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Sequence contains no matching element

...g about the others anyway. On the other hand, it looks like you might actually be better off with a join here in the first place. If you didn't care that it would do all matches (rather than just the first) you could use: var query = from target in _lstAcl.Documents join source in _dsA...
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Unittest setUp/tearDown for several tests

...ably going to be to create your own derived TestSuite and override run(). All other calls would be handled by the parent, and run would call your setup and teardown code around a call up to the parent's run method. share ...
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How to make a countdown timer in Android?

...? I tried getting the value from an EditText but it didn't seem to work at all. – edwoollard Aug 3 '13 at 9:41 ...
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What is the difference between ndarray and array in numpy?

...r are used. If buffer is an object exposing the buffer interface, then all keywords are interpreted. The example below gives a random array because we didn't assign buffer value: np.ndarray(shape=(2,2), dtype=float, order='F', buffer=None) array([[ -1.13698227e+002, 4.25087011e-303], ...
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What are 'get' and 'set' in Swift?

... That's actually explained right before the code: In addition to simple properties that are stored, properties can have a getter and a setter. class EquilateralTriangle: NamedShape { ... When some other class wants to get that pe...
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Why does installing Nokogiri on Mac OS fail with libiconv is missing?

I've been trying to install Nokogiri on Mac OS 10.9.3 and whatever I try, the install fails in the end with the following error message: ...
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How to list variables declared in script in bash?

... I have to make something to save them to file. My question is how to list all variables declared in my script and get list like this: ...
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How to test equality of Swift enums with associated values

...d values. So if you're on Swift 4.1 or newer, the following will automatically synthesize the necessary methods such that XCTAssert(t1 == t2) works. The key is to add the Equatable protocol to your enum. enum SimpleToken: Equatable { case Name(String) case Number(Int) } let t1 = SimpleToke...
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Class JavaLaunchHelper is implemented in both … libinstrument.dylib. One of the two will be used. Wh

...ong editor (hence it not being marked as correct). – Allison Mar 19 '18 at 16:41 2 I agree with @...
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Using the HTML5 “required” attribute for a group of checkboxes?

... checked. Following is your html code (make sure that you add required for all the elements in the group.) <input type="checkbox" name="option[]" id="option-1" value="option1" required/> Option 1 <input type="checkbox" name="option[]" id="option-2" value="option2" required/> Option 2 &l...