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Entity Framework: There is already an open DataReader associated with this Command
I am using Entity Framework and occasionally i will get this error.
17 Answers
17
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Save bitmap to location
... FileOutputStream(filename)) {
bmp.compress(Bitmap.CompressFormat.PNG, 100, out); // bmp is your Bitmap instance
// PNG is a lossless format, the compression factor (100) is ignored
} catch (IOException e) {
e.printStackTrace();
}
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Combine --user with --prefix error with setup.py install
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answered Dec 21 '10 at 0:07
gotgenesgotgenes
32.1k2626 gold badges8888 silver badges119119 bronze badges
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In a javascript array, how do I get the last 5 elements, excluding the first element?
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edited Feb 10 at 14:40
answered Jun 24 '11 at 21:18
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Configuring so that pip install can work from github
...owLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\...
E11000 duplicate key error index in mongodb mongoose
... null value.
In other words, a sparse index is ok with multiple documents all having null values.
sparse indexes
From comments:
Your error says that the key is named mydb.users.$email_1 which makes me suspect that you have an index on both users.email and users.local.email (The former being old an...
Application_Error not firing when customerrors = “On”
...the HandleErrorAttribute tells MVC to look for an Error view and it never calls the Application_Error() method. I couldn't find documentation of this but it is explained in this answer on programmers.stackexchange.com.
To get the ApplicationError() method called for every unhandled exception, simpl...
How do I write JSON data to a file?
... codecs.getwriter('utf-8')(f), ensure_ascii=False)
The codecs.getwriter call is redundant in Python 3 but required for Python 2
Readability and size:
The use of ensure_ascii=False gives better readability and smaller size:
>>> json.dumps({'price': '€10'})
'{"price": "\\u20ac10"}'
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Why are regular expressions so controversial? [closed]
...ions. And not just slow, but the performance of the regex engine can be totally unpredictable when faced with arbitrary (user-supplied) inputs.
– Pacerier
Dec 1 '15 at 21:53
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In CMake, how can I test if the compiler is Clang?
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As of CMake 2.8.10, this variable is (finally!) documented. See: cmake.org/cmake/help/v2.8.10/…
– Nick Hutchinson
Nov 19 '12 at 1:07
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