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  • My first c# app and first null object exception

    - by Fresheyeball
    Total noob here. This is my first c# attempt, its a console application that simulates a drinking game called 'Left Right Center'. In the console I receive the following: CONSOLE Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object at LeftRightCenter.MainClass.Main (System.String[] args) [0x00038] in /Users/apple/Projects/LearningC/LearningC/Main.cs:80 [ERROR] FATAL UNHANDLED EXCEPTION: System.NullReferenceException: Object reference not set to an instance of an object at LeftRightCenter.MainClass.Main (System.String[] args) [0x00038] in /Users/apple/Projects/LearningC/LearningC/Main.cs:80 C# using System; namespace LeftRightCenter { class Player { //fields private int _quarters = 4; public int Quarters { get{ return _quarters; } set{ _quarters += value; } } public Player (string name) { } } class Dice { Random random = new Random(); public int Roll () { random = new Random (); int diceSide; diceSide = random.Next (0, 6); diceSide = (diceSide > 2) ? 3 : diceSide; return diceSide; } } class MainClass { static int activePlayer = 0; static int theCup = 0; static Player[] thePlayers = { new Player ("Jessica"), new Player ("Isaac"), new Player ("Ed"), new Player ("Bella"), new Player ("Elisa"), new Player ("Fake RedHead"), new Player ("Linda"), new Player ("MJ"), new Player ("Irene"), new Player("Devin") }; static Dice[] theDice = new Dice[2]; private static void MoveQuarter (int direction) { int numberOfPlayers = thePlayers.Length - 1; switch (direction) { case 0: thePlayers [activePlayer].Quarters = -1; theCup++; break; case 1: thePlayers [activePlayer].Quarters = -1; int leftPlayer = (activePlayer == 0) ? numberOfPlayers : activePlayer - 1; thePlayers [leftPlayer].Quarters = +1; break; case 2: thePlayers [activePlayer].Quarters = -1; int rightPlayer = (activePlayer == numberOfPlayers) ? 0 : activePlayer + 1; thePlayers [rightPlayer].Quarters = +1; break; } } public static void Main (string[] args) { int cupEndPoint = thePlayers.Length * 4 - 1; while (theCup < cupEndPoint) { foreach (Dice rattle in theDice) { if (thePlayers [activePlayer].Quarters > 0) { MoveQuarter (rattle.Roll ()); // this line seems to be the problem } } Console.WriteLine ("{0} Quarters In the Cup", theCup); } } } } I have no idea what the problem is or why, and my googling have proven more use confusing than helpful.

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  • move an object towrds touch

    - by Viral
    hi friends, I want to move an object over the screen where ever the touch moves, i.e. If I touch and drag my finger then the object should get moved, if any one know about this how to perform, please let me know. Thank you in advance, vira.

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  • Get interface constant name using its value

    - by Ravisha
    This might not have a major usecase in projects ,but i was just trying a POC kind of project where in i get the key code,and using its value i want to print the key name on screen so i want to relive myself off writing switch cases ,so thinking of going by reflection. Is there a way to get the constant integer of interface's name using its value?

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  • Bind Boolean value in Sqlite

    - by milanjansari
    Hello, Anyone have idea about how to bind Boolean in sqlite with objective - c. i know how to bind int and string but i don't know about boolean value. sqlite3_bind_int(addStmt, 1, id); sqlite3_bind_text(addStmt,3 ,[message UTF8String], -1, SQLITE_TRANSIENT); but how can i bind boolean value. Please help me. Thanks you

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  • JavaScript Object Question

    - by Frank Neville
    What I want to do with the fs object is to add multiple "items" to the fs.items property. How can I do this? You can see my attempt below, obviously this does not work. I am a beginner, go easy on me :) Thanks... var fs = { name:'test', items:[] }; fs.items = { name:'item1', value:1 }; fs.items = { name:'item2', value:2 }

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  • HttpContext.Current.User.Identity.Name loses value

