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SqlException from Entity Framework - New transaction is not allowed because there are other threads
I am currently getting this error:
20 Answers
20
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Convert int to ASCII and back in Python
I'm working on making a URL shortener for my site, and my current plan (I'm open to suggestions) is to use a node ID to generate the shortened URL. So, in theory, node 26 might be short.com/z , node 1 might be short.com/a , node 52 might be short.com/Z , and node 104 might be short.com/ZZ . When...
What should my Objective-C singleton look like? [closed]
My singleton accessor method is usually some variant of:
26 Answers
26
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Clean code to printf size_t in C++ (or: Nearest equivalent of C99's %z in C++)
I have some C++ code that prints a size_t :
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Nested JSON objects - do I have to use arrays for everything?
Is there any way to have nested objects in JSON so I don't have to make arrays out of everything? For my object to be parsed without error I seem to need a structure like this:
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Reshaping data.frame from wide to long format
...e to get used to, just as melt/cast. Here is a solution with reshape, assuming your data frame is called d:
reshape(d,
direction = "long",
varying = list(names(d)[3:7]),
v.names = "Value",
idvar = c("Code", "Country"),
timevar = "Year",
times = 1950:...
Swift how to sort array of custom objects by property value
lets say we have a custom class named imageFile and this class contains two properties.
18 Answers
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what is reverse() in Django
When I read django code sometimes, I see in some templates reverse() . I am not quite sure what this is but it is used together with HttpResponseRedirect. How and when is this reverse() supposed to be used?
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Hibernate: “Field 'id' doesn't have a default value”
I'm facing what I think is a simple problem with Hibernate, but can't solve it (Hibernate forums being unreachable certainly doesn't help).
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Is it possible to change the textcolor on an Android SearchView?
The SearchView element doesn't have any properties for changing the text color. The default text color is black and doesn't work on our dark background. Is there a way to change the color of the text without resorting to hacks?
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