Hello I have an issue with this query
var queryGrouped = queryFiltered
.GroupBy(c => new { c.Id, c.TableOneId, c.TableOneName, c.TableTwoId, c.TableTwoName, c.TableTwoCode, c.TableThreeId, c.TableThreeName, c.Description, c.EffectiveDate, c.CreatedBy, c.ServiceGroupName })
.DisableGuard()
.Select(cg => new Model
{
Id = cg.Key.Id,
TableOneId = cg.Key.TableOneId,
TableOneName = cg.Key.TableOneName,
TableTwoId = cg.Key.TableTwoId,
TableTwoCode = cg.Key.TableTwoCode,
TableTwoName = cg.Key.TableTwoName,
TableThreeId = cg.Key.TableThreeId,
TableThreeName = cg.Key.TableThreeName,
Description = cg.Key.Description,
EffectiveDate = cg.Key.EffectiveDate,
EffectiveDateText = cg.Key.EffectiveDate != null ? cg.Key.EffectiveDate.Value.ToString("MM/dd/yyyy") : string.Empty,
ServiceGroupName = string.Join(", ", cg.Select(g => g.ServiceGroupName).Distinct()),
CreatedBy = cg.Key.CreatedBy
}).OrderBy(x => x.ServiceGroupName).ToListAsync();
If i run this when try to order by the field ServiceGroup it returns this message
LinqToDB.Linq.LinqException: ''Join(", ", cg.Select(g => g.ServiceGroupName).Distinct())' cannot be converted to SQL.'
So I don't know how to order by this field ServiceGroupName, thanks for any answer.
I would suggest to make grouping on the client side. Note that I have removed ServiceGroupName from grouping key.
var data = await queryFiltered
.Select(c => new {
c.Id,
c.TableOneId,
c.TableOneName,
c.TableTwoId,
c.TableTwoName,
c.TableTwoCode,
c.TableThreeId,
c.TableThreeName,
c.Description,
c.EffectiveDate,
c.CreatedBy,
c.ServiceGroupName
})
.ToListAsync();
var queryGrouped = data
.GroupBy(c => new { c.Id, c.TableOneId, c.TableOneName, c.TableTwoId, c.TableTwoName, c.TableTwoCode, c.TableThreeId, c.TableThreeName, c.Description, c.EffectiveDate, c.CreatedBy })
.Select(cg => new Model
{
Id = cg.Key.Id,
TableOneId = cg.Key.TableOneId,
TableOneName = cg.Key.TableOneName,
TableTwoId = cg.Key.TableTwoId,
TableTwoCode = cg.Key.TableTwoCode,
TableTwoName = cg.Key.TableTwoName,
TableThreeId = cg.Key.TableThreeId,
TableThreeName = cg.Key.TableThreeName,
Description = cg.Key.Description,
EffectiveDate = cg.Key.EffectiveDate,
EffectiveDateText = cg.Key.EffectiveDate != null ? cg.Key.EffectiveDate.Value.ToString("MM/dd/yyyy") : string.Empty,
ServiceGroupName = string.Join(", ", cg.Select(g => g.ServiceGroupName).Distinct()),
CreatedBy = cg.Key.CreatedBy
})
.OrderBy(x => x.ServiceGroupName)
.ToList();
Related
I have flat collection of the following data (IQueryable<Article>) which was obtained by querying DB:
ArticleId
LanguageName
ArticleText
ExtraData1
ExtraData2
1
English
EngText1
Something1
Something2
1
English
EngText2
Another1
Another2
1
French
FraText1
Blabla1
2
English
EngText2
Ololo1
Blabla2
2
German
GerText1
Naturlisch2
Now I need to fill the IQueryable<AgregatedArticle>: the idea is grouping by ArticleId and putting repeating data into nested list:
public class AgregatedArticle {
public int ArticleId { get; set; }
public List<Data> ArticleTexts { get; set; }
public class Data {
public string LanguageName { get; set; }
public string ArticleText { get; set; }
}
}
Unfortunately, I cannot make it: I am getting various EfCore5 translation errors and don't know: if it's me or EfCore5 bugs or limitations. I wasted 3 days trying different approaches. Please help - I was unable to find suitable examples in Internet. The problem comes up when I try to fill ArticleTexts property.
