object

Javascript question: Problem with calling an objects methods

Say I have an object called FieldEdit. I define the function constructor for this object, instantiate it via. var obj = new FieldEdit(), and define its methods by FieldEdit.prototype.<method name> = function() { ... }. Under what situations would calling this object's methods within the objects' other methods (via. this.<method name>()...

c# Adding a new object to an object context returns "error occurred while updating the entries", duplicate entry for primary key

I'm having a problem trying to add an object to an object context in Entity Framework. Here is the code : //related object ids are retrieved from another context. //since I thought the problem could be linked to object loaded in this context, I tried to //close it and start on a fresh object context... int idetab = currentEtab.Id; lon...

object creation in stack

Can I create an object of my class in stack regarding .net and C#? For example: class abc { int i=1; } abc a1=new abc(); Now, here the object is created in heap. So, is there any way to create the object in stack memory of ram if the size of object is not big? ...

WPF databinding to composite class patterns?

I am trying out WPF for the first time and I am struggling with how to bind controls to a class that is built up using composition of other objects. For example, If I have class Comp that is built up of two separate classes (note various elements left out for clarity): class One { int _first; int _second; } class Two { string...

Loading XML into a flash object.

Hello, I am trying to load data from an XML file into a flash object. When making the flash object in actionscript it looks like this: var presentationObj:Object = { casestudies: { audi: { titleStr: 'Audi', placement: 'study', slides:{ 1:{ src:'img/page1.jpg', group:'img' }, 2:{ src:'img/page2.jpg', group:'img' } } } } ...

JavaScript object sub-class

I want to create sub-class B that inherits from super-class A. my code here: function A(){ this.x = 1; } B.prototype = new A; function B(){ A.call(this); this.y = 2; } b = new B; Console.log(b.x + " " + b.y ); when run it,it show B is undefined. ...

Value Type Vs Reference Type - Object Class C#

if Value Types and Reference Type are from Object Type which is a reference type, then how value type is value type and reference type is reference when they all come from refernce type. ...

The difference between Classes, Objects, and Instances

What are class, object and instance in the context of java? Please illustrate your answer with examples. ...

MVC and the communication between them. What did i miss?

Hey all, trying to learn objective-c. It was going quite well, until I realized I was missing a link. When building in the spirit of MVC, I understand it as you Model and View should never talk to eachother. I have this problem I'm messing around with now. A model containing a polygon class. Contains an polygon object with attributes...

Object Conversion Pattern

Hi there. So I have several different objects coming from external sources (unmodifiable) that represent the same concept. For example, Address. I have com.namespace1.Address (with fields houseNum, street, city), com.namespace2.Address (with fields h, s, c), namespace3.com.CoolAddress (with fields house_num, street, citY). The proble...

Cannot convert object, recieved from ajax call, into a long

I'm using Asp.Net-Mvc, I have this method in my controller: [AcceptVerbs(HttpVerbs.Post)] public ActionResult LinkAccount(string site, object id) { return this.Json(id); } Here's the ajax method that calls it: $.post("/Account/LinkAccount", { site: "Facebook", id: FB.Faceboo...

PHP5: Creating default object from empty value

I'm getting an error in my PHP code Strict Standards: Creating default object from empty value. The code I'm using is: $u = new User(); $user->id = $obj['user_id']; The error is appearing on the second line, where I set the id property. The user class has id set as a private property with magic getters and setters defined. Strangely...

Generating a class from an object (JavaScript)

I'm trying to generate a class from an object in JavaScript. For example: var Test = { constructor: function() { document.writeln('test 1'); }, method: function() { document.writeln('test 2'); } }; var TestImpl = function() { }; TestImpl.prototype.constructor = Test.constructor; TestImpl.prototype.method = Test.method; var x =...

mysqli using prepare

Hello guys. I need some help, I have created this function and it works fine, but now I need to use "prepare" in MySQLi. Can I get some help? I have tried http://dk.php.net/manual/en/mysqli.prepare.php but I don't really understand how to prepare work with MySQLi. My db obj is ( $this->db ) in my class. I need a sample of my own cod...

JavaScript object size

I want to know the size occupied by a JavaScript object. Take the following function - function Marks() { this.maxMarks = 100; } function Student() { this.firstName = "firstName"; this.lastName = "lastName"; this.marks = new Marks(); } Now.. i instantiate the student var stud = new Student(); so that I can do stuff like ...

C# Get progID from COM object

Hi, i would like to know if there is a way to get the progId of a com object in c#. eg - i have a webBrowser object that exposes a document object which is COM. is there a way to figure out what the progID of that document object is? I know you can get the object from progID, just not sure how to do the other way around. Thanks. ...

Object Graphs and Inheritance

I vaguely understand the concept of an object graph. Does it only apply to in memory objects built via composition; or is inheritance a structual attribute of the graph as well? ...

IDispatch object that responds to all properties?

I want to create an IDispatch object that returns a value for every property. Ask it for "foo", it returns something. "bar" returns something. "faid1jhgi31jifj" as well. Any pointers? ...

When is an object in Javascript constructed?

Consider the following Javascript function (1): function setData(domElement) { domElement.myDataProperty = { 'suppose': 'this', 'object': 'is', 'static': 'and', 'pretty': 'big' }; }; Now what I don't like about this function is that the exact same object is created every time the function is called. Since the objec...

JavaScript - Watch for object properties changes

I just read Mozilla's documentation for the watch() method. It looks very useful. However, I can't find something similar for Safari. Neither IE. Do you use this method? How do you manage portability across browsers? Thanks! ...