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• generic identifier

  - by Werner

  Hi, as I probably do not describe the problem in the right terms, I was not able to get an answer with google. Please excuse! In the following code, I would like to replace 'hardcoded' identifier COMMENT with the variable editedField. How to do that? var editedField:String = event.dataField; if (model.multipleProcessingData[i][editedInformationProductNO].COMMENT != null{ ... }

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• Ruby - How to remove a setter on an object

  - by Markus Orrelly

  Given a class like this: class B class << self attr_accessor :var end end Suppose I can't modify the original source code of class B. How might I go about removing the setter on the class variable var? I've tried using something like B.send("unset_method", "var="), but that doesn't work (nor does remove_method, or overwriting that method with a var= method that doesn't do anything). Any ideas?

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• Convert 64bit Binary to Long equivalent

  - by washtik

  How can we convert the following 64 bit binary into the long equivalent; 01111101 10100011 01001111 11111111 11111111 11111111 11111111 11000000 equals 7D A3 4F FF FF FF FF C0 HEX equals 9053167636875050944 << this is the value we want in a C# variable

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• Django 1.1 equivalent of the 'in' operator

  - by DavidG

  I need to display a piece of HTML only if a variable value appears in a list. I know that Django 1.2 has an 'in' operator. But I am working on a Google App Engine app. Is there a workaround I can use?

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• Mimic C preprocessor with Python/Ruby?

  - by prosseek

  I need to mimic the preprocessor feature of C with Python. If I want to run the debug release, I use as follows with C #ifdef DEBUG printf(...) #endif I just use -DDEBUG or similar to trigger it on or off. What method can I use for Python/Ruby? I mean, what should I do to control the behavior of python/ruby scripts in such a way that I can change a variable that affects all the script files in a project?

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• Weird gcc error stray/missing terminating " character in C

  - by DreamCodeR

  I get the following errors: error: missing terminating " character and error: stray `\' in program In this line of C code: system("sqlite3 -html /home/user/.rtcom-eventlogger/el.db \"SELECT service_id, event_type_id,free_text, remote_uid FROM Events WHERE remote_uid=\'%d\' ORDER BY start_time DESC;\" > lol.html", nr); "nr" is a integer variable. I have gone over this so many times but are totally stuck of finding a solution. EDIT: The errors is the ouput while compiling with gcc if I didn't make that clear.

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• Compile error while adding items to nested dictionary

  - by anshu

  I am trying to created nested dictionary variable like the below, But I get compile error stating that it needs "}" at line where I am adding items (line #2) to my nested dictionary. What Am I missing here? Thanks. Dim myNestedDictionary As Dictionary(Of String, Dictionary(Of String, Integer)) = New Dictionary(Of String, Dictionary(Of String, Integer))() myNestedDictionary.Add("A", New Dictionary("A", 4)())

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• Date format error in vb.net ?

  - by ahmed

  I get this error when I run the application Incorrect syntax near 12, on debugging I found that this error is caused due to the # along with the date. Dim backdate as datetime backdate = DateTime.Now.AddDays(-1) on binding the data to the grid to filter the backdate records this error is caused Incorrect syntax near 12. myqry = " select SRNO,SUBJECT,ID where datesend =" backdate Now i am trying to extract only the date or shall I divide the date into day , month and year with DATEPART and take into a variable or convert the date or what should i do , Please help ???

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• Updating position of JSlider Swing

  - by GLRockwell

  My apologies for posting tons of questions as of late. I'm trying to get a JSlider to update its position based on a constantly updating variable. The setValue(n) method doesn't seem to work. Is there any alternative? We're using this as a time marker for a music player.

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• Concatenate String

  - by João Madureira Pires

  Hi there. I have the following javascript function: <script type="text/javascript"> function quickCardRegister_OnCompleteSave() { publishContent('This is a description',#{imagePath},'http://www.lala.com'); } </script> The imagePath variable is populated with value: http://localhost/img/30_w130px.gif I'm having the following script error: missing ) after argument list publishContent('This is a description',http://localhost/img/30_w130px.gif,'http://www.lala.com'); How can i surround http://localhost/img/30_w130px.gif with quotes? Thanks

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• Get number of times in loop over Hash object

  - by Matt Huggins

  I have an object of type Hash that I want to loop over via hash.each do |key, value|. I would like to get the number of times I've been through the loop starting at 1. Is there a method similar to each that provides this (while still providing the hash key/value data), or do I need to create another counter variable to increment within the loop?

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• Is there an easy way to get the hostname in Symfony

  - by greg0ire

  I have been searching for an easy way to get the hostname of the machine where Symfony runs in Symfony (so that my app adapts when it is used on a host with a different ServerName), but I couldn't find one. I created a variable in app.yml and I fetch it, but I still wonder if there is no easier way to do this. How are you doing this? I'm using Symfony 1.2 and 1.4 on different projects.

