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What is the use of ObservableCollection in .net?
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ObservableCollection is a collection that allows code outside the collection be aware of when changes to the collection (add, move, remove) occur. It is used heavily in WPF and Silverlight but its use is not limited to there. Code can add event handlers to see when...
Why there is no “Home” button in iPad simulator in iOS 5.1 SDK?
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Someone told them that this was innovation and they all jumped and removed the button. The UX designer would have done tones of research to figure out what the most irritating thing would be for people wanting to use the simulator, and just innovated a way to fuel that irritat...
Return a `struct` from a function in C
... from a function, to which I replied: "No! You'd return pointers to dynamically malloc ed struct s instead."
9 Answers
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How do I invoke a Java method when given the method name as a string?
... has no arguments, only give methodName).
Then you invoke that method by calling
try {
method.invoke(obj, arg1, arg2,...);
} catch (IllegalArgumentException e) { ... }
catch (IllegalAccessException e) { ... }
catch (InvocationTargetException e) { ... }
Again, leave out the arguments in .in...
Python Request Post with param data
This is the raw request for an API call:
3 Answers
3
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Is an HTTPS query string secure?
I am creating a secure web based API that uses HTTPS; however, if I allow the users to configure it (include sending password) using a query string will this also be secure or should I force it to be done via a POST?
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Why does datetime.datetime.utcnow() not contain timezone information?
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you can give it a timezone like this
import pytz # 3rd party: $ pip install pytz
u = datetime.utcnow()
u = u.replace(tzinfo=pytz.utc) #NOTE: it works only with a fixed utc offset
now you can change timezones
print(u.astimezone(pytz.timezone("America/New_York")))
To get the current time in a...
Procedure expects parameter which was not supplied
...easy. Thank you. I knew the parameter existed and wasn't null and this was all it took.
– BornToDoStuff
Nov 8 '19 at 21:57
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show 2 more com...
Add UIPickerView & a Button in Action sheet - How?
...oblem and ultimately decided to take a different approach. I replaced the call to show the action sheet with a modal view controller containing a simple tableview.
There are many ways to accomplish this. Here's one way that I just implemented in a current project. It's nice because I can reuse it ...
Datatable vs Dataset
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It really depends on the sort of data you're bringing back. Since a DataSet is (in effect) just a collection of DataTable objects, you can return multiple distinct sets of data into a single, and therefore more manageable, object...