Questions tagged [linq-method-syntax]
38 questions
0
votes
1 answer
How to return custom objects using Except
I'm using ASP.NET MVC, C# and SQL Server.
I want to get a list of cars that are available for rent within a certain date, ie. not already rented out.
What I got now is something like taking all the cars from the cars table, except the ones that…
CAR1980
- 33
- 4
0
votes
3 answers
Cannot implicitly convert type 'System.Collections.Generic.List' to 'System.Linq.IQueryable'
This query is being compiled without errors:
var _entityList = context.customer
.Join(context.applications,
cust => cust.cust_id,
app => app.cust_id,
(cust, app) => new {…
Khadim Ali
- 2,406
- 2
- 26
- 56
0
votes
1 answer
The cast to value type 'Decimal' failed because the materialized value is null
I have the following code :
public ViewResult Stock(Guid id)
{
// Get the product form the database
var product = productRepository.GetById(id);
var viewModel = new ProductStockViewModel()
{
…
Marc
- 1,831
- 4
- 13
- 26
0
votes
2 answers
Entity Framework Simple Filter by NavigationProperty using LINQ Methods
I am learning EF and LINQ to EF. We are using LINQ Methods and not LINQ Expressions.
I am trying to do a very simple query from my 2 entities.
NavigationGroup is a one to many relation to NavigationGroupLocation. The Navigation Property in…
Jared
- 2,184
- 8
- 23
- 37
-1
votes
2 answers
Linq query with method syntax needed for two lists with type List
var fullMessagesList = new List(){
"This is Apple",
"This is mango",
"This is a Lemon",
"This is a Orange"
};
var partialMessagesList = new List(){
"Apple",
"mango",
};
I need a linq query with method syntax with returns "This is a…
Mudassir Hussain
- 514
- 4
- 16
-1
votes
2 answers
GroupBy with Linq to entities query
I have following classes:
public class OrderItem
{
public int Id { get; set; }
public ICollection NominalRoutings{ get; set; }
}
public class NominalRouting
{
public int Id { get; set; }
public DateTime PlanedDate…
Masoud
- 7,580
- 9
- 51
- 108
-3
votes
1 answer
linq convert query syntax to method syntax
How can I convert this query syntax to method syntax in linq:
return (from x in db.Table1
join y in db.Table1 on x.ID equals y.ID - 1
where Convert.ToInt32(y.ID) >= Convert.ToInt32(x.ID)
…
Laziale
- 7,259
- 39
- 131
- 229
-3
votes
1 answer
Do can I convert this query syntax linq expression to method syntax?
I've written this code to join two tables together from sql server, now I want to write this as in method syntax. How can I rewrite this code?
LinqToLoginDataContext lnqdore = new LinqToLoginDataContext();
var f = (from k in lnqdore.Table_Years
…
user3116296
- 17
- 3