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C# Java HashMap equivalent
...ndexer. It goes like this :
public class NullableDictionnary : Dictionary<string, string>
{
string null_value;
public StringDictionary this[string key]
{
get
{
if (key == null)
{
return null_value;
}
...
Finding the type of an object in C++
...
dynamic_cast should do the trick
TYPE& dynamic_cast<TYPE&> (object);
TYPE* dynamic_cast<TYPE*> (object);
The dynamic_cast keyword casts a datum from one pointer or reference type to another, performing a runtime check to ensure the validity of the cast.
If you...
How to implement the factory method pattern in C++ correctly
...returns object and ownership
// Caller responsible for deletion.
#include <memory>
class FactoryReleaseOwnership{
public:
std::unique_ptr<Foo> createFooInSomeWay(){
return std::unique_ptr<Foo>(new Foo(some, args));
}
};
// Factory retains object ownership
// Thus r...
Bootstrap 3 modal vertical position center
...l suporte can use JavaScript to set the margins.
– Walter Chapilliquen - wZVanG
Apr 4 '15 at 23:22
21
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How to print the full traceback without halting the program?
... exception:
Traceback (most recent call last):
File "e.py", line 7, in <module>
raise TypeError("Again !?!")
TypeError: Again !?!
If you really need to access the original traceback one solution is to cache the exception infos as returned from exc_info in a local variable and display ...
What is the difference between visibility:hidden and display:none?
The CSS rules visibility:hidden and display:none both result in the element not being visible. Are these synonyms?
18 A...
how to make twitter bootstrap submenu to open on the left side?
...implest way would be to add the pull-left class to your dropdown-submenu
<li class="dropdown-submenu pull-left">
jsfiddle: DEMO
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ASP.NET MVC A potentially dangerous Request.Form value was detected from the client when using a cus
...this attribute to allow all HTML
[ValidateInput(false)]
public ActionResult SomeAction(MyViewModel myViewModel)
Brute force in web.config - definitely not recommended
In the web.config file, within the tags, insert the httpRuntime element with the attribute requestValidationMode="2.0". Also ad...
How to call a PHP function on the click of a button
...er to the code below for more details.
Change your markup like this
<input type="submit" class="button" name="insert" value="insert" />
<input type="submit" class="button" name="select" value="select" />
jQuery:
$(document).ready(function(){
$('.button').click(function()...
When do I use a dot, arrow, or double colon to refer to members of a class in C++?
...
Suggesting an alternative for sbi's point 3
a->b is only used if a is a pointer. It is a shorthand for (*a).b, the b member of the object that a points to. C++ has two kinds of pointers, "regular" and smart pointers. For regular pointer...