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Convert.ChangeType() fails on Nullable Types
... return value, so it doesn't actually have to be the destination property. Meaning you can do also do something like this:
DateTime? source = new DateTime(2015, 1, 1);
var dest = CopyValue(source, (string)null);
I did it this way instead of using an out because you can't use out w...
Is it possible to start a shell session in a running container (without ssh)
...
EDIT: Now you can use docker exec -it "id of running container" bash (doc)
Previously, the answer to this question was:
If you really must and you are in a debug environment, you can do this: sudo lxc-attach -n <ID>
Note that the id needs to be the full on...
What is Ruby's double-colon `::`?
...classes by different authors.
When you see ActiveRecord::Base in Rails it means that Rails has something like
module ActiveRecord
class Base
end
end
i.e. a class called Base inside a module ActiveRecord which is then referenced as ActiveRecord::Base (you can find this in the Rails source in ...
Setting onClickListener for the Drawable right of an EditText [duplicate]
In my app I have a EditText with a search Icon on the right side. I used the code given below.
6 Answers
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Django : How can I see a list of urlpatterns?
... edited Oct 8 '18 at 16:19
javidazac
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answered Jan 13 '12 at 1:34
...
How to hide soft keyboard on android after clicking outside EditText?
Ok everyone knows that to hide a keyboard you need to implement:
44 Answers
44
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JavaScript pattern for multiple constructors
...arguments passed in.
If you need more complex arguments, it can be a good idea to put some or all of them inside an object lookup:
function bar(argmap) {
if ('optionalparam' in argmap)
this._constructInSomeWay(argmap.param, argmap.optionalparam);
...
}
bar({param: 1, optionalparam...
How can I cast int to enum?
...oo : short
In this case the enum is mapped to the short data type, which means it will be stored in memory as a short and will behave as a short when you cast and use it.
If you look at it from a IL point of view, a (normal, int) enum looks like this:
.class public auto ansi serializable sealed...
How do I handle the window close event in Tkinter?
...y don't use "global" (I use class instance variables instead), but this is meant to be a simple, stripped-down example to demonstrate how Tk abruptly kills your periodic callbacks when the user closes the window...)
from tkinter import *
import time
# Try setting this to False and look at the prin...
The preferred way of creating a new element with jQuery
...
The first option gives you more flexibilty:
var $div = $("<div>", {id: "foo", "class": "a"});
$div.click(function(){ /* ... */ });
$("#box").append($div);
And of course .html('*') overrides the content while .append('*') doesn't, but I guess, this wasn't your question.
Another good practi...