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• Missing Project templates in XCode

  - by coure06

  I have installed xcode 3.2 with iphone SDK. (without Mac OS 10.4 SDK). WHen i create new project i only got these options for Mac OS -- Application -- Framework and Library -- Application plugin -- System plugin --Other But a book named: Programming Object C 2.0. From which i am learning object C. Its showing XCode with these templates for Mac OS --Application --Audio Units --Automater actions --Bundles --Command Line Utility --dynamic library --Framework --Java --Kernal Extensions --Standard Apple plugin --Static Library --Other I need the Command Line Utility template so that can create sample projects mentioned in book.

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• basics of c++ encapsulation

  - by sasquatch

  I have a task to create class Encapsulation, with fields in available encapsulation sections. Then I must create an application showing all allowed and forbidden methods of fields access. What are the encapsulations sections in c++ ? And what methods apart from object.field or *object-field are there anyway ?

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• Android passing objects between activities

  - by Stan

  Say if I have a locationManager(LM) object in activity A, which is my main menu. All the sub-activities need to use LM. In a good design, should I pass LM object to sub-activities? How? Please suggest some good coding pattern. Thanks.

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• Joining tables 3 level deep using Alias in Hibernate Criteria

  - by chrismathew

  4 tables. table 1 mapped to table 2 mapped to table 3 mapped to table 4. I want to get a column data from table 4, in my search criteria for table 1 object. Is it possible using Alias. Is there any way using any API of Hibernate Criteria to get table 4 data in table 1 object using search criteria.

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• Custom controls in 2008

  - by Bala

  Using custom controls in VS 2008 shows frequent errors like object reference not set to an instance of an object and 'could not be set on prperty'.

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• the selector in JavaScript

  - by Small Wolf

  I want to get the object of this code , <input class="radio" id="conversation_sub_kind_id_208" name="conversation[sub_kind_id]" onclick="set_department_name('department_name208')" type="radio" value="208" /> I want to use jQuery Framework to get the object, like the document.getElementbyTagName("conv..."); what should i do in here? Thank you, and best regards!

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• What pattern to use in this scenario?

  - by jess

  Hi, We have got many forms(windows app C#) in our application.We have similar steps in most of them - user adds a new object(in a grid),fills values and save.On,save,we validate,and save if everything ok,else show message.Now,adding of object usually means we add a new row with some default values.

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• JsonIgnore attributes not working in ASP.NET?

  - by Geoffrey

  I've got an object in my project with circular references. I've put [JsonIgnore] above the field like so: [JsonIgnore] public virtual Foobar ChildObject { get; set; } I'm still getting circular reference errors when I serialize the object. The only fields that do not have JsonIgnore are string fields and should not cause this. Is there something else I need to do to get JsonIgnore to work? Thanks!

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• problem understanding templates in c++

  - by hidayat

  Template code is not compiled until the template function is used. But where does it save the compiled code, is it saved in the object file from which used the template function in the first place? For example, main.cpp is calling a template function from the file test.h, the compiler generates an object file main.o, Is the template function inside the main.o file? because template code is not inlined, is it?

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• How value objects are saving and loading?

  - by yeraycaballero

  Since there isn't respositories for value objects. How can I load all value objects? Suppose we are modeling a blog application and we have this classes: Post (Entity) Comment (Value object) Tag (Value object) PostsRespository (Respository) I Know that when I save a new post, its tags are saving with it in the same table. But how could I load all tags of all posts. Has PostsRespository got a method to load all tags? I usually do it, but I want to know others opinions

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• PHP ORM's, multiple tables and efficiency

  - by sunwukung

  Let's say I have a data mapper function that aggregates multiple tables and generates an object instance from that data. The mapper has a typical save() method which delegates to update/insert. When the mapper executes save - ideally it isolates object fields that have been modified, thus preventing the code from blanket bombing the database. How would you go about this?

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• when a data is put in a empty queue i want my thread to starts its activity

  - by sia

  i want my thread to sleep when a queue is empty and just wake up when a data is put in it, should i use condition object? i have never used this object before! and i can,t find a simple example in python

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• Alternatives of Datatable

  - by mavera

  In my web application, I have a dynamic query that returns huge data to datatable, and this query is often recalled with different parameters. So database is exhausted. I want to get all record with no parameters to an object, and perform queries (may be with linq) on this object. So database will not be exthausted. Which objects can be used instead of datatable?