Here is the simplified example:
private async Task<IQueryable<LawArticleAggregated>> GetLawArticlesGroupedById(DbSet<LawArticleDetail> dbSet, string userContentLangRestriction = null)
{
var dbContext = await GetDbContextAsync();
var articlesQuery =
(from articleIds in dbSet.Select(x => x.ArticleId).Distinct()
from articlesPerId in dbSet
.Where(x => x.ArticleId == articleIds.ArticleId)
join askedL in dbContext.Langs
.Where(l => l.LanguageCode == userContentLangRestriction)
on
articlesPerId.LanguageCode
equals
askedL.StringValue
into askedLanguages
from askedLawLanguage in askedLanguages.DefaultIfEmpty()
join fallbackL in dbContext.Langs
.Where(l => l.LanguageCode == CoreConstants.LanguageCodes.English)
on
articlesPerId.LanguageCode
equals
fallbackL.StringValue
into fallbackLanguages
from fallbackLanguage in fallbackLanguages.DefaultIfEmpty()
select new
{
ArticleId = articleIds.ArticleId,
ArticleText = articlesPerId.ArticleText,
LanguageName = askedLawLanguage.ShortName ?? fallbackLanguage.ShortName
})
.OrderBy(x => x.ArticleId).ThenBy(x => x.LanguageName).ThenBy(x => x.ArticleText);
await articlesQuery.LoadAsync();
var aggregatedArticleData = articlesQuery.Select(x => new
{
ArticleId = x.ArticleId,
ArticleText = x.ArticleText,
LanguageName = x.LanguageName
});
var aggregatedArticles = articlesQuery.Select(x => x.ArticleId).Distinct().Select(x => new ArticleAggregated
{
ArticleId = x.ArticleId,
ArticleTexts = aggregatedArticleData.Where(a => a.ArticleId == x.ArticleId)
.Select(x => new LawArticleAggregated.Data
{
ArticleText = x.ArticleText,
LanguageName = x.LanguageName
}).ToList()
});
return aggregatedArticles;
}
For this specific code the exception is as follows:
Unable to translate collection subquery in projection since the parent
query doesn't project key columns of all of it's tables which are
required to generate results on client side. This can happen when
trying to correlate on keyless entity or when using 'Distinct' or
'GroupBy' operations without projecting all of the key columns.
I think I have reverse engineered your query. Big difference that we cannot return IQueryable from this funcrtio, but prepared IEnumerable. So if you have pagination later, better to pass page info into function parameters.