    - by Yagami
    Hi, I am using HttpContext.Current.User.Identity.Name to get a user id from 2 web application i'am developping. the problem is when i'am loggin in teh first application i get always HttpContext.Current.User.Identity.Name value (i put test in Application_AuthenticateRequest event) but when i log in teh 2nd application adn i ty to naviagte trough the 1st application teh HttpContext.Current.User.Identity.Name loses value. Environnement of test : Windows XP / VS.NET 2005 / Authentication forms BTW : both application are deployed in teh same machine Thank you for your help

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  • LINQ-TO-XML not returning all value

    - by mmcglynn
    I am trying to get all values in the select. using item.Count shows the correct number of values, but only one .Value is returned from the loop. Why? Dim fooXML As XDocument = XDocument.Load(Server.MapPath("xml/foo.xml")) Dim query = _ From c In fooXML...<foobaryear> _ Select c...<event> For Each item In query Response.Write(item.Value) Next

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  • How to Call my global value in app.config file

    - by deep
    Hai, am using c# and wpf am having my value as a string, i need to call the string value in my app.config file for example in app.config file am having my connection string. the username may vary diff time. am having the user name as a globasl string. i need to call that string in my app.config connection string when application startup????

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  • formtastic - :string field value as Array and not found-s

    - by Alexey Poimtsev
    Hi, is there any possibility to send from formtastic form value of :string field like - semantic_form_for :project do |form| - form.inputs do = form.input :task_ids, :as => :string as Array? Currently value of this field is sending as String and i'd like to no parse this string in controller. Also, could you give me idea - if task with submitted id is not found - what is best way to catch this situation - validation in controller or what?

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  • Update Label Value in Cocos2d

    - by Viral
    hi friends I am making a game in cocos2d , In that while updating score the old score values get on the label and the new value get overwritten. I m using following code to display the score, LblScore = [CCLabel labelWithString:[NSString stringWithFormat:@"%d",score] dimensions:CGSizeMake(100, 300) alignment:UITextAlignmentCenter fontName:@"Arial" fontSize:32.0]; Because of this the score value are not shown and all things get massed up, If any one having idea how to update new score?

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  • How to allow user to set expressions detrmining property value in PropertyGrid

    - by savras
    I noticed that programs like Report Builder allow user to set property value or an expression determining property value. I want to the add same functionality to my application. So is there any simple way to do so or do i have to redefine all type converters so that they allow to set expression in addition to their original functionality. http://img204.imageshack.us/img204/7934/48707358.jpg

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  • Linq - get compare with transliterated value of fields

    - by Maxim
    Hi! I have a table (sql server). One of its columns ('Name') Contains Cyrillic values. From parameters i recieve value, that contains in this field but the are transliterated. i mean something like: var q = from r in m_DataContext.Table where CTransliteration.Transliterate(r.Name).Contains(trans_text) select r; How can i transliterate value on-fly?

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  • Loop through Json object

    - by Tanmoy
    I have a JSON object like the following var p = { "p1": "value1", "p2": "value2", "p3": "value3" }; Now I want to loop through all p elements (p1,p2,p3...) and get their key and values. How can I do that? I can modify the Json object if necessary . My ultimate goal is to loop through some key value pairs. And if possible I want to avoid using eval.

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  • Need help with re for matching and getting the value python

    - by laspal
    Hi, Need help regarding re. file = 'file No.WR79050107006 from files' So what I am trying to do is validate if file string contains WR + 11 digit. result = re.match('^(\S| )*(?P<sr>(\d){11})(\S| )*', file) Its validate only 11 digit but not WR before it. How can I do that? Using re after matching how can I get the match value ( WR79050107006) I can do string find index = file.find('file No.') and then get the value of next 13 char. thanks

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  • How to create javascript object from form elements using jQuery

    - by ob
    I'd like to be able to create a javascript object from my html form and am wondering if there's a good way to do this using jquery. I guess what i'm looking for is something similar to $.serialize, but which would result in a map instead of a string. <form> <input type="text" name="foo1" value="bar1" /> <input type="text" name="foo2" value="bar2" /> </form> desired result: { foo1:"bar1", foo2:"bar2" }

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