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  • Need help with NSString that returns (null)

    - by Guy Dor
    Hi, I have a problem with my string that returns (null) Here's the MainViewController: NSString *leftWebViewUrl; MainViewController *mainViewController; @property (nonatomic, retain) NSString *leftWebViewUrl; @property (nonatomic, retain) MainViewController *mainViewController; leftWebViewUrl = [NSString stringWithString:leftWebView.request.URL.absoluteString]; leftSharingViewController.leftWebViewUrl = leftWebViewUrl; Here's the leftSharingViewController (just the NSString declaration) NSString *leftWebViewUrl; @property (nonatomic, retain) NSString *leftWebViewUrl; From some reason I get (null) Thanks

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  • Set asisde space for ADT when reading integers from file

    - by That Guy
    I'm using C to make maze solver. The program should be able read a maze from a text file containing a grid of 1 and 0 representing walls and paths. This file could be of any size as the user selects which maze to use. The program should then show the maze being solved. As the maze is being solved it should show where has been walked and how many steps have been taken. I have made an ADT called Cell containing a bool for wall or path and an integer for steps taken. I now need to populate a 2D array of Cells which means I need to set aside enough space to store a Cell for every integer in the maze file. What would be the best way to do this?

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  • Additional Pssnapins

    - by Guy Thomas
    I can see the 6 or so native PSSnapins, thanks to get-PSSnapin I have added the useful QAD snapins, thanks to add-PSSnapin My question is could you recommend any other useful third-party Snapins for PowerShell?

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  • fullCalendar and dialog problem

    - by Guy Asinovsky
    Hi, i've download the fullCalendar package and included the jquery.js file and the calender works. but, when i try to open jquery dialog, it wont open ! i've download the jquery package from jquery.com and included the js from there insted... now the dialog works but not the calendaer ! what am i doing wrong ?? all the jquery files are at the same location. thanks for the help

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  • Showing custom model validation exceptions in the Django admin site.

    - by Guy Bowden
    I have a booking model that needs to check if the item being booked out is available. I would like to have the logic behind figuring out if the item is available centralised so that no matter where I save the instance this code validates that it can be saved. At the moment I have this code in a custom save function of my model class: def save(self): if self.is_available(): # my custom check availability function super(MyObj, self).save() else: # this is the bit I'm stuck with.. raise forms.ValidationError('Item already booked for those dates') This works fine - the error is raised if the item is unavailable, and my item is not saved. I can capture the exception from my front end form code, but what about the Django admin site? How can I get my exception to be displayed like any other validation error in the admin site?

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  • How to declare ASP classic constants to a data type?

    - by Guy
    In asp classic and vbscript, you can declare a Const with a hexidecial value, and a date type value: Const C_LIGHTCYAN = &hCCFFEE Const C_STARTDATE = #1 JAN 2000# But how can I declare currency, single or doubles data types? Const C_LONG = 1024 '# I want this to be a LONG, not an INT! I'm sure I've seen something like Const C_LNG = L12345 or some other prefix/suffix combination for longs or doubles but can't find the source now

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  • Converting OCaml to F#: F# equivelent of Pervasives at_exit

    - by Guy Coder
    I am converting the OCaml Format module to F# and tracked a problem back to a use of the OCaml Pervasives at_exit. val at_exit : (unit -> unit) -> unit Register the given function to be called at program termination time. The functions registered with at_exit will be called when the program executes exit, or terminates, either normally or because of an uncaught exception. The functions are called in "last in, first out" order: the function most recently added with at_exit is called first. In the process of conversion I commented out the line as the compiler did not flag it as being needed and I was not expecting an event in the code. I checked the FSharp.PowerPack.Compatibility.PervasivesModule for at_exit using VS Object Browser and found none. I did find how to run code "at_exit"? and How do I write an exit handler for an F# application? The OCaml line is at_exit print_flush with print_flush signature: val print_flush : (unit -> unit) Also in looking at the use of it during a debug session of the OCaml code, it looks like at_exit is called both at the end of initialization and at the end of each use of a call to the module. Any suggestions, hints on how to do this. This will be my first event in F#. EDIT Here is some of what I have learned about the Format module that should shed some light on the problem. The Format module is a library of functions for basic pretty printer commands of simple OCaml values such as int, bool, string. The format module has commands like print_string, but also some commands to say put the next line in a bounded box, think new set of left and right margins. So one could write: print_string "Hello" or open_box 0; print_string "<<"; open_box 0; print_string "p \/ q ==> r"; close_box(); print_string ">>"; close_box() The commands such as open_box and print_string are handled by a loop that interprets the commands and then decides wither to print on the current line or advance to the next line. The commands are held in a queue and there is a state record to hold mutable values such as left and right margin. The queue and state needs to be primed, which from debugging the test cases against working OCaml code appears to be done at the end of initialization of the module but before the first call is made to any function in the Format module. The queue and state is cleaned up and primed again for the next set of commands by the use of mechanisms for at_exit that recognize that the last matching frame for the initial call to the format modules has been removed thus triggering the call to at_exit which pushes out any remaining command in the queue and re-initializes the queue and state. So the sequencing of the calls to print_flush is critical and appears to be at more than what the OCaml documentation states.

