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Using a bitmask in C#
... mask I did Mon=Math.Power(2, 0), Tues=Math.Pow(2, 1), Wed=Math.Pow(2, 2), etc. so the bit position is a little more obvious for those of use who aren't used to binary to decimal conversion. Blindy's is good too since it turns into a boolean result by shifting the masked bit.
–...
What is the maximum size of a web browser's cookie's key?
...ou read about is for the entire cookie, including name, value, expiry date etc. If you want to support most browsers, I suggest keeping the name under 4000 bytes, and the overall cookie size under 4093 bytes.
One thing to be careful of: if the name is too big you cannot delete the cookie (at least ...
Why no ICloneable?
...think the question "why" is needless. There is a lot of interfaces/classes/etc... which is very usefull, but is not part of .NET Frameworku base library.
But, mainly you can do it yourself.
public interface ICloneable<T> : ICloneable {
new T Clone();
}
public abstract class CloneableBase&...
How does a Breadth-First Search work when looking for Shortest Path?
... experience.
When the (undirected for me) graph has
fixed distance (1, 6, etc.) for edges
#1
We can use BFS to find shortest path simply by traversing it
then, if required, multiply with fixed distance (1, 6, etc.)
#2
As noted above
with BFS
the very 1st time an adjacent node is reached, it is sh...
Get the generated SQL statement from a SqlCommand object?
...n improvements :)
This does an OK job on data types and output parameters etc similar to using "execute stored procedure" in SSMS. We mostly used SPs so the "text" command doesn't account for parameters etc
public static String ParameterValueForSQL(this SqlParameter sp)
{
String re...
How to prevent buttons from submitting forms
...r not. First thing on validation function is to check that variable value, etc... Too complicated and code does not say what is really wanted.
So the solution is not to have onsubmit on the form tag. Insead put it where it really is needed, on the button.
For the other side, why put onsubmit code ...
How to correctly close a feature branch in Mercurial?
...n just combine merge commit with --close-branch flag (i.e. commit modified files and close the branch simultaneously):
hg up feature-x
hg merge default
hg ci -m "Merge feature-x and close branch" --close-branch
hg branch default -f
So, that is all. No one extra head on revgraph. No extra commit.
...
Threading in a PyQt application: Use Qt threads or Python threads?
...ds are better
integrated with Qt (asynchrnous signals/slots, event loop, etc.).
Also, you can't use Qt from a Python thread (you can't for instance
post event to the main thread through QApplication.postEvent): you
need a QThread for that to work.
A general rule of thumb might be to use...
log4j logging hierarchy order
...ation is also vague on this. The output method such as error, info, debug, etc. of the logger assigns a priority/severity level to the logging message. If the logging really takes effect (the message will be visible) depends on the effective logging level of the logger being used.
...
Google maps API V3 - multiple markers on exact same spot
...40000001234,-75.7166980000001234 37.6862540000005678,-75.7166980000005678..etc.. I also tried changing my angle.
– Premshankar Tiwari
Sep 3 '13 at 12:15
...