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CSS styling in Django forms
.../" method="post">
{{ form.non_field_errors }}
<div class="fieldWrapper">
{{ form.subject.errors }}
{{ form.subject.label_tag }}
{{ form.subject }}
<span class="helptext">{{ form.subject.help_text }}</span>
</div>
</form>
form.subject is an ins...
Scala type programming resources
...ract trait
trait Lambda {
type subst[U <: Lambda] <: Lambda
type apply[U <: Lambda] <: Lambda
type eval <: Lambda
}
// Implementations
trait App[S <: Lambda, T <: Lambda] extends Lambda {
type subst[U <: Lambda] = App[S#subst[U], T#subst[U]]
type apply[U] = Nothing...
Disable a Button
...
If you want the button to stay static without the "pressed" appearance:
// Swift 2
editButton.userInteractionEnabled = false
// Swift 3
editButton.isUserInteractionEnabled = false
Remember:
1) Your IBOutlet is --> @IBOutlet weak var editButton: UIButton!
2) Code above go...
You need to use a Theme.AppCompat theme (or descendant) with this activity
...ason you are having this problem is because the activity you are trying to apply the dialog theme to is extending ActionBarActivity which requires the AppCompat theme to be applied.
Update: Extending AppCompatActivity would also have this problem
In this case, change the Java inheritance from ...
PowerShell: Setting an environment variable for a single command only
... to my PowerShell profile.
function cmd_special()
{
$orig_master = $env:app_master
$env:app_master = 'http://host.example.com'
mycmd $args
$env:app_master = $orig_master
}
So mycmd is some executable that operates differently depending on the value of the environment variable app_master. ...
Does git return specific return error codes?
...
*nix apps return a status of 0 for complete success. Other status codes are determine by the app. There are 255 other codes which meanings depend on the app. See their man pages for details.
– shawnhcorey
...
How to validate an e-mail address in swift?
...n:
"THE REASONABLE SOLUTION"
Used and tested for years in many huge volume apps.
1 - it avoids the horrific regex mistakes often seen in example code
2 - it does NOT allow ridiculous emails such as "x@x"
(If for some reason you need a solution that allows nonsense strings such as 'x@x', use another ...
What is a message pump?
...% of its time there, waiting for Windows to tell it something interesting happened. TranslateMessage() is a helper function that translates keyboard messages. DispatchMessage() ensures that the window procedure is called with the message.
Every GUI enabled .NET program has a message loop, it is s...
How to include layout inside layout?
...ical="true"
android:gravity="center"
android:text="@string/app_name"
android:textColor="#000000" />
</RelativeLayout>
No I use the tag in XML to add another layout from another XML file.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/androi...
How to get screen dimensions as pixels in Android
... case you're describing however, a margin/padding in the layout seems more appropriate.
Another way is: DisplayMetrics
A structure describing general information about a display, such as its size, density, and font scaling. To access the DisplayMetrics members, initialize an object like this:
...