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How do I hide a menu item in the actionbar?
...Item pointing to such item, call setVisible on it to adjust its visibility and then call invalidateOptionsMenu() on your activity so the ActionBar menu is adjusted accordingly.
Update: A MenuItem is not a regular view that's part of your layout. Its something special, completely different. Your cod...
Adding an identity to an existing column
I need to change the primary key of a table to an identity column, and there's already a number of rows in table.
19 Answe...
How To Create Table with Identity Column
...'s specific situation, would be to edit the one line in the generated DDL, and not try to write it from scratch using simplest syntax. Also the example you gave does not assign a name to the PK constraint as OP has. Many prefer my constraints named so they have the same name in all environments (dev...
Nested attributes unpermitted parameters
...bject also belongs to a Person . I want a form that can create the Bill and its children Dues all in one page. I am trying to create a form using nested attributes, similar to ones in this Railscast .
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JPA: How to have one-to-many relation of the same Entity type
...
Yes, this is possible. This is a special case of the standard bidirectional @ManyToOne/@OneToMany relationship. It is special because the entity on each end of the relationship is the same. The general case is detailed in Section 2.10.2 of the JPA 2.0 spec.
Here's a worked exa...
How can I get browser to prompt to save password?
...ound a complete solution for this question. (I've tested this in Chrome 27 and Firefox 21).
There are two things to know:
Trigger 'Save password', and
Restore the saved username/password
1. Trigger 'Save password':
For Firefox 21, 'Save password' is triggered when it detects that there is a ...
Why this line xmlns:android=“http://schemas.android.com/apk/res/android” must be the first in the la
...n XML, xmlns declares a Namespace. In fact, when you do:
<LinearLayout android:id>
</LinearLayout>
Instead of calling android:id, the xml will use http://schemas.android.com/apk/res/android:id to be unique. Generally this page doesn't exist (it's a URI, not a URL), but sometimes it is...
iOS: How to store username/password within an app?
I have a login-screen in my iOS app.
The username and password will be saved in the NSUserDefaults and be loaded into the login-screen again when you enter the app again (of course, NSUserDefaults are permanent).
...
Bootstrap 3 Collapse show state with Chevron icon
...umenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable...
css label width not taking effect
I have a generic form, which I'd like to style to align the labels and the input fields.
For some reason when I give a width to the label selector, nothing happens:
...