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How do I set a ViewModel on a window in XAML using DataContext property?
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In addition to the solution that other people provided (which are good, and correct), there is a way to specify the ViewModel in XAML, yet still separate the specific ViewModel from the View. Separating them is useful for when you want to write isolated test cases.
In App.xaml:
<Application...
What is the AppDelegate for and how do I know when to use it?
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I normally avoid the design approach implied by Andrew's use of the term "heart of your application". What I mean by this is that I think you should avoid lumping too many things in a central location -- good program design normally involves separating functionality by "ar...
iPhone - Grand Central Dispatch main thread
I have been using with success, grand central dispatch in my apps, but I was wondering what is the real advantage of using something like this:
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How to only find files in a given directory, and ignore subdirectories using bash
...r questions, but didn't find one that would enable me to grasp the concept and make it applicable to my situation based on my limited time. I'm simply running the find command to find certain files, but some files in sub-directories have the same name which I want to ignore. Thanks for any help. Bel...
What does the tilde before a function name mean in C#?
I am looking at some code and it has this statement:
6 Answers
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Converting a column within pandas dataframe from int to string
I have a dataframe in pandas with mixed int and str data columns. I want to concatenate first the columns within the dataframe. To do that I have to convert an int column to str .
I've tried to do as follows:
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Confusion: @NotNull vs. @Column(nullable = false) with JPA and Hibernate
...tation of JSR 303, however, it intelligently picks up on these constraints and translates them into database constraints for you, so you get two for the price of one. @Column(nullable = false) is the JPA way of declaring a column to be not-null. I.e. the former is intended for validation and the lat...
Authenticating in PHP using LDAP through Active Directory
...y knowledge, input sanitization isn't required here as ldap_bind would be handling it and special characters aren't an issue.
– ceejayoz
Jan 8 '14 at 21:34
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add a string prefix to each value in a string column using Pandas
... like to append a string to the start of each value in a said column of a pandas dataframe (elegantly).
I already figured out how to kind-of do this and I am currently using:
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How do I write data into CSV format as string (not file)?
...Writer:
This module implements a file-like class, StringIO, that reads and writes a string buffer (also known as memory files).
There is also cStringIO, which is a faster version of the StringIO class.
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