I have trouble selecting rows in a dynamic way.
foreach (var item in _listBox.SelectedItems)
{
Treinen treinData = (Treinen)item;
Debug.WriteLine(treinData.Name);
}
Here i get the selected items name from a listbox with about 60 names in, depending on the selection I want to get the representing SQL data for those selected. I think this requires to append a dynamic .Where clause.
ObjectQuery<Fouten> fouten = eventsEntities.Foutens;
loadedData =
(from fout in fouten
where datumStart <= fout.Datum && datumEnd >= fout.Datum
.... here should where be extended in some way, for example:
&& foreach (var item in _listBox.SelectedItems)
{
Treinen treinData = (Treinen)item;
where fout.Treinen.Name == treinData.Name
}
orderby fout.Datum, fout.Time
select new
{
Datum = fout.Datum,
Time = fout.Time,
FoutCode = fout.FoutCode,
Omschrijving = fout.Omschrijving,
Teller = fout.Teller,
Module = fout.Module.ToUpper(),
FoutId = fout.FoutId,
TreinId = fout.TreinId
}).AsEnumerable().Select(x => new Fouten
{
Datum = x.Datum,
Time = x.Time,
FoutCode = x.FoutCode,
Omschrijving = x.Omschrijving,
Teller = x.Teller,
Module = x.Module,
FoutId = x.FoutId,
TreinId = x.TreinId
})
.ToList();
Obviously that doesn't work but hopefully it makes sense to what I'm trying to accomplish. Right now I get the data for all items instead of the selected ones. Anyone has a idea on how to solve?
I suppose your "Treinen" has an ID-Field (or Property) in it and since you have your fout.TreinId it is easier to go for the ID.
you can fill your ID-list before going into the query and then just check if your ID is in the List:
List<int> treinenIds = new List<int>();
foreach (var item in _listBox.SelectedItems)
treinenIds.Add(((Treinen)item).Id);
ObjectQuery<Fouten> fouten = eventsEntities.Foutens;
loadedData =
(from fout in fouten
where datumStart <= fout.Datum && datumEnd >= fout.Datum
//where-clause
where treinenIds.Contains(fout.TreinId)
orderby fout.Datum, fout.Time
select new
{
Datum = fout.Datum,
Time = fout.Time,
FoutCode = fout.FoutCode,
Omschrijving = fout.Omschrijving,
Teller = fout.Teller,
Module = fout.Module.ToUpper(),
FoutId = fout.FoutId,
TreinId = fout.TreinId
}).AsEnumerable().Select(x => new Fouten
{
Datum = x.Datum,
Time = x.Time,
FoutCode = x.FoutCode,
Omschrijving = x.Omschrijving,
Teller = x.Teller,
Module = x.Module,
FoutId = x.FoutId,
TreinId = x.TreinId
})
.ToList();
I'm not sure if the .Contains is supported in the query but if it is then this code should work for your Example.
Related
I have a large List of objects (over 100k rows in a txt file). I have to do some data work with each item in the list I save the object to the database if it doesnt exist and if it does I increase a number column in the for the item and then update the database while saving the updated item.
If I use a regular foreach loop everything works out fine but it takes over 24 hours to finish.
The issue is that when I use a parallel loop the records do not match and sometimes I will get an error on the .Save() method that the item ID was changed.
