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“Cannot evaluate expression because the code of the current method is optimized” in Visual Studio 20
...this issue when I was using VS 2010. My solution configuration has (Debug) selected. I resolved this by unchecking the Optimize Code property under project properties.
Project (right Click)=> Properties => Build (tab) => uncheck Optimize code
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How to repeat last command in python interpreter shell?
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In IDLE, go to Options -> Configure IDLE -> Keys and there select history-next and then history-previous to change the keys.
Then click on Get New Keys for Selection and you are ready to choose whatever key combination you want.
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Find all elements on a page whose element ID contains a certain text using jQuery
... $(this).doStuff();
});
Note the asterisk '*' at the beginning of the selector matches all elements.
See the Attribute Contains Selectors, as well as the :visible and :hidden selectors.
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Postgres dump of only parts of tables for a dev snapshot
...r larger tables you can use the COPY command to pull out subsets...
COPY (SELECT * FROM mytable WHERE ...) TO '/tmp/myfile.tsv'
COPY mytable FROM 'myfile.tsv'
https://www.postgresql.org/docs/current/static/sql-copy.html
You should consider maintaining a set of development data rather than just ...
How do I interactively unstage a particular hunk in git?
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@Nawaz: That's correct - git add -p filename selectively stages changes from that file, and git reset -p filename selectively unstages changes. There's also git checkout -p -- filename, which lets you selectively discard changes from a file. Warning: each of add and res...
Hibernate error - QuerySyntaxException: users is not mapped [from users]
... bean class name is UserDetails
Query query = entityManager. createQuery("Select UserName from **UserDetails** ");
You do not give your table name on the Db. you give the class name of bean.
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Algorithm to return all combinations of k elements from n
... takes an array of letters as an argument and a number of those letters to select.
71 Answers
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What do I have to do to get Core Data to automatically migrate models?
...oordinator: %@",error);
}
Then you need to do a little trick in xCode:
Select your xcdatamodel file
Select the Design Menu at the top - then Data Model - then choose Add Model Version
Your xcdatamodel file will then get moved into a new directory with the same name as your xcdatamodel file but w...
How to use SQL Order By statement to sort results case insensitive?
...You can just convert everything to lowercase for the purposes of sorting:
SELECT * FROM NOTES ORDER BY LOWER(title);
If you want to make sure that the uppercase ones still end up ahead of the lowercase ones, just add that as a secondary sort:
SELECT * FROM NOTES ORDER BY LOWER(title), title;
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Solving “The ObjectContext instance has been disposed and can no longer be used for operations that
... to find out where the reference is or isn't set, right-click its name and select "Find All References". You can then place a breakpoint at every location that requests data, and run your program with the debugger attached. Every time the debugger breaks on such a breakpoint, you need to determine w...