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• Creating Simple desktop database application

  - by KoolKabin

  Hi guys, I am here to write a small database application that will be running in desktop (offline mode). I am using MSAccess 2007 as my database file and trying to write code in vb.net. I used to write the code vb6 an usually had global variables for storing database connection and executing every query from that. I am trying to upgrade myself from vb6 to vb.net. do i need to read some more simple starter books also?

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• php return elements from file content

  - by mdskinner

  Pretty simple i'm sure, but.. I've got a file that is guaranteed to have only an <h1some text</h1 and a <psome more text</p in it. How would i go about returning these to elements as separate variables?

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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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• PHP string parsing

  - by tmatthews

  I am trying to parse a list of operating system instances with their unique identifiers. I am looking for a solution to parse a text string, and pass the values into two variables. The string to be parsed is as followed: "Ubuntu 9.10" {40f2324d-a6b2-44e4-90c3-0c5fa82c987d}

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• Is there something similar to jEval for C# / .net ?

  - by Calvin

  I'm looking for a language that will parse mathematical expressions for me pretty easily, but also be able to call functions and reference variables as needed. Jeval looks to be what I'm looking for, but unfortunately I'm working in C#. Is there a .Net based equivalent to jeval?

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• Thread safety with heap-allocated memory

  - by incrediman

  I was reading this: http://en.wikipedia.org/wiki/Thread_safety Is the following function thread-safe? void foo(int y){ int * x = new int[50]; /*...do some stuff with the allocated memory...*/ delete x; } In the article it says that to be thread-safe you can only use variables from the stack. Really? Why? Wouldn't subsequent calls of the above function allocate memory elsewhere?

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• Is prefixing Windows Forms control names with their type OK?

  - by name

  I have seen many responses that say that prefixing variables with their type is bad, since C# is statically typed and we have Intellisense, but I find that prefixing the names of the controls is useful because I don't need to remember the name of the controls or switch to the designer frequently. For example: btnLoad // Button tbFilePath // TextBox tvFileSystem // TreeView Is this considered bad? If it is, what's the alternative?

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• Convert hexadecimal notation into latitudinal hours and minutes

  - by Dave Jarvis

  Given: 0x12E7 represents 48°39' 0x3026 represents 123°26' What is the most efficient way to convert the representation of those latitudes into two variables: hours minutes Where the first example would be: hours = 48 minutes = 39 And the second example: hours = 123 minutes = 26 Thank you!

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• is this class thread safe?

  - by flash

  consider this class,with no instance variables and only methods which are non-synchronous can we infer from this info that this class in Thread-safe? public class test{ public void test1{ // do something } public void test2{ // do something } public void test3{ // do something } }

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• What are the basic tips and trics forASP.Net/Web programming and common mistakes a programmer makes

  - by Indigo Praveen

  Hi All, What should a web programmer keep in his mind while creating a web application ? What should he keep in his mind i.e. using Session variables, Global.asax file etc. Please share your experiences .

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• How do I get intellisense to pop up?

  - by TheLearner

  How do I get intellisense to pop up while I am coding? I know it pops up when I start typing a known type e.g.: if I type NSS it will finish it for me NSString. How do I get it to give me a bunch of options like in Visual Studio e.g.: if I type NS I want to see what my options are like NSString, NSInteger etc? And if I have not typed anything I still want a bunch of options like all the instance variables etc.

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• Is it good practice to separate code into blocks?

  - by LM

  If I have a method that does multiple, related things, is it good practice to stick each "thing" that the method does into a seperate block? Ex. { int var //Code } { int var //More Code } It would help reduce the number of local variables, and make the code more readable, but I'm not sure if it's a good idea.

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• adding php time

  - by redcoder

  i have a value store in variables as 11:30. I need to add a minutes to this variable..Example, adding 15 minutes to make it 11:45 can i do that ? i tried to use time() but it will give current time... but i want to add time to the specified variable

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• GridBagConstraints weightx and weighty values

  - by xdevel2000

  In many books weightx and weighty values are expressed in different ways: some says 0.0 to 1.0 other says 0 to 100 other say until 1000 I'm a lot confused. In the API these variables are double types so I think the first is correct but what does it meaning a value of 0.4 or 0.7? are percentage values, point values? relative of what?