private async Task<IEnumerable<LawArticleAggregated>> GetLawArticlesGroupedById(DbSet<LawArticleDetail> dbSet, string userContentLangRestriction = null)
{
var dbContext = await GetDbContextAsync();
var articlesQuery =
from article in dbSet
from askedLawLanguage in dbContext.Langs
.Where(askedLawLanguage => askedLawLanguage.LanguageCode == userContentLangRestriction && article.LanguageCode == askedLawLanguage.StringValue)
.DefaultIfEmpty()
from fallbackLanguage in dbContext.Langs
.Where(fallbackLanguage => fallbackLanguage.LanguageCode == CoreConstants.LanguageCodes.English && article.LanguageCode == fallbackLanguage.StringValue)
.DefaultIfEmpty()
select new
{
ArticleId = article.ArticleId,
ArticleText = article.ArticleText,
LanguageName = askedLawLanguage.ShortName ?? fallbackLanguage.ShortName
};
articlesQuery = articlesQuery
.OrderBy(x => x.ArticleId)
.ThenBy(x => x.LanguageName)
.ThenBy(x => x.ArticleText);
var loaded = await articlesQuery.ToListAsync();
// group on the client side
var aggregatedArticles = loaded.GroupBy(x => x.ArticleId)
.Select(g => new ArticleAggregated
{
ArticleId = g.Key,
ArticleTexts = g.Select(x => new LawArticleAggregated.Data
{
ArticleText = x.ArticleText,
LanguageName = x.LanguageName
}).ToList()
});
return aggregatedArticles;
}
I ended up with the following implementation (I show it "as is", without simplification from the first message to demonstrate the approach, slightly modified from the initial variant to use proper paging):
private async Task<IEnumerable<LawArticleAggregated>> GetLawArticlesGroupedByIdListAsync(
DbSet<LawArticleDetail> dbSet,
Expression<Func<IQueryable<LawArticleDetail>, IQueryable<LawArticleDetail>>> filterFunc,
int skipCount,
int maxResultCount,
string userContentLangRestriction = null,
CancellationToken cancellationToken = default
)
{
var dbContext = await GetDbContextAsync();
var articlesQuery =
(from articleIds in filterFunc.Compile().Invoke(dbSet).Select(x => new { x.TenantId, x.LawArticleId })
.Distinct().OrderBy(x => x.TenantId).OrderByDescending(x => x.LawArticleId).Skip(skipCount).Take(maxResultCount)
from articlesPerId in dbSet
.Where(x => x.TenantId == articleIds.TenantId && x.LawArticleId == articleIds.LawArticleId)
join askedL in dbContext.FixCodeValues
.Where(l =>
l.DomainId == CoreConstants.Domains.CENTRAL_TOOLS
&& l.CodeName == CoreConstants.FieldTypes.LANGUAGE
&& l.LanguageCode == userContentLangRestriction)
on
articlesPerId.LanguageCode
equals
askedL.StringValue
into askedLanguages
from askedLawLanguage in askedLanguages.DefaultIfEmpty()
join fallbackL in dbContext.FixCodeValues
.Where(l =>
l.DomainId == CoreConstants.Domains.CENTRAL_TOOLS
&& l.CodeName == CoreConstants.FieldTypes.LANGUAGE
&& l.LanguageCode == CoreConstants.LanguageCodes.English)
on
articlesPerId.LanguageCode
equals
fallbackL.StringValue
into fallbackLanguages
from fallbackLanguage in fallbackLanguages.DefaultIfEmpty()
select new
{
TenantId = articleIds.TenantId,
LawArticleId = articleIds.LawArticleId,
Shortcut = articlesPerId.Shortcut,
ArticleText = articlesPerId.ArticleText,
LanguageName = askedLawLanguage.ShortName ?? fallbackLanguage.ShortName
})
.OrderBy(x => x.TenantId).ThenByDescending(x => x.LawArticleId).ThenBy(x => x.Shortcut).ThenBy(x => x.LanguageName).ThenBy(x => x.ArticleText);
var articleList = await articlesQuery.ToListAsync(cancellationToken);
var aggregatedArticles = articleList.GroupBy(x => new { x.TenantId, x.LawArticleId })
.Select(g => new LawArticleAggregated
{
TenantId = g.Key.TenantId,
LawArticleId = g.Key.LawArticleId,
ArticleTexts = g.Select(x => new LawArticleAggregated.Data
{
Shortcut = x.Shortcut,
ArticleText = x.ArticleText,
LanguageName = x.LanguageName
}).ToList()
});
return aggregatedArticles;
}
private async Task<long> GetLawArticlesGroupedByIdCountAsync(
DbSet<LawArticleDetail> dbSet,
Expression<Func<IQueryable<LawArticleDetail>, IQueryable<LawArticleDetail>>> filterFunc,
CancellationToken cancellationToken = default
)
{
return await filterFunc.Compile().Invoke(dbSet).GroupBy(x => new { x.TenantId, x.LawArticleId }).LongCountAsync(cancellationToken);
}
I have two tables with similar data for body insurance and third party car insurance ... I have used enum in the model to separate the insurances and I want to do the creation operation for it .... There are two modes for each insurance. One case when that car does not have insurance yet and the second case when we want to extend it.