THIS CODE WORKS
public List<SreckaIsplacena> UpisiUTabeleSerijski (List<SreckaTemp>srt)
{
_srecke = _glavniRepository.UcitajSamoaktivneSrecke().OrderByDescending(item => item.ID).ToList<Srecka>();
List<SreckaIsplacena> pomList = new List<SreckaIsplacena>();
SreckaIsplacena _isplacena;
foreach (SreckaTemp lt in srt)
{
string beznula = lt.sreIspBroj.TrimStart('0');
SreckeDobici srd = new SreckeDobici();
Srecka sr = (from s in _srecke
where s.Sifra == lt.sreSif && s.Serija == lt.sreSerija
select s).First();
List<SreckeDobici> srDob = _glavniRepository.DohvatiSreckeDobiciZaIsplatniBroj(sr, beznula);
if (srDob.Count == 1)
{
srd = srDob.ElementAt(0);
}
List<SreckaNagrade> sreckaNagrade = new List<SreckaNagrade>(_glavniRepository.DohvatiNagradeZaSrecku(sr.ID).OrderBy(item => item.SifraFox));
double iznos = lt.sreIznDob / lt.sreBrDob;
SreckaNagrade nag = (from sn in sreckaNagrade
where sn.Iznos == lt.sreIznDob
select sn).FirstOrDefault();
Odobrenje odo = new Odobrenje();
odo = odo.DohvatiOdobrenje(valutaGlavna.ID, lt.sreIsplatio).FirstOrDefault();
List<PorezSrecka> listaPoreza = _glavniRepository.UcitajPorezSrecka(valutaGlavna, odo, sr, nag.NagradaId);
List<SreckaIsplacena> sveIsplacene = _glavniRepository.DohvatiIsplaceneSreckeZaValutuIProdavacaSreckuNagraduNovo(valutaGlavna.ID, sr.ID, nag.NagradaId, lt.sreIsplatio);
if (sveIsplacene.Count > 1)
{
System.Windows.MessageBox.Show("Greska, ista srecka s istim dobitkom kod istog prodavaca u istoj valuti 2 put nadjena u bazi");
}
else if (sveIsplacene.Count == 1)
{
_isplacena = sveIsplacene.ElementAt(0);
_isplacena.BrojDobitaka = _isplacena.BrojDobitaka + lt.sreBrDob;
_isplacena.Update();
var index = pomList.FindIndex(r => r.ID == _isplacena.ID);
if (index != -1)
{
pomList[index] = _isplacena;
}
}
else if (sveIsplacene.Count==0)
{
_isplacena = new SreckaIsplacena();
decimal iz = Convert.ToDecimal(lt.sreIznDob);
_isplacena.BrojDobitaka = lt.sreBrDob;
_isplacena.Iznos = iz;
_isplacena.Nagrada = nag;
_isplacena.Prodavac = lt.sreIsplatio;
_isplacena.Valuta = valutaGlavna;
_isplacena.Srecka = sr;
_isplacena.Cijena = Convert.ToDecimal(sr.Cijena);
if (listaPoreza.Count == 1)
{
PorezSrecka ps = listaPoreza.ElementAt(0);
_isplacena.SreckaPorez = ps;
}
_isplacena.Save();
int ispID = _isplacena.ID;
if (ispID != 0)
{
srd.Sre_isplatio = lt.sreIsplatio;
srd.Sre_valuta = valutaGlavna;
srd.Update();
}
pomList.Add(_isplacena);
}
}
return pomList;
}
THIS CODE DOES NOT WORK
public List<SreckaIsplacena> UpisiSamoUTabele(ConcurrentBag<SreckaTemp> srt)
{
_srecke = _glavniRepository.UcitajSamoaktivneSrecke().OrderByDescending(item => item.ID).ToList<Srecka>();
List<SreckaIsplacena> pomList = new List<SreckaIsplacena>();
SreckaIsplacena _isplacena;
Parallel.ForEach(srt, (lt) =>
{
string beznula = lt.sreIspBroj.TrimStart('0');
SreckeDobici srd = new SreckeDobici();
Srecka sr = (from s in _srecke
where s.Sifra == lt.sreSif && s.Serija == lt.sreSerija
select s).First();
List<SreckeDobici> srDob = _glavniRepository.DohvatiSreckeDobiciZaIsplatniBroj(sr, beznula);
if (srDob.Count == 1)
{
srd = srDob.ElementAt(0);
}
List<SreckaNagrade> sreckaNagrade = new List<SreckaNagrade>(_glavniRepository.DohvatiNagradeZaSrecku(sr.ID).OrderBy(item => item.SifraFox));
SreckaNagrade nag = (from sn in sreckaNagrade
where sn.Iznos == lt.sreIznDob
select sn).FirstOrDefault();
Odobrenje odo = new Odobrenje();
odo = odo.DohvatiOdobrenje(valutaGlavna.ID, lt.sreIsplatio).FirstOrDefault();
List<PorezSrecka> listaPoreza = _glavniRepository.UcitajPorezSrecka(valutaGlavna, odo, sr, nag.NagradaId);
List<SreckaIsplacena> sveIsplacene = _glavniRepository.DohvatiIsplaceneSreckeZaValutuIProdavacaSreckuNagraduNovo(valutaGlavna.ID, sr.ID, nag.NagradaId, lt.sreIsplatio);
if (sveIsplacene.Count == 1)
{
_isplacena = sveIsplacene.ElementAt(0);
lock (_isplacena)
{
_isplacena.BrojDobitaka = _isplacena.BrojDobitaka + lt.sreBrDob;
_isplacena.Update();
