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  • What Are Collections Implemented As In VB6?

    - by Tom Tresansky
    So a collection in VB6 keeps track of a key for each object, and you can look up the object by its key. Does that mean collections are implemented as some sort of hashtable under the hood? I realize you can have multiple items with the same key in a collection, hence the SOME SORT. Anybody know what type data structure a VB6 collection is supposed to represent?

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  • Is it a bad programming practice to have "Public" members inside an "Internal" class?

    - by Amby
    I mean, won;t it be more specific and appropriate if i "only" keep "protected","internal" and "private" members (field,method,property,event) in a class which is declared as "internal" ? I have seen this practice ( having "public" members in an "internal" class) in various code so just wanted to know is it a bad practice or does it has some benefit or advantage. [Only concerned about C#] Thanks for your interest.

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  • class_eval in ruby?

    - by fayer
    i dont understand class_eval in ruby. http://pastebin.com/RMnvTCyz what does the % mean? what does class_eval do? and where is (val) coming from? thanks

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  • What does the line '!/bin/sh -e' do?

    - by Camran
    In the beginning of a file on my server (linux), which is located in the /etc/init.d/ folder I have this line: !/bin/sh -e What does it mean, because every time I execute the rest of the script it works fine except for an error which shows: !/bin/sh not found Any ideas?

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  • How to get the ID of the last insert.

    - by James Jeffery
    I have an application and around 20 accounts are created per minute (on average). I need to implement a new feature which requires the ID of the last insert. I am using PDO. The question is, lets say 5 users create accounts at exactly the same time. Will it return the ID from the database for that users profile that was just created, or will it return the last insert? If you get what I mean.

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  • Signs that a SQL statement is dangerous

    - by Matt
    Hi, I want to develop a function in PHP that checks how dangerous a SQL statement is. When i say dangerous i mean, certain symbols, characters or strings that are used to get data from a database that the user shouldnt see. For example: SELECT * FROM users WHERE userId = '1' can be injected in several ways. Although i clean the params, i also want to monitor how safe the query is to run. Thanks in advance

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  • mysql for dummies

    - by kalixxx
    I just started using mysql and I just can see myself woking with strings! I mean the compiler cant catch errors like this... and its just a mess! is there a wrapper or some kind of class i can add that does something as simple as making a function that adds a table and asks for args? I'm sure there is a tool like that but i cant find it or know its name. plz help.

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  • Symfony: blank page after executing include_component()

    - by user248959
    Hi, i have this line: <?php include_component('sfGuardRegister', 'register') ?> when it's executed i get a blank page. I have debugged include_component() and the flow processing is not entering inside of it, i mean: function include_component($moduleName, $componentName, $vars = array()) { die("enter"); echo get_component($moduleName, $componentName, $vars); } Any idea?

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  • a string doesn't exist in the current context

    - by Strider007
    the following is a part of my code. string lsStatus; lsStatus = ((Tv10DBLookup)(Sender)).EditValue.ToString(); while im debuging the code, im getting the following: "lsStatus is not in the context" ! Knowing that (Tv10DBLookup)(Sender)).EditValue is returning the value "Closed" what does this mean ?

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  • How to implement callback functions inside classes (PHP)

    - by sombe
    I need to use a class callback method on an array inside another method (the callback function belongs to the class). class Database { public function escape_string_for_db($string){ return mysql_real_escape_string($string); } public function escape_all_array($array){ return array_filter($array,"$this->escape_string_for_db"); } } Is this the right way to go about that? (I mean, in terms of the second parameter passed to array_filter)

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  • How can I programmatically change my windows domain password?

    - by Deestan
    In other words, how to change my password without going through the "CTRL-ALT-DEL - Change Password" interface. By programmatically I mean via a command-line tool, C# via a .NET library, COM-invocation via Python, ... whatever doesn't involve any manual steps, really. The "NET USER" command is ineligible, as it requires me to run with domain administrator privileges.

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  • best way to store list of websites on iphone app

    - by Jonathan
    By best I mean most efficient. So don't go on about subjectiveness. I have a list of websites and I want to store the list on the iphone locally, there must be an URL, title and a small image (like 32x32 max image size). I don't think I should be using CoreData for this. Should I be using a plist?

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  • C# property ending with ?

    - by MicMit
    What does that mean ? public bool? Verbose { get; set; } When applied to string? , there is an error Error 11 The type 'string' must be a non-nullable value type in order to use it as parameter 'T' in the generic type or method 'System.Nullable'

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  • accessor and mutator?

    - by fayer
    when using doctrine i stumble upon these 2 words: accessor and mutator. are these only used in doctrine or are they specific for php? and what do they mean? thanks

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  • autoreferencing this class to use in another for c++

    - by atomsfat
    in java we can do this: public class A{ public static void main(String...str){ B b = new B(); b.doSomething(this); //How I do this in c++ ? the this self reference } } public class B{ public void doSomething(A a){ //Importat stuff happen here } } How can I do the same but in c++, I mean the self reference of A to use the method in B ?

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  • C# Dispose() -clarification

    - by nettguy
    When i call object.Dispose(); Will CLR immediately destroy the object from memory or mark the object for removal in it's next cycle?. We are calling GC.SuppressFinalize() immediately after Dispose(),Does it mean ,"Don't collect the object again for dispose,because it is already submitted to displose". Actually which generation is responsible for destruction ,i guess generation 2.

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