Click here to Skip to main content
15,312,400 members
Home / Discussions / C#
   

C#

 
GeneralRe: Exceptions Pin
Eddy Vluggen19-Jan-22 0:40
professionalEddy Vluggen19-Jan-22 0:40 
GeneralRe: Exceptions Pin
lmoelleb19-Jan-22 0:48
Memberlmoelleb19-Jan-22 0:48 
GeneralRe: Exceptions Pin
Eddy Vluggen19-Jan-22 1:12
professionalEddy Vluggen19-Jan-22 1:12 
AnswerRe: Exceptions Pin
Eddy Vluggen18-Jan-22 18:02
professionalEddy Vluggen18-Jan-22 18:02 
AnswerRe: Exceptions Pin
jschell23-Jan-22 7:32
Memberjschell23-Jan-22 7:32 
Questionnecessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
BillWoodruff16-Jan-22 2:39
mveBillWoodruff16-Jan-22 2:39 
GeneralRe: necessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
harold aptroot16-Jan-22 3:21
Memberharold aptroot16-Jan-22 3:21 
GeneralRe: necessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
BillWoodruff16-Jan-22 5:14
mveBillWoodruff16-Jan-22 5:14 
thanks, Harold, as I'd expect from you, a very thoughtful reply.

I've found very little documentation on 'TryGetNonEnumeratedCount so far. My impression in the SO thread cited is that this new Linq method is somehow more efficient.

Given .Any short-circuits when it encounters a first instance: I find myself wondering if under-the-hood .Any is in any way more "efficient" in a function that returns an IEnumerable ... compared to invoking Count().

In this context: in a loop where a series of functions are called in sequence, and the goal is to exit the loop when any function returns an empty IEnumerable ... .Any can be used while testing for null or == default are useless.

cheers, Bill
«The mind is not a vessel to be filled but a fire to be kindled» Plutarch

GeneralRe: necessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
harold aptroot16-Jan-22 6:56
Memberharold aptroot16-Jan-22 6:56 
GeneralRe: necessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
BillWoodruff16-Jan-22 18:22
mveBillWoodruff16-Jan-22 18:22 
GeneralRe: necessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
Richard Deeming16-Jan-22 22:45
mveRichard Deeming16-Jan-22 22:45 
GeneralRe: necessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
BillWoodruff18-Jan-22 1:19
mveBillWoodruff18-Jan-22 1:19 
GeneralRe: necessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
Richard Deeming18-Jan-22 1:41
mveRichard Deeming18-Jan-22 1:41 
GeneralRe: necessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
BillWoodruff18-Jan-22 3:08
mveBillWoodruff18-Jan-22 3:08 
GeneralRe: necessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
Richard Deeming18-Jan-22 6:17
mveRichard Deeming18-Jan-22 6:17 
GeneralRe: necessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
BillWoodruff19-Jan-22 13:58
mveBillWoodruff19-Jan-22 13:58 
GeneralRe: necessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
Richard Deeming19-Jan-22 21:43
mveRichard Deeming19-Jan-22 21:43 
GeneralRe: necessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
BillWoodruff20-Jan-22 4:26
mveBillWoodruff20-Jan-22 4:26 
GeneralRe: necessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
harold aptroot16-Jan-22 22:48
Memberharold aptroot16-Jan-22 22:48 
GeneralRe: necessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
BillWoodruff18-Jan-22 0:49
mveBillWoodruff18-Jan-22 0:49 
GeneralRe: necessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
jschell23-Jan-22 7:40
Memberjschell23-Jan-22 7:40 
GeneralRe: necessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
BillWoodruff25-Jan-22 3:58
mveBillWoodruff25-Jan-22 3:58 
GeneralRe: necessity to use .Any() to check if an IEnumerable<T> result has no items without iterating over it ? Pin
jschell30-Jan-22 6:22
Memberjschell30-Jan-22 6:22 
QuestionRemove a page from pdf document in C# Pin
Member 1447460712-Jan-22 20:09
MemberMember 1447460712-Jan-22 20:09 
AnswerRe: Remove a page from pdf document in C# Pin
OriginalGriff12-Jan-22 20:22
mveOriginalGriff12-Jan-22 20:22 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Praise Praise    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.