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How to initialize/instantiate a custom UIView class with a XIB file in Swift
... the return type is Self rather than UIView, so the caller doesn't need to cast to the view class.
import UIKit
protocol UIViewLoading {}
extension UIView : UIViewLoading {}
extension UIViewLoading where Self : UIView {
// note that this method returns an instance of type `Self`, rather than U...
What is the correct way to start a mongod service on linux / OS X?
I've installed mongodb and have been able to run it, work with it, do simple DB read / write type stuff. Now I'm trying to set up my Mac to run mongod as a service.
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How do I set a column value to NULL in SQL Server Management Studio?
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Use This:
Update Table Set Column = CAST(NULL As Column Type) where Condition
Like This:
Update News Set Title = CAST(NULL As nvarchar(100)) Where ID = 50
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How do I get a distinct, ordered list of names from a DataTable using LINQ?
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Try out the following:
dataTable.Rows.Cast<DataRow>().select(dr => dr["Name"].ToString()).Distinct().OrderBy(name => name);
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Reading Excel files from C#
...looked it up on MSDN. Looks like the <T> is just used to attempt to cast the contents in the column to a type. In this example and just casting the data in the columns to strings. If you wanted a double you would need to call double.Parse(x.Field<string>("Cost") or something like that...
Quick and easy file dialog in Python?
I have a simple script which parses a file and loads it's contents to a database. I don't need a UI, but right now I'm prompting the user for the file to parse using raw_input which is most unfriendly, especially because the user can't copy/paste the path. I would like a quick and easy way to pre...
How do I access the host machine from the guest machine? [closed]
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On the XP machine, find your IP address by going to the command prompt and typing ipconfig. Try replacing the last number with 1 or 2. For example, if your IP address is 192.168.78.128, use http://192.168.78.1:3000.
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How to set Python's default version to 3.x on OS X?
I'm running Mountain Lion and the basic default Python version is 2.7. I downloaded Python 3.3 and want to set it as default.
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Oracle Differences between NVL and Coalesce
...you can find a difference in the fact that NVL makes an implicit data type casting if the given values are of different types. So for instance, I was getting an error using COALESCE passing it two NULL values (one explicitly set and the other taken from a column in the database, of type NUMBER), tha...
Getting the path of the home directory in C#?
...Reading environment variables is actually very portable to do (across Unix and Windows), so I'm not sure why the poster wanted to not do it.
Edited to add: For crossplatform (Windows/Unix) C#, I'd read $HOME on Unix and OSX and %HOMEDRIVE%%HOMEPATH% on Windows.
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