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  • Delphi: Which are the downsides of having unused units listed in the uses clause?

    - by user193655
    I use cnPack Uses cleaner, but in general which are the downsides of having useless units? I know some of them: 1) of course if the unit is never used across the full project there will be useless resource consuption 2) the code insight will give useless results 3) the code insight will be slower But imagine a simple case: I have a project with 2 forms, I use StrUtils in one of them but I declared StrUtils in both of them... Is there any downside in temrs of memory consumption in this case or not?

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  • Best .Net/C# book for an interview

    - by DrunkenBeard
    Hi, I'm having an interview for an internship in the coming days and would like to know if there are any books that are particulary suited for preparing interviews. The interview is not particulary hard, just some questions about .Net and C# plus an algorithm to code. I tried C# in a Nutshell but it goes in too much detail for what I want to achieve. I'm more looking for a good yet small book that explains the important concepts of the .Net framework and C#, I already know the details, just want formal explanations so I'm confident when answering. Thanks :)

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  • What are the possible tags of "global" tag in Magento "config.xml" file?

    - by Knowledge Craving
    Can someone professional experienced Magento developer tell me how to accomplish the following in Magento? I want to know what are the possible tags that can fit in the "global" tag of the "config.xml" page of every module's etc folder? I have tried searching for this answer at many places in Internet but in vain. Please provide the full details along with it, because I want at least the users accessing this website find it useful enough, instead of scratching their heads. I really want a detailed explanation, because every newbie like me gets totally confused at this point. From what I know till now, is that in this page, you can set routers, rewrites, cron jobs, admin html, front-end html and many more. But without any strong concepts. So please I want that strong fundamental concept with a detailed explanation about it.

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  • How can Domain driven design be combined with aspect oriented programming?

    - by anthares
    I'm doing research and one point I want to cover is "What is the relationship between Domain-driven Design and Aspect oriented programming?" I know that a main principle in DDD is separation of concerns and I understand that. What I'm not really certain is, whether aspects in AOP acts like "sub domains" in our domain in DDD. Are these two concepts, basically the same thing. I mean, If I develop an application following AOP and DDD, at the end of the day will it be true that "a sub domain" == "an aspect". I will also appreciate any other opinions what is the common between AOP and DDD.

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  • REST services - exposing non-data "actions"

    - by ctacke
    I understand how to use REST for doing general entity interactions - using urls names to map to entities and the HTTP verbs to map to actions on those entities. But what is the generally accepted way of looking at "actions" more like RPC? For example, let's say I want to send a command for the device to reset? There's no real "entity" here or do I do something like POST to http://mydevice/device/reset?

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  • Database advantages? Access, MySQL, msSQL, or any others?

    - by JimZ
    Dear all Stackoverflowers, I just started to learn programming and now I'm putting this question online based on a quote: no question is silly My work needs to develop a order system based on web, which wants a database system. Since using Excel for years as a general office user, I naturally turn this to Access. However, most people say Access is very limited comparing to MySQL or MSSQL, or any other more professional database system. But after developing some functions for my company's order system, I really find Access can fulfill my request. And I also tried MSSQL to develop, which I found it not quite convenient to use. I have searched in stackoverflow and find no general answer about my doubt. Now I am sincerely hoping some experienced and professional developers could clear my doubts. Now I'm listing some Access advantages, which I don't think other database system have. I hope you could help me also find these advantages in others. 1. Access is portable, I can just copy a xxx.accdb file to my company and continue with development. 2. Access is easy to generate helpful table, for example, it will automatically generate a field that can automatically count, could be used as primary key value. 3. it is more compatable with Excel, to display and filter data. 4. importantly, it nerely needs no environment to setup, just needs MS Office to be installed. ............others However, I also find some points that MSSQL is advantaged: 1. security reasons 2. easy to backup, ( just use BACKUP..... sql statement to do it) 3. can edit stored procedure to save some functions to database ...............others specifically, I wish some friends could tell me how to make other database portable? since I usually work both at home and in office. It's a headache to move MSSQL work to my office, since the version of MSSQL is not the same. Thank you all and best regards, :)

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  • Seeking assistance with Escaping Data for MySQL queries

    - by JM4
    Please don't send me a link to php.net referencing mysql_real_escape_string as the only response. I have read through the page and while I understand the general concepts, I am having some trouble based on how my INSERT statement is currently built. Today, I am using the following: $sql = "INSERT INTO tablename VALUES ('', '$_SESSION['Member1FirstName'], '$_SESSION['Member1LastName'], '$_SESSION['Member1ID'], '$_SESSION['Member2FirstName'], '$_SESSION['Member2LastName'], '$_SESSION['Member2ID'] .... and the list goes on for 20+ members with some other values entered. It seems most people in the examples already have all their data stored in an array. On my site, I accept form inputs, action="" is set to self, php validation takes place and if validation passes, data is stored into SESSION variables on page 2 then redirected to the next page in the process (page 3) (approximately 8-10 pages in the whole process). thanks!

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  • Possible ways of representing data in memory (.net)

    - by This is it
    Hi What are the possible ways of representing data in memory in .Net (or in general)? It would be great if data could be sorted and looked up by key (or multiple keys). We are thinking to use collections, arrays, list of collections/arrays. One object would be in several collections (one sorted asc, other desc, etc.). Maybe this is not a good idea, and we would like to hear some other possible solutions. Thank you

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  • jQuery selector to target any CSS name (of multiple present) starting with a prefix?

