convertion of ObjectResult> type to int

In a call to 'join' on nullable and non-nullable ints, type inference failed.

Compare Int? and Int using the add....Value... relating to the nullable property...var result = from emp in employees join dept in departments on new { Source = emp.EmployeeID } equals new { Source = dept.EmployeeID.Value };

C# - when to use public int virtual, and when to just use public int

Could anybody explain to me:...The meaning of the word "virtual" in this context...This was well-resolved by other users, who provided excellent references....Is it required to use "virtual"?...It varies. It is both required and unnecessary at different times....Why do some individuals use "virtual" technology while others do not?...They make use o...

Cannot implicitly convert type System.Data.Entity.Core.Objects.ObjectResult to System.Data.Objects.ObjectResult

None of these fixes worked for me when I experienced the bug (I was already utilizing...System.Data.Entity.Core.Objects... Moreover, it was in the...context.tt... , etc)....I finally realized the issue was between the chair and the keyboard. Even though the saved proc ended with a choose, I was attempting to:...MyStoredProc_Result r = dbcontext.MyS...

entity framework property can't be set to string, has to be nullable int

The 'EmpGipNumber' property on 'Employee' could not be set to a 'System.String' value. You must set this property to a non-null value of type 'System.Int32'....I'm receiving the following problem, and the EmpGipNumber attribute of my Employee Model is declared as follows:...public virtual int? EmpGipNumber {get;set;} ...Why is it complaining whe...

LINQ LEFT JOIN on Nullable<int>

When I need to perform a Join on a nullable field, I do this....Initially Linq:...var projectDetails = from p in context.Project join u in context.User on p.AssignedUserID equals u.UserID into lj from x in lj.DefaultIfEmpty() select new { ProjectID = p.ProjectID, ProjectName = p.Name, ...

EF6 Map column of type int to entity property type bool

I want to translate a table with an int column that only has the values 0 or 1 to a property of type bool on my entity using Entity Framework 6 (EF6)....By having a property that is not mapped use the property that is mapped in its get'er and set'er in this manner, I would like to accomplish this without the requirement for two properties for the s...

Adding int property, EF keeps making it nullable column?

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EntityFramework database first - type mapping - map binary(8) from SQL to int in C#

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Cannot implicitly convert type 'System.Data.Entity.Core.Objects.ObjectResult<>' to 'int'

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Entity Framework making nullable unsigned int field's value as null while saving into database

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