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Can I scroll a ScrollView programmatically in Android?
...full scroll to the top or the bottom.
A simple example: in a registration form, if the user tap the "Signup" button when a edit text of the form is not filled, you want to scroll to that specific edit text to tell the user that he must fill that field.
In that case, you can do something like that:...
Determine the type of an object?
... (which you shouldn't be doing to begin with), isinstance is the preferred form anyhow, so neither == or is need be used.
– Mike Graham
Feb 8 '10 at 22:50
23
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Getting the last element of a list
... it's certainly not a global solution - it would be nice to have a syntax form where None was the result
– Mark Mullin
Mar 5 '17 at 20:16
18
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When to favor ng-if vs. ng-show/ng-hide?
...e ng-show/ng-hide does not
Elements that are not in the DOM have less performance impact and your web app might appear to be faster when using ng-if compared to ng-show/ng-hide. In my experience, the difference is negligible. Animations are possible when using both ng-show/ng-hide and ng-if, with ...
Calling JavaScript Function From CodeBehind
...order for MyFunction() to work, MyFunction() has to be defined before the form tags or inside of them, but NOT after the </form> ending tag (otherwise a Object expected error will occur)
– BornToCode
Aug 22 '13 at 14:53
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javascript check for not null
Below is a code snippet, where we retrieve a form value.
Before further processing check if the value is not null..
10 Answ...
How can I call a custom Django manage.py command directly from a test driver?
... additional requirements.
But if you by some reason cannot decouple logic form command you can call it from any code using call_command method like this:
from django.core.management import call_command
call_command('my_command', 'foo', bar='baz')
...
Store images in a MongoDB database
...("./uploads/" + filename).pipe(writestream);
}
});
In your view:
<form action="/" method="post" enctype="multipart/form-data">
<input type="file" name="photos">
With this code you can add single as well as multiple images in MongoDB.
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How does the MapReduce sort algorithm work?
...o Codasyl programmers, noting both are "writing in a low-level language performing low-level record manipulation". MapReduce's use of input files and lack of schema support prevents the performance improvements enabled by common database system features such as B-trees and hash partitioning, though ...
Git submodule add: “a git directory is found locally” issue
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
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