I wrote this code to create the form, but it encounters the following error
I also get an error on the name of the Create function.error = not all code paths return a value.
Please advise
public async Task<IActionResult> Create(int id, int type)
{
InsuranceViewModel model;
ViewBag.Type = type;
var companies = await _context.InsuranceCompany
.Where(e => e.IsActice)
.ToListAsync();
ViewData["CompanyList"] = new SelectList(companies, "Id", "CompanyName");
if ((InsuranceType)type == InsuranceType.Body)
{
var bodyInsurance = await _context.BodyInsurance
.Include(e => e.InsuranceCompany)
.FirstOrDefaultAsync(e => e.Id == id);
if (bodyInsurance == null)
{
model = new InsuranceViewModel
{
CompanyId = bodyInsurance.InsuranceCompanyId,
CompanyName = bodyInsurance.InsuranceCompany.CompanyName,
InsuranceType = InsuranceType.Body,
IssueDate = new DateTime(bodyInsurance.IssueDate).Ticks,
ExpireDate = new DateTime(bodyInsurance.ExpireDate).Ticks,
VehicleInformationId = id
};
}
else
{
var lastBody = await _context.BodyInsurance.Include(e => e.InsuranceCompany)
.Where(e => e.VehicleInformationId == id)
.OrderBy(e => e.ExpireDate)
.LastAsync();
model = new InsuranceViewModel
{
ExpireDate = new DateTime(lastBody.ExpireDate).AddYears(1).AddDays(1).Ticks,
CompanyId = lastBody.InsuranceCompanyId,
CompanyName = lastBody.InsuranceCompany.CompanyName,
InsuranceType = InsuranceType.Body,
IssueDate = new DateTime(lastBody.ExpireDate).AddDays(1).Ticks,
VehicleInformationId = id
};
}
}
else
{
if ((InsuranceType)type == InsuranceType.Thirdpart)
{
var thirdParty = await _context.ThirdPartyInsurance
.Include(e => e.InsuranceCompany)
.FirstOrDefaultAsync(e => e.Id == id);
if (thirdParty == null)
{
model = new InsuranceViewModel
{
CompanyId = thirdParty.InsuranceCompanyId,
CompanyName = thirdParty.InsuranceCompany.CompanyName,
InsuranceType = InsuranceType.Body,
IssueDate = new DateTime(thirdParty.IssueDate).Ticks,
ExpireDate = new DateTime(thirdParty.ExpireDate).Ticks,
VehicleInformationId = id
};
}
else
{
var lastThirdParty = await _context.ThirdPartyInsurance.Include(e => e.InsuranceCompany)
.Where(e => e.VehicleInformationId == id)
.OrderBy(e => e.ExpireDate)
.LastAsync();
model = new InsuranceViewModel
{
ExpireDate = new DateTime(lastThirdParty.ExpireDate).AddYears(1).AddDays(1).Ticks,
CompanyId = lastThirdParty.InsuranceCompanyId,
CompanyName = lastThirdParty.InsuranceCompany.CompanyName,
InsuranceType = InsuranceType.Body,
IssueDate = new DateTime(lastThirdParty.ExpireDate).AddDays(1).Ticks,
VehicleInformationId = id
};
}
}
return View(model);
}
I need a filter between two entity.
Have two tables 1.User 2.Product
Product map with the User table.
I am going to create a dynamic where filter.
I need to find out all the users which have 'test' product.
Conditions: if userFilter count is 0 then I need all test product with the respected user.
If userFilter is there and productFilter is there then below code is working but if userFilter is not there and productFilter is there then it returning 0 row. How can I find the users which have test product? ?
