All Questions
1,189
questions
1
vote
4
answers
47
views
Apply Group by to dictionary value
I have a Dictionary which key of string type and value of list of integer type, like this:
Dictionary<string, List<int>>.
Lets say I add elements to it:
Dictionary<string, List<int&...
- 23
0
votes
1
answer
59
views
Reading xml into LINQ format to check against log file data - Conditions in list format - linq not picking up reformated xml
I have a project that reads xml of expected build results for each build area, and compares against build logs to see if the build passed. Right now, the linq is showing each condition in a separate ...
- 3,797
0
votes
1
answer
28
views
LINQ subset results grouped from multi-table join
I have 4 tables:
USER:
-userKey
-userName
ROLE:
-roleKey
-roleDesc
PERMISSION:
-permissionKey
-permissionDesc
USERROLEPERMISSION:
-userKey
-roleKey
-permissionKey
Here is the db query...
select
u....
- 3
1
vote
1
answer
61
views
Group By in Entity Framework based on condition
I have a group by clause where I am selecting key, however my problem is my key is changing based on some condition, is there any chance I can set key in one line?
if (IsDefaultFund)
{
_summaries = (...
-1
votes
1
answer
118
views
how to use Linq groupby and where with date conditions in vb.net
I'm trying to use Linq groupby and where with date conditions in vb.net
Please Guide Me.
PIQ is total purchase quantity
SIQ is total sales quantity
BLC is total purchase quantity minus total sales ...
user22579796
0
votes
2
answers
164
views
Entity Framework Join with Group by select columns
I have 2 tables that I am trying to left join with a linq query
I want to left join 2 tables, i want to group multiple columns but I want to select specific columns and use datepart etc on some of the ...
- 63
0
votes
0
answers
136
views
EF Core + Net Core 8 RC2 : GroupBy in a subquery gave an exception on ToList()
This query was working in EF6:
var FamillesNonSaisies = db.CaracsIndivAffichees
.GroupBy(ci => ci.FamilleCarac).Select(g => new
{
Famille = g.Key.Intitule,
Ordre = g....
- 1
0
votes
0
answers
17
views
How to write Linq for group by time period and count calculation by this period
The following model contains the name of the airport and the dates of arrival flights:
public class FlightStatisticsModel
{
/// <summary>
/// Airport name
/// </summary>
...
- 1,297
0
votes
1
answer
314
views
LinqToDB.LinqToDBException error in group by linq query in nopcommerce
Here is my group by query
var query = (
from fee in _walletRepository.Table
group fee by fee.PartyId into groupResult
select new
{
partyId = groupResult.Select(x => x....
- 1,220
0
votes
1
answer
93
views
Adding a dynamic GroupBy expression to an IQueryable
I want to pass a dynamic GroupBy expression into an IQueryable. I'm already doing something similar with a Where clause that is working OK.
The purpose of the group by is then to allow my to extract ...
- 6,844
1
vote
2
answers
51
views
C# Grouping by calculated values isn't working
Why isn't this grouping correctly? I'm grouping by day of week and day of month, and I end up with four results, not three.
query.GroupBy(datapoint =>
{
var timeDimensionValue = (DateTime)...
- 559
0
votes
1
answer
37
views
.First()' could not be translated in EFCore 3 [duplicate]
Is there a decent work around to using .First() in Group By queries on Linq using EF Core 3.1?
Here is an example of a query reading from SQL
var test = from r in dc.Role
join f in ...
- 2,842
-1
votes
3
answers
89
views
LINQ Group by doesn't return the result as expected
I have an animal class:
public class Animals
{
public string Type { get; set; }
public string Gender { get; set; }
public int Amount { get; set; }
}
and a class Cost for the cost ...
- 1,202
1
vote
2
answers
82
views
EF Core GroupBy-Sum LINQ generating Unexpected SQL
I have the following LINQ query:
var data = await _context.Answers
.Where(q => q.Question != null)
.GroupBy(q => q.Choice)
.Select(g => new
{
g.Key,
Data = g....
0
votes
1
answer
47
views
c# linq Query on datatable groupby having count
I have a datatable and I need to perform the following query on it (sql):
SELECT C1, C2, C3, count(*)
FROM MyTable
group by C1, C2, C3
having COUNT (*) > 1
Can you point me to some code, in order ...
- 2,410