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ListView item background via custom selector
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I've been frustrated by this myself and finally solved it. As Romain Guy hinted to, there's another state, "android:state_selected", that you must use. Use a state drawable for the background of your list item, and use a different state drawable for listSelector of yo...
Android Closing Activity Programmatically
...ou press the back button, the activity goes out of view. How can this be called from inside an activity so that it closes itself.
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How to revert a merge commit that's already pushed to remote branch?
...se a merge commit has more than one parent, and Git does not know automatically which parent was the mainline, and which parent was the branch you want to un-merge.
When you view a merge commit in the output of git log, you will see its parents listed on the line that begins with Merge:
commit 8f9...
CSS vertical alignment text inside li
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line-height is how you vertically align text. It is pretty standard and I don't consider it a "hack". Just add line-height: 100px to your ul.catBlock li and it will be fine.
In this case you may have to add it to ul.catBlock li a instead since all of th...
Database design for audit logging
...a of what the old record looked like.
So for example, if you had a table called Opportunities to track sales deals, you would actually create two separate tables:
Opportunities
Opportunities_Content (or something like that)
The Opportunities table would have information you'd use to uniquely iden...
How to get CRON to call in the correct PATHs
I'm trying to get cron to call in the correct PATHs. When I run a Python script from shell the script runs fine as it uses the PATHs set in bashrc but when I use cron all the PATHs are not used from bashrc. Is there a file I can enter the PATHs into for cron like bashrc or a way to call the PATHs fr...
Abstract Class vs Interface in C++ [duplicate]
...rt interfaces (the "mature approach") instead of C++ classes (this is basically what COM does, but without the burden of COM infrastructure).
I'd use an interface if I want to define a set of rules using which a component can be programmed, without specifying a concrete particular behavior. Classes...
Why does Boolean.ToString output “True” and not “true”
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Only people from Microsoft can really answer that question. However, I'd like to offer some fun facts about it ;)
First, this is what it says in MSDN about the Boolean.ToString() method:
Return Value
Type: System.String
TrueString if the value...
Go > operators
... 2, 5 times" or 32. And 32 >> 5 is "32 divided by 2, 5 times" or 1.
All the other answers give the more technical definition, but nobody laid it out really bluntly and I thought you might want that.
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How to force LINQ Sum() to return 0 while source collection is empty
Basically when I do the following query, if no leads were matched the following query throws an exception. In that case I'd prefer to have the sum equalize 0 rather than an exception being thrown.
Would this be possible in the query itself - I mean rather than storing the query and checking query.A...