public static List <Balance> GetBalances(string fileName)
{
List <Source> sources = GetSources(fileName);
XDocument xml;
try
{
xml = XDocument.Load(fileName);
}
catch (Exception ex)
{
formErrorMessage frm = new formErrorMessage("Операция: получение описаний балансов",
new Tuple <string, string>("Невозможно загрузить файл " + fileName, ex.Message));
frm.ShowDialog();
return(null);
}
List <Balance> result = new List <Balance>();
try
{
foreach (XElement element in xml.Descendants("balance"))
{
List <BalanceComponent> components = new List <BalanceComponent>();
foreach (XElement component in element.Descendants("component"))
{
components.Add(new BalanceComponent(component.Attribute("sign").Value,
(BalanceSides)Enum.Parse(typeof(BalanceSides), component.Attribute("side").Value, true),
sources.First(s => s.Id == component.Attribute("source").Value),
component.Attribute("channel").Value,
component.Attribute("method").Value == "показания" ?
CalculateMethods.integral :
CalculateMethods.interval));
}
result.Add(new Balance(element.Attribute("name").Value,
components));
}
}
catch (Exception ex)
{
formErrorMessage frm = new formErrorMessage("Операция: получение описаний балансов",
new Tuple <string, string>("Невозможно прочитать файл " + fileName,
ex.Message + Environment.NewLine + "Elements added by this point: " + result.Count));
frm.ShowDialog();
return(null);
}
return(result);
}
public static string ChannelName(Source source, string channelID)
{
object result;
using (SqlConnection cn = new SqlConnection(ConnectionString(source)))
{
try
{
cn.Open();
}
catch (Exception ex)
{
formErrorMessage dlg = new formErrorMessage("Операция: получение имени канала",
new Tuple <string, string>("Не удалось подключиться к базе данных:",
ex.Message + Environment.NewLine + "Connection string = " +
cn.ConnectionString));
dlg.ShowDialog();
return("");
}
SqlCommand cmd = cn.CreateCommand();
cmd.CommandText = source.SQL.Replace("{x}", channelID);
try
{
result = cmd.ExecuteScalar();
}
catch (Exception ex)
{
formErrorMessage dlg = new formErrorMessage("Операция: получение имени канала",
new Tuple <string, string>("Ошибка при выполнении запроса к БД",
ex.Message + Environment.NewLine + Environment.NewLine + cmd.CommandText));
dlg.ShowDialog();
return("");
}
}
if (result == null || Convert.IsDBNull(result))
{
formErrorMessage dlg = new formErrorMessage("Операция: получение имени канала",
new Tuple <string, string>("Запрос вернул пустое значение",
source.SQL.Replace("{x}", channelID)));
dlg.ShowDialog();
return("");
}
return(result.ToString());
}
public static List <Source> GetSources(string fileName)
{
XDocument xml;
try
{
xml = XDocument.Load(fileName);
}
catch (Exception ex)
{
formErrorMessage frm = new formErrorMessage("Операция: получение источников",
new Tuple <string, string>("Невозможно загрузить файл " + fileName, ex.Message));
frm.ShowDialog();
return(null);
}
List <Source> result = new List <Source>();
try
{
foreach (XElement element in xml.Descendants("source"))
{
result.Add(new Source(element.Attribute("id").Value,
element.Descendants("server").First().Value,
element.Descendants("database").First().Value,
element.Descendants("user").First().Value,
element.Descendants("password").First().Value,
element.Descendants("component").First().Value));
}
}
catch (Exception ex)
{
formErrorMessage frm = new formErrorMessage("Операция: получение источников",
new Tuple <string, string>("Невозможно прочитать файл " + fileName,
ex.Message + Environment.NewLine + "Elements added by this point: " + result.Count));
frm.ShowDialog();
return(null);
}
return(result);
}
private void BtnCalc_Click(object sender, EventArgs e)
{
this.Cursor = Cursors.WaitCursor;
int leftRow = 2;
int rightRow = 2;
double totalIN = 0;
double totalOUT = 0;
double consumption = 0;
if (lstBalances.SelectedIndex >= 0)
{
dgvResult.Rows.Clear();
Balance b = c.Balances[lstBalances.SelectedIndex];
dgvResult.RowCount = Math.Max(
b.Components.Count(comp => comp.Side == BalanceSides.IN),
b.Components.Count(comp => comp.Side == BalanceSides.OUT)) + 2;
foreach (BalanceComponent component in b.Components)
{
try
{
consumption = DataProvider.GetConsumption(component.Source,
component, dtpFrom.Value, dtpTill.Value);
}
catch (Exception ex)
{
formErrorMessage dlg = new formErrorMessage("Опреация: вычисление потребления",
new Tuple <string, string>(
ex.Message,
(ex.InnerException != null) ?
ex.InnerException.Message :
"No additional info"));
dlg.ShowDialog();
this.Cursor = Cursors.Default;
return;
}
switch (component.Side)
{
case BalanceSides.IN:
dgvResult.Rows[leftRow].Cells[0].Value = component.Name;
dgvResult.Rows[leftRow].Cells[1].Value = consumption.ToString("N0",
System.Globalization.CultureInfo.CurrentCulture.NumberFormat);
totalIN += consumption;
leftRow++;
break;
case BalanceSides.OUT:
dgvResult.Rows[rightRow].Cells[3].Value = component.Name;
dgvResult.Rows[rightRow].Cells[2].Value = consumption.ToString("N0",
System.Globalization.CultureInfo.CurrentCulture.NumberFormat);
totalOUT += consumption;
rightRow++;
break;
}
dgvResult.Refresh();
}
dgvResult.Rows[1].DefaultCellStyle.Font =
new Font(dgvResult.DefaultCellStyle.Font, FontStyle.Bold);
dgvResult.Rows[1].Cells[0].Value = "ИТОГО:";
dgvResult.Rows[1].Cells[1].Value = totalIN.ToString("N0",
System.Globalization.CultureInfo.CurrentCulture.NumberFormat);
dgvResult.Rows[1].Cells[2].Value = totalOUT.ToString("N0",
System.Globalization.CultureInfo.CurrentCulture.NumberFormat);
if (totalIN == 0 && totalOUT == 0)
{
formErrorMessage dlg = new formErrorMessage("Опреация: вычисление небаланса",
"На ноль делить нельзя!");
dlg.ShowDialog();
this.Cursor = Cursors.Default;
return;
}
dgvResult.Rows[0].DefaultCellStyle.Font =
new Font(dgvResult.DefaultCellStyle.Font, FontStyle.Bold);
dgvResult.Rows[0].DefaultCellStyle.BackColor = dgvResult.DefaultCellStyle.BackColor;
dgvResult.Rows[0].Cells[0].Value = "Небаланс=";
double disbalance = Math.Abs(totalIN - totalOUT);
dgvResult.Rows[0].Cells[1].Value = disbalance.ToString("N0",
System.Globalization.CultureInfo.CurrentCulture.NumberFormat) +
" кВт-ч";
disbalance = 2 * disbalance / (totalIN + totalOUT);
dgvResult.Rows[0].Cells[2].Value = disbalance.ToString("P2",
System.Globalization.CultureInfo.CurrentCulture.NumberFormat);
this.Cursor = Cursors.Default;
}
}
