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• Equality with Double.NaN

  - by chris

  I have the following code... if (Price_Foreign != Double.NaN) { output.Append(spacer); output.Append(String.Format("{0,-10:C} USD",Price_Foreign)); } Which outputs: NaN USD What gives? I'm using Double.NaN to indicate that the value doesn't exist, and shouldn't be output.

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• Does the .NET Framework 3.5 have an HsbToRgb converter or do I need to roll my own?

  - by DanM

  I did a search for an HsbToRgb converter in the docs but didn't find anything containing "hsb" or "hsl", so I'm guessing it just doesn't exist. Just to make sure, though, are there any classes that support this conversion?

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• Using RESTful Rails, How to Do an Insert and Create in One Action

  - by Dex

  I have a link on a website that says "add object". When I do this, an AJAX call is made and I want to do the following things: 1) if the container in the session does not exist, create one, else use existing 2) add the object to the container I'm new to RESTful design and am wondering how to best accomplish this in Rails. Step #1 in particular

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• Service Layer which can switch between Web Service Layer and Data Access Layer

  - by Blake Blackwell

  I am building an application that will function as a client-server application, and also as a disconnected client application. I will be using WPF (browser app for client-server application). When interacting with the server's database, I will need to connect using WCF web services. When connecting with the localized database, I will need to connect using the local db's data access layer. What methods/patterns exist for this sort of architecture?

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• What are the frameworks for creating HTML5 <canvas> applications?

  - by Motti

  Yesterday I ran across the jcotton framework for creating canvas applications and I was wondering what the state of the art is. Do other such frameworks exist? If so what are their [dis]advantages?

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• How to generate a unified diff in Ruby?

  - by jstayton

  After reading through this question about Ruby diff packages, I'm still not sure how to generate a unified diff from two text files. I'm not having trouble reading each file into a string (IO.read()), but I'm not finding any package that can generate a unified diff. Does one exist? Is doing a system call to diff even an option I should consider? (I'm thinking no.) Any help is appreciated! Thanks.

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• PHP: variable-length argument list by reference?

  - by GetFree

  Is it possible to create a PHP function that takes a variable number of parameters all of them by reference? It doesn't help me a function that receives by reference an array of values nor a function that takes its arguments wrapped in an object because I'm working on function composition and argument binding. Don't think about call-time pass-by-reference either. That thing shouldn't even exist.

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• writing an extension for Safari 5

  - by Caylem

  As of Monday 7th June 2010 Safari (v5) supports Extensions. Some already exist such as the Gmail Checker & the upcoming Coda Notes by Panic. So my question... Where would one begin if one intends to develop an application for Safari 5? Thanks in advance for any feedback!

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• Having trouble using jQuery to set meta tag values

  - by Zhami

  I'm trying to set meta tags using jQuery (please don't reply that this doesn't make sense since search engines blah-blah-blah... I am loading invoking 3rd party Javascript functions that examine these vales, such as Tweetmeme and Facebook). If I use: $('meta[name=some-name]').attr('content', 'some value'); it does work to set the value of an existing meta tag, but does not create a meta tag if such a named one does not exist. If you have insight or experience with this, please reply...

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• Dijkstra's algorithm to find all the shortest paths possible

  - by Darksody

  Hello, I'm working on Dijkstra's algorithm,and i really need to find all the possible shortest paths,not just one.I'm using an adjacency matrix and i applied Dijkstra's algorithm,and i can find the shortest path.But i need to find all the paths with that minimum cost,i mean all the possible solutions,if they exist.If anyone have an ideea and can help me,i would really appreciate it.A link would be fine too. Thank you.

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• WPF application template not available in Visual Studio 2010

  - by Stuart Helwig

  I have just installed Visual Studio 2010. when I attempt to create a new project in c#, there is no option for a WPF application. There is for Visual Basic. The WPFApplicaton.zip flie does exist in C:\Program Files\Microsoft Visual Studio 10.0\Common7\IDE\ProjectTemplates\CSharp\Windows\1033 What could be wrong here?

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• DOM + need to remove element from XML bt VB script

  - by yael

  I have the following VB script , I want to remove the "NET ID" element from name list but after running the VB script the "NET ID" element still exist in the XML doc? Something wrong in the VB? Yael Set objXMLDoc = CreateObject("Microsoft.XMLDOM") objXMLDoc.async = False objXMLDoc.load("\dir\d.xml") Set objRoot = objXMLDoc.documentElement Set objExNode = objRoot.removeChild(objRoot.childNodes.item(0)) objRoot.appendChild(objExNode) the XML file:

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• Which third party tools/library are available for NoSQL databases?

  - by Horcrux7

  I know that NoSQL databases are very new. I am also new in this point. But exist already tools/libraries to make the life easer like for SQL databases? I think on tools for managing, maintaining, viewing or reporting of the data. There can also be libraries for easer working with the database or an abstract database layer to change the database later. I would prefer Java libraries but also other are interesting.

