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Extension methods cannot be dynamically dispatched
...ot supported.
Cast the dynamic types to actual types, and it will work.
From what I see now, I'd say:
(string) ViewBag.MagNo
Which would result in
@foreach (var item in Model)
{
@Html.DropDownListFor(modelItem => item.TitleIds,
new SelectList(ViewBag.TitleNames as System.Collec...
Representing null in JSON
...ber is that the empty string and the number zero are conceptually distinct from null.
In the case of a count you probably always want some valid number (unless the count is unknown or undefined), but in the case of strings, who knows? The empty string could mean something in your application. Or m...
Finding row index containing maximum value using R
... max. I've found it useful for looking up the dates of near maximal values from another column.
– djhocking
Jul 31 '12 at 18:06
7
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How to kill a child process after a given timeout in Bash?
...a bash script that launches a child process that crashes (actually, hangs) from time to time and with no apparent reason (closed source, so there isn't much I can do about it). As a result, I would like to be able to launch this process for a given amount of time, and kill it if it did not return su...
Create array of symbols
...
The original answer was written back in September '11, but, starting from Ruby 2.0, there is a shorter way to create an array of symbols! This literal:
%i[address city state postal country]
will do exactly what you want.
...
How does OpenID authentication work?
...and very informative about what happens behind the scenes.
(Answer pasted from my answer at OpenID login workflow?.)
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Why use sprintf function in PHP?
...I want to use that string I can simply do this:
$name = 'Josh';
// $stringFromDB = 'Hello, My Name is %s';
$greeting = sprintf($stringFromDB, $name);
// $greetting = 'Hello, My Name is Josh'
Essentially it allows some separation in the code. If I use 'Hello, My Name is %s' in many places in my co...
SQL set values of one column equal to values of another column in the same table
...her example is what you're looking for. If you're just updating one column from another column in the same table you should be able to use something like this.
update some_table set null_column = not_null_column where null_column is null
...
How to properly handle a gzipped page when using curl?
I wrote a bash script that gets output from a website using curl and does a bunch of string manipulation on the html output. The problem is when I run it against a site that is returning its output gzipped. Going to the site in a browser works fine.
...
What does “The APR based Apache Tomcat Native library was not found” mean?
...is a library which is used to improve performance (on production systems). From Apache Portable Runtime (APR) based Native library for Tomcat:
Tomcat can use the Apache Portable Runtime to provide superior
scalability, performance, and better integration with native server
technologies. The ...