I'm trying to construct a Linq statement to be used from a client with the Sharepoint (2010) object model.
This is the problematic piece of code:
var result = news.Where(n => (bool)n["Online"]
&& ((DateTime)n["StartDate"] <= DateTime.Now && (DateTime)n["StopDate"] >= DateTime.Now));
if (currentUser.IsAgUser())
result = result.Where(n => (string)n["Role"] != "AG-ADMIN");
var filteredNews = sharepointContext.LoadQuery(result);
When the if parte is executed and so another Where is added to result, I get the followin error when LoadQuerying it.
The query expression 'value(Microsoft.SharePoint.Client.ListItemCollection).Where(n => (Convert(n.get_Item("Online")) AndAlso ((Convert(n.get_Item("StartDate")) <= DateTime.Now) AndAlso (Convert(n.get_Item("StopDate")) >= DateTime.Now)))).Where(n => (Convert(n.get_Item("Role")) != "AG-ADMIN"))' is not supported.
Where is the error coming from? Thanks
It seems like SharePoint doesn't support several wheres.
Cheap solution:
var result = currentUser.IsAgUser()
? news.Where(n => (bool)n["Online"]
&& ((DateTime)n["StartDate"] <= DateTime.Now && (DateTime)n["StopDate"] >= DateTime.Now) && (string)n["Role"] != "AG-ADMIN")
: news.Where(n => (bool)n["Online"]
&& ((DateTime)n["StartDate"] <= DateTime.Now && (DateTime)n["StopDate"] >= DateTime.Now));
var filteredNews = sharepointContext.LoadQuery(result);
Related
I have this IEnumerable<>, but I cannot seem to find a way to both apply the .Where() and an .OrderBy()
ActionResult<IEnumerable<Shippingschedule>> Shippingschedule = await _context.Shippingschedules.Where(x => x.Text.Contains(shipname) && (x.StartDate >= DateTime.Today.AddMonths(-3) && x.StartDate <= DateTime.Today.AddMonths(3))).ToListAsync();
I want to apply an .OrderBy(), but how?
I tried ...
ActionResult<IEnumerable<Shippingschedule>> Shippingschedule = await _context.Shippingschedules.Where(x => x.Text.Contains(shipname) && (x.StartDate >= DateTime.Today.AddMonths(-3) && x.StartDate <= DateTime.Today.AddMonths(3))),
.OrderBy() ..
I can't get it to work
Thanks
Stupid me, the answer was staring me in the face ...
Break up the methods.
ActionResult<IEnumerable<Shippingschedule>> Shippingschedule = await _context.Shippingschedules
.Where(x => x.Text.Contains(shipname) && x.StartDate >= DateTime.Today.AddMonths(-3) && x.StartDate <= DateTime.Today.AddMonths(3))
.OrderBy(x => x.StartDate)
.ToListAsync();
Hi I'm trying to filter my result with a date.
What I tried so far:
var lastYear = (DateTime.Now.Year) - 1;
var salesLastYear = _documentService.GetDocuments(
d => d.DocumentTypeId == saleDocumentId &&
d.EffectiveOnUtc.Contains(lastYear))
.Select(d => d.Id).ToList();
var salesLastYear = _documentService.GetDocuments(
d => d.DocumentTypeId == saleDocumentId &&
(d.EffectiveOnUtc.Year == lastYear))
.Select(d => d.Id).ToList();
Both gave no errors in visual studio, but did raise an exeption during execution.
Also tried to convert both the values to a string, but that also failed.
Working on the assumption that your EffectiveOnUtc is a DateTime, and you want to filter to records within the previous calendar year:
int lastYear = DateTime.Now.Year - 1;
DateTime minDate = new DateTime(lastYear, 1, 1);
DateTime maxDate = minDate.AddYears(1);
var salesLastYear = _documentService.GetDocuments(
d => d.DocumentTypeId == saleDocumentId
&& d.EffectiveOnUtc >= minDate
&& d.EffectiveOnUtc < maxDate)
Select(d => d.Id).ToList();
I am trying to get all #events where that have a FiscalYear.id inIList<int> years. I am using any() but it is throwing the following stacktrace error:
Unrecognised method call:
System.Linq.Enumerable:Boolean Any[TSource](System.Collections.Generic.IEnumerable`1[TSource], System.Func`2[TSource,System.Boolean])
Any Ideas? Here is the code:
FindAllPaged(int eventTypeId, IList<int> aors, IList<int> years)
{
IList<Domain.Event> results =
session.QueryOver<Event>()
.Where(#event => !#event.IsDeleted &&
#event.EventType.Id == eventTypeId &&
years.Any(y => y == #event.FiscalYear.Id))
}
Looks like you are trying to use a Linq method in QueryOver. This isn't supported. Try using the Linq provider instead:
FindAllPaged(int eventTypeId, IList<int> aors, IList<int> years)
{
IList<Domain.Event> results =
session.Query<Event>()
.Where(#event => !#event.IsDeleted &&
#event.EventType.Id == eventTypeId &&
years.Any(y => y == #event.FiscalYear.Id))
}
I also encountered the same exception message
Unrecognised method call:
System.Linq.Enumerable:Boolean Any[TSource](System.Collections.Generic.IEnumerable1[TSource], System.Func2[TSource,System.Boolean])
when using IqueryOver with Contains method
Ex:
var departmentTypesArray = criteria.DepartmentTypes.ToArray();
qover = qover.Where(p => departmentTypesArray.Contains(p.DepartmentType));
when i check the database, i don't have any records inside the table that i am making query.
