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Django: Get an object form the DB, or 'None' if nothing matches
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Cesar CanassaCesar Canassa
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How do I see if Wi-Fi is connected on Android?
...ivityManager to get the state of the Wi-Fi adapter. From there you can check if it is connected or even available.
ConnectivityManager connManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo mWifi = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
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Where do I find old versions of Android NDK? [closed]
Does anyone know where I can find older versions of the Android NDK? Our code doesn't build with r6. Surely there must be archived versions somewhere.
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Android ListView Divider
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Folks, here's why you should use 1px instead of 1dp or 1dip: if you specify 1dp or 1dip, Android will scale that down. On a 120dpi device, that becomes something like 0.75px translated, which rounds to 0. On some devices, that t...
Cannot set content-type to 'application/json' in jQuery.ajax
...e url option ensures the the correct HTTP POST header is sent.
I dont think you need to fully qualify the name of the host, just use a relative URL as below.
$.ajax({
type: "POST",
contentType: "application/json",
url: '/Hello',
data: { name: 'norm' },
dataType: "j...
How to set size for local image using knitr for markdown?
I have a local image that I would like to include in an .Rmd file which I will then knit and convert to HTML slides with Pandoc . Per this post , this will insert the local image :
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ASP.NET MVC: Custom Validation by DataAnnotation
I have a Model with 4 properties which are of type string. I know you can validate the length of a single property by using the StringLength annotation. However I want to validate the length of the 4 properties combined.
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HTML: Include, or exclude, optional closing tags?
...end tags all would be immediately followed by their end tag so it would be kind of redundant to have to type <img src="blah" alt="blah"></img> every time.
I almost always use the optional tags (unless I have a very good reason not to) because it lends to more readable and updateable cod...
“Items collection must be empty before using ItemsSource.”
I'm trying to get images to display in a WPF ListView styled like a WrapPanel as described in this old ATC Avalon Team article: How to Create a Custom View .
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Seeing escape characters when pressing the arrow keys in python shell
In shells like the interactive python shell, you can usually use the arrow keys to move around in the current line or get previous commands (with arrow-up) etc.
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