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Getting exact error type in from DbValidationException
...onException)ex).EntityValidationErrors
This will allow you to drill down into the ValidationErrors tree. It's the easiest way I've found to get instant insight into these errors.
For Visual 2012+ users who care only about the first error and might not have a catch block, you can even do:
((Syste...
Table Naming Dilemma: Singular vs. Plural Names [closed]
...in code.
My new rule of thumb is to judge how it will look once it's been converted into an object.
one table I've found that does not fit the new naming I use is UsersInRoles. But there will always be those few exceptions and even in this case it looks fine as UsersInRoles.Username.
...
How to force use of overflow menu on devices with menu button
I'd like to have all of the menu items that don't fit into the ActionBar go into the overflow menu (the one that is reached from the Action Bar not the menu button) even on devices that do have a Menu button . This seems much more intuitive for users than throwing them into a separate menu list th...
How do I add a Maven dependency in Eclipse?
...oject. Before step 5, you must right-click project--> configure --> convert to Maven project. Then step 5 will work.
– cliff2310
Jun 16 '18 at 1:42
...
Lambda Expression and generic method
...incompatible types: java.util.Comparator<java.lang.String> cannot be converted to MyComparable and MyComparable is not generic (no type) so (MyComparable<String>) would not work either
– user85421
Sep 20 '18 at 13:00
...
.NET JIT potential error?
...nt to 4, that's too many calls to unroll.
One workaround is this:
for (int x = 0; x < 2; x++) {
for (int y = 0; y < 2; y++) {
oDoesSomething.Do(new IntVec(x, y));
}
}
UPDATE: re-checked in August 2012, this bug was fixed in the version 4.0.30319 jitter. But is still pres...
Polymorphism with gson
...e adapters for the derived classes: just one adapter for the base class or interface, provided of course that you are happy with the default serialization of the derived classes. Anyway, here's the code (package and imports removed) (also available in github):
The base class (interface in my case):...
Why does std::getline() skip input after a formatted extraction?
...ward the next line. The newline is left in the buffer after the extraction into name until the next I/O operation where it is either discarded or consumed. When the flow of control reaches std::getline(), the newline will be discarded, but the input will cease immediately. The reason this happens is...
PyPy — How can it possibly beat CPython?
...e of them for example took the source, did some kind of analysis on it and converted it directly into tight target specific assembly code after running for a while, I imagine it would be quite faster than CPython.
Update: Recently, on a carefully crafted example, PyPy outperformed a similar C prog...
How to check command line parameter in “.bat” file?
...n, short answer: they are "magical" - sometimes double (double) quotes get converted to a single (double) quote. And they need to match, for a start.
Consider this little script:
@rem argq.bat
@echo off
:loop
if "%1"=="" goto :done
echo %1
shift
goto :loop
:done
echo Done.
Let's test it:
C:\...