Here is my Code.
public IHttpActionResult GetFilter()
{
var userFilters = new List<Filter>()
{
new Filter { PropertyName = "Username" ,
Operation = Op .Equals, Value = "Karan" },
};
var productfilter = new List<Filter>()
{
new Filter { PropertyName = "Name" ,
Operation = Op .Equals, Value = "Test product" }
};
Func<User, bool> deleg = x => true;
Func<Product, bool> delegProduct = x => true;
if (userFilters.Count > 0)
{
deleg = ExpressionBuilder.GetExpression<User>(userFilters).Compile();
}
if (productfilter.Count > 0)
{
delegProduct = ExpressionBuilder.GetExpression<Product>(productfilter).Compile();
}
var resultt = _localmarketEntities.Users.Where(deleg)
.Select(x => new
{
x.Id,
x.Username,
Product = x.Products.Where(delegProduct).Select(y => new
{
y.Id,
y.Name
}).ToList()
})
.ToList();
return Ok(resultt);
}
if i understand correct, you need all users that have test product when userFiler count is 0.
List<User> res;
var user = _localmarketEntities.Users.Where(deleg).ToList();
if (user.Count == 0) {
res = _localmarketEntities.Products.Where(delegProduct).Select(q => new User() {
Id = q.Id,
Username = q.Username,
Product = q
}).ToList();
}
else {
res = _localmarketEntities.Users.Where(deleg)
.Select(x => new
{
x.Id,
x.Username,
Product = x.Products.Where(delegProduct).Select(y => new
{
y.Id,
y.Name
}).ToList()
})
.ToList();
}
I'm trying to join 4 tables using linq.
This is my code,
var query = Context.AanvraagV.Join(Context.IdnPartijMVSet, aanvraag => aanvraag.AlvNummer, partijMv => partijMv.AlvNummer, (aanvraag, partijMv) => new { aanvraag, partijMv })
.Join(Context.DossierVaststellingSet, aanvraag => aanvraag.aanvraag.AanvraagId, dossierVaststelling => dossierVaststelling.DossierVersieId, (aanvraag, dossierVaststelling) => new { aanvraag, dossierVaststelling })
.Join(Context.IdnPartijVoorkeurContactMVSet, aanvraag => aanvraag.aanvraag.partijMv.AlvNummer, partijVoorkeur => partijVoorkeur.AlvNummer, (aanvraag, partijVoorkeur) => new { aanvraag, partijVoorkeur });
Then I return a query and this is what I get
return query.Select(x => new ZoekResultaatDto{
AanvraagNummer = x.aanvraag.aanvraag.aanvraag.DossierNummer,
Versie = x.aanvraag.aanvraag.aanvraag.AanvraagVersie,
StartjaarAanvraag = x.aanvraag.aanvraag.aanvraag.AanvraagStartCampagne,
EindjaarAanvraag = x.aanvraag.aanvraag.aanvraag.AanvraagEindCampagne,
Maatregel = x.aanvraag.aanvraag.aanvraag.Maatregel,
Pakket = x.aanvraag.aanvraag.aanvraag.MaatregelPakket,
AanvraagType = x.aanvraag.aanvraag.aanvraag.Aanvragtype,
Eenheid = x.aanvraag.aanvraag.aanvraag.VerbintenisWaardeEenheid,
VerbintenisOppervlakte = x.aanvraag.aanvraag.aanvraag.VerbintenisWaarde,
KeuzeBevestiging = x.aanvraag.aanvraag.aanvraag.KeuzeBevestiging,
IndieningsdatumAanvraag = x.aanvraag.aanvraag.aanvraag.AanvraagIndieningsDatum,
Status = x.aanvraag.aanvraag.aanvraag.AanvraagStatus,
LandbouwerNummer = x.aanvraag.aanvraag.aanvraag.AlvNummer,
Naam = x.aanvraag.aanvraag.partijMv.Naam,
Rechtsvorm = x.aanvraag.aanvraag.partijMv.Rechtsvorm ,
Adres = string.Format("{0} {1} {2}", x.aanvraag.aanvraag.partijMv.Straat, x.aanvraag.aanvraag.partijMv.Huisnummer, x.aanvraag.aanvraag.partijMv.Bus),
Postcode = x.aanvraag.aanvraag.partijMv.Postcode,
Gemeente = x.aanvraag.aanvraag.partijMv.Gemeente,
EmailaAdres = x.partijVoorkeur.Email,
OpmerkingCode = x.aanvraag.dossierVaststelling.VaststellingCode,
OpmerkingOmschrijving = RefVaststellingResources.OMSCHRIJVING(x.aanvraag.dossierVaststelling)
}).ToList();
But this is not what I want. What i want is this. How can I change the joins to get this instead?
