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What does principal end of an association means in 1:1 relationship in Entity framework
I was trying to do this in Entity Framework when I got the error:
3 Answers
3
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Detecting that the browser has no mouse and is touch-only
I'm developing a webapp (not a website with pages of interesting text) with a very different interface for touch (your finger hides the screen when you click) and mouse (relies heavily on hover preview).
How can I detect that my user has no mouse to present him the right interface? I plan to leave a...
Which, if any, C++ compilers do tail-recursion optimization?
...ly well to do tail-recursion optimization in both C and C++, yet while debugging I never seem to see a frame stack that indicates this optimization. That is kind of good, because the stack tells me how deep the recursion is. However, the optimization would be kind of nice as well.
...
Retina displays, high-res background images
This might sound like a silly question.
3 Answers
3
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Relative imports in Python 3
...
unfortunately, this module needs to be inside the package, and it also
needs to be runnable as a script, sometimes. Any idea how I could
achieve that?
It's quite common to have a layout like this...
main.py
mypackage/
__init__.py
mymodule.py
...
Check if a String contains numbers Java
...
Yassin Hajaj
17k88 gold badges3939 silver badges7575 bronze badges
answered Sep 3 '13 at 11:19
Evgeniy DorofeevEvgeniy Dorofe...
Quick-and-dirty way to ensure only one instance of a shell script is running at a time
...echoes a PID into it. This serves as a protection if the process is killed before removing the pidfile:
LOCKFILE=/tmp/lock.txt
if [ -e ${LOCKFILE} ] && kill -0 `cat ${LOCKFILE}`; then
echo "already running"
exit
fi
# make sure the lockfile is removed when we exit and then claim it
...
How are ssl certificates verified?
...eeded to securely verify a ssl certificate? My (very limited) understanding is that when you visit an https site, the server sends a certificate to the client (the browser) and the browser gets the certificate's issuer information from that certificate, then uses that to contact the issuerer, and s...
Objective-C ARC: strong vs retain and weak vs assign
There are two new memory management attributes for properties introduced by ARC, strong and weak .
8 Answers
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How to convert a String to CharSequence?
...nce cs = "string";
String s = cs.toString();
foo(s); // prints "string"
public void foo(CharSequence cs) {
System.out.println(cs);
}
If you want to convert a CharSequence to a String, just use the toString method that must be implemented by every concrete implementation of CharSequence.
Hope ...