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entity object cannot be referenced by multiple instances of IEntityChangeTracker. while adding relat
... @Maritim it depends on the usage. In Web Applications, its typically one roundtrip. In Desktop Applications, you might also use one per Form (what ever, it just represents one unit of work) per Thread (because DbContext is not guaranteed to be threadsafe).
– LuckyLikey
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ResourceDictionary in a separate assembly
... applications' assemblies, but it's better if I compile these resources in one single assembly and have my applications reference it, right?
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How do you reset the stored credentials in 'git credential-osxkeychain'?
...lowed the GitHub instructions for setting up my account, and I'm able to clone, but I'm unable to push remotely.
7 Answers
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How do I declare a namespace in JavaScript?
...The important point is to be religious about expanding no further than the one root variable. Everything must flow from this.
– annakata
May 19 '09 at 8:54
22
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Why use sprintf function in PHP?
...f has all the formatting capabilities ... actually is missing an important one, %,8d for instance to get the rightly aligned 8 digit and commas separated integer. Using number_format is less convenient in a printf style.
– e2-e4
Nov 16 '10 at 6:41
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What is a “Bitmap heap scan” in a query plan?
...our comment... Yep, that's exactly it.
An index scan will go through rows one by one, opening disk pages again and again, as many times as necessary (some will of course stay in memory, but you get the point).
A bitmap index scan will sequentially open a short-list of disk pages, and grab every ap...
How to define a two-dimensional array?
...array type with two dimensions. There are many ways to create a new array; one of the most useful is the zeros function, which takes a shape parameter and returns an array of the given shape, with the values initialized to zero:
>>> import numpy
>>> numpy.zeros((5, 5))
array([[ 0....
What is global::?
...hing I have ever used myself so I don't know what the purpose is. Can someone explain this?
4 Answers
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Example of Named Pipes
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If you have the problem that the pipe closes after one read, check this answer: stackoverflow.com/a/895656/941764
– jgillich
Nov 11 '13 at 10:41
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Change Placeholder Text using jQuery
...creates a new Placeholder instance while events are still bound to the old one.
Looking at the code, it looks like you could do:
$("#serMemtb").attr("placeholder", "Type a name (Lastname, Firstname)").blur();
EDIT
placeholder is an HTML5 attribute, guess who's not supporting it?
Your plugin...