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Default parameter for CancellationToken
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Here are several solutions, in descending order of general goodness:
1. Using default(CancellationToken) as default value:
Task DoAsync(CancellationToken ct = default(CancellationToken)) { … }
Semantically, CancellationToken.None would be the ideal candidate fo...
Remove Fragment Page from ViewPager in Android
...}
Now, for example if you delete a single tab or make some change to the order, you should call notifyChangeInPosition(1) before calling notifyDataSetChanged(), which will ensure that all the Fragments will be recreated.
Why this solution works
Overriding getItemPosition():
When notifyDataSetCh...
Oracle SQL: Update a table with data from another table
...le2 multiple times for some/all records (not clean). Secondly: there is no order by clause so this will occur in an unpredictable manner (i.e. last value in unordered data wins). Thirdly: It will be much slower. Assuming the outcome of the for loop was intended, the original subselect could have bee...
How to open existing project in Eclipse
... Also, in a left toolbar you should press a button "Restore" in order to view Navigator. Also an advise of @tim doyle may help: Window->Show View->Navigator.
– CoolMind
May 12 '16 at 15:34
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horizontal scrollbar on top and bottom of table
...scrollLeft = wrapper2.scrollLeft;
};
#wrapper1, #wrapper2{width: 300px; border: none 0px RED;
overflow-x: scroll; overflow-y:hidden;}
#wrapper1{height: 20px; }
#wrapper2{height: 100px; }
#div1 {width:1000px; height: 20px; }
#div2 {width:1000px; height: 100px; background-color: #88FF88;
overf...
str performance in python
...thod to convert an object (in my case an integer) to a string is almost an order of magnitude slower than using string formatting.
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self referential struct definition?
...ncomplete type" error. The reason is that "struct Cell" must be defined in order for the compiler to know how much space to allocate when it is used.
If you attempt to use "struct Cell" inside the definition of "struct Cell", then the compiler cannot yet know how much space "struct Cell" is suppose...
How to perform static code analysis in php? [closed]
...the same time, you can use -P <n> to run "n" processes at a time, in order to parallelize the execution: find . -name '*.inc' -o -name '*.php' -print0 | xargs -0 -n1 -P10 php -l
– Joe
Apr 5 '12 at 22:07
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How to make code wait while calling asynchronous calls like Ajax [duplicate]
... case but I know that "god practices" must be reconsidered in each case in order to obtain the best result. Exist normalization but some kind of de-normalization some time is healthy. We are free to take our own decisions. Sorry my poor english and merry christmas.
– HMarioD
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XPath: select text node
...t() . Some knowledge and understanding of XPath is typically required in order to construct XPath expressions.
– Dimitre Novatchev
Jun 3 '15 at 21:51
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