return query.Select(x => new ZoekResultaatDto{
AanvraagNummer = x.aanvraag.DossierNummer,
Versie = x.aanvraag.AanvraagVersie,
StartjaarAanvraag = x.aanvraag.AanvraagStartCampagne,
EindjaarAanvraag = x.aanvraag.AanvraagEindCampagne,
Maatregel = x.aanvraag.Maatregel,
Pakket = x.aanvraag.MaatregelPakket,
AanvraagType = x.aanvraag.Aanvragtype,
Eenheid = x.aanvraag.VerbintenisWaardeEenheid,
VerbintenisOppervlakte = x.aanvraag.VerbintenisWaarde,
KeuzeBevestiging = x.aanvraag.KeuzeBevestiging,
IndieningsdatumAanvraag = x.aanvraag.AanvraagIndieningsDatum,
Status = x.aanvraag.AanvraagStatus,
LandbouwerNummer = x.aanvraag.AlvNummer,
Naam = x.partijMv.Naam,
Rechtsvorm = x.partijMv.Rechtsvorm ,
Adres = string.Format("{0} {1} {2}", x.partijMv.Straat, x.partijMv.Huisnummer, x.partijMv.Bus),
Postcode = x.partijMv.Postcode,
Gemeente = x.partijMv.Gemeente,
EmailaAdres = x.partijVoorkeur.Email,
OpmerkingCode = x.dossierVaststelling.VaststellingCode,
OpmerkingOmschrijving = RefVaststellingResources.OMSCHRIJVING(x.dossierVaststelling)
}).ToList();
I did it. And also solved the problem of returning a AnonymousType
public class ZoekResultaatLijstDto
{
public AanvraagV aanvraag { get; set; }
public IdnPartijMV idnPartijMv { get; set; }
public DossierVaststelling dossierVast { get; set; }
public IdnPartijVoorkeurContactMV idnPartijVoor { get; set; }
}
public List<ZoekResultaatLijstDto> GetItems(ZoekCriteriaDto zoekCriteria)
{
IQueryable<ZoekResultaatLijstDto> query = Context.AanvraagV.Join(Context.IdnPartijMVSet, aanvraag => aanvraag.AlvNummer, partijMv => partijMv.AlvNummer, (aanvraag, partijMv) => new { aanvraag, partijMv })
.Join(Context.DossierVaststellingSet, aanvraag => aanvraag.aanvraag.AanvraagId, dossierVaststelling => dossierVaststelling.DossierVersieId,
(aanvraag, dossierVaststelling) => new { aanvraag, dossierVaststelling }).Select( j => new {j.aanvraag, j.aanvraag.partijMv, j.dossierVaststelling})
.Join(Context.IdnPartijVoorkeurContactMVSet, aanvraag => aanvraag.aanvraag.partijMv.AlvNummer, partijVoorkeur => partijVoorkeur.AlvNummer, (aanvraag, partijVoorkeur) => new { aanvraag, partijVoorkeur })
.Select(m => new ZoekResultaatLijstDto() { aanvraag = m.aanvraag.aanvraag.aanvraag, dossierVast = m.aanvraag.dossierVaststelling, idnPartijMv = m.aanvraag.partijMv, idnPartijVoor = m.partijVoorkeur });
return query.Select(zoekResultaat => zoekResultaat).ToList();
}
i wan to bind grid view with different kinds of conditions show here i'm use (dynamic)null concept for query declaration but at end of rest i can't getting field that associated with query.
