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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
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Difference between volatile and synchronized in Java
...nchronized with respect to memory visibility and instruction ordering (see http://www.cs.umd.edu/users/pugh/java/memoryModel/jsr-133-faq.html#volatile). For the purposes of visibility, each access to a volatile field acts like half a synchronization.
Under the new memory model, it is still true...
Java Class.cast() vs. cast operator
Having being taught during my C++ days about evils of the C-style cast operator I was pleased at first to find that in Java 5 java.lang.Class had acquired a cast method.
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design a stack such that getMinimum( ) should be O(1)
This is one of an interview question. You need to design a stack which holds an integer value such that getMinimum() function should return the minimum element in the stack.
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Difference between `data` and `newtype` in Haskell
...eUploader: {
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Efficient list of unique strings C#
... part of the the system namespace but have used the Iesi.Collections from http://www.codeproject.com/KB/recipes/sets.aspx with NHibernate. It has support for hashed set along with sorted set, dictionary set, and so on. Since it has been used with NHibernate it has been used extensively and very sta...
How to make a query with group_concat in sql server [duplicate]
I know that in sql server we cannot use Group_concat function but here is one issue i have in which i need to Group_Concat my query.I google it found some logic but not able to correct it.My sql query is
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Getting all types that implement an interface
Using reflection, how can I get all types that implement an interface with C# 3.0/.NET 3.5 with the least code, and minimizing iterations?
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What is duck typing?
...here are good examples of duck typing for Java, Python, JavaScript
etc at https://en.wikipedia.org/wiki/Duck_typing
Here is also a good answer which describes the advantages of dynamic
typing and also its disadvantages: What is the supposed productivity gain of dynamic typing?
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Xcode duplicate line
There is a Duplicate command in the Edit Menu (with a default shortcut of ⌘ D ), but it is (as Halley pointed out) meant for duplication in the Interface Builder part of Xcode.
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