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• Add windows commands in python

  - by geocheats2

  Can anyone tell me how to add the shutdown.exe to python and how . i also want to set and variables like shutdown.exe -f -s -t 60

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• Best way to save to nsuserdefaults for custom class?

  - by cannyboy

  If I have a custom class Person which has three variables (which are propertized and synthesized): NSString* theName; float* theHeight; int theAge; Person instances are stored in an NSArray 'Group'. There is only one Group. What is the best way of string and loading the Group in NSUserDefaults? (bearing in mind that float and int are not legal for NSUserDefaults)

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• Double-checked locking in .net

  - by erikkallen

  I came across this article discussing why the double-check locking paradigm is broken in java. Is the paradigm valid for .net (in particular, C#), if variables are declared volatile?

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• problem with IN clause in SQL

  - by user179056

  Hello, We have observed that there seems to be a maximum number of ids/variables which one can pass in the IN clause of SQL as comma seperated values. To avoid this we are storing all the ids in a table and doing a SELECT within the IN clause. This however means extra database operations to store and retrieve ids. Is there any other way to use IN without SELECT? regards Sameer

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• IBOutlets are always nil

  - by Jonas

  Hi, In IB I have subclassed the File Owner and the subclass loads my .nib. The subclass itself doesn't need access to the IBOutlets so they're instance variables in another class, which I added as a subclass of NSObject in the .nib. Then I connected the interface elements to that object. But somehow, in the class that "owns" the IBOutlets, they show up as nil. What am I doing wrong here?

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• Convert numbers to enumeration of strings in bash

  - by User1

  Using bash, I have a list of strings that I want to use to replace an int. Here's an example: day1=Monday day2=Tuesday day3=Wednesday day4=Thursday day5=Friday day6=Saturday day7=Sunday If I have an int, $dow, to represent the day of the week, how do I print the actual string? I tried this: echo ${day`echo $dow`} but get error of "bad substitution". How do I make this work? Note: I can change the $day variables to a list or something.

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• Passing data between asp.net pages

  - by user204588

  Hello, I'm wondering the opinion of what is the best way to pass a lot of values between pages. I was thinking of either saving the values to a database, using context.Items[], or Session[]. I'm not sure about what is the best method. I'm passing probably around 40 variables.

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• "No Suggestions" in NetBeans

  - by Flexx

  For a few days now I'm using NetBeans 6.8 for doing PHP work. But even if a class-file is included and the methods are public and there's phpDoc used, NetBeans everytime shows "No Suggestions" in the window. E.g. I type $user-> and press CTRL+Space, I do expect all the methods and variables but there aren't shown any. ideas?

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• Understanding PHP's way of reading if statements

  - by Masi

  How does PHP read if statements? I have the following if statements in this order if ( $number_of_figures_in_email < 6) { -- cut: gives false } if($number_of_emails > 0) { -- cut: gives false } if ( $number_of_emails == 0) { -- cut: gives true } The code behaves randomly. It sometimes goes to the third if clause and gives me a success, while sometimes to the one of the first two if clauses when the input variables are constant. This suggests me that I cannot code only with if statements.

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• Testing of coding and naming conventions of C/C++ code

  - by shakov

  I'm looking for a script/tool that can be customized to check and enforce coding/naming conventions on a C/C++ code. It should check for example: Code lines are wrapped at some length. Private variables have prefix _ Code is indented properly. All functions are documented.

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• How can I split a list with multiple delimiters?

  - by Rob

  Basically, I want to enter text into a text area, and then use them. For example variable1:variable2@variable3 variable1:variable2@variable3 variable1:variable2@variable3 I know I could use explode to make each line into an array, and then use a foreach loop to use each line separately, but how would I separate the three variables to use?

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