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• Static variable for communication among like-typed objects

  - by Dan Ray

  I have a method that asynchronously downloads images. If the images are related to an array of objects (a common use-case in the app I'm building), I want to cache them. The idea is, I pass in an index number (based on the indexPath.row of the table I'm making by way through), and I stash the image in a static NSMutableArray, keyed on the row of…

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• Problems with GData Request Token

  - by Dan Delgado

  We have successfully used GData libraries to access a user's Google Docs. But we encountered problems when many users log in to our site and authorize our web app at the same time or successively. Here's what happens: First user successful logs in, authorizes our web app via OAuth and is able to add rubric (or google spreadsheet). Second…

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• NHibernate - Stream large result sets?

  - by Dan Black

  Hi, I have to read in a large record set, process it, then write it out to a flat file. The large result set comes from a Stored Proc in SQL 2000. I currently have: var results = session.CreateSQLQuery("exec usp_SalesExtract").List(); I would like to be able to read the result set row by row, to reduce the memory foot print Thanks

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• Rx IObservable buffering to smooth out bursts of events

  - by Dan

  I have an Observable sequence that produces events in rapid bursts (ie: five events one right after another, then a long delay, then another quick burst of events, etc.). I want to smooth out these bursts by inserting a short delay between events. Imagine the following diagram as an example: Raw: …

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• VS 2010 Layer Diagram Validation Error is Showing A Dependency That Doesn't Even Exist (AV0001)

  - by Dan

  I'm getting the following validation error on my layer diagram Error 65 AV0001 : Invalid Dependency : Weld.Interface.Core(Assembly) -- Weld.Interface(Namespace) Layers: Application Framework Core, Application Framework | Dependencies: Namespace Reference D:\Projects\Windows…

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• NSMutableArray can't be added to

  - by Dan Ray

  I've had this sort of problem before, and it didn't get a satisfactory answer. I have a viewcontroller with a property called "counties" that is an NSMutableArray. I'm going to drill down a navigation screen to a view that is about selecting the counties for a geographical search. So…

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• Any way to cache WAV files in IE?

  - by Dan Howard

  I'm seeing an issue with our web application. We have a few wave files which we can play (like ding.wav) and we have attempted to pre-load wave files but using Fiddler we're seeing that the WAV files are never cached like (js and css and image files). We always see an HTTP 200 instead…

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• PHP - Cannot use Heredoc within a class method?

  - by Dan

  I'm writing the code for a controller method and I need to use it to send an email. I'm trying to use heredoc syntax to fill in the email body, however, the closing tag doesn't seem to be recognized. $this->email = new Email(); $this->email->from = 'Automated Email';…

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• How to write specs with MSpec for code that changes Thread.CurrentPrincipal?

  - by Dan Jensen

  I've been converting some old specs to MSpec (were using NUnit/SpecUnit). The specs are for a view model, and the view model in question does some custom security checking. We have a helper method in our specs which will setup fake security credentials for the…

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• File transfer eating alot of CPU

  - by Dan C.

  I'm trying to transfer a file over a IHttpHandler, the code is pretty simple. However when i start a single transfer it uses about 20% of the CPU. If i were to scale this to 20 simultaneous transfers the CPU is very high. Is there a better way I can be doing…

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• Scaffolding Web Services in Grails

  - by Dan

  I need to implement a web app, but instead of using relational database I need to use different SOAP Web Services as a back-end. An important part of application only calls web services and displays the result. Since Web Services are clearly defined in form…

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• utf8 and encoding

  - by Dan

  I have a sting in unicode is "hao123--??????", while in utf8 in C++ string is "hao123???????????>", but I should write it to a file in this format "hao123\uFF0D\uFF0D\u6211\u7684\u4E0A\u7F51\u4E3B\u9875", how can I do it. I know little about this…

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• Compiling .NET component that uses a non specific required version of a 3rd Party Vendor component

  - by Dan

  If someone were to develop a .NET component that relied on non specific versions of a vendor DLL - let's say it worked with My3rdPartyComponent.dll which is a .NET assembly, but it didn't matter which version. Some instances of classes found in this…

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• Change text fields background colour if negative number using Jquery/CSS

  - by Dan C

  Hi, I have the following text input on a budget calculator form which displays the final balance... <tr><td align="right"><b>Balance: &pound;</b></td><td align="left"><input type="text" class="res"…

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• What does the symbol :=: mean

  - by Dan Maguire

  I've found the symbol :=: in some Clarion code and I can't seem to figure out exactly what it does. The code was written by a previous developer many years ago, so I can't ask him. I also have not been able to find any results for "colon…

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• Python halts while iteratively processing my 1GB csv file

  - by Dan

  I have two files: metadata.csv: contains an ID, followed by vendor name, a filename, etc hashes.csv: contains an ID, followed by a hash The ID is essentially a foreign key of sorts, relating file metadata to its hash. I wrote this…

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• Why does my Excel add-in only half work?

  - by Dan Crowther

  I've created an Excel add-in using Visual Studio 2008. It has a ribbon, a bunch of panes and code that adds sheets and ranges and gets information scraped from a web page. When I run it on my dev PC it works perfectly. I used the…

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• How to read a string one letter at a time in python

  - by dan

  I need to convert a string inputed by a user into morse code. The way our professor wants us to do this is to read from a morseCode.txt file, seperate the letters from the morseCode into two lists, then convert each letter to…

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• WPF DockPanel doesn't respect the "Filled" control's desired size

  - by Dan Puzey

  I have the following Xaml (simplified for brevity, but will repro the problem in Xamlpad or Kaxaml): <DockPanel Width="400"> <TextBlock DockPanel.Dock="Left" TextWrapping="Wrap"> Lorem ipsum dolor sit…

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• Problem with final branch in a parallel activity

  - by Dan Revell

  This might seem like a silly thing to say, the final branch in a parallel activity so I'll clarify. It's a parallel activity with three branches each containing a simple create task, on task changed and complete task. The…

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• jQuery/Javascript to replace broken images

  - by Dan Lord

  I have a web page that includes a bunch of images. Sometimes the image isn't available so a broken image is displayed in the clients browser. How do I use jQuery to get the set of images, filter it to broken images then…

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• What is the best way to merge mp3 files?

  - by Dan Williams

  I've got many, many mp3 files that I would like to merge into a single file. I've used the command line method copy /b 1.mp3+2.mp3 3.mp3 but it's a pain when there's a lot of them and their namings are inconsistent. …

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• cgi.FieldStorage always empty - never returns POSTed form Data

  - by Dan Carlson

  This problem is probably embarrassingly simple. I'm trying to give python a spin. I thought a good way to start doing that would be to create a simple cgi script to process some form data and do some magic. My python…

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• How can I embed a youtube video using variable widths/heights for a dynamic width web page?

  - by Dan Gayle

  I want to set a youtube video to 100% width so that it scales appropriately in a dynamic width column on a web page I am designing. The problem is that the height doesn't behave like the height of an image. Instead…

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• What statistics can be maintained for a set of numerical data without iterating?

  - by Dan Tao

  Update Just for future reference, I'm going to list all of the statistics that I'm aware of that can be maintained in a rolling collection, recalculated as an O(1) operation on every addition/removal (this is really…

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