Questions tagged [linq]

12

votes

2

answers

Entity Framework - An item with the same key has already been added. - Error when trying to define foreign key relationship

asked 2010-08-29T09:35:23.103

52

votes

5

answers

LINQ - Does the Where expression return new instance or reference to object instance

c# .net linq

asked 2010-08-27T12:38:58.517

9

votes

3

answers

Group DateTime by an arbitrary time interval

c# linq group-by

asked 2010-08-24T17:39:30.077

13

votes

3

answers

when and in what scenario to use Expression Tree

c# linq

asked 2010-08-20T06:18:54.397

13

votes

10

answers

Get next N elements from enumerable

c# .net linq enumerator

asked 2010-08-19T17:22:17.040

137

votes

6

answers

Entity Framework 4 Single() vs First() vs FirstOrDefault()

.net linq entity-framework entity-framework-4 linq-to-entities

asked 2010-08-14T22:10:35.783

35

votes

4

answers

Using LINQ to convert a list to a CSV string

c# linq csv

asked 2010-08-12T14:08:45.300

50

votes

5

answers

Outer Variable Trap

c# linq

asked 2010-08-05T16:08:48.580

82

votes

3

answers

Using GroupBy, Count and Sum in LINQ Lambda Expressions

linq count lambda group-by sum

asked 2010-08-05T11:09:27.373

13

votes

5

answers

What is an easy way to append or prepend a single value to an IEnumerable<T>?

c# linq ienumerable

asked 2010-08-04T18:29:21.213

14

votes

5

answers

Rules of thumb for when to call ToList when returning LINQ results

c# linq

asked 2010-07-30T13:23:47.507

209

votes

11

answers

LINQ Contains Case Insensitive

c# linq

asked 2010-07-29T08:49:15.377

9

votes

6

answers

What exactly is the point of Expression Trees?

.net linq lambda expression-trees

asked 2010-07-28T20:33:42.417

238

votes

13

answers

Convert list to dictionary using linq and not worrying about duplicates

c# linq dictionary

asked 2010-07-23T14:20:07.357

9

votes

1

answers

What statements does Linq to entities support?

c# .net linq entity-framework linq-to-entities

asked 2010-07-20T09:59:11.787

22

votes

4

answers

LINQ - Get all items in a List within a List?

c# .net linq list

asked 2010-07-16T16:40:32.147

47

votes

2

answers

If Linq Result Is Empty

c# linq

asked 2010-07-15T20:43:38.433

46

votes

5

answers

Linq find all with certain type

c# linq

asked 2010-07-13T11:00:30.487

84

votes

8

answers

Pass a lambda expression in place of IComparer or IEqualityComparer or any single-method interface?

linq extension-methods ienumerable iequalitycomparer icomparer

asked 2010-07-06T20:13:29.713

11

votes

5

answers

Convert nested for-loops into single LINQ statement

c# linq syntax iteration structure

asked 2010-07-06T05:12:18.810

44

votes

4

answers

lambda expression for exists within list

c# linq lambda

asked 2010-07-05T03:33:26.187

17

votes

3

answers

How can you do custom sorting in LINQ with null always on the end?

c# linq

asked 2010-07-02T06:29:25.263

51

votes

1

answers

What is the purpose of LINQ's Expression.Quote method?

linq expression linq-expressions

asked 2010-06-29T05:43:15.930

24

votes

4

answers

C# LINQ select from list

c# linq

asked 2010-06-25T09:42:00.190

11

votes

2

answers

Is there a general method to check whether a property define supported by a Linq provider, especially OData?

.net linq odata

asked 2010-06-22T09:00:18.290

13

votes

4

answers

Linq: Converting flat structure to hierarchical

c# linq

asked 2010-06-18T13:51:02.820

41

votes

3

answers

Convert an IOrderedEnumerable<KeyValuePair<string, int>> into a Dictionary<string, int>

c# linq dictionary

asked 2010-06-17T22:46:53.123

12

votes

2

answers

Comparing 2 objects and retrieve a list of fields with different values

c# linq

asked 2010-06-17T09:26:54.593

11

votes

4

answers

Obtaining the min and max of a two-dimensional array using LINQ

c# linq arrays multidimensional-array

asked 2010-06-15T21:33:27.237

13

votes

3

answers

LINQ to SQL in and not in

c# linq .net-3.5

asked 2010-06-15T17:51:28.550

25

votes

4

answers

What is the difference between System.Linq and System.Data.Linq?

c# .net linq

asked 2010-06-11T01:16:32.957

14

votes

3

answers

C# Outer Apply in LINQ

c# .net linq outer-join

asked 2010-06-10T12:39:05.993

9

votes

2

answers

LINQ to SQL - Why can't you use a WHERE after an ORDER BY?

c# linq linq-to-sql

asked 2010-06-08T16:40:01.840

32

votes

3

answers

Except has similar effect to Distinct?

c# linq

asked 2010-06-04T16:20:32.220

47

votes

4

answers

LINQ transform Dictionary<key,value> to Dictionary<value,key>

c# linq

asked 2010-06-03T17:31:56.270

88

votes

6

answers

Convert string to int array using LINQ

c# linq

asked 2010-06-02T15:32:06.563

13

votes

4

answers

List to Columns in LINQ

c# linq

asked 2010-06-02T07:36:13.790

19

votes

3

answers

C# Linq - Cannot implicitly convert IEnumerable<string> to List<string>

c# linq

asked 2010-05-17T23:28:40.440

9

votes

6

answers

In LINQPad can you access SYSOBJECTS using LINQ?

.net linq linqpad

asked 2010-05-14T10:08:38.603

146

votes

5

answers

What guarantees are there on the run-time complexity (Big-O) of LINQ methods?

c# .net linq algorithm complexity-theory

asked 2010-05-09T22:29:05.690

14

votes

5

answers

Query a List of List of Items in LINQ c#

c# linq

asked 2010-05-08T17:18:46.340

14

votes

2

answers

LINQ to SQL Web Application Best Practices

asp.net linq linq-to-sql n-tier-architecture

asked 2010-05-07T00:53:18.707

15

votes

1

answers

How do I use a relative path in XDocument.Load?

c# asp.net linq

asked 2010-05-06T21:05:51.200

38

votes

16

answers

Most efficient algorithm for merging sorted IEnumerable<T>

c# linq performance algorithm optimization

asked 2010-05-04T16:15:33.393

13

votes

4

answers

Select most recent records using LINQ to Entities

c# linq linq-to-entities

asked 2010-05-03T20:46:08.840

31

votes

2

answers

How to search between two dates in LINQ to Entity?

.net linq linq-to-entities

asked 2010-04-29T17:38:06.653

10

votes

1

answers

Converting F# Quotations into LINQ Expressions

c# linq f# quotations

asked 2010-04-21T11:34:57.570

19

votes

9

answers

Performance concern when using LINQ "everywhere"?

c# .net linq performance resharper

asked 2010-04-20T11:24:21.617

14

votes

2

answers

LINQ to SQL does not update when data has changed in database

c# .net linq linq-to-sql

asked 2010-04-19T02:28:55.887

29

votes

1

answers

Using DataGridViewRowCollection object in LINQ

c# linq datagridview

asked 2010-04-15T20:14:52.007

Questions tagged linq