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error with linq join


error with linq join

By : FalconBlitz
Date : January 02 2021, 06:48 AM
will help you The two types should be the same - which means they'll need the same property names as you're using anonymous types. Try this:
code :


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Linq Error "Could not find an implementation of the query pattern for source type 'System.Linq.IQueryable' Join Not

Linq Error "Could not find an implementation of the query pattern for source type 'System.Linq.IQueryable' Join Not


By : URVISH SUTHAR
Date : March 29 2020, 07:55 AM
I wish this helpful for you Array is a very loose type, and doesn't implement IEnumerable etc. You could try just switching the Array lines to var (let the compiler pick the type). If it still uses Array, then perhaps use .Cast() to specify the type (or Array.ConvertAll, etc).
From Array (without more information) all it knows is object.
String Convert error in Linq to entities join statement - This function can only be invoked from LINQ to Entities

String Convert error in Linq to entities join statement - This function can only be invoked from LINQ to Entities


By : a489489
Date : March 29 2020, 07:55 AM
this one helps. If you're performing this query on a DataTable then this is not Linq To Entities because you perform in in .NET memory. You need to perform the query with Entity Framework context.
LINQ Error in Simple Join - the type of one of the expressions in the join clause is incorrect

LINQ Error in Simple Join - the type of one of the expressions in the join clause is incorrect


By : Samet Kurumahmut
Date : March 29 2020, 07:55 AM
will be helpful for those in need If your properties have long and int? types, then you can try this join:
code :
var select2 = from si in db.San_Imovel
              join sic in db.San_Imovel_caracteristica
                            .Where(x => x.Imovel_Id.HasValue)
              on si.Imovel_Id equals (long)sic.Imovel_Id.Value
              where si.Credenciada_Id == credenciada_Id                    
              select new { ... }
LinQ Error linq joint type inference failed to call 'join' error

LinQ Error linq joint type inference failed to call 'join' error


By : HZit
Date : March 29 2020, 07:55 AM
it fixes the issue you cant use == when joining with Linq. You need to use equals.
Note that it is not the method .Equals(..) but the keyword
code :
from elogAlert  in yangkeeDBEntity.Yang_Kee_Logistics_Pte_Ltd_ELog_Tablet_Alert
join elogAlertDetail in  yangkeeDBEntity.Yang_Kee_Logistics_Pte_Ltd_ELog_Tablet_Alert_Details

on elogAlert.No_ equals elogAlertDetail.AlertID //this line has equals instead of ==

                        where elogAlert.No_ != null
                        where elogalertdetail.employee_id == driverid
                        select new
                        {
                            elogalertdetail.employee_id,
                            elogalertdetail.alert_id,
                            elogalertdetail.no_,
                            elogalertdetail.status,
                            elogalertdetail.created_by,
                            elogalertdetail.date_created,
                        };
C# LINQ Join Error

C# LINQ Join Error


By : Ryan Joseph Samonte
Date : March 29 2020, 07:55 AM
hope this fix your issue Right Join in LINQ is done by reversing join statements so correct one would be this:
code :
var vehiclePartType = from pt in context.PART_TYPE
                      join pa in context.PART_AVAILABILITY on pt.PART_TYPE_ID equals pa.PART_TYPE_ID into joined
                      from j in joined.DefaultIfEmpty()
                      where pt.VEHICLE_ID == 366
                      select new
                      {
                          PART_TYPE = pt,
                          PART_AVAILABILITY = j
                      };
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