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Can javax.persistence.Query.getResultList() return null?
...ct null in other places. Especially as the documentation for getResultList reads Execute a SELECT query and return the query results as a(n) (un)typed List. - @return a list of the results. I'd still check for null of course and return an empty list myself if needed.
– René
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How to replace list item in best way
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You could make it more readable and more efficient:
string oldValue = valueFieldValue.ToString();
string newValue = value.ToString();
int index = listofelements.IndexOf(oldValue);
if(index != -1)
listofelements[index] = newValue;
This asks o...
Amazon S3 boto - how to create a folder?
...tools do represent keys with slashes as such. See Working with Folders and read the part: "So the console uses object key names to present folders and hierarchy. In Amazon S3, you have only buckets and objects."
– Antti Haapala
Aug 4 '14 at 18:29
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Python Create unix timestamp five minutes in the future
...code block because we all just scan the code in the answers first and only read the rest if the code looks good. Good answer though.
– Matthew Purdon
Oct 4 '13 at 17:21
2
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Do asynchronous operations in ASP.NET MVC use a thread from ThreadPool on .NET 4
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Here's an excellent article I would recommend you reading to better understand asynchronous processing in ASP.NET (which is what asynchronous controllers basically represent).
Let's first consider a standard synchronous action:
public ActionResult Index()
{
// some pro...
Tab key == 4 spaces and auto-indent after curly braces in Vim
...ndtab
The help files take a bit of time to get used to, but the more you read, the better Vim gets:
:help smartindent
Even better, you can embed these settings in your source for portability:
:help auto-setting
To see your current settings:
:set all
As graywh points out in the comments, s...
How to comment and uncomment blocks of code in the Office VBA Editor
...o the beginning of the entry.
So now instead of "Comment Block" it should read &Comment Block.
Press Enter to save the change.
Click on Modify Selection again and select Image and Text.
Dismiss the Customize dialog box.
Highlight any block of code and press Alt-C. Voila.
Do the same thing for ...
Adding div element to body or document in JavaScript
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-1. This is an awful way to achieve this. If you are reading this, do not use this slow and dated solution. Look at the answer by @peter-t
– MacroMan
Jul 17 '17 at 15:50
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How to access parent Iframe from JavaScript
...od you can access a library object of the parent (only if the parent has already loaded the library). Example: access jQuery with parent.$('#something')
– Zsolti
Oct 31 '13 at 14:34
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Using ConfigurationManager to load config from an arbitrary location
... C:\Program Files\Microsoft Office\OFFICE11 folder. You should be able to read configurations values like You do in Traditional .NET.
string sMsg = System.Configuration.ConfigurationManager.AppSettings["WSURL"];
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