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• Ternary Operator or If Expression?

  - by kunjaan

  When is a good design decision to use the Ternary Operator over if then else clause? Are there any efficiency hit? Do they get compiled to the same code? Do you think one is more readable than the other in some cases?

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• How to Take whitespace in Input in C

  - by itsaboutcode

  I wanted to take character array from console and it also include white spaces, the only method i know in C is scanf, but it miss stop taking input once it hit with white space. What i should do? Here is what i am doing. char address[100]; scanf("%s", address);

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• Publishing web service on IIS 7 gives 500.19 - Internal Server Error

  - by Nick

  Hello. I have created a folder and published my webservice to this folder. I then created an application (in IIS 7) and pointed it at this folder location. When I try and hit the ASMX file from a browser on the local machine I get the following error: HTTP Error 500.19 - Internal Server Error The requested page cannot be accessed because the related configuration data for the page is invalid. Can someone tell me why?

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• iphone - debugging on device crashes immediately

  - by phil swenson

  When I try to debug my app on the iphone device, the splash screen shows and then the app crashes immediately. If I run the app in the simulator or on the device (not from XCode) it runs fine. I tried putting a breakpoint in the main method and it doesn't seem to hit it. There are no logs generated. ideas? suggestions?

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• how to get my program to enter windows username password?

  - by blood

  i have been working on a program that will enter usernames and passwords if someone plugs in a Usb, but i don't know how to enter a windows log in password. So the idea is to have my program running so it can find if the usb is plugged in if so it will use keybd_event to enter the password and to hit enter. how would i get my program to run so i can do this?

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• How can i use DomainUpDown as spinner?

  - by testkhan

  I want to control domainUpDown as spinner to control value from 0 to 800 so that if i hit its upper arrow it adds 1 into current value...

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• Is using Clone() a bad programming practice if doing on heavily loaded objects?

  - by user301292

  We have a class that is more like a template (with lot of properties and overridden methods). I need to make many objects of that class type. Can I use clone() to create objects with specific settings if I have one object created? I know I need to override the Clone method. Is the performance going to take a hit by using Clone()?

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• Rule of thumb for capitalizing the letters in a programming language

  - by William

  I was wondering if anyone knew why some programming languages that I see most frequently spelled in all caps (like an acronym), are also commonly written in lower case. FORTRAN, LISP, and COBOL come to mind but I'm sure there are many more. Perhaps there isn't any reason for this, but I'm curious to know if any of these changes are due to standards or decisions by their respective communities. Or are people just getting too lazy to hit the caps lock key? (I know I am)

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• What is the preferred method of refreshing a combo box when the data changes?

  - by Craig Johnston

  What is the preferred method of refreshing a combo box when the data changes? If a form is open and the combo box data is already loaded, how do you refresh the contents of the combo box without the form having to be closed and reloaded? Do you have to do something on the Click event on the combo box? This would seem to be a potential slow down for the app if there is a hit to the database every time someone clicks on a combo box.

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• how can I show progressbar in WPF for DB actions?

  - by RAJ K

  I want to show my application user a progressbar for following actions: when they provide login information in WPF and hit submit/OK whatever. when they request any information from DB (select command execution). Thank You

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• Image.createImage problem in J2ME

  - by Michael

  Hi All, I tried this on J2ME try { Image immutableThumb = Image.createImage( temp, 0, temp.length); } catch (Exception ex) { System.out.println(ex); } I hit this error: java.lang.IllegalArgumentException: How do I solve this?

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• Autocompletion based on filenames in a directory

  - by Nils Riedemann

  Hi there, I want to have a function in my zsh for faster accessing my todo-files. It should look inside the folder ~/tasks where i put my todo-lists and stuff. Now i want to type task p and when I hit tab, it should use the files in that directory for autocompletition. Can anyone point me some direction? Or share some snippet to work with? Thanks

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• How to get my program to log the user into Windows?

  - by blood

  i have been working on a program that will enter usernames and passwords if someone plugs in a Usb, but i don't know how to enter a windows log in password. So the idea is to have my program running so it can find if the usb is plugged in if so it will use keybd_event to enter the password and to hit enter. how would i get my program to run so i can do this?