here i put my code :
public void FillGrid(string GroupByText, string ColumnName, string SearchText)
{
using (DataClassesDataContext db = new DataClassesDataContext())
{
var query = (dynamic)null;
switch (GroupByText)
{
case "Enquiry":
query = db.Enquiries.Where(i => i.enttype_id.Equals("1")).OrderByDescending(i => i.Created_date).Select(i => new
{
Ref_no = i.Ref_no,
Name = db.Parties.Where(p => p.Id.Equals(i.party_id)).Select(p => p.Name).SingleOrDefault(),
StatusName = db.Status.Where(s => s.Id.Equals(i.status_id)).Select(s => s.StatusName).SingleOrDefault(),
CategoryName = db.Categories.Where(c => c.Id.Equals(i.category_id)).Select(c => c.category_name).SingleOrDefault(),
IsUregent = i.IsUregent,
Created_date = i.Created_date
}).FilterForColumn(ColumnName,SearchText).ToList();
break;
case "Visit":
query = db.Enquiries.Where(i => i.enttype_id.Equals("2")).OrderByDescending(i => i.Created_date).Select(i => new
{
Ref_no = i.Ref_no,
Name = db.Parties.Where(p => p.Id.Equals(i.party_id)).Select(p => p.Name).SingleOrDefault(),
StatusName = db.Status.Where(s => s.Id.Equals(i.status_id)).Select(s => s.StatusName).SingleOrDefault(),
CategoryName = db.Categories.Where(c => c.Id.Equals(i.category_id)).Select(c => c.category_name).SingleOrDefault(),
IsUregent = i.IsUregent,
Created_date = i.Created_date
}).FilterForColumn(ColumnName,SearchText).ToList();
break;
default:
query = db.Enquiries.OrderByDescending(i => i.Created_date).Select(i => new
{
Ref_no = i.Ref_no,
Name = db.Parties.Where(p => p.Id.Equals(i.party_id)).Select(p => p.Name).SingleOrDefault(),
StatusName = db.Status.Where(s => s.Id.Equals(i.status_id)).Select(s => s.StatusName).SingleOrDefault(),
CategoryName = db.Categories.Where(c => c.Id.Equals(i.category_id)).Select(c => c.category_name).SingleOrDefault(),
IsUregent = i.IsUregent,
Created_date = i.Created_date
}).FilterForColumn(ColumnName, SearchText).ToList();
break;
}
int count = 0;
DataSet myDataSet = new DataSet();
DataTable dt = new DataTable();
dt.Columns.Add(new DataColumn("Ref_no", typeof(string)));
dt.Columns.Add(new DataColumn("Name", typeof(string)));
dt.Columns.Add(new DataColumn("StatusName", typeof(int)));
dt.Columns.Add(new DataColumn("CategoryName", typeof(string)));
dt.Columns.Add(new DataColumn("IsUregent", typeof(bool)));
dt.Columns.Add(new DataColumn("Created_date", typeof(DateTime)));
foreach (var item in query)
{
if (item != null)
{
DataRow dr = dt.NewRow();
dr["Ref_no"] = item.//not founding field that
}
}
}
}
what is the return type of .FilterForColumn(ColumnName,SearchText) ?
if it does just filtering, without changing the Data Type, i think you can use this:
var query = Enumerable.Repeat(new
{
Ref_no = string.Empty,
Name = string.Empty,
StatusName = default(int),
CategoryName = string.Empty,
IsUregent = default(bool),
Created_date = default(DateTime)
}, 0)
.ToList();
instead of this:
var query = (dynamic)null;
and probably this can solve your problem