CODEWITHSUNDEEP
c#.net
Suri
Suri

Reputation: 3357

How to convert concurrentbag to list?

I have few task which I can do in parallel. As list is not thread safe i am using concurrentbag. Once all the task are completed I want to convert the concurrentbag to list.

I have searched in MSDN but couldn't find any API which can convert concurrentbag to list in c#. How can I do it?

Note: i have to convert to list, It is necessary.

I have other option to apply lock on list but i wanted to use in build concurrentbag which is thread safe.

Upvotes: 12

Views: 22676

Answers (5)

Sai
Sai

Reputation: 1394

If your internal item are non list then use 

var someList = someConcurrentBag.ToList();

Or you can try as below If each item in the cbag is already a list.

E.g. In my case ConcurrentBag<List<int>>

ConcurrentBag<List<string>> jobErrorsColl = new ConcurrentBag<List<string>>();

// Got something in jobErrorsColl
List<string> multipleJobErrors = new List<string>();
List<string> singleJobErrors = new List<string>();

while (jobErrorsColl.IsEmpty)
{
    jobErrorsColl.TryPeek(out singleJobErrors);
    multipleJobErrors.AddRange(singleJobErrors);
}

return multipleJobErrors;

MSDN link is here for the same

Upvotes: 2

user8981673
user8981673

Reputation: 11

You can use the following to convert concurrentbag to list:

var list = = someConcurrentBag.SelectMany(r => r).ToList();

Upvotes: 0

Gilad Green
Gilad Green

Reputation: 37299

ConcurrentBag has the extension method of .ToList() - it implementsIEnumerable<T>

var someList = someConcurrentBag.ToList();

Upvotes: 7

Hari Prasad
Hari Prasad

Reputation: 16956

You could use ToList extension method.

var list = concurrentBag.ToList();

Upvotes: 20

marius
marius

Reputation: 349

ConcurrentBag has the ToList() method.

Upvotes: 4

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