linq-to-entities

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trying to use single condition in sorting datagrid view column

I am using below function if i click the datagrid view column header the entire datagrid view column will be sorted ....[详细]

2023-04-01 14:54 分类：问答
Inserting multiple objects using EntityFramework?

I build u开发者_运维百科p stuff that I need into an IEnumerable and then I need to insert the collection into the database, but can\'t figure how. Please take a look at my code snippet:[详细]

2023-04-01 12:58 分类：问答
Help with Linq to Entities query

I am trying to increase my knowledge of linq so I would like to create the following query without using a stored procedure but I am no开发者_如何学Got really sure how to structure it.[详细]

2023-04-01 10:37 分类：问答
Calling custom (formatting) method on LINQ to Entities

I\'m using EF 4.1 and I\'m trying to enumerate a company list for a grid. I have two options in the current project: select all companies from the DbContext (Entities) and load them into an object fro[详细]

2023-04-01 10:01 分类：问答
Linq Query with Include Doesn't Appear to be Return Proper Results in EF 4.0

I\'m using Entity Framework 4.0 and I\'m running into a problem with the following query: IQueryable<user> users =[详细]

2023-04-01 08:06 分类：问答
Entity Framework multiple relationships between tables

I\'ve have two tables in my project which are User and InvoiceLine. It has been specified that an InvoiceLine can have a User known as a Checker.[详细]

2023-03-31 17:51 分类：问答
OData / WCF Data Services / EDM - Mapping to disparate data

I\'m researching OData as a RESTful interface fo开发者_如何学Pythonr a database. The data is structured in a very unusual way and normal tables and rows do not apply, in fact, some stuff just exists i[详细]

2023-03-31 12:06 分类：问答
linq to entities vs linq to objects - are they the same?

I usually use the term entity to represent a business data object and in my mind, the linq to entiti开发者_如何学Ces and linq to objects were the same. Is that not correct?That is definitely not the c[详细]

2023-03-31 05:53 分类：问答
Select only first matches using a join on two tables (one-to-many relationship) in LINQ-to-Entities

I am using LINQ-to-Entities and need to populate a ListView using a select statement with a join. dim db as New EntityModel[详细]

2023-03-31 05:20 分类：问答
trying to update the category table with entities

I have a data gridview and i have two text boxes when i click on thedata gridview row the corresponding row values are filled in text boxes ......[详细]

2023-03-31 04:36 分类：问答