var array1:Array = new Array();
var array2:Array = new Array();
var obj1:Object = new Object();
array1.push(obj1);
array2.push(obj1);
if i change something in obj1 will array1[0] and array2[0] also change?
If I have an object of type MyBull and a List<MyBull>:
// Just an example
MyBull x = getMeTheObjectWithIdFromDB(9);
orig.add(x);
// Again same? data object
MyBull y = getMeTheObjectWithIdFromDB(9);
Why is this false then?
// This is false, even though all the properties
// of x and y are the same.
orig.Contains<MyBull>(y);
In an interview the interviewer asked me the following question: is it possible to serialize a singleton object? I said yes, but in which scenario should we serialize a singleton?
And is it possible to design a class whose object can not be serialized?
using :
Dim a As [Assembly] = [Assembly].LoadFile("C:\test.exe")
Dim testTP As Type
testTP = a.GetType("SplashScreen", True, True)
obj1 = Activator.CreateInstance(withoutFOR)
obj1.show()
my prog made reflection to test.exe SplashScreen loaded , also obj1 filled
when SplashScreen disposed - MainForm loaded the obj1 isnothing!
when try to access obj1 VS say :
AccessibilityObject = {"Cannot
access a disposed object. Object name:
'SplashScreen'."}
I want always obj1 filled from the active form!! how????
Hi eveybody, if i have a yield return in a lock statement does the lock get taken out on each yield (5 times in the example below) or only once for all the items in the list?
Thanks
private List<string> _data = new List<string>(){"1","2","3","4","5"};
private object _locker =new object();
public IEnumerable<string> GetData()
{
lock (_locker)
{
foreach (string s in _data)
{
yield return s;
}
}
}
Reading this
When a bean is a singleton, only one
shared instance of the bean will be
managed and all requests for beans
with an id or ids matching that bean
definition will result in that one
specific bean instance being returned.
Will be managed...
What does that mean?
If there's only one object, than any modification to this object will result in that every another
attempt to get this bean will return a modified instance??
Occasionally I will know that there is a .NET Framework function that returns a particular type of object, but I can't recall the property or function name. It would be really nice to be able to somehow scan the Framework or other DLL for functions that return a particular type of object. (For example, it would have helped when I asked this question, and I have a similar question again.)
Can anyone suggest how I might do this?
I need some help defining the following object hierarchy/ database relationship in Hibernate
From the object sense – Agent is inherited from Person and Agency is inherited from Organization. they are inherited from Party which can have multiple Addresses associated with it
The database consists of
Agent
- ID
- Name
-PartyID (references Party.ID)
Agency
-ID
-Name
-PartyID (references Party.ID)
Address
-AddrID
-PartyID (references Party.ID)
-Street
Party.
-PartyID
Lets say I have
class Person
{
public Person(int age, string name)
{
Age = age;
Name = name;
}
public int Age{get;set}
public string Name{get;set}
}
and I would like to create a method that accepts a string that contains either
"age" or "name" and returns an object with the value of that property.
Like the following pseudo code:
public object GetVal(string propName)
{
return <propName>.value;
}
How can I do this using reflection?
I am coding using asp.net 3.5, c# 3.5
I am making a very basic map editor. I'm halfway through it and one problem i hit is how to delete an object.
I would like to press delete but there appears to be no keydown event for pictureboxes and it will seem like i will have it only on my listbox.
What is the best solution for deleting an object in my editor?
Is there a way to access the super object when extending objects using $.extend?
I would like to extend an object, override a method, but call the overridden superclass method in the subclass method.
What classes do you use to make string placeholders work?
String template = "You have %1 tickets for %d",
Brr object = new Brr(template, {new Integer(1), new Date()});
object.print();
In my adventures studying the boost libraries, I've come across function signatures that have parameters which are a reference to a reference to an object.
Example:
void function(int && i);
What is the purpose/benefit of doing it this way rather than simply taking a reference to an object? I assume there is one if it's in boost.
I know this is kind of a dumb question, but does anyone have an elegant (or non-elegant) LINQ approach to transform a 2D array (object[,]) into a 1D array (object[]) comprised of the first dimension of the 2D array?
Hi All,
I want to know if I can find/reach UI components of running application under Android OS.
it is possible to catch the Button/DDL/.. that was clicked by the user in real-time,
example from other subject(web):
In browser I can listen to the events and catch the DOM object that was clicked,
in this way I can save the DOM object data.
catching UI components that was changed by the user will give the option to save UI componentdata, and to perform the user actions automatic.
Thanks.
This is something I encounter frequently, but I don't know the elegant way of doing. I have a collection of Foo objects. Foo has a method bar() that may return null or a Bar object. I want to scan the collection, calling each object's bar() method and stop on the first one returning an actual reference and return that reference from the scan.
Obviously:
foos.find(_.bar != null).bar
does the trick, but calls #bar twice.
Hello everyone,
I have a 3D object with about 2000 or 3000 triangles. I want to reduce the number of triangle without affecting shape of object.
for eg, I have two triangles,
(1,1.5,2) (1.5,1.5,2) (1.7,2,2)
(1.5,1.5,2) (1.7,2,2) (2,1.5,2)
In this case these two triangle is same as a single triangle -
(1,1.5,2) (2,1.5,2) (1.7,2,2)
I dont want the manual method, But if there is any direct function or such thing which will reduce my triangle list.
Thank You.
Hi,
I'm using jQuery's selectors, especially id selector:
$("#elementId")...
How should I determine whether jQuery has found the element or not?
Even If the element with the specified id doesn't exist the next statement give me: [object Object]
alert($("#idThatDoesnotexist"));
I'd like the user to specify a RSS feed address and serialize the information from it. I am not interested in the XML format, but populate a strongly typed object from the XML. My question is, is there a standard that all RSS feeds support (Do all of them have date, title etc)? If so, is there a XSD that describes this. If not, how do I handle serializing a RSS feed to an object in ASP.NET?
hello,
I made a web application that I connect to it from a mobile device
and I used Ajax Request Object but the status of the object returned data is 500
and after search I found that this means Internel Server Error 500
Is there any suggestions what may be the reason ??
thanks
.NET contains its own equality comparison functionality, however I don't really understand how it works.
If the desired Equals() and == behaviour is to verify that every field of an object is equal to every field of another object, is it necessary to override Equals() with a method that does this explicitly?
Hi,
In the constructor of an object i need to create a WPF mediaElement object:
m_videoMedia = new MediaElement();
but the class can also be instantiated from a other thread so i need to use
Dispatcher.Invoke(DispatcherPriority.Normal,
(Action)(() => { m_videoMedia = new MediaElement(); }));
But how can I get the right dispatcher instance in that constructor :s
So a collection in VB6 keeps track of a key for each object, and you can look up the object by its key.
Does that mean collections are implemented as some sort of hashtable under the hood? I realize you can have multiple items with the same key in a collection, hence the SOME SORT.
Anybody know what type data structure a VB6 collection is supposed to represent?
For instance:
private final Object o;
public void doSomething(){
final Object local = this.o;
//access methods of local;
}
This practice is followed in lots of java classes (such as ArrayBlockingQueue). What's the benefit of this?