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Is is possible to check if an object is already attached to a data context in Entity Framework?
...y = new EntityKey("MyEntities.User", "Id", 1);
You can get the EntityKey from an existing instance of User by using the property User.EntityKey (from interface IEntityWithKey).
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typedef fixed length array
...
From R..'s answer:
However, this is probably a very bad idea, because the resulting type
is an array type, but users of it won't see that it's an array type.
If used as a function argument, it will be passed by refere...
How do I print the elements of a C++ vector in GDB?
...ions I have used in the past, none of them is perfect.
1) Use GDB scripts from http://clith.com/gdb_stl_utils/ These scripts allow you to print the contents of almost all STL containers. The problem is that this does not work for nested containers like a stack of sets.
2) Visual Studio 2005 has fa...
Build vs new in Rails 3
...ew method, but with the automatic assignment of the foreign key. Straight from the docs:
5 Answers
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Detecting an undefined object property
...this method is the only way of referring to an undeclared (note: different from having a value of undefined) identifier without an early error:
if(typeof myVariable === 'undefined') {
alert('myVariable is either the special value `undefined`, or it has not been declared');
}
In versions of Java...
What does principal end of an association means in 1:1 relationship in Entity framework
...alidation exceptions when you try and update a Boo that you just retrieved from the database, unless you first trigger the lazy-load of the Foo property. entityframework.codeplex.com/SourceControl/network/forks/…
– NathanAldenSr
Mar 7 '15 at 3:56
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How to deal with IntelliJ IDEA project files under Git source control constantly changing?
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From official DOC: http://devnet.jetbrains.com/docs/DOC-1186
Depending on the IntelliJ IDEA project format (.ipr file based or
.idea directory based), you should put the following IntelliJ IDEA
project files under the...
Simple logical operators in Bash
...nd substitution: there is a command inside the parentheses, and the output from the command is used as part of the command line (after extra expansions unless the substitution is between double quotes, but that's another story).
{ … } braces are like parentheses in that they group commands, but t...
Use find command but exclude files in two directories
...-path "./tmp/*" ! -path "./scripts/*"
Explanation:
find . - Start find from current working directory (recursively by default)
-type f - Specify to find that you only want files in the results
-name "*_peaks.bed" - Look for files with the name ending in _peaks.bed
! -path "./tmp/*" - Exclude all...
iOS 8 removed “minimal-ui” viewport property, are there other “soft fullscreen” solutions?
...gn the view with the top of the element. This in effect should prevent you from scrolling. The implementation is flawed though.
– Gajus
Nov 4 '14 at 19:29
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