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Renaming table in rails
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You would typically do this sort of thing in a migration:
class RenameFoo < ActiveRecord::Migration
def self.up
rename_table :foo, :bar
end
def self.down
rename_table :bar, :foo
end
end
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Any way to write a Windows .bat file to kill processes? [closed]
...mpany installs on my machine for security and compliance. What I'd like to do is have a .bat file or script of some kind with which I can kill the processes in question.
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iPad/iPhone hover problem causes the user to double click a link
...the mouse over events are translated in clicks...so for instance i have to do two clicks instead of one..(the first hover, than the actual click)
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How can I set the color of a selected row in DataGrid
...nge the background brush for a selected row.
– Gatmando
Jan 6 '11 at 14:32
5
wounderfull. Any ide...
Does Android keep the .apk files? if so where?
After android installs an application from the Marketplace, does it keep the .apk file?
19 Answers
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Android Fragment lifecycle over orientation changes
...iner, fragment);
fragmentTransaction.commit();
} else {
// do nothing - fragment is recreated automatically
}
Be warned though: problems will occur if you try and access Activity Views from inside the Fragment as the lifecycles will subtly change. (Getting Views from a parent Activ...
Append value to empty vector in R?
... <- 1; b <- append(b, 2). But as you mention, c() is a more R way of doing things.
– juanbretti
Jul 29 '17 at 18:48
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How can I add a class to a DOM element in JavaScript?
How do I add a class for the div ?
10 Answers
10
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get dictionary value by key
...s:
String xmlfile = Data_Array["XML_File"];
Note that if the dictionary doesn't have a key that equals "XML_File", that code will throw an exception. If you want to check first, you can use TryGetValue like this:
string xmlfile;
if (!Data_Array.TryGetValue("XML_File", out xmlfile)) {
// the k...
FormsAuthentication.SignOut() does not log the user out
Smashed my head against this a bit too long. How do I prevent a user from browsing a site's pages after they have been logged out using FormsAuthentication.SignOut? I would expect this to do it:
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