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ASP.NET Web API OperationCanceledException when browser cancels the request
When a user loads a page, it makes one or more ajax requests, which hit ASP.NET Web API 2 controllers. If the user navigates to another page, before these ajax requests complete, the requests are canceled by the browser. Our ELMAH HttpModule then logs two errors for each canceled request:
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GOTO still considered harmful? [closed]
Everyone is aware of Dijkstra's Letters to the editor: go to statement considered harmful (also here .html transcript and here .pdf) and there has been a formidable push since that time to eschew the goto statement whenever possible. While it's possible to use goto to produce unmaintainable, s...
What is the use for Task.FromResult in C#
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One example would be a method that makes use of a cache. If the result is already computed, you can return a completed task with the value (using Task.FromResult). If it is not, then you go ahead and return a task represent...
How to create an alias for a command in Vim?
...:Write won’t. (Note that this affects any commands that match, including ones that you might not expect. For example, the command :saveas W Z will be replaced by :saveas w Z, so be careful with this.)
Update
Here is how I would write it now:
cnoreabbrev <expr> W ((getcmdtype() is# ':' &&...
What are the best practices for catching and re-throwing exceptions?
...ss you intend to do something meaningful.
"Something meaningful" might be one of these:
Handling the exception
The most obvious meaningful action is to handle the exception, e.g. by displaying an error message and aborting the operation:
try {
$connect = new CONNECT($db, $user, $password, $d...
What are the disadvantages of using persistent connection in PDO
...database. Unless you have identified creating database connections as the one thing that is a bottleneck in your script (this means you've done code profiling using xdebug and/or xhprof), you should not consider persistent connections as a solution to anything.
Further, most modern databases (incl...
Mapping composite keys using EF code first
...ut in the column order, otherwise how is SQL Server supposed to know which one goes first? Here's what you would need to do in your code:
public class MyTable
{
[Key, Column(Order = 0)]
public string SomeId { get; set; }
[Key, Column(Order = 1)]
public int OtherId { get; set; }
}
You can...
Jdbctemplate query for string: EmptyResultDataAccessException: Incorrect result size: expected 1, ac
...g, queryForObject all such methods expects that executed query will return one and only one row. If you get no rows or more than one row that will result in IncorrectResultSizeDataAccessException . Now the correct way is not to catch this exception or EmptyResultDataAccessException, but make sure th...
How to tell Eclipse Workspace?
...se.ui.ide.prefs file. The workspace name shown in this dialog is the first one from this list.
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Use email address as primary key?
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In case any one wonders, as I did, a GUID key would be equivalent to an email key I think.
– tofutim
Feb 12 '16 at 19:07
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