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What is a NullReferenceException, and how do I fix it?
... to find out where the reference is or isn't set, right-click its name and select "Find All References". You can then place a breakpoint at every found location and run your program with the debugger attached. Every time the debugger breaks on such a breakpoint, you need to determine whether you exp...
ReSharper - force curly braces around single line
...f-else" statement" to "Use braces for multiline"
After saving the changes, select a scope to reformat (could be a code selection, file, folder, project, solution - anything you want).
Choose ReSharper > Tools > Cleanup Code.
Profit.
Remember that Code Cleanup does numerous things and they're...
Do HTML WebSockets maintain an open connection for each client? Does this scale?
...s (http.sys) is IOCP oriented and very efficient (running in kernel mode). From this point of view, there won't be a lot of difference at scaling between WebSockets and regular HTTP connection. One TCP/IP connection uses a little resource (much less than a thread), and modern OS are optimized for ha...
Easier way to populate a list with integers in .NET [duplicate]
... numbers = Enumerable.Range(from, end - from + 1)
.Select(n => f(n))
.ToList();
For example:
var primes = Enumerable.Range(1, 10)
.Select(n => Prime(n))
.ToList();
would generate the first ten pr...
What is the overhead of creating a new HttpClient per call in a WebAPI client?
...t with a new HttpClient requires re-establishing a new TCP/IP connection.
From my tests, using plain HTTP on a LAN, the performance hit is fairly negligible. I suspect this is because there is an underlying TCP keepalive that is holding the connection open even when HttpClientHandler tries to clos...
How to remove unused imports from Eclipse
...rences → Java → Editor → Save Actions.
Check the option "Perform the selected actions on save".
Check the option "Organize imports".
Now every time you save your classes, eclipse will take care of removing the unused imports.
...
jQuery/Javascript function to clear all the fields of a form [duplicate]
...switch(this.type) {
case 'password':
case 'select-multiple':
case 'select-one':
case 'text':
case 'textarea':
$(this).val('');
break;
case 'checkbox':
...
Java switch statement: Constant expression required, but it IS constant
...ice.Choice1;
switch(ch) {
case Choice1:
System.out.println("Choice1 selected");
break;
case Choice2:
System.out.println("Choice2 selected");
break;
case Choice3:
System.out.println("Choice3 selected");
break;
}
}
}
Source:
Switch statement with enum
...
What is the difference between CurrentCulture and CurrentUICulture properties of CultureInfo in .NET
...been set up on the server OS as defaults.
CurrentUICulture can be captured from the user agent, and may represent the user interface culture of the client connecting to the website. For example, if you load that website from Russia, your local settings are set to use Russian language, and your user ...
How to see log files in MySQL?
...print the value of error log, run this command in the terminal:
mysql -e "SELECT @@GLOBAL.log_error"
To read content of the error log file in real time, run:
sudo tail -f $(mysql -Nse "SELECT @@GLOBAL.log_error")
Note: Hit Control-C when finish
When general log is enabled, try:
sudo tail -f ...