linq-to-entities

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I need Linq Query for this SQL Query

\"select count(salary) from employee where employeeID = 10 gro开发者_如何学Goup by salary\" --- Its a SQLQuery.[详细]

2023-04-09 03:19 分类：问答
Trying to get a string concatenated in Linq2Entities query

I am trying to create a Dictionary<string, string> from the combined results of two string f开发者_如何转开发ields in an entity.[详细]

2023-04-08 14:21 分类：问答
Convert IEnumerable<T> to string[]

i have an entity called Product class Product { public Id { get; set; } public Name { get; set; } } and i have a list of all products:[详细]

2023-04-08 10:17 分类：问答
LINQ: The specified type member is not supported in LINQ

I am trying to run the linq statement below.I am getting the following error message: The specified type member \'CustomerID\' is not supported in LINQ to Entities.Only initializers, entity members,[详细]

2023-04-08 03:46 分类：问答
LINQ query records based on date array

I have a table (I am using Entity Model) and filtered that table using LINQ query which is working fine.[详细]

2023-04-08 00:42 分类：问答
Can IQueryable<> only contain instructions (in the form of expression tree) on how to get the initial sequence, but not

1) public class Query<T> : IQueryable<T> ... { ... public IEnumerator<T> GetEnumerator()[详细]

2023-04-07 20:50 分类：问答
MVC3/LINQ/EF4.1 selecting distinct col values from a result set?

How can I select a list of column values from a result set (as distinct) and put into a list? class T {int id; string name;}[详细]

2023-04-07 18:19 分类：问答
Entity Framework, how to manually produce inner joins with LinQ to entitites

Let\'s imagine I have an table called Foo with a primary key FooID and an integer non-unique column Bar. For some reason in a SQL query I have to join table Foo with itself multiple times, like this:[详细]

2023-04-07 15:14 分类：问答
Linq to Entities: Where clause containing ToString fails

I can do the following: var result = DB.Products.ToList()// .AsEnumerable() too .Where( p => p.ID.ToString() == ViewModel.ID);[详细]

2023-04-07 14:18 分类：问答
Custom Sorting in Linq to Entities based on QueryString

Spent all day trying to find ready to use solution for \"Sort data in LINQ bases on Query String\" without any results.[详细]

2023-04-07 10:38 分类：问答