("Valute")
select new Valute()
{
Id = (string)valute.Attribute("ID"),
NumCode = (string)valute.Element("NumCode"),
CharCode = (string)valute.Element("CharCode"),
Nominal = (int)valute.Element("Nominal"),
Name = (string)valute.Element("Name"),
Value = Convert.ToDecimal((string)valute.Element("Value"))
}).ToList();
foreach (Valute v in valutes)
{
using (ModelExchangeRate db = new ModelExchangeRate())
{
Currency c = new Currency()
{
Id = v.Id,
NumCode = v.NumCode,
CharCode = v.CharCode,
Nominal = v.Nominal,
Name = v.Name
};
db.Currency.Add(c);
db.SaveChanges();
}
}
for (var date = new DateTime(2021, 01, 01); date <= DateTime.Now; date = date.AddDays(1))
{
GetDailyRate(date);
}
}
string GetCursValuteFromDB(DateTime dateTime, string valut)
{
using (ModelExchangeRate db = new ModelExchangeRate())
{
SqlParameter id_char = new SqlParameter("@id_char", valut);
SqlParameter dt = new SqlParameter("@date", dateTime);
decimal rate = db.Database.SqlQuery <decimal>("SELECT * FROM [dbo].[GetRate] (@id_char,@date)", new object[] { id_char, dt }).FirstOrDefault();
if (rate == 0)
{
MessageBox.Show("Курс не найден");
}
return(rate.ToString());
}
}
static void GetDailyRate(DateTime dt)
{
string dataUrl = @"http://www.cbr.ru/scripts/XML_daily.asp?date_req=" + dt.ToString("dd.MM.yyyy");
XDocument xDocument = XDocument.Load(dataUrl);
XElement root = xDocument.Root;
List <DailyRate> dr = (from valute in root.Elements("Valute")
select new DailyRate()
{
IdCurrency = (string)valute.Attribute("ID"),
Rate = Convert.ToDecimal((string)valute.Element("Value")),
Dt = dt
}).ToList();
using (ModelExchangeRate db = new ModelExchangeRate())
{
db.DailyRate.AddRange(dr);
db.SaveChanges();
}
}