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• How do I make Visual Studio stop compiling after 1 (or n) errors?

  - by Jon

  For example, a missing semi-colon in C++ can result in hundreds of errors. Is there a way to stop compiling when the first error is hit?

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• Hadoop: Processing large serialized objects

  - by restrictedinfinity

  I am working on development of an application to process (and merge) several large java serialized objects (size of order GBs) using Hadoop framework. Hadoop stores distributes blocks of a file on different hosts. But as deserialization will require the all the blocks to be present on single host, its gonna hit the performance drastically. How can I deal this situation where different blocks have to cant be individually processed, unlike text files ?

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• Does the order of columns in a query matter?

  - by James Simpson

  When selecting columns from a MySQL table, is performance affected by the order that you select the columns as compared to their order in the table (not considering indexes that may cover the columns)? For example, you have a table with rows uid, name, bday, and you have the following query. SELECT uid, name, bday FROM table Does MySQL see the following query any differently and thus cause any sort of performance hit? SELECT uid, bday, name FROM table

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• Tips to speed up debugging in Codegear

  - by Seth

  Are there any tips to speed up debugging in Codegear? For example, when I set breakpoints it can sometimes take a long time for the IDE to be active once the breakpoint is reached and likewise when I hit F8(stepover).

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• Datagrid CurrentRowIndex returns -1??

  - by runxc1 Bret Ferrier

  This seems quite odd. I have a Datagrid (.net 3.5 cf) that I bind to either a List or Inventory[]. When I click on a row and then hit a button to perform an action when I bind to a List CurrentRowIndex is -1. When I bind to Inventory[] and perform the same action CurrentRowIndex comes back with the selected row why is that?? grdBatch.DataSource = InventoryItems.ToArray(); vs grdBatch.DataSource = InventoryItems;

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• Should a user authorize each time i need an access token?

  - by user259349

  In the facebook authentication guide, i am suppose to: Get the user to authorize my application, by redirecting them to authorize uri. Get my access token from facebook by hitting the /outh/accesstoken uri. Lets just say, that for whatever reason, this token is no longer valid. Do i need to perform step #1, or can i hit the /outh/accesstoken uri again?

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• Simplest way do get started debugging PHP (Drupal)

  - by Olav

  What is the simplest way to get started with debugging and hit a specific line in a Drupal install? Generally? With Eclipse? (how difficult?) On Windows, knowing and having access to Visual Studio (How Difficult with Visual Studio?) (No Pay: Free or trial)

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• How many max constants can i define in PHP ?

  - by WarDoGG

  My site is having around 100+ constants defined and this can potentially reach 200. I'm using define() for defining constant. Will this cause a performance hit ? How many max constants can i define in PHP ?

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• Letting users try your web app before sign-up: sessions or temp db?

  - by Mat

  I've seen a few instances now where web applications are letting try them out without you having to sign-up (though to save you need to of course). example: try at http://minutedock.com/ I'm wondering about doing this for my own web app and the fundamental question is whether to store their info into sessions or into a temp user table? The temp user table would allow logging and potentially be less of a hit on the server, correct? Is there a best practice here?

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• Visual Studio keeps running the old build

  - by Mike Pike

  Hello. I have a simple Silverlight program that displays a bunch of images. I modified it do display more images, but it when I hit "run without debugging" is keeps running the old build with fewer images. When I copy the code into a new project and run it, it works fine for the first time, but then each subsequent change is not displayed. What could be the problem? I'm using Visual Web Developer 2008 Express.

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• deploying to Windows Mobile 6 Professional Emulator - SLOW !

  - by no9

  Is there a way to speed up deployment to emulator. Whenever i hit debug it takes almost a minute for the deploy to complete. thanx !

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• Configure autocomplete in intellij with hamcrest and mockito dsl

  - by sgargan

  I'm wondering if its possible to configure Intellij's smart insert to suggest hamcrest and mockito dsl idioms when in test classes. Really I'm looking for something like eclipse's 'static favorites', so that when I hit ctrl + space or ctrl +shift +space the idioms are present. In general is it possible to configure autocomplete/smart insert or the suggestions balloon for that matter. I've looked through the settings without much luck but could easily have overlooked something.

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