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  • Find out which object being added to NSMutableArray is nil

    - by Raphael Caixeta
    I started a project using ARC, and I'm inserting a few objects into an NSMutableArray. The objects have all started out as NSStrings, and when attempting to add these objects into the array, I get the following error: Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: ' -[__NSArrayM insertObject:atIndex:]: object cannot be nil This array is holding several objects. Is there a quick way for me to find which of the objects I'm attempting to put into the array is nil?

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  • Examples of Wicket ChoiceFilteredPropertyColumn?

    - by Kane
    I'd really like some kind of filter I can use on my AjaxFallbackDefaultDataTable. It seems that I may be able to implement that with a ChoiceFilteredPropertyColumn, however I cannot seem to find any examples on how to use it, or just demos of what it does. Can someone point me to, or show me how to implement a ChoiceFilteredPropertyColumn?

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  • How do I mysql select with aliases from another table?

    - by Rob
    I'm working with a CMS system where I cannot control database column names. And I've got two related tables: Table: content +------------+----------+----------+----------+----------+ | content_id | column_1 | column_2 | column_3 | column_4 | +------------+----------+----------+----------+----------+ | 1 | stuff | junk | text | info | | 2 | trash | blah | what | bio | +------------+----------+----------+----------+----------+ Table: column_names +------------+-------------+ | column_id | column_name | +------------+-------------+ | 1 | good_text | | 2 | bad_text | | 3 | blue_text | | 4 | red_text | +------------+-------------+ What I'd like to do here is select from the first table, but select the columns AS the column_name from the second table. So my result would look like: +------------+-----------+----------+-----------+----------+ | content_id | good_text | bad_text | blue_text | red_text | +------------+-----------+----------+-----------+----------+ | 1 | stuff | junk | text | info | | 2 | trash | blah | what | bio | +------------+-----------+----------+-----------+----------+

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  • UIView animation cancels previous animation?

    - by user281300
    Hi I have an NSTIMER that counts the time, and on t = 10, it fires an animation but during that time it might happen that another animation is running. This causes the previously running animation to cut off. Any idea? i thought UIVIEW animations were ran in diff threads. I cannot use a willstop selector here since t = 10 might happen while another animation is running and might not have ended yet.

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  • Auto-needed classes?

    - by fsdfa
    Suppose I have a class A and a class B. The .h of A, needs the .h of B, and the .h of B needs the .h of A. (need = #include). All .h have the guards: #ifndef _classX_ #define _classX_ ... ... #endif But if I compile the .cpp of A, then when it includes the .h of B, the B class cannot include the .h of A class because the A class has already use the guard. How can i solve this?

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  • Where to keep config data other than config file (Windows App)?

    - by user144842
    My Windows application GUI is accepting some required application configuration fields from the user. I need to store them of course, but I wanna hide these fields from the user. I cannot use database to store these configs. I want to avoid using app.config either. (No app.config encryption) Any suggestions, Where and in which format i should store fields. (Field example is: Accepting database User credentials, Task Schedule info etc.)

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  • Maximum number of cookies allowed

    - by Nouveau
    As far as Google searches tell me, the maximum allowed number of cookies depends very much on the browser, however I cannot find any recent data as to how much cookies are allowed on modern browsers. I need to store a somewhat large number of user preferences in cookies (for not-yet-registered users), so what would be the best way of doing that? (Also, those cookies would be accessed both via javascript client-side and php server-side)

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  • Writing A Good C# Equals Method

    - by ChloeRadshaw
    Does anyone have a template for writing a decent equals method - I remember in Effective Java there was problems around handling equals when dealing with subclasses. I dont have the book with me and I cannot remember if it was practical advice - So how do you write a solid robust equals method implementation?

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  • The date is always ignored

    - by TheLearner
    I cannot understand why the date is never set in the title - it's always ignored and if I swap around the date and the title, then the title is ignored! -(id)initWithCoordinate:(CLLocationCoordinate2D)c title:(NSString *)t { [super init]; coordinate = c; NSDate *today = [NSDate date]; [self setTitle:(@"%@%@", [today description], t)]; //[today release]; return self; }

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  • error on oncreate() method

    - by user1644081
    I am begginer in Android App and using Java as when I add this code : GCMRegistrar.checkDevice(this); GCMRegistrar.checkManifest(this); final String regId = GCMRegistrar.getRegistrationId(this); if (regId.equals("")) { GCMRegistrar.register(this, SENDER_ID); } else { Log.v(TAG, "Already registered"); } I had error on : SENDER_ID Log TAG the error "cannot be resolved to available "

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  • Wordpress page navigation

    - by Ian
    I used to use a plugin that would give me the option to remove a page from the top navigation but still appear in the side navigation but for the life of me I cannot remember the name of it and I have too many pages for the all to be displayed in the top nav. Can anyone help me? Thanks

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  • [Erlang] Changing working directory

    - by Zbigniew
    Hello, I have Erlang installed on my WinXP machine. Becouse so, I use it by a "werl.exe". The problem is, that I would like to change a default folder that werl starts in. I cannot find option that would let me do that, although I know there must be something like that. Could anybody help ?

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  • mysql_affected_rows() always returns 1 even though no row was updated.

    - by happyhardik
    What I am trying to do is: (programmatically) Update status where id is something, if no rows where updated, give error: we cannot find the record with id something, otherwise give message success. Here I am using mysql_affected_rows() to know if a row was updated or not, but it always return 1, so the user gets a success message, even though there was no row updated. Can anyone tell me what could it be?

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  • implict type cast in generic method

    - by bitbonk
    why do I get a compiler error in the following code stating: Cannot implicty convert type SpecialNode to T even though T must derive from NodeBase as I defined in the where clause and even though SpecialNode actually derived from NodeBase? public static T GetNode<T>() where T : NodeBase { if (typeof(T) == typeof(SpecialNode)) { return ThisStaticClass.MySpecialNode; // <-- compiler error } if (typeof(T) == typeof(OtherSpecialNode)) { return ThisStaticClass.MyOtherSpecialNode; // <-- compiler error } ... return default(T); }

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  • CComModule::Unlock();

    - by Tony
    I've been trying to determine what this function does, however I cannot seem to find it anywhere under the MSDN documentation of the CComModule class. Could anyone tell me what it is used for?

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