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Can attributes be added dynamically in C#?
...n the BCL that consume the TypeDescriptor stuff. In fact, that's how they do about half the things they really need to do.
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Using OpenGl with C#? [closed]
Is there free OpenGL support libraries for C#? If so, which one do I use and where do I find sample projects?
9 Answers
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Deleting all records in a database table
How do I delete all records in one of my database tables in a Ruby on Rails app?
7 Answers
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How do I execute inserts and updates in an Alembic upgrade script?
..., as opposed to the schema migration that is most prevalent in the Alembic docs.
This answer assumes you are using declarative (as opposed to class-Mapper-Table or core) to define your models. It should be relatively straightforward to adapt this to the other forms.
Note that Alembic provides some ...
How to impose maxlength on textArea in HTML using JavaScript
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window.onload = function() {
var txts = document.getElementsByTagName('TEXTAREA');
for(var i = 0, l = txts.length; i < l; i++) {
if(/^[0-9]+$/.test(txts[i].getAttribute("maxlength"))) {
var func = function()...
I need to generate uuid for my rails application. What are the options(gems) I have? [duplicate]
...f options, I recommend not to add additional dependencies and use SecureRandom which is builtin:
SecureRandom.uuid #=> "1ca71cd6-08c4-4855-9381-2f41aeffe59c"
See other possible formats here.
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How to import a module given the full path?
...ment of imp.load_source only sets the .__name__ of the returned module. it doesn't effect loading.
– Dan D.
Dec 14 '11 at 4:51
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What is the use of ObservableCollection in .net?
...hen the collection has changed and then react through the event handler to do some additional processing. This may be changing a UI or performing some other operation.
The code below doesn't really do anything but demonstrates how you'd attach a handler in a class and then use the event args to re...
Return a `struct` from a function in C
...return values, and assignment.
Here's a simple demonstration program that does all three - passes a structure as a parameter, returns a structure from a function, and uses structures in assignment statements:
#include <stdio.h>
struct a {
int i;
};
struct a f(struct a x)
{
struct a r...
Specifying and saving a figure with exact size in pixels
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Matplotlib doesn't work with pixels directly, but rather physical sizes and DPI. If you want to display a figure with a certain pixel size, you need to know the DPI of your monitor. For example this link will detect that for you.
If yo...