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Distinct not working with LINQ to Objects
This is based on an example in "LINQ in Action". Listing 4.16.
9 Answers
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Fixed position but relative to container
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Short answer: no. (It is now possible with CSS transform. See the edit below)
Long answer: The problem with using "fixed" positioning is that it takes the element out of flow. thus it can't be re-positioned relative to its parent because it's as ...
Is there a minlength validation attribute in HTML5?
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You can use the pattern attribute. The required attribute is also needed, otherwise an input field with an empty value will be excluded from constraint validation.
<input pattern=".{3,}" required title="3 characters minimum">
<input pattern=".{5,10}" required title="5 to...
MySQL pagination without double-querying?
...cache the count for a few seconds and that will help a lot.
The other way is to use SQL_CALC_FOUND_ROWS clause and then call SELECT FOUND_ROWS(). apart from the fact you have to put the FOUND_ROWS() call afterwards, there is a problem with this: There is a bug in MySQL that this tickles that affect...
Why do we need C Unions?
...o integer:
u.f = 3.14159f;
printf("As integer: %08x\n", u.i);
Although this is technically undefined behavior according to the C standard (you're only supposed to read the field which was most recently written), it will act in a well-defined manner in virtually any compiler.
Unions are also somet...
Should I compile with /MD or /MT?
In Visual Studio, there's the compile flags /MD and /MT which let you choose which kind of C runtime library you want.
7 An...
C# LINQ find duplicates in List
Using LINQ, from a List<int> , how can I retrieve a list that contains entries repeated more than once and their values?
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What is the easiest way to parse an INI file in Java?
...-in replacement for a legacy application in Java. One of the requirements is that the ini files that the older application used have to be read as-is into the new Java Application. The format of this ini files is the common windows style, with header sections and key=value pairs, using # as the ch...
How to remove unused C/C++ symbols with GCC and ld?
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For GCC, this is accomplished in two stages:
First compile the data but tell the compiler to separate the code into separate sections within the translation unit. This will be done for functions, classes, and external variables by usin...
How big can a MySQL database get before performance starts to degrade
...ter.
In my experience the biggest problem that you are going to run in to is not size, but the number of queries you can handle at a time. Most likely you are going to have to move to a master/slave configuration so that the read queries can run against the slaves and the write queries run against...