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Difference between SelectedItem, SelectedValue and SelectedValuePath

...{ public int CategoryID { get; set; } } It's a little confusing initially, but hopefully this makes it a bit clearer... :) Chris share | improve this answer | follow ...
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Removing duplicates from a list of lists

... much easier that it offers good returns on efforts. But sometimes (essentially for "tragically crucial bottlenecks" in deep inner loops of code that's pushing the boundaries of performance limits) one may need to go into much more detail, providing probability distributions, deciding which performa...
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What is the proper way to re-attach detached objects in Hibernate?

...e to the DB, and overwrite any intervening updates. refresh() cannot be called on a detached entity. lock() cannot be called on a detached entity, and even if it could, and it did reattach the entity, calling 'lock' with argument 'LockMode.NONE' implying that you are locking, but not locking, i...
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How do I analyze a program's core dump file with GDB when it has command-line parameters?

...xt_ptr = "string in text segment"; (void)argv; mmap_ptr = (char *)malloc(sizeof(data_ptr) + 1); strcpy(mmap_ptr, data_ptr); mmap_ptr[10] = 'm'; mmap_ptr[11] = 'm'; mmap_ptr[12] = 'a'; mmap_ptr[13] = 'p'; printf("text addr: %p\n", text_ptr); printf("data addr: %p\n...
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What is a mixin, and why are they useful?

... Probably not an issue in this example, but you generally want to put the main base class as the last element within the parenthesis so to create the inheritance chain: Request==>Mixin==>...==>BaseRequest. See here: ianlewis.org/en/mixins-and-python ...
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Why doesn't Python have a sign function?

... it wasn't accepted, because they didn't agree on what it should return in all the edge cases (+/-0, +/-nan, etc) So they decided to implement only copysign, which (although more verbose) can be used to delegate to the end user the desired behavior for edge cases - which sometimes might require the...
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How connect Postgres to localhost server using pgAdmin on Ubuntu?

I installed Postgres with this command 6 Answers 6 ...
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What is the difference between self::$bar and static::$bar in PHP?

...keyword. In this case, your Foo class defines a protected static property called $bar. When you use self in the Foo class to refer to the property, you're referencing the same class. Therefore if you tried to use self::$bar elsewhere in your Foo class but you had a Bar class with a different value ...
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How to load/edit/run/save text files (.py) into an IPython notebook cell?

...yfile.py into the current cell For more magic and help %lsmagic list all the other cool cell magic commands. %COMMAND-NAME? for help on how to use a certain command. i.e. %run? Note Beside the cell magic commands, IPython notebook (now Jupyter notebook) is so cool that it allows you to ...
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Best practices for adding .gitignore file for Python projects? [closed]

...uildout I have following in .gitignore (along with *.pyo and *.pyc): .installed.cfg bin develop-eggs dist downloads eggs parts src/*.egg-info lib lib64 Thanks to Jacob Kaplan-Moss Also I tend to put .svn in since we use several SCM-s where I work. ...