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• How can I evaluate a deferred Linq statement when debugging?

  - by DanO

  I'm debugging in VS2010, and I want to inspect a string value but all I can get the debugger to show me (through watches, hovering, locals, etc.) is: "System.Linq.Enumerable+<TakeIterator>d__3a`1[System.Char]" I don't care if there are side effects from premature evaluation or whatever, I just want to see what the expression would evaluate to if I evaluate it right now at the current breakpoint. How is this done? Also can I change my code in such a way that it evaluates earlier? Not that I care when I'm not debugging... but just wondering. In case it is relevant... (I doubt it.) I'm stuffing a new entity object before saving it to the database... some fields are assigned with LINQ statements, I'm not sure when they get evaluated under the covers of EF. The DB update fails with 'string or binary data would be truncated... So I'm trying to find the too-long field.

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• CSS Float left question

  - by Minghui Yu

  <div id="slideshow-prevnext" class="slideshow-prevnext"> <a id="prev" class="left" href="#"><span class="invisible">Prev</span></a> <a id="next" class="right" href="#"><span class="invisible">Next</span></a> <a href="#" class="dot">&nbsp;</a> <a href="#" class="dot">&nbsp;</a> <a href="#" class="dot">&nbsp;</a> </div> I want the three <a href="#" class="dot">&nbsp;</a> appear on the left of and the two ("Prev" and "Next") on the right. How can I do it? I tried float:left but does not work. Edit: CSS is too long to post. Development site is here at : http://site2.ewart.library.ubc.ca/

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• How do I play a video through .net in windows 7

  - by Mykroft

  I had setup an app to play a video using the library suggested here this worked great for me for a long time until my machine was upgraded. In windows 7 I get the following exception that I'd never seen under XP: `System.BadImageFormatException: is not a valid Win32 application. (Exception from HRESULT: 0x800700C1) at MainApp.Controls.MediaControl.StopVideo() at System.Windows.Forms.Form.WmClose(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)` I've installed the June 2010 DirectX SDK and I'm still getting this error. Is there a different library I should be using or some setting that needs to be changed?

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• django threadedcomments

  - by Patrick

  Hi folks, I would like to setup a comment systems on my site, using django threadedcomments, and I follow all the steps in the Tutorial, however, I get the following error: No module named newforms.util I am not sure what causing this issue, here is my configuration: #settings.py INSTALLED_APPS = ( 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'myproject.myapp', 'threadedcomments', ) #urls.py from django.conf import settings from django.conf.urls.defaults import * from django.contrib import admin admin.autodiscover() urlpatterns = patterns('', (r'^admin/', include(admin.site.urls)), (r'^threadedcomments/', include('threadedcomments.urls')), ) Please let me know if there is another better choice for commenting, as long as the comment system is flexible and able to do lot of customization, as well as threadedcomment, of coz, integrating with Rating, I am happy to use the other one. Thanks guys.

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• Is there a "dual user check-in" source control system?

  - by Zubair

  Are there any source control systems that require another user to validate the source code "before" it can be checked-in? I want to know as this is one technique to make sure that code quality is high. Update: There has been talk of "Branches" in the answers, and while I feel branches have there place I think that branchs are something different as when a developer's code is ready to go into the main branch it "should" be checked. Most often though I see that when this happens a lead developer or whoever is responsible for the merge into the main branch/stream just puts the code into the main branch as long as it "compiles" and does no more checks than that. I want the idea of two people putting their names to the code at an early stage so that it introduces some responsibility, and also because the code is cheaper to fix early on and is also fresh in the developers mind.

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• Making bash script to check connectivity and change connection if necessary. Help me improve it?

  - by cypherpunks

  My connection is flaky, however I have a backup one. I made some bash script to check for connectivity and change connection if the present one is dead. Please help me improve them. The scripts almost works, except for not waiting long enough to receive an IP (it cycles to next step in the until loop too quick). Here goes: #!/bin/bash # Invoke this script with paths to your connection specific scripts, for example # ./gotnet.sh ./connection.sh ./connection2.sh until [ -z "$1" ] # Try different connections until we are online... do if eval "ping -c 1 google.com" then echo "we are online!" && break else $1 # Runs (next) connection-script. echo fi shift done echo # Extra line feed. exit 0 And here is an example of the slave scripts: #!/bin/bash ifconfig wlan0 down ifconfig wlan0 up iwconfig wlan0 key 1234567890 iwconfig wlan0 essid example sleep 1 dhclient -1 -nw wlan0 sleep 3 exit 0

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• The meaning of tracking in git

  - by user273158

  In an article that has been cited in StackOverflow a few times (e.g. 1) , the author discusses the asymmetry between git push and git pull, and mentions the following: Update: Thanks to David Ongaro, who points out below that since git 1.7.4.2, the recommended value for the push.default option is upstream rather than tracking, although tracking can still be used as a deprecated synonym. The commit message that describes that change is nice, since it suggests that there is an effort underway to deprecate the term “track” in the context of setting this association with the upstream branch in a remote repository. (The totally different meanings of “track” in git branch --track and “remote-tracking branches” has long irritated me when trying to introduce git to people.) What is exactly the difference that he is referring to with: The notion of "tracking" in git branch --track The notion of "tracking" in remote-tracking branches in the last sentence?

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• Fork to shell script and terminate original process with Haskell

  - by Neth

  I am currently writing a Haskell program that does some initialization work and then calls ncmpcpp. What I am trying to do is start ncmpcpp and terminate the Haskell program, so that only ncmpcpp is left (optionally, the program can keep running in the background, as long as it's unintrusive) However, even though I am able to start ncmpcpp, I cannot interact with it. I see its output, but input appears to be impossible. What I am currently doing is: import System.Process (createProcess, proc) ... spawnCurses :: [String] -> IO () spawnCurses params = do _ <- createProcess (proc "ncmpcpp" params) return () What am I doing wrong/What should I do differently?

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• In query in Entity Frame work

  - by Syed Salman Raza Zaidi

  I am working on Entity frame work, i have created a method which is returning List of my Table, I am retrieving data on base of grpID(which is foreign key, so i can have multiple records) I have saved these grpID's in an array so I want to run IN command on Entity framework so that i can get records in single List, How can i apply In command,my code is below public List<tblResource> GetResources(long[] grpid) { try { return dataContext.tblResource.Where(c => c.GroupId == grpid && c.IsActive == true).ToList();//This code is not working as i am having array of groupIds } catch (Exception ex) { return ex; } }

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• scrolling a readonly cell in NSTableview?

  - by John Velman

  I have a table that the user should not be able to edit directly (although user actions may cause changes). One column may contain a string too long for any reasonable size cell, so to see everything there, the user needs to scroll the cell (using arrow keys, for example). If I make either the column or cell not editible, I loose the ability to scroll the cell. If I make it editable, of course, I loose the ability to keep the user from changeing it. (I'm using NSArray controller and a couple of NSObject controllers to get from the model to the table view using bindings. Binding compliance via @property(copy) and @synthesize. Updating the model with setXXXX:xxx). Thanks, John Velman

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• Is a PHP-only "cache engine" ever worth it?

  - by adsads

  I wrote a rather small skeleton for my web apps and thought that I would also add a small cache for it. It is rather simple: If the current page exists as a file in the cache and the file isn't too old, read it out and exit instead of rebuilding the page If the current page isn't cached/outdated recalc the page and save it However, the bad thing about it is: My performance tests with a page that receives 40 relatively long posts via a MySQL query said that with using the cache, it took even longer to handle a single request (1000 tests each) How can that happen? Should I just remove the complete raw-PHP cache and relieve on the availability of some PHP cache like memcached or so?

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• SVN - ignoring files already in repository

  - by Alex

  I have a configuration file in my project which needs to be in the repository (so new developers get it when they checkout the project). Each developer might change some values in the file locally - these changes should not be committed and I don't want them showing in the synchronization menu (I'm using eclipse and subversive if it matters). Note that I can't just set the svn:ignore property since it only works on files that aren't under version control - but I do want to keep a base version of the file in the repository. How can I avoid the file showing in synchronization without deleting it from repository? EDIT: A better description - what I actually need is to be able to set a "read-only" property on the config file, so it can't be changed in the repository as long as the property is on. Do you know anything like this? Thanks

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• How to use intent between tabs in java/Android?

  - by Praveen Chandrasekaran

  I would need to know how to handle the intent between tabs. For example, I have a tab activity with two tabs. First on content is a text view. another one is a map view. When i click that text view it redirects to the tab2. it can be easily achieved by setCurrentTab(1) or setCurrentTabByTag("tab2") methods. But i want to pass lat and long values to that Map Activity to drop pin. What is the better way to use intents or getter/setter in java? What do you prefer? if your answer is "Intents". How?

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• Hosting an NServiceBus subscriber in the same application as the producer.

  - by Jack Ryan

  Is it possible to use NServiceBus to publish and consume messages in the same application, specifically a web application? In the future we will almost certainly need to maintain a separate long running service to process messages generated by this application, and this is why we are hoping to use NServiceBus from the start, but right now it would be nice to just start up the consumer and the publisher when the web application starts. This will make testing and deployment far easier for us. I presume I will need to reference the NServiceBus.Host.exe and start up the process in the global.asax, but need help on what exactly I need to call to do this.

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• Ruby/python Script to convert html text to plain text in csv file

  - by Miau

  Hi all: So i have a large(ish) file in a csv format, that contains a column that has html and i need to transform that to plain text (ie readable by people ,ie with no script tags) I dont have much experience with ruby, but it seems like the perfect language to do this The File should still be in a cv format after the parsing ( ie, other columns should nto be disturbed) Helpz? Fair enough, I thought there might be a library that does that as long as the html was valid. The file looks something liek this "xxxx-15454ss", "xome name", "<div class=""myClass""><strong>The Vintage Junior </strong>offers the same specs as the Vintage Series but only in 3/4 Size ideal for Kids. the 57 Model is great value for a good quality guitar. For more info go to <a href=""www.somehting.com"">something</a> </div> " I m trying to include the common html tags we would be using Thanks

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• Scraping html WITHOUT uniquie identifiers using python

  - by Nicholas Law

  I would like to design an algorithm using python that scrapes thousands of pages like this one and this one, gathers all the data and inserts it into a MySQL database. The script will be run on a weekly or bi-weekly basis to update the database of any new information added to each individual page. Ideally I would like a scraper that is easy to work with for table structured data but also data that does not have unique identifiers (ie. id and classes attributes). Which scraper add-on should I use? BeautifulSoup, Scrapy or Mechanize? Are there any particular tutorials/books I should be looking at for this desired result? In the long-run I will be implementing a mobile app that works with all this data through querying the database.

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• Pattern for iPhone background loading during init?

  - by Rob S.

  Hi everyone, I'm currently kicking off a background thread to do some REST queries in my app delegate's didFinishLaunchingWithOptions. This thread creates some objects and populates the model as the rest of the app continues to load (because I don't block, and didFinishLaunchingWithOptions returns YES). I also put up a loading UIViewController 'on top' of the main view that I tear down after the background initialization is complete. My problem is that I need to notify the first view (call it the Home view) that the model is ready, and that it should populate itself. The trick is that the background download could have finished before Home.viewDidAppear is called, or any of the other Home.initX methods. I'm having difficulty synchronizing all of this and I've thought about it long enough that it feels like I'm barking up the wrong tree. Are there any patterns here for this sort of thing? I'm sure other apps start by performing lengthy operations with loading screens :) Thanks!

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• What happens to a transaction when App Pool recycles or the worker process is terminated forcefully?

  - by ARS

  The architecture of the application is straight forward. There is a web application which maintain account holder data. This data is processed and the status of account holders is updated based on number of business rules. This process is initiated using a button on the page and is a long running process (say 15 mins). A component is developed to do this data processing which internally calls stored procedures. Most of the business rules are kept in stored procedure. To handle timeouts the processing is done asynchornously(using Thread Pool or custom thread or Async Callback Delegates). The entire process run under a transaction. I would like to know your view on what happens to the transaction if the app pool is recycled or the worker process is terminated forcefully?

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• How to find/display the Upload File limits on IIS with ASP.NET?

  - by NVRAM

  I have a web service on which the end users will be uploading ZIP archives that can be very large (one test file is over 200MB). I'd like to handle oversized files proactively and size-limited upload failures gracefully. Since the web app will be deployed on customers' machines, so I cannot easily ensure that the configuration matches any fixed size. I've documented how to use the appcmd command for them to set the requestLimits.maxAllowedContentLength value beyond the 30MB default. But I'd like to handle it in the web app; I'm hoping for two things: To show the current limit on the page where they initiate the file upload, something along the lines of: Each file upload is limited to 15MB. If your archive is larger, (etc., etc., etc.) To give a meaningful error when that size is exceeded. Currently, it takes a long time for the data to be sent, and then I see a misleading 404 page. Any thoughts?

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• API verbs for an interruptible operation

  - by 280Z28

  I have a long running task as part of my application. The task can be started, paused, resumed, and cancelled. I'm trying to find the best interface for these operations. Two seem clear: Pause and Cancel. This leaves the start and resume operations. I could include both Start and Resume. This has the downside of either requiring the API consumer to check the state before starting/resuming the operation to call the right method, or making the methods aliases of each other. I'm thinking I should include either Start or Resume, but I don't know which one is the most appropriate. Does anyone have any examples in the .NET Framework of such behavior? I prefer to follow established patterns whenever they are available.

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• troulbe adding success flag to onbeforeunload

  - by Dirty Bird Design

  having issues with onbeforeunload. I have a long form broken into segments via a jquery wizard plug in. I need to pop a confirm dialog if you hit back, refresh, close etc on any step but need it to NOT POP the confirm dialog on click of the submit button. had it working, or at least I thought, it doesn't now. <script type="text/javascript"> var okToSubmit = false; window.onbeforeunload = function() { document.getElