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What exactly does stringstream do?
...write about every possible aspect and use-case.
Note: I probably stole it from someone on SO and refined, but I don't have original author noted.
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How do I change read/write mode for a file using Emacs?
... is set to read only mode, how do I change it to write mode and vice versa from within Emacs?
9 Answers
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When to use valueChangeListener or f:ajax listener?
...be invoked when the form is submitted and the submitted value is different from the initial value. It's thus not invoked when only the HTML DOM change event is fired. If you would like to submit the form during the HTML DOM change event, then you'd need to add another <f:ajax/> without a liste...
Unicode character in PHP string
...ectly.
As also mentioned by others, the only way to obtain a string value from any sensible Unicode character description in PHP, is by converting it from something else (e.g. JSON parsing, HTML parsing or some other form). But this comes at a run-time performance cost.
However, there is one other...
Cast Int to enum in Java
...ic enum MyEnum {
EnumValue1,
EnumValue2;
public static MyEnum fromInteger(int x) {
switch(x) {
case 0:
return EnumValue1;
case 1:
return EnumValue2;
}
return null;
}
}
...
What is a ViewModelLocator and what are its pros/cons compared to DataTemplates?
...sual practice is to have the Views find their ViewModels by resolving them from a dependency injection (DI) container. This happens automatically when the container is asked to provide (resolve) an instance of the View class. The container injects the ViewModel into the View by calling a constructor...
What is the difference between LR, SLR, and LALR parsers?
... shift occurs: the semantic action for G is called, the stack is popped n (from Rn) times, the pair (S,G) is pushed onto the stack, the new state S' is set to GOTO(G), and the cycle repeats with the same token T. If the parser is an SLR parser, there is at most one reduction rule for the state and s...
Python Sets vs Lists
...st(iterable):
... for i in iterable:
... pass
...
>>> from timeit import timeit
>>> timeit(
... "iter_test(iterable)",
... setup="from __main__ import iter_test; iterable = set(range(10000))",
... number=100000)
12.666952133178711
>>> timeit(
... ...
How do I install an old version of Django on virtualenv?
...ere : docs.djangoproject.com/en/2.0/releases oddly I didn't find this page from the django doc. replace '2.0' by '2.1' in some months..
– jerome
Mar 3 '18 at 12:27
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How to create a WPF UserControl with NAMED content
...now why it didn't work for you. you probably just changed an existing code from UserControl to inherit ContentControl. To solve, simply add new Class (not XAML with CS). And then it will (hopefully) work. if you like, I've created a small VS2010 solution
– itsho
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