c# - Happend a few months ago... We encountered a performance issue somewhere in our Code, written by a guy who already left

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Happend a few months ago...

We encountered a performance issue somewhere in our Code, written by a guy who already left.
It was kind of this:

foreach(var id in idList)
{
CallServiceWithDataBaseAccess(new List<string>()
{
id
}
}

Well. It was obvious as in this example...

undefined

c#

performance

Happend a few months ago... We encountered a performance issue somewhere in our Code, written by a guy who already left. It was kind of this: foreach(var id in idList) { CallServiceWithDataBaseAccess(new List<string>() { id } } Well. It was obvious as in this example...

undefined

c#

performance

Happend a few months ago...

We encountered a performance issue somewhere in our Code, written by a guy who already left.
It was kind of this:

foreach(var id in idList)
{
CallServiceWithDataBaseAccess(new List<string>()
{
id
}
}

Well. It was obvious as in this example...