var index = pomList.FindIndex(r => r.ID == _isplacena.ID);
if (index != -1)
{
pomList[index] = _isplacena;
}
}
}
else if (sveIsplacene.Count==0)
{
_isplacena = new SreckaIsplacena();
decimal iz = Convert.ToDecimal(lt.sreIznDob);
_isplacena.BrojDobitaka = lt.sreBrDob;
_isplacena.Iznos = iz;
_isplacena.Nagrada = nag;
_isplacena.Prodavac = lt.sreIsplatio;
_isplacena.Valuta = valutaGlavna;
_isplacena.Srecka = sr;
_isplacena.Cijena = Convert.ToDecimal(sr.Cijena);
lock(_isplacena)
{
if (listaPoreza.Count == 1)
{
PorezSrecka ps = listaPoreza.ElementAt(0);
_isplacena.SreckaPorez = ps;
}
_isplacena.Save();
int ispID = _isplacena.ID;
if (ispID != 0)
{
srd.Sre_isplatio = lt.sreIsplatio;
srd.Sre_valuta = valutaGlavna;
srd.Update();
}
pomList.Add(_isplacena);
}
}
});
return pomList;
}
I tried using ConcurrentBag instead of List but ran into an issue because ConcurrentBag does not have the FindIndex method (var index = pomList.FindIndex(r => r.ID == _isplacena.ID);). I know there is some way to take out the object and put back in but not sure how to do that and from what I read Lists should be ok if you use locking which I am.
Please help.
I have a requirement to copy objects along with its navigation properties and create new objects. Following is what I did:
// get parent location's work availability template
WorkAvailTemplate workAvailTemplate = locationsFromDb.Where(l => l.Location2 == null).SingleOrDefault().WorkAvailTemplates.First();
foreach (var loc in locationsToAddOrUpdate)
{
// add op-hours template only for the new locations (the ID sometimes can be -1
if (loc.LocationId < 1)
{
if (workAvailTemplate != null)
{
WorkAvailTemplate wt = new WorkAvailTemplate
{
Location = loc,
CreatedBy = this.CurrentUser.Id,
CreatedDate = DateTime.Now,
NumberOfRotations = workAvailTemplate.NumberOfRotations,
ActiveStatus = workAvailTemplate.ActiveStatus
};
ClientContext.WorkAvailTemplates.Add(wt);
var workAvailTemplateDays = workAvailTemplate.WorkAvailTemplateDays.ToList();
foreach (WorkAvailTemplateDay d in workAvailTemplateDays)
{
WorkAvailTemplateDay wd = new WorkAvailTemplateDay
{
WorkAvailTemplate = wt,
WeekNumber = d.WeekNumber,
DayNumber = d.DayNumber,
ChangedBy = this.CurrentUser.Id,
ChangedDate = DateTime.Now
};
ClientContext.WorkAvailTemplateDays.Add(wd);
foreach (var r in d.WorkAvailTemplateTimeRanges)
{
WorkAvailTemplateTimeRange wr = new WorkAvailTemplateTimeRange
{
WorkAvailTemplateDay = wd,
StartTime = r.StartTime,
EndTime = r.EndTime,
ChangedBy = this.CurrentUser.Id,
ChangedDate = DateTime.Now
};
ClientContext.WorkAvailTemplateTimeRanges.Add(wr);
}
}
}
}
}
I'm sure there's a better way to do this rather than creating new objects. Any thoughts?
Earlier, when I did this for a single Location object creation, i did as follow and it works fine.
WorkAvailTemplate workAvailTemplate = (from wat in ClientContext.WorkAvailTemplates
where wat.FkLocationId == newLocation.FkParentLocationId
select wat).SingleOrDefault();
if (workAvailTemplate != null)
{
workAvailTemplate.Location = newLocation;
ClientContext.WorkAvailTemplates.Add(workAvailTemplate);
var workAvailTemplateDays = from watd in ClientContext.WorkAvailTemplateDays
join wat in ClientContext.WorkAvailTemplates on watd.FkWorkAvailTemplateId equals wat.WorkAvailTemplateId
where wat.FkLocationId == newLocation.FkParentLocationId
select watd;
foreach (WorkAvailTemplateDay d in workAvailTemplateDays)
{
d.WorkAvailTemplate = workAvailTemplate;
var workAvailTimeRangePerDay = (from r in ClientContext.WorkAvailTemplateTimeRanges.AsEnumerable()
where r.FkWorkAvailTemplateDayId == d.WorkAvailTemplateDayId
select this.f(r, d, newLocation));
ClientContext.WorkAvailTemplateDays.Add(d);
ClientContext.WorkAvailTemplateTimeRanges.AddRange(workAvailTimeRangePerDay);
}
}
But when I did the same for mutiple objects in a loop, it only creates for the first Location object. I don't get any errors, but simply they don't get created for others.
