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  • activity parent

    - by klaus-vlad
    Hi, Can someone tell if why when starting an activity with startActivity(intent) , calling getParent() in onCreate() of the new created activity returns a nul ? Also how could I obtain the parent of an activity created in such a way ? Can a reference of the activity below the current activity in the activity stack be obtained ?

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  • Which new C#/VB features require .net Framework 4?

    - by Barry
    I remember reading in passing that some of the new language features in C# and VB that are available in VS2010 are backwards compatible with earlier versions of the framework, but that others are not. I'm pretty sure this was in reference to the new property syntax in VB. Which new features are language features vs which ones are framework specific?

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  • ASP.NET MVC - Do stylesheets have to go in the Site.Master file?

    - by Darcy
    Hi all, I noticed that I cannot add stylesheets on any page. They must be added to the master page. I already have about 15 stylesheets in the master view, which seems like overkill, since only some of the pages use a certain stylesheet. I imagine I could reference the file via javascript (although, I can't think of how off the top of my head), but it would be really nice to not have to use any.

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  • Count words like Microsoft Word does

    - by Maarten
    I need to count words in a string using PHP or Javascript (preferably PHP). The problem is that the counting needs to be the same as it works in Microsoft Word, because that is where the people assemble their original texts in so that is their reference frame. PHP has a word counting function (http://php.net/manual/en/function.str-word-count.php) but that is not 100% the same as far as I know. Any pointers?

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  • Extracting fields from a define-type object in Scheme

    - by Mike
    Hi, I am trying to extract the field 'name' or 'named-expr' from the following object: (bind 'x (num 5)) ;; note that this is not a list, but a type Binding With the Binding definition: (define-type Binding (bind (name symbol?) (named-expr WAE?))) I have tried, but received the error "reference to an identifier before its definition: Binding-name." Here is what I tried typing: (begin (Binding-name (bind 'x (num 5)))) (begin (define x (bind 'x (num 5))) (Binding-name x)) Thank you!

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  • Iterating Collection In Two Threads

    - by ChloeRadshaw
    This question relates both to C# and Java If you have a collection which is not modified and that collection reference is shared between two threads what happens when you iterate on each thread?? ThreadA: Collection.iterator ThreadA: Collection.moveNext ThreadB: Collection.iterator ThreadB: Collection.moveNext Will threadB see the first element? Is the iterator always reset when it is requested? What happens if this is interleaved so movenext and item is interleaved? Is there a danger that you dont process all elements??

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  • Build error while compiling Android source (JNI)

    - by arTsmarT
    I added some new functionality in C and when I try to build it, it gives me the following error: libnativehelper/include/nativehelper/JNIHelp.h:116: error: undefined reference to 'jniRegisterNativeMethods' error. I have included jnihelp.h in my C files. Is this a makefile related issue or am I missing something? LOCAL_PATH := $(call my-dir) include $(CLEAR_VARS) LOCAL_MODULE_TAGS := optional LOCAL_MODULE := newfile LOCAL_SRC_FILES := newfile.cpp include $(BUILD_SHARED_LIBRARY)

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  • Android Source Not Compilable?

    - by GuyNoir
    So I've been looking at code from various parts of the Android git, but when I try to load and compile many of them (camera, media player, etc) they reference classes and parts of the SDK that just aren't available even with my SDK version updated to 2.2. (for example the bitmap config option inNativeAlloc) Is there a reason that these are not in the SDK given out to developers?

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  • Accessing MasterPage variable in content page

    - by mattgcon
    I am trying to reference a variable within my MasterPage but I am receiving errors. I have tried <%@ MasterType" %: which gives the following error: `Compiler Error Message: CS0030: Cannot convert type 'IPAMIntranet.IPAMIntranetMaster' to 'ASP.ipamintranetmaster_master' and "string tVar = ((MyNamespace.MyMasterPage)Master).variable" which gives the following error: `Unable to cast object of type 'ASP.ipamintranetmaster_master' to type 'IPAMIntranet.IPAMIntranetMaster'.` Does anyone know what is happening or am I missing something.

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  • ASP.NET MVC Project and the App_Code folder

    - by brunot
    How come App_Code is not a choices in the Add ASP.NET Folder submenu in the VS solution explorer? I realize you can create one yourself manually by just renaming a New Folder, but what is the rational here? Is this not where you are supposed to put "utility" or "service layer" type classes? On a MVC project side note. I do like the fact that there is a reference to System.Configuration out-of-the-box unlike the default ASP.NET Web Form Projects.

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  • Please help me:(

    - by Marin
    Hi! Can anyone please help me?:( I'm desperrate cause I have to finish this script as soon as possible! The problem is: Deprecated: Assigning the return value of new by reference is deprecated in C:\wamp\www\FlashChat_v607\chat\inc\common.php on line 155 Notice: Undefined variable: step in C:\wamp\www\FlashChat_v607\chat\inc\common.php on line 94 and this is the link where you can find the code: http://www5.zippyshare.com/v/3592861/file.html

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  • What are the best practices for implementing the == operator for a class in C#?

    - by remio
    While implementing an == operator, I have the feeling that I am missing some essential points. Hence, I am searching some best practices around that. Here are some related questions I am thinking about: How to cleanly handle the reference comparison? Should it be implemented through a IEquatable<T>-like interface? Or overriding object.Equals? And what about the != operator? (this list might not be exhaustive).

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  • Using a join model to relate a model to itself

    - by Gabe Hollombe
    I have two models: User MentoringRelationship MentoringRelationship is a join model that has a mentor_id column and a mentee_id column (both of these reference user_ids from the users table). How can I specify a relation called 'mentees' on the User class that will return all of the users mentored by this user, using the MentoringRelationships join table? What relations do we need to declare in the User model and in the MentoringRelationship model?

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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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