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Binding a Button's visibility to a bool value in ViewModel

...converter: <ValueConversion(GetType(Boolean), GetType(Visibility))> _ Public Class BoolToVisibilityConverter Implements IValueConverter Public Function Convert(ByVal value As Object, ByVal targetType As System.Type, ByVal parameter As Object, ByVal culture As System.Globalization.Cul...
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What is an xs:NCName type and when should it be used?

...s, then they are NCNames. xs:string puts no restrictions on your names at all, but xs:NCName basically disallows ":" to appear in the string. share | improve this answer | f...
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How to read contacts on Android 2.0

I'm working on Android 2.0 and am trying to receive a list of all contacts. 9 Answers ...
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Email Address Validation in Android on EditText [duplicate]

... target) { return (!TextUtils.isEmpty(target) && Patterns.EMAIL_ADDRESS.matcher(target).matches()); } Kotlin: fun CharSequence?.isValidEmail() = !isNullOrEmpty() && Patterns.EMAIL_ADDRESS.matcher(this).matches() Edit: It will work On Android 2.2+ onwards !! Edit: Added miss...
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Can mustache iterate a top-level array?

...he'); var view = {test: 'div content', multiple : ['foo', 'bar'], multiple_2 : ['hello', 'world']}; var template = '<div>{{test}}</div><ul>{{#multiple}}<li>{{.}}</li>{{/multiple}}</ul><ul>{{#multiple_2}}<li>{{.}}</li>{{/multiple_2}}</ul>';...
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Different font size of strings in the same TextView

... is there a way to move the characters which are small to the center in the vertical direction? Basically all the characters should be vertically centered regardless of the size. – 500865 Sep 23 '16 at 22:16 ...
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How can I avoid running ActiveRecord callbacks?

I have some models that have after_save callbacks. Usually that's fine, but in some situations, like when creating development data, I want to save the models without having the callbacks run. Is there a simple way to do that? Something akin to... ...
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How often does python flush to a file?

...t size. A negative buffering means to use the system default, which is usually line buffered for tty devices and fully buffered for other files. If omitted, the system default is used. code: bufsize = 0 f = open('file.txt', 'w', buffering=bufsize) ...
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Determining if a variable is within range?

... between? would need two parameters it would not allow range. – Manish Nagdewani Nov 16 '16 at 13:12 5 ...
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How to file split at a line number [closed]

... to do this on Windows and don't want to use Cygwin, this project provides all the needed utils as native win32 binaries - unxutils.sourceforge.net – Jonathon Hill Dec 30 '11 at 3:27 ...