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• How to build a conditional assignment in bash?

  - by Neuquino

  I'm looking a way to build conditional assignments in bash: In Java it looks like this: int variable= (condition) ? 1 : 0; Thanks in advance

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• Linq DateTime expressions wont compare if only one is nullable

  - by tigermain

  I have been getting the following exception: The binary operator GreaterThanOrEqual is not defined for the types 'System.Nullable`1[System.DateTime]' and 'System.DateTime'. I am getting the left hand expression from a class property which is a nullable datetime variable and my right hand side is using Expression.Constant(new Nullable<DateTime>(DateTime.Now)) However I still get the above exception despite explicitly setting the right hand expression to a nullable type

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• Java - Runtime.getRuntime().exec() what's going on?

  - by kunkanwan

  Hi, I have problem with Runtime.exec() in Java My code: String lol = "/home/pc/example.txt"; String[] b = {"touch", lol}; try { Runtime.getRuntime().exec(b); } catch(Exception ex) { doSomething(ex); } It's working good but when I trying changle variable "lol" files doesn't create in hard disk for instance: String lol = x.getPath(); where getPath() returns String What should I do ? Thanks for your reply :)

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• Read http body and put it into variables.

  - by Khou

  how do you create a class to read the html body and phase it into a variable? Example the page http://domain.com/page1.aspx display the following plaintext within the html body content item1=xyz&item2=abc&item3=jkl how do you read content of the html body and assign them to a variables in this case variable1=xyz (value taken from item1=) variable2=abc (value taken from item2=) variable3=jkl (value taken from item3=)?

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• Struts2, problem with 2 variables in one address.

  - by tzim

  Hi. I'm using struts2, now in my jsp file i've got 2 variables: ${server_address} ${pageContext.request.contextPath} Now i want to connect it in my tag: <s:form action="%{server_address}%{pageContext.request.contextPath}/actionName.action"> But generated output looks like that: <form method="post" action="http://10.0.0.5:8088/actionName.action" name="actionName" id="actionName"> There is no contextPath... How can i connect this two variable ?

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• mainframe in Joomla

  - by Casebash

  The hello world tutorial for Joomla states: $mainframe is a global variable in Joomla that has lots of useful methods attached to it. How do I find out what these methods are? I tried searching through their documentation, but I couldn't find any clues.

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• Generate list of all possible permutations of a string

  - by Unkwntech

  How would I go about generating a list of all possible permutations of a string between x and y characters in length, containing a variable list of characters. Any language would work but it should be portable.

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• Mulitple lines in make

  - by Navi

  I am trying to store a multiline string in a variable in make var=$(shell cat <<End-of-message \ -------------------------------------\ This is line 1 of the message.\ This is line 2 of the message.\ This is line 3 of the message.\ This is line 4 of the message.\ This is the last line of the message.\ -------------------------------------\ End-of-message) printit: @echo ${var} This doesn't work, so I am wondering if this is possible at all. I need to preserve the newlines here and shell is converting them in spaces. Any suggestions?

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• Throwing errors while changing Ui design

  - by subbu

  I have a Datagrid , 2 textBoxes and 4 buttons whenever I change positions or add a new controls , It gives errors form my grid variable saying it is not in current context . I am creating a window Application and using WinForms

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• $stdin compatibility with std::istream using swig, C++, and Ruby

  - by Kenny Peng

  I have a function in C++ that takes in an std::istream as the input: class Foo { Foo(std::istream &); } Using SWIG, I've bound it to Ruby, but Ruby's $stdin variable is fundamentally different from anything like the stream classes in C++, so I'm not sure how to either 1) expose the C++ class to Ruby in a way that I can use $stdin, or 2) convert $stdin into something the C++ class can understand. Anyone have experience with binding iostreams in C++ to Ruby? Thanks.

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• How to change the value of value in BASH ??

  - by debugger

  Hello All, Let's say i have the Following, Vegetable=Potato ( Kind of vegetable that i have ) Potato=3 ( quantity available ) If i wanna know how many vegetables i have (from a script where i have access only to variable Vegetable), i do the following: Quantity=${!Vegetable} But let's say i take one Potato then i want to update the quantity, i should be able to do the following: ${Vegetable}=$(expr ${!Vegetable} - 1) It does not work !! Any clues to realize this Thanks

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• MATLAB expression column indexing

  - by Yassin

  I have an expression that gives a matrix and I want to access an element, without creating a temporary variable, something like this cov(M)(1,1). How can I do it? Thanks!

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• Is there a way to make C macros keyword agnostic?

  - by Dragos Toader

  Is there a way to concatenate keywords in a macro and get C to behave in a more dynamic fashion as in: #define macro(fun,ction,var,iable) function(variable) I know this kind of thing exists in other languages.

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