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How to avoid using Select in Excel VBA
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With ws
Set rng = .Range(.Cells(1,1), .Cells(2,10))
End With
If you do want to work with the ActiveSheet, for clarity it's best to be explicit. But take care, as some Worksheet methods change the active sheet.
Set rng = ActiveSheet.Range("A1")
Again, this refers to the active workbook. Un...
How do I horizontally center an absolute positioned element inside a 100% width div? [duplicate]
... I need it to be horizontally centered within #header . Normally, I would do a margin:0 auto for relatively positioned elements but I am stuck here. Can someone show me the way?
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How to avoid explicit 'self' in Python?
...to useful properties, such as: you can't add members which accidentally shadow non-members and thereby break code.
One extreme example: you can write a class without any knowledge of what base classes it might have, and always know whether you are accessing a member or not:
class A(some_function()...
How to set default values in Rails?
...orrect" is a dangerous word in Ruby. There's usually more than one way to do anything. If you know you'll always want that default value for that column on that table, setting them in a DB migration file is the easiest way:
class SetDefault < ActiveRecord::Migration
def self.up
change_co...
How can I convert a string to a number in Perl?
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You don't need to convert it at all:
% perl -e 'print "5.45" + 0.1;'
5.55
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Android ACTION_IMAGE_CAPTURE Intent
...til you try to hit the "Ok" button in the camera app. The "Ok" button just does nothing. The camera app stays open and nothing locks up. We can cancel out of it, but the file never gets written. What exactly do we have to do to get ACTION_IMAGE_CAPTURE to write the picture taken to a file?
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How do I ZIP a file in C#, using no 3rd-party APIs?
... a file list because it wants a MIME type for each file you add. It might do what you want.
I'm currently using these classes for a similar problem to archive several related files into a single file for download. We use a file extension to associate the download file with our desktop app. One s...
What are the differences between type() and isinstance()?
... is an instance of a base class, too), while checking for equality of type does not (it demands identity of types and rejects instances of subtypes, AKA subclasses).
Normally, in Python, you want your code to support inheritance, of course (since inheritance is so handy, it would be bad to stop cod...
How to reverse-i-search back and forth? [duplicate]
...here is a similar question here:
Control-r reverse-i-search in bash: how do you "reset" the search in Cygwin?
Found another similar question on Super User:
(reverse-i-search) in Bash
Apparently, both mention Ctrl+s, which may do the trick.
Hope that helps. I myself am trying to find a piece of...
How can I implement an Access Control List in my Web MVC application?
...bjects)
In this case the main difference you should recognize is that you Domain Objects (in example: Profile) itself contains details about owner. This means, that for you to check, if (and at which level) user has access to it, it will require you to change this line:
$this->acl->isAllowed...