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Most efficient way to check for DBNull and then assign to a variable?
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Old now, but I've recently seen a number of cases where this was exactly what the profiler said to fix. Imagine evaluating large data sets, where every cell needs to make this check. Optimizing that can can reap big rewards. But ...
How should I structure a Python package that contains Cython code
... some Cython code. I've got the the Cython code working nicely. However, now I want to know how best to package it.
10 An...
How do you increase the max number of concurrent connections in Apache?
...2 process can service only 50 concurrent connections/clients i.e. 25x2=50. Now if more concurrent users comes, then another child process will start, that can service another 25 users. But how many child processes can be started is controlled by ServerLimit parameter, this means that in the configur...
Static Initialization Blocks
...ould be executed once per constructed instance rather than once in total.
Now in this particular case, you could use a static method instead:
public class Foo {
private static final int widgets = getWidgets();
static int getWidgets() {
int first = Widgets.getFirstCount();
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Is there a performance difference between a for loop and a for-each loop?
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Yes, but that counter is now visible outside of the loop. Sure, it's a simple fix but so is for-each!
– Indolering
Nov 4 '12 at 5:19
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Why should I avoid using Properties in C#?
...to read than the equivalent method calls. I agree that developers need to know that properties are basically methods in disguise - but I think that educating developers about that is better than making code harder to read using methods. (In particular, having seen Java code with several getters and ...
How can I get browser to prompt to save password?
... (I've tested this in Chrome 27 and Firefox 21).
There are two things to know:
Trigger 'Save password', and
Restore the saved username/password
1. Trigger 'Save password':
For Firefox 21, 'Save password' is triggered when it detects that there is a form containing input text field and input ...
How to use ssh agent forwarding with “vagrant ssh”?
... user to "git clone" but I can not use "root" user to "git clone". Do you know what seem to be the issue? Thanks
– Nam Nguyen
Jan 20 '14 at 8:31
7
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SecurityException: Permission denied (missing INTERNET permission?)
this error is really really really strange and I don't know how to reproduce it and how to fix it because I made a lot of searches but nothing was useful.
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What is WCF RIA services?
...lled CustomerContext that has a method GetCustomersByCountryQuery. You can now use this method on the client as if you were calling it on the server.
Updates, inserts and deletes follow a different pattern. When you create a domain service, you can indicate whether you want to enable editing. The c...