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The object cannot be deleted because it was not found in the ObjectStateManager
...bject cannot be referenced by multiple instances of IEntityChangeTracker." Does it mean that there are already other object instances alive preventing the delete?
– Matt
Sep 6 '13 at 8:56
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Include constant in string without concatenating
...;
$constant = 'constant';
echo "I like {$constant('ANIMAL')}";
How does this work?
You can use any string function name and arbitrary parameters
One can place any function name in a variable and call it with parameters inside a double-quoted string. Works with multiple parameters too.
$fn...
How do you diff a directory for only files of a specific type?
...rt of a pattern. You should enclose
PATTERN in quotes so that the shell does not expand it. For example,
the option -x '*.[ao]' ignores any file whose name ends with '.a' or
'.o'.
This option accumulates if you specify it more than once. For
example, using the options -x 'RCS' -x '*,...
Intelligent way of removing items from a List while enumerating in C#
...t an ideal solution as I have to check for NULL all over the place, but it DOES work.
– John Stock
Aug 27 '11 at 14:34
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Get visible items in RecyclerView
... work with View.getGlobalVisibleRect(...) , but that hack is too ugly and does not always work too.
9 Answers
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Difference between Math.Floor() and Math.Truncate()
...ption of Round, there's two ways to round (AwayFromZero and ToEven) and it doesn't round to the nearest integer since it can do fractional rounding as well.
– paxdiablo
Feb 24 '09 at 2:44
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How do you search for files containing DOS line endings (CRLF) with grep on Linux?
... binary files
-U prevents grep from stripping CR characters. By default it does this it if it decides it's a text file.
-r read all files under each directory recursively.
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Sort objects in ArrayList by date?
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And does this return myList when it's done or something like that?
– user393964
May 8 '11 at 11:42
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Empty set literal?
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a=set() does not empty the set, but creates a new set and assigns it to a, overwriting any previous value.
– gerrit
Feb 5 '14 at 11:55
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How to delete all data from solr and hbase
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does it only delete the index? or will it delete the real data also?
– vishnu viswanath
Jan 7 '15 at 7:40
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