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The relationship could not be changed because one or more of the foreign-key properties is non-nulla
...ems in the DB which are NOT in the
// new child item collection anymore?
if (!parent.ChildItems.Any(c => c.ID == originalChildItem.ID))
// Yes -> It's a deleted child item -> Delete
_dbContext.ChildItems.Remove(originalChildItem);
}
_dbContex...
Putting an if-elif-else statement on one line?
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If you need it to be more readable, you could put brackets around it, like this: a = 1 if i < 100 else (2 if i > 100 else 0) (Untested, but I think it should work)
– Zac
Sep 27 '16 at 16:48
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Xml configuration versus Annotation based configuration [closed]
...ing to persisted in one way, then inlined meta-data (i.e. annotations) are more compact and readable.
If, however, your object model was reused in different applications in such a way that each application wanted to persist the model in different ways, then externalising the meta-data (i.e. XML des...
Maintain/Save/Restore scroll position when returning to a ListView
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as @nbarraille said, the code should read more like "v.getTop() - mList.getPaddingTop()." Otherwise you'll spend an hour like I did trying to figure out why it always restores just a hair off...
– jdowdell
Jul 6 '14 at 23:40
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Postgresql - change the size of a varchar column to lower length
...can change around without this table lock/rewrite problem, and they can do more integrity checking than just the weak length check.
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Combine two or more columns in a dataframe into a new column with a new name
...::mutate(). Sorry, just trying to be helpful - I won't pollute the site anymore and abstain from future postings.
– sbha
Mar 27 '19 at 22:44
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Multiple Inheritance in C#
Since multiple inheritance is bad (it makes the source more complicated) C# does not provide such a pattern directly. But sometimes it would be helpful to have this ability.
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Can “using” with more than one resource cause a resource leak?
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In Matplotlib, what does the argument mean in fig.add_subplot(111)?
...starts from 1 and increments row-first. See documentation of subplot() for more info.
– Christian Alis
Feb 2 '11 at 16:54
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Epoch vs Iteration when training neural networks
...ning examples in one forward/backward pass. The higher the batch size, the more memory space you'll need.
number of iterations = number of passes, each pass using [batch size] number of examples. To be clear, one pass = one forward pass + one backward pass (we do not count the forward pass and back...