I want to order my list by idEtatD but this attribute isn't my table primarykey or id it's a normal attribute migrated from another table,nut OrderBy or OrderByDescending didn't give me a result my list still not ordered by idEtatD.
public ActionResult ListeDemande( int? page)
{
traçabilitérepository=new TraçabilitéDemandeRepository(db);
var listdemandes = (from d in db.Demande_Gabarit
join t in db.Traçabilité_Demande_Gabarit
on d.id_demande equals t.iddemande into ThisList
from t in ThisList.DefaultIfEmpty()
select new
{
id_demande=d.id_demande,
NumDemande = d.NumDemande,
Emetteur = d.Emetteur,
Date = d.Date,
Ligne = d.Ligne.designation,
Etat = t.Etat_Demande_Gabarit.EtatDemande
}).ToList().Select(x => new DemandeViewModel()
{
NumDemande = x.NumDemande,
Emetteur = x.Emetteur,
Date = x.Date,
designation = x.Ligne,
EtatDemande = x.Etat,
id_demande = x.id_demande
});
int pageSize = 10;
int pageNumber = (page ?? 1);
return View(listdemandes.OrderByDescending(x => x.idEtatD).ToList().ToPagedList(pageNumber, pageSize));
}
Please I need your help and thank you.
You can order the items at the beginning, but you need to include it in the list:
traçabilitérepository = new TraçabilitéDemandeRepository(db);
var listdemandes = (from d in db.Demande_Gabarit
join t in db.Traçabilité_Demande_Gabarit
on d.id_demande equals t.iddemande into ThisList
from t in ThisList.DefaultIfEmpty()
orderby t.idEtatD descending
select new
{
id_demande = d.id_demande,
NumDemande = d.NumDemande,
Emetteur = d.Emetteur,
Date = d.Date,
Ligne = d.Ligne.designation,
Etat = t.Etat_Demande_Gabarit.EtatDemande,
idEtatD = XXXX
}).ToList().Select(x => new DemandeViewModel()
{
NumDemande = x.NumDemande,
Emetteur = x.Emetteur,
Date = x.Date,
designation = x.Ligne,
EtatDemande = x.Etat,
id_demande = x.id_demande
});
I am trying get data from the xml. Below is the code which
gets data from the XDocument and return list<t>.
However, p.Element("Sponsor") can sometimes be null. How can I check for the null values
var atClauseList = doc.Descendants(CLAUSE_GROUP_TAG).Descendants(AT_CLAUSE_TAG).Select(p => new AtClause()
{
ClauseNumber = (string)p.Element("Number"),
Sponsors = p.Element("Sponsor").Elements(SPONSOR_TAG).Select(y => y.Value)
.ToList(),
Page = p.Element("Sponsor").Element("aItem").Element("AmendText").Element("Page").ElementValueNull(),
Line = p.Element("Sponsor").Element("aItem").Element("AmendText").Element("Line").ElementValueNull(),
LineText = p.Element("Sponsor").Element("aItem").Element("AmendText").Nodes().OfType<XText>().FirstOrDefault().XTextValueNull(),
ItalicText = p.Element("Sponsor").Element("aItem").Element("AmendText").Element("Italic").ElementValueNull(),
ParaList = p.Element("Sponsor").Element("aItem").Element("AmendText").Elements("Para").Select(L => new Para
{
ParaText = (string)L,
Number = ((System.Xml.Linq.XElement)(L)).AttributeValueNull("Number"),
Quote = ((System.Xml.Linq.XElement)(L)).AttributeValueNull("Quote"),
}
).ToList()
}).ToList();
move your code out of an object initializer, and add some logic to it:
var atClauseList = new List<AtClause>();
foreach(var item in doc.Descendants(CLAUSE_GROUP_TAG).Descendants(AT_CLAUSE_TAG))
{
var atClause = new AtClause();
atClause.ClauseNumber = (string)item.Element("Number");
var sponsor = item.Element("Sponsor");