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• Wordpress Taxonomy title output

  - by Blackbird

  I'm trying to output the title of a taxonomy page when viewing it... So like, if i was on a 'tag' page i would go: <?php if (is_tag()) {?> <h1><?php single_cat_title(); ?></h1> <?php } ?> But how would i achieve the same thing for if the user is viewing a specific taxonomy page? is_taxonomy() doesn't exist so i'm suck! :/

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• ASP.NET Where can I write to without modifying permissions?

  - by LeeW

  Where can I write to without modifying site permissions? I need to store a value on the server that will remain when all sessions have closed and can be re-read when a new session is started. I need to make sure that no site permissions need to be changed so the location can be written to by anonymous users and any authenticated user. Does such a place exist? Thanks Lee

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• C# 4.0: System.Diagnostics.Process

  - by xscape

  Hi I would like to know if there's an existing implementation of checking if application exist in your local machine before I start to open it. System.Diagnostics.Process.Start("path")

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• Django: How to iterate over formsets and access cleaned data?

  - by Mark

  What if I want to do something with my formset other than immediately saving it? How can I do this? for form in vehicles_formset.forms: listing.id = None listing.vehicle_year = form.cleaned_data['year'] listing.vehicle_make = form.cleaned_data['make'] listing.vehicle_model = form.cleaned_data['model'] listing.vin = form.cleaned_data['vin'] listing.vehicle_runs = form.cleaned_data['runs'] listing.vehicle_convertible = form.cleaned_data['convertible'] listing.vehicle_modified = form.cleaned_data['modified'] listing.save() (Thus creating multiple listings) Apparently cleaned_data does not exist. There's a bunch of stuff in the data dict like form-0-year but it's pretty useless to me like that.

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• find string in DataGridView

  - by LCountee

  I'm using a foreach loop to populate each row in a DataGridView with a string. I need to search the DataGridView to make sure that I don't add a string that is already there. What is the best way to do this? Here is my code so far: foreach (String file in openFileDialog.FileNames) { // todo: make sure file string does not already exist in DataGridView dataGridView1.Rows.Add(); dataGridView1.Rows[i].Cells[1].Value = file; i++; }

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• Licensing Module for PHP based project

  - by ASV

  Hi All, I am looking for a 3rd party licensing module that can be incorporated into my PHP project. I can always implement a custom one but client needs to understand if there are any 3rd party options readily available... does any such 3rd party module exist at all for PHP... such are availabe for .Net but couldn't find any for PHP... Thanks in advance Regards, ASV

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• Convert HTML DOM into a multidimensional array

  - by dclowd9901

  Where keys are represented by element type and values are represented by #foo and .bar (spaced and ready for explode()). Is it possible, or does something exist for it? I know that this question might incite some wrath, and I'm hoping nobody links to that post about parsing HTML, but I'm hoping it's not impossible. Thanks for the help. Addendum: Ideally, PHP would be used, since it's the only scripting language I know.

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• What is the correct response for web service?

  - by Eric

  One of my web services returns the list of ids of the the projects a person is owner of. That is, when I GET http://example.com/wsListProjects?user=eric I get back xml with the list of projects. However, when I specify user=xxx, who doesn't exist, I currently return a 404 response? Is this the correct response to return? Thanks.

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• Regular expression for bounce email message

  - by Ryan

  I am looking for a regular expression (or other method if there is such a thing) for detecting bounce email messages. So far I have been going through our unattended mail box and adding strings that I find into a regex. I figured someone would have something that is already complete rather than me re-inventing the wheel. Here is an example of what I have so far: /reason: 550|permanent fatal errors|Error 550|Action: Failed|Mailbox does not exist|Delivery to the following recipients failed/i

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• Powershell .CopyHere if it already exists work around

  - by Bruce227

  Hi, I run the following to unzip and want to over write the current files if they exist but the microsoft solution found here(http://msdn.microsoft.com/en-us/library/ms723207%28VS.85%29.aspx) doesn't seem to work. I haven't found anything that says it works so is there a work around to select the 'yes to all' option? $zipPackage = (new-object -com shell.application).NameSpace($zipfilename) $destinationFolder = (new-object -com shell.application).NameSpace($destination) $destinationFolder.CopyHere($zipPackage.Items(),16) Thanks

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• saving / mirroring / crawling web pages that use javascript to generate content

  - by Nick Nolan

  I want to download web pages that use javascript to output the data. Wget can do everything else, but run javascript. Even something like:firefox -remote "saveURL(www.mozilla.org, myfile.html)" would be great (unfortunately that kind of command does not exist).

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• Anyone familiar with CurvyCorners JS?

  - by Kyle Sevenoaks

  I am trying to implement the CurvyCorners script onto the site: euroworker.no. It reports back that certain CSS values don't exist on the page, how I can I turn off this alert? Found the alert code: if (j === null) curvyCorners.alert("No object with ID " + arg + " exists yet.\nCall curvyCorners(settings, obj) when it is created.");

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