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Sequence contains no elements?
...ular, is it a local variable? There are some scope / capture issues, which mean that it may be desirable to use a second variable copy, just for the query:
var id = ID;
BlogPost post = (from p in dc.BlogPosts
where p.BlogPostID == id
select p).Single();
Also; if ...
The static keyword and its various uses in C++
The keyword static is one which has several meanings in C++ that I find very confusing and I can never bend my mind around how its actually supposed to work.
...
Unfortunately MyApp has stopped. How can I solve this?
...". Since we're logging by debugging. Here's all the Log methods:
Log.
d means Debug
e means error
w means warning
v means verbose
i means information
wtf means "What a terrible failure". This is similar to Log.e
So, since we used Log.d, we're checking in Debug. That's why we changed i...
Is it possible to focus on a using JavaScript focus() function?
...Owen using window.location.hash = ... is the way to do that. focus doens't mean "bring into view", it just means literally place the focus on that element.
– Fenton
Nov 16 '15 at 11:23
...
jQuery Mobile: document ready vs. page events
...The .live() method actually hooks its events to the document object, which means that the event must bubble up from the element that generated the event until it reaches the document. This can be amazingly time consuming.
It is now deprecated. The folks on the jQuery team no longer recommend its us...
In JavaScript can I make a “click” event fire programmatically for a file input element?
...is that if you want to change the button style on hover, you can't. Which means if you want it to look like all the other buttons in your app, you can't.
– Vincent
Sep 18 '19 at 1:32
...
How to specify id when uses include in layout xml file
...hat include's id is passed to the root view of the include's layout file.
Meaning that this:
// activity_main.xml
<include layout="@layout/somelayout" android:id="@+id/someid"/>
// somelayout.xml
<?xml version="1.0" encoding="utf-8"?>
<ImageView
xmlns:android="http://schemas.an...
What is the difference between DAO and Repository patterns?
...his is not the case for Repository.
Finally
Note that both patterns really mean the same (they store data and they abstract the access to it and they are both expressed closer to the domain model and hardly contain any DB reference), but the way they are used can be slightly different, DAO being a b...
Why shouldn't I use mysql_* functions in PHP?
...).
Has been removed entirely as of PHP 7.0 (released December 2015)
This means that as of 31 Dec 2018 it does not exist in any supported version of PHP. If you are using a version of PHP which supports it, you are using a version which doesn't get security problems fixed.
Lacks an OO interface
Do...
How to use a link to call JavaScript?
...:
Presentation: HTML should focus on presentation. Putting JS in an HREF means that your HTML is now, kinda, dealing with business logic.
Security: Javascript in your HTML like that violates Content Security Policy (CSP). Content Security Policy (CSP) is an added layer of security that helps to de...