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Mark error in form using Bootstrap
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(UPDATED with examples for Bootstrap v4, v3 and v3)
Examples of forms with validation classes for the past few major versions of Bootstrap.
Bootstrap v4
See the live version on codepen
<div class="container">
<form>
<div class="form-group row...
Selectors in Objective-C?
First, I'm not sure I really understand what a selector is. From my understanding, it's the name of a method, and you can assign it to a class of type 'SEL' and then run methods such as respondToSelector to see if the receiver implements that method. Can someone offer up a better explanation?
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Android Lint contentDescription warning
... Missing contentDescription attribute on image" for imageview. while using android lint
11 Answers
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How to clear Facebook Sharer cache?
...ook.com/tools/debug
...then put in the URL of the page you want to share, and click "debug". It will automatically extract all the info on your meta tags and also clear the cache.
share
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improve t...
Using “label for” on radio buttons
...a has the right answer. Both of Martha examples are perfectly valid HTML5. And for example if You want the whole thing to be in a frame, it is easier to style second one using css. If You want labels to be somewhere else, first one. But both are OK. Best regards!
– Jacek Kowale...
Is there a recommended format for multi-line imports?
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Personally I go with parentheses when importing more than one component and sort them alphabetically. Like so:
from Tkinter import (
Button,
Canvas,
DISABLED,
END,
Entry,
Frame,
LEFT,
NORMAL,
RIDGE,
Text,
Tk,
)
This has the added advantage of easily ...
MongoDB not equal to
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Use $ne -- $not should be followed by the standard operator:
An examples for $ne, which stands for not equal:
use test
switched to db test
db.test.insert({author : 'me', post: ""})
db.test.insert({author : 'you', post: "how to query"})
db.test.find({'post': {$ne : ""...
Escape quote in web.config connection string
...n't, have you tried some of the other string escape sequences for .NET? \" and ""?
Update 2:
Try single quotes for the connectionString:
connectionString='Server=dbsrv;User ID=myDbUser;Password=somepass"word'
Or:
connectionString='Server=dbsrv;User ID=myDbUser;Password=somepass&quot;word'
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Rails select helper - Default selected value, how?
...g to edit your record.
You need to set the default to your existing value and then only set it to the actual default if you don't have a value. Like so:
f.select :field, options_for_select(value_array, f.object.field || default_value)
For anyone not familiar with f.object.field you always use f....
Javascript - get array of dates between 2 dates
... @vaibhavkulkarni You can simply reverse the addays() prototype and modify the while loop. In addition, comments are not the place to start up a new question.
– John Hartsock
Aug 11 '15 at 0:40
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