大约有 41,000 项符合查询结果（耗时：0.0404秒） [XML]
MySQL IF NOT NULL, then display 1, else display 0
...ULL) AS addressexists
This works because TRUE is displayed as 1 in MySQL and FALSE as 0.
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Concat all strings inside a List using LINQ
... (i.Boo + delimiter + j.Boo)}).Boo);
Console.ReadKey();
}
}
And here is my best :)
items.Select(i => i.Boo).Aggregate((i, j) => i + delimiter + j)
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Int or Number DataType for DataAnnotation validation attribute
...ecimal), "0", "9999.99", ErrorMessage = "Value for {0} must be between {1} and {2}")] throw an exception. However, if I do [Range(typeof(decimal), "0.1", "9999.99", ErrorMessage = "Value for {0} must be between {1} and {2}")] , the error message will work correctly. 0 vs 0.1 , makes no sense. bug ma...
Replace a string in shell script using a variable
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paxdiablo: set is also not necessary (and how were you going to use it anyway?). Just replace=987654321.
– Roman Cheplyaka
Jul 22 '10 at 20:26
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Saving timestamp in mysql table using php
...t on an INT field. Anyway, a timestamp is only a representation of a date, and vice versa. You can convert from timestamp to date with the function jimy told you, and the other way with strtotime. edit: btw, timestamp only covers a range of all possible dates (1970-01-01 to xx-xx-2032 I think)
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Calling a Fragment method from a parent Activity
I see in the Android Fragments Dev Guide that an "activity can call methods in a fragment by acquiring a reference to the Fragment from FragmentManager, using findFragmentById() or findFragmentByTag() ."
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Best way to find if an item is in a JavaScript array? [duplicate]
...ample, see Erik Arvidsson's array extras (also, the associated blog post). And then you can use indexOf without worrying about browser support. Here's a slightly optimised version of his indexOf implementation:
if (!Array.prototype.indexOf) {
Array.prototype.indexOf = function (obj, fromIndex) ...
How do you get the file size in C#?
I need a way to get the size of a file using C#, and not the size on disk. How is this possible?
7 Answers
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“render :nothing => true” returns empty plaintext file?
I'm on Rails 2.3.3, and I need to make a link that sends a post request.
2 Answers
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How do you exit from a void function in C++?
...turn statement!
return;
or
if (condition) return;
You don't need to (and can't) specify any values, if your method returns void.
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