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  • How to get an embedded function to run multiple times

    - by Guy Montag
    The question I have is how to I get multiple instances of a function to run. Here is my function below - A simple fade function. Problem I'm having is that when it is called a second time it abandons the first call. So if a user clicks on a button it will display a message which fades. If the user clicks on another button the previous fading message just stops at the current opacity level. Try it here - www.arcmarks.com ( please do not repost this domain name) click on SignUp and than quickly click on SignIn with out typing anything. You will see the previous message simply halts. ? What is the stopping mechanism? Where did the previous function go? The function function newEffects(element, direction, max_time ) { newEffects.arrayHold = []; newEffects.arrayHold[element.id] = 0; function next() { newEffects.arrayHold[element.id] += 10; if ( direction === 'up' ) { element.style.opacity = newEffects.arrayHold[element.id] / max_time; } else if ( direction === 'down' ) { element.style.opacity = ( max_time - newEffects.arrayHold[element.id] ) / max_time; } if ( newEffects.arrayHold[element.id] <= max_time ) { setTimeout( next, 10 ); } } next(); return true; }; The Call newEffects(this.element, 'down', 4000 );

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  • [ruby] Check if file is a valid image

    - by some guy
    Hi all, I'm using rmagick to manipulate image files. I use the ImageList.new on each file to get started. When I apply this method to an invalid image file I get the below error which interrupts the execution of the script: RMagick.rb:1635:in `read': Improper image header (Magick::ImageMagickError) Therefore I would like to be able to check whether a file is a valid image file before using this method. Any ideas? Thanks.

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  • How to avoid links to map.root getting shortened?

    - by Guy C
    I have a Reports controller and various reports: http://localhost/reports/main/this_month http://localhost/reports/main/last_month http://localhost/reports/main/this_year I wanted http://localhost to default to http://localhost/reports/main/this_month. That is easy enough using map.root in my routes.rb. However when I do this any links to http://localhost/reports/main/this_month are now shortened to just http://localhost. I want the links to stay full

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  • Use applescript to write iCal data to file

    - by Guy
    I am trying to get applescript to read todays ical events and write them to a file. The code is as follows: set out to "" tell application "iCal" set todaysDate to current date set time of todaysDate to 0 set tomorrowsDate to todaysDate + (1 * days) repeat with c in (every calendar) set theEvents to (every event of c whose start date = todaysDate and start date < tomorrowsDate) repeat with current_event in theEvents set out to out & summary of current_event & " " end repeat end repeat end tell set the_file to (((path to documents folder) as string) & "DesktopImage:ical.txt") try open for access the_file with write permission set eof of the_file to 0 write out to the_file close access the_file on error try close access the_file end try end try return out The ical items are getting returned correctly and the file ical.txt is created correctly in the folder Documents/DesktopImage, but the file is blank. Even if I substitute write out to the_file with write "Test string" to the_file it still comes up blank any ideas? Ty

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  • How can I tell if a SQL Server database is being backed up

    - by Guy
    Is there a way to programmatically determine if a SQL Server backup is currently being performd on a particular database? We have automated database backup scripts for both data and log files, where the databases are backed up nightly and log files are backed up every 15 minutes, 24 hours a day. However, we think that the log file backup job is failing if it runs the same time as the full backup is being run. What I'd like to do is to make a change to my transaction log script to not run a transaction log backup while the full backup is being run. If there a DMV or a system table that I can query and work this out?

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  • Python: Regex outputs 12_34 - I need 1234

    - by Guy F-W
    So I have input coming in like: 12_34 5_6_8_2 4___3 1234 and the output I need from it is: 1234, 5682, 43, 1234 I'm currently working with r'[0-9]+[0-9_]*'.replace('_','') which (as far as I can tell) successfully rejects any input which is not a combination of numeric digits and under-scores, where the underscore cannot be the first character. However, replacing the _ with the empty string causes 12_34 to come out as 12 and 34. Is there a better method than 'replace' for this? Or could I adapt my regex to deal with this problem?

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