    - by John K
    I'm considering one selection statement that would target one of many css class names in a single class attribute value based on a string prefix. For example, I want any detail- prefixed class names to get targeted from the following sample links. <a href="eg.html" class="detail-1 pinkify another"> <a href="eg.html" class="something detail-55 minded"> <a href="eg.html" class="swing narrow detail-Z"> <a href="eg.html" class="swing narrow detail-Z detail-88 detail-A"> It's reminiscent of how [class|="detail"] prefix selector works on a scalar attribute value, and also of .hasClass(className), but my question needs both concepts applied simultaneously. Note: The detail- prefix won't necessarily be the first class name of the bunch.

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  • Calendar formatting issues

    - by Philipp
    Hi folks! We're searching for information on how to format instances of java.util.Calendar and more general information and coding hints regarding transition from using java.util.Date to java.util.Calendar. best, phil

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  • "Multi-threading" w/ NSTimers in an iPhone app

    - by MrDatabase
    Say I have two NSTimers in my iPhone app: timer1 and timer2. timer1 calls function1 30 times per second and timer2 calls function2 30 times per second. Assume these two functions are reading and updating the same integer variables. Are there any "multi-threading" issues here? If not how does iPhone OS handle the execution of the two functions (in general)?

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  • jquery cousin element

    - by salmane
    I am trying to locate the closest element that contains a class....this is in an effort to find the "cousin" of the current element that i have.. the following did not work : $('myelement').closest ('*:has(.class1)').find('class_cousin') I am using the * in closest since i am not sure what type element is the one i am looking for nor do I know if it has any classes or ID ( i am trying to keep it general for a plugin) any idea how I could do it? thank you

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  • Is Spring hard compared to Ruby on Rails?

    - by johnny
    If I have no to little experience in either of them, but know enough Java and Ruby to be comfortable, is one framework harder to learn than the other? Is one easier to use for the beginner on these? I know it is hard to answer. Just looking for general thoughts on it.

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  • Portable C++ IDE

    - by Click Ok
    I want a portable C++ IDE for general development, and too to develop basic Windows GUI applications. In my research, I've found this (with latest version date): CodeLite IDE (2010-04-02) Code::Blocks (2008-02-28) Bloodshed Dev-C++ (2005-02-22) NetBeans (2009-12-10) Ultimate++ (2010-03-16) Qt Creator (2010-02-01) But I don't know if some these IDE's supports Windows GUI development (or Cross Platform GUI development) or if can be Portable (NetBeans can be portable).

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  • Validating entered user data

    - by msfanboy
    Hello, this is a general question but I do a desktop application. Should I check for example the firstname exceeding 50 chars or is this a matter of taste? Or should I check for 50 chars because the user could flood my database with 10000000 chars ?

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  • C++ TerminateProcess function

    - by jemper
    I've been searching examples for the Win32 API C++ function TerminateProcess() but couldn't find any. I'm not that familiar with the Win32 API in general and so I wanted to ask if someone here who is better in it than me could show me an example for, Retrieving a process handle by its PID required to terminate it and then call TerminateProcess with it. If you aren't familiar with C++ a C# equivalent would help too.

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  • Is strict mode more performant?

    - by sje397
    Does executing javascript within a browser in 'strict mode' make it more performant, in general? Do any of the major browsers do additional optimisation or use any other techniques that will improve performance in strict mode? Edit: Since none of the major engines actually implement strict mode, I'll rephrase slightly: Is strict mode intended, amongst its other goals, to allow browsers to introduce additional optimisations or other performance enhancements?

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  • How does one programmatically download files from the web?

    - by ytrp
    How are files downloaded from servers in programming languages like C? I understand higher level languages have magic functions like "download_file_from_url()" but they don't help me understand what is actually going on. I'm a little familiar with sockets but network programming in general is still a black box to me. Thanks for any help.

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  • iPhone 3rd Party Controls?

    - by Driss Zouak
    I was wondering if there are any 3rd party controls for use with the iPhone that are available, even better if usable from Interface Builder. From what I can gather, the answer is no. I come from a Microsoft .NET background where of course there are tons of controls available from 3rd parties. I'm curious if this is a general Mac development ecosystem fact, i.e. no 3rd party controls for sale, or just an iPhone one, or if I've just missed finding them.

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  • Beginning Programmer Interested in Android - Should I Start with Java?

    - by Hudey
    I'm a beginner in programming. My experience so far is only in Actionscript 2 and 3. So I have a basic understanding of declaring variables, loops, arrays, if/then, do/while... I'm wanting to move to developing for Android phones so I'm wondering what suggestions people have for where to go next. Should I jump right to Android? Start with a 'beginning Java' approach? Or should I go some other route to beef up my knowledge of OOP concepts before launching into Android? I have my Dev environment set up and completed the Hello Android tutorial and I'm just wondering if I am going to be in over my head quickly?

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  • Drupal 7: Rename files on upload (via filefield)

    - by Eugene
    Looking for a way to rename files that are uploaded by users through a filefield. For example, rename user profile photos using uniqid. I found a good solution for D6 here: http://www.wesjones.net/home/2011/03/drupal-6-how-to-change-filename-on-upload but can't find anything for D7. Another option is to use File (Field) Paths, but (1) the module causes warnings on my setup and (2) seems to be a bit of an overkill to install a general module for a very specific purpose.

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