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• Creating a POST body in VBA

  - by Moses Ting

  Does anyone know how to construct a POST DATA body in VBA? I'm trying to upload rather lengthy strings via a post call using the "Microsoft.XMLHTTP" object. I'm not tied to using that object for making the HTTP request either.

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• how to find out which textbox is currenlty selected.

  - by abcdefghijklmnopqrstuvwxyz

  I have 3 text-boxes, how do I find out which text-box is currently selected (has focus). I am unable to come up with anything. Public Class Form1 Public activeTextBox As TextBox = CType(Me.ActiveControl, TextBox) Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click activeTextBox.Text = activeTextBox.Text & "This is text 1" End Sub Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click activeTextBox.Text = activeTextBox.Text & "This is the text 2" End Sub End Class

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• Interpreter typing in C

  - by typus

  I'm developing an interpreter and I have some questions to it. I recently saw a small C interpreter that used a very simple struct like the below for all its objects/values in the language: struct Object { ubyte type; ubyte value; }; This struct can hold strings, integers, bools and lists (I think) used in the language the interpreter is working with. How can you get this Object struct to hold all these types?

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• how to implement a message pump in Non-UI thread in .net?

  - by Benny

  how to implement a message pump in non-ui thread? what i want is that the message can be an object or a command, say an Action/Func, etc. do i have to use separate queue for different type of message? say one queue for object, one queue for Action/Function? Given that the type of messages vary, how to implement it?

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• Why can't i access page viewstate in usercontrol?

  - by Rohit

  I stored a object in viewstate on Page. Now when i access the same viewsate object on usercontrol,it shows as null. I even tried creating the same viewstate with same name in usercontrol and page.Both holds different value. I understand that viewstate is a protected property. How does this thing implement in above scenerio or is there any other reason for this behaviour.

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• What does "Contract can't be in try block" mean?

  - by MatthewMartin

  I'm using the 3.5 library for microsoft code contracts public object RetrieveById(int Id) { Contract.Ensures(newObject != null, "object must not be null"); return newProject; //No error message if I move the Contract.Ensures to here //But it isn't asserting/throwing a contract exception here either } I get the compiler message: "Error 18 Contract section within try block in method 'Controller.RetrieveById(System.Int32)'

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• Can we instantiate abstract class?

  - by satheesh.droid

  I don't understand whether we can instantiate abstract class by any means because I have read we can inherit the abstract class but in have found we can create an object by calling method of other class.For example LocationProvider is an abstract class but we can create object for the same by calling getProvider() function in LocationManager class. By the following code LocationManager lm=getSystemService(Context.LOCATION_PROVIDER) LocationProvider lp=lm.getProvider("gps");

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• programming in lua, objects

  - by anon

  Sample code: function Account:new (o) o = o or {} -- create object if user does not provide one setmetatable(o, self) self.__index = self return o end taken from: http://www.lua.org/pil/16.1.html What is the purpose of the: self.__index = self line? And why is it executed every time an object is created?

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• Andriod passing objects between activities

  - by Stan

  Say if I have a locationManager(LM) object in activity A, which is my main menu. All the sub-activities need to use LM. In a good design, should I pass LM object to sub-activities? how? Please suggest some good coding pattern. Thanks.

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• Cannot use ternary operator in LINQ query

  - by Nissan Fan

  I can't figure out why I get a Object reference not set to an instance of an object. error if I use a ternary operator in my LINQ query. var courses = from d in somesource orderby d.SourceName, d.SourceType select new { ID = d.InternalCode, Name = string.Format("{0} - {1}{2}", d.InternalCode, d.SourceName, (d.SourceType.Length > 0 ? ", " + d.SourceType : string.Empty)) }; Any thoughts?

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• how to remove duplicate from a list in c# .net

  - by Richa Media and services

  i want to remove duplicate from List<Dictionary<string, object>> val = new List<Dictionary<string, object>>();

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• System.identityHashCode() and compacting garbage collectors

  - by FredOverflow

  I was just wondering how System.identityHashCode() is able to always yield the same result for a given object, even if the garbage collector moves it around in memory. Does every object have an additional invisible field storing its identity, independent from its current address?

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