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ASP.NET MVC controller actions that return JSON or partial html
...JSON to your page.
public ActionResult SomeActionMethod() {
return Json(new {foo="bar", baz="Blech"});
}
Then just call the action method using Ajax. You could use one of the helper methods from the ViewPage such as
<%= Ajax.ActionLink("SomeActionMethod", new AjaxOptions {OnSuccess="someme...
What is InputStream & Output Stream? Why and when do we use them?
...ources.
For example, you can write primitive data to a file:
File file = new File("C:/text.bin");
file.createNewFile();
DataOutputStream stream = new DataOutputStream(new FileOutputStream(file));
stream.writeBoolean(true);
stream.writeInt(1234);
stream.close();
To read the written contents:
Fil...
Selenium wait until document is ready
...hwjp Care to elaborate more? The JavaDocs say otherwise: "If this causes a new page to load, this method will attempt to block until the page has loaded."
– Petr Janeček
Sep 3 '14 at 19:12
...
How can I pass a parameter to a Java Thread?
...er
}
public void run() {
}
}
and invoke it thus:
Runnable r = new MyRunnable(param_value);
new Thread(r).start();
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Is it possible to update a localized storyboard's strings?
...board and 3 string files for it. It was a month ago and after that I added new view controller to app, but this controller's buttons and labels not appear in string files
...
php execute a background process
...f("%s > %s 2>&1 & echo $! >> %s", $cmd, $outputfile, $pidfile));
This launches the command $cmd, redirects the command output to $outputfile, and writes the process id to $pidfile.
That lets you easily monitor what the process is doing and if it's still running.
function isRu...
What is difference between CrudRepository and JpaRepository interfaces in Spring Data JPA?
...ds CrudRepository.
Their main functions are:
CrudRepository mainly provides CRUD functions.
PagingAndSortingRepository provides methods to do pagination and sorting records.
JpaRepository provides some JPA-related methods such as flushing the persistence context and deleting records in a batch.
...
Save all files in Visual Studio project as UTF-8
...y in Visual Studio, why not just simply write the code?
foreach (var f in new DirectoryInfo(@"...").GetFiles("*.cs", SearchOption.AllDirectories)) {
string s = File.ReadAllText(f.FullName);
File.WriteAllText (f.FullName, s, Encoding.UTF8);
}
Only three lines of code! I'm sure you can write th...
Mysql error 1452 - Cannot add or update a child row: a foreign key constraint fails
... to explain it. As cs_alumnus mentioned, there's a bigger problem: all the new values that should be referencing another value in the other table (as a Foreign key should do) may point to nothing, creating an inconsistent state. Cayetano's short and effective explanation allows you to find which val...
Bootstrap Dropdown with Hover
...
51
This will conflict with the built in collapsable mobile menu, so you should wrap it in a break point @media (min-width:480px)
...