when i changed my query with Restrictions, then it works for me
qover = qover.WhereRestrictionOn(p => .DepartmentType).IsIn(departmentTypesArray);
Try using the Contains method instead:
IList<Domain.Event> results = session
.QueryOver<Event>()
.Where(e => !#event.IsDeleted &&
#event.EventType.Id == eventTypeId &&
years.Contains(#event.FiscalYear.Id))
.ToList();
Or build your restrictions the long way using IsIn:
IList<Domain.Event> results = session
.QueryOver<Event>()
.Where(e => !#event.IsDeleted && #event.EventType.Id == eventTypeId)
.And(Restrictions.On<Event>(#event => #event.FiscalYear.Id)
.IsIn(years.ToArray()))
.ToList();
You could try this:
IList<Domain.Event> results = session.QueryOver<Event>().ToList().FindAll(e => !e.IsDeleted && e.Id.Equals(eventTypeId) && years.Contains(e.FiscalYear.Id))
I'm busy rewriting a system and are using Linq queries to extract data from the database. I am used to plain old TSQL and stored procedures so my Linq skills are not the best.
I have a sql query that I try to rewrite in Linq that contains a join, where clause and IN statements. I do get it right but when I run the sql query I get a different value as from the Linq query. Somewhere I'm missing something and can't find the reason.
Here is the SQL:
select
isnull(Sum(QtyCC) + Sum(QtyEmployee), 0) *
isnull(Sum(UnitPrice), 0)[TotalRValue]
from
tbl_app_KGCWIssueLines a
inner join tbl_app_KGCWIssue b on b.IssueNrLnk = a.IssueNrLnk
where
b.CreationDate >= '2011-02-01' and
a.IssueNrLnk IN (
select
IssueNrLnk
from
tbl_app_KGCWIssue
where
CustomerCode = 'PRO002' and
ISNULL(Tier1,'') = 'PRO002' and
ISNULL(Tier2,'') = 'HAMD01' and
ISNULL(Tier3,'') = '02' and
ISNULL(Tier4,'') = '02001' and
ISNULL(Tier5,'') = 'PTAHQ001' and
ISNULL(Tier6,'') = '035' and
ISNULL(Tier7,'') = '' and
ISNULL(Tier8,'') = '' and
ISNULL(Tier9,'') = '' and
ISNULL(Tier10,'') = ''
)
And here is the Linq:
ctx.ObjectContext.tbl_app_KGCWIssue
.Join(ctx.ObjectContext.tbl_app_KGCWIssueLines,
i => i.IssueNrLnk, l => l.IssueNrLnk, (i, l) => new { i, l })
.Where(o => o.i.CreationDate >= IntervalStartDate)
.Where(p => ctx.ObjectContext.tbl_app_KGCWIssue
.Where(a =>
a.CustomerCode == CustomerCode &&
a.Tier1 == employee.Tier1 &&
a.Tier2 == employee.Tier2 &&
a.Tier3 == employee.Tier3 &&
a.Tier4 == employee.Tier4 &&
a.Tier5 == employee.Tier5 &&
a.Tier6 == employee.Tier6 &&
a.Tier7 == employee.Tier7 &&
a.Tier8 == employee.Tier8 &&
a.Tier9 == employee.Tier9 &&
a.Tier10 == employee.Tier10)
.Select(i => i.IssueNrLnk)
.Contains(p.l.IssueNrLnk))
.Sum(p => p.l.UnitPrice * (p.l.QtyEmployee + p.l.QtyCC));
In my code below, is there any way I can use the results in the object 'WasteRecordsExcluded' to join with searchResults, essentially excluding the WasteId's I don't want.
If I debug to the last line I get the error :
base {System.SystemException} = {"The query contains references to items defined on a different data context."}
Or if joining is impossible then i could change bHazardous from TRUE to FALSE and FALSE to TRUE and do some kind of 'NOT IN' comparison.
Going bananas with this one, anyone help? Kind Regards :
var allWaste = _securityRepository.FindAllWaste(userId, SystemType.W);
var allWasteIndicatorItems = _securityRepository.FindAllWasteIndicatorItems();
// First get all WASTE RECORDS
var searchResults = (from s in allWaste
join x in allWasteIndicatorItems on s.WasteId equals x.WasteId
where (s.Description.Contains(searchText)
&& s.Site.SiteDescription.EndsWith(searchTextSite)
&& (s.CollectedDate >= startDate && s.CollectedDate <= endDate))
&& x.EWC.EndsWith(searchTextEWC)
select s).Distinct();
var results = searchResults;
if (hazardous != "-1")
{
// User has requested to filter on Hazardous or Non Hazardous only rather than Show All
var WasteRecordsExcluded = (from we in _db.WasteIndicatorItems
.Join(_db.WasteIndicators, wii => wii.WasteIndicatorId, wi => wi.WasteIndicatorId, (wii, wi) => new { wasteid = wii.WasteId, wasteindicatorid = wii.WasteIndicatorId, hazardtypeid = wi.HazardTypeId })
.Join(_db.HazardTypes, w => w.hazardtypeid, h => h.HazardTypeId, (w, h) => new { wasteid = w.wasteid, hazardous = h.Hazardous })
.GroupBy(g => new { g.wasteid, g.hazardous })
.Where(g => g.Key.hazardous == bHazardous && g.Count() >= 1)
select we);
// Now join the 2 object to eliminate all the keys that do not apply
results = results.Where(n => WasteRecordsExcluded.All(t2 => n.WasteId == t2.Key.wasteid));
}
return results;
Maybe something like this:
.....
var results = searchResults.ToList();
.....
.....
.Where(g => g.Key.hazardous == bHazardous && g.Count() >= 1)
select we).ToList();
.....