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It's invisible NSA code
If your actions inspire others to dream more, learn more, do more and become more, you are a leader.-John Q. Adams
You must accept one of two basic premises: Either we are alone in the universe, or we are not alone in the universe. And either way, the implications are staggering.-Wernher von Braun
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.-Albert Einstein
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It's official - I have too many eBooks to cope with without help, so I decided to knock up a quick SQL DB app to organise them (and play with creating a new DataGridView based UserControl with automatic fuzzy filtering).
So I've just spent the last hour or so wondering where my data is / was / should be:
string[] files = Directory.GetFiles(path, "*.*", SearchOption.AllDirectories);
IEnumerable<Book> books = files.Select(f => new Book(f, path));
Author.SaveAllNew();
Series.SaveAllNew();
Book.SaveAllNew(); The Book constructor determines the Series and Author and creates them as needed.
So where is everybody? My DB is still empty...
...later.
...much later.
...until I remembered Linq methods use deferred execution, that is... 
string[] files = Directory.GetFiles(path, "*.*", SearchOption.AllDirectories);
IEnumerable<Book> books = files.Select(f => new Book(f, path)).ToList();
Author.SaveAllNew();
Series.SaveAllNew();
Book.SaveAllNew();
Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)
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:confusedFaceAtMisleadingTitle:
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Assuming you're using .NET 4.0 or higher, Directory.EnumerateFiles[^] is more efficient than Directory.GetFiles[^], as it doesn't have to allocate an array to contain every file path.
Also, unless you specifically want to filter out files without extensions, use "*" instead of "*.*" as your search pattern.
And since you don't seem to be using the result of the ToList call, it would probably be better to avoid creating a list. Unfortunately, there's no built-in Consume method, but it's not hard to write one:
public static class NomNomNom
{
public static void Consume<T>(this IEnumerable<T> source)
{
if (source == null) throw new ArgumentNullException("source");
foreach (T item in source);
}
}
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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I use the list later on for UI updates - I just didn't show that part!
Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)
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One does not simply lecture OG on programming . 
Microsoft ... the only place where VARIANT_TRUE != true
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Oh, come on! He describes himself as the CEO of Wales. When was the last time you met a CEO who knew the first thing about writing code? 
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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Richard Deeming wrote: When was the last time you met a CEO who knew the first thing about writing code?
I couldn't know after all I work as a code monkey. I don't meet such people like CEOs.
But your post was funny  
Microsoft ... the only place where VARIANT_TRUE != true
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Argonia wrote: I don't meet such people like CEOs
Undo another button or two.
You'll never get very far if all you do is follow instructions.
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He can if he wants - I make mistakes like everyone else, and am both very aware and very thankful that I don't know everything.
Mind you, I did know everything when I was 18...
Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)
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OriginalGriff wrote: when I was 18...
That was surely before the dawn of men (and thus before the age of the personal computer) 
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Pre-PC indeed, but not Pre-DoM: I'm not 'Enry Minute!
Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)
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This continues to irk me no end.
Due to the lack of generics in .net V1, IDataParameterCollection.Item is of type object rather than IDataParameter, so I have to keep casting.
You'll never get very far if all you do is follow instructions.
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Many still create their own collections the same way. I have no clue why.
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I know... I had to add a "Don't use the obsolete collection pattern" chapter to the coding style guide for my team... 
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PIEBALDconsult wrote: This continues to irk me no end.
Due to the lack of generics in .net V1
It did for me too. That is until 2005 when .Net 2.0 came out. Just saying. 
There are only 10 types of people in the world, those who understand binary and those who don't.
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Yes, but they didn't add a generic alternative to the collection so I still have to cast even today.
You'll never get very far if all you do is follow instructions.
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if (((cmd != null)))
Not so much "belt and braces" and "braces and braces and braces" code.
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Macro replacement?
You'll never get very far if all you do is follow instructions.
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Probably - there's a flock of seagulls in the same file.
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I wondered what had happened to them.
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I think they got arrested by the bad hair squad..
Bad Hair Day[^]
"If you don't fail at least 90 percent of the time, you're not aiming high enough."
Alan Kay.
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That containment field seems a little weak. Tack on a few more pairs to be sure it safely contains that massive expression.
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