if (sponsor != null)
{
atClause.Sponsors = sponsor.Elements(SPONSOR_TAG).Select(y => y.Value).ToList();
atClause.Page = sponsor.Element("aItem").Element("AmendText").Element("Page").ElementValueNull();
atClause.Line = sponsor.Element("aItem").Element("AmendText").Element("Line").ElementValueNull();
atClause.LineText = sponsor.Element("aItem").Element("AmendText").Nodes().OfType<XText>().FirstOrDefault().XTextValueNull();
atClause.ItalicText = sponsor.Element("aItem").Element("AmendText").Element("Italic").ElementValueNull();
atClause.ParaList = sponsor.Element("aItem").Element("AmendText").Elements("Para").Select(L => new Para
{
ParaText = (string)L,
Number = ((System.Xml.Linq.XElement)(L)).AttributeValueNull("Number"),
Quote = ((System.Xml.Linq.XElement)(L)).AttributeValueNull("Quote"),
}).ToList();
atClauseList.Add(atClause);
}
You can use sequences rather than leaving the IEnumerable immediately:
var value = (string)p.Elements("Sponsor")
.Elements("aItem")
.Elements("AmendText")
.Elements("Page")
.SingleOrDefault()
After getting my join to work I seem to have gotten stuck on the count bit.
What I am attempting below is get a count of documents printed based on the join below.
What would the code be to get the count per 'guardiandocsrequired'?
var guardianEntityType = new {EntityTypeFK = "GUARDIAN"};
return (from d in dbContext.GuardianDocsRequireds
join p in dbContext.DocumentPrintingLogs on
new { docTypeFK = d.DocTypeFK, entityFK = d.GuardianFK } equals
new { docTypeFK = p.DocTypeFK, entityFK = p.EntityFK }
where d.GuardianFK == entityPK && p.ItemGroupFK == itemGroupID && p.EntityTypeFK == "GUARDIAN"
group d by new
{
d.GuardianFK,
d.DocTypeFK,
d.DocumentType.DocTypeDescription,
d.RequiredStatus
}
into res
select new DocumentsRequired
{
EntityPK = res.Key.GuardianFK,
EntityType = entityType,
DocTypeFK = res.Key.DocTypeFK,
DocTypeDescription = res.Key.DocTypeDescription,
RequiredStatus = res.Key.RequiredStatus,
PrintCount = ???
}
).ToList();
If it helps, I have written the sql to produce exactly what I require as follows:
SELECT gdr.DocRequiredID,gdr.RequiredDate,gdr.GuardianFK,gdr.DocTypeFK,gdr.RequiredStatus,
COUNT(dpl.DocPrintedID) AS documentsPrinted
FROM dbo.GuardianDocsRequired gdr
LEFT OUTER JOIN dbo.DocumentPrintingLog dpl ON gdr.DocTypeFK = dpl.DocTypeFK
AND gdr.GuardianFK = dpl.EntityFK
AND dpl.EntityTypeFK = 'GUARDIAN'
WHERE gdr.GuardianFK = #entityPK
GROUP BY gdr.DocRequiredID,gdr.RequiredDate,gdr.GuardianFK,gdr.DocTypeFK,gdr.RequiredStatus
Do you mean sth like this?
var guardiandocsrequired = (from d in dbContext.GuardianDocsRequireds
join p in dbContext.DocumentPrintingLogs on
new { docTypeFK = d.DocTypeFK, entityFK = d.GuardianFK } equals
new { docTypeFK = p.DocTypeFK, entityFK = p.EntityFK }
where d.GuardianFK == entityPK && p.ItemGroupFK == itemGroupID && p.EntityTypeFK == "GUARDIAN"
group d by new
{
d.GuardianFK,
d.DocTypeFK,
d.DocumentType.DocTypeDescription,
d.RequiredStatus
}
into res
select new DocumentsRequired
{
EntityPK = res.Key.GuardianFK,
EntityType = entityType,
DocTypeFK = res.Key.DocTypeFK,
DocTypeDescription = res.Key.DocTypeDescription,
RequiredStatus = res.Key.RequiredStatus,
PrintCount = ???
}
).ToList();
int cnt = guardiandocsrequired.Count;
return guardiandocsrequired;