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What does LINQ return when the results are empty

...nto another query. This caused the second query to throw no matter what I cast it to because there was no value being fed into the second query. – trevorc Nov 30 '11 at 21:11 ...
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Parsing a string into a boolean value in PHP

...ugh them. Nothing quite fit my needs so I wrote my own: function loosely_cast_to_boolean($value) { if(is_array($value) || $value instanceof Countable) { return (boolean) count($value); } else if(is_string($value) || is_object($value) && method_exists($value, '__toString')) ...
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Insert new item in array on any position in PHP

...ht not behave the same for an array, an object, or null. For scalars, type-casting (array)$scalar is equivalent to array($scalar), but for an array, an object, or null, it will be ignored (array), convert to an array (object), or become an empty array (null) - see php.net/manual/en/… ...
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Validation failed for one or more entities while saving changes to SQL Server Database using Entity

..., I've got Date and time respectively. Could this be the reason? How can I cast to the appropriate datatype in the code before saving changes to database. ...
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How to Programmatically Add Views to Views

... As a coding practice, on findViewById, cast to ViewGroup or always the most generic form of an object so that if it changes from a LinearLayout to a RelativeLayout, you have no refactoring. – Joel Teply Apr 3 '15 at 16:59 ...
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What is the good python3 equivalent for auto tuple unpacking in lambda?

...th to have a namedtuple, and use the assignment expression to effectively "cast" the incoming sequence to the namedtuple: >>> from collections import namedtuple >>> point = namedtuple("point", "x y") >>> b = lambda s: (p:=point(*s), p.x ** 2 + p.y ** 2)[-1] ...
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The Role Manager feature has not been enabled

... this doesnt work becuase you need to cast userid to int such that: userManager.GetRoles(Convert.ToInt32(User.Identity.GetUserId<int>())); – toy Jul 25 '17 at 22:47 ...
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Can I call a base class's virtual function if I'm overriding it?

...in this Question, this shouldn't work because of protected inheritance. To cast a base class pointer you have to use public inheritance. – Darkproduct Jun 3 at 9:06 ...
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How to pass values between Fragments

... mCallback = (OnImageClickListener) context; } catch (ClassCastException e) { throw new ClassCastException(context.toString()+ " must implement OnImageClickListener"); } } public View onCreateView(LayoutInflater inflater, ViewGroup container,...
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How to drop rows of Pandas DataFrame whose value in a certain column is NaN

...inputs could not be safely coerced to any supported types according to the casting rule ''safe'' – Philipp Schwarz Oct 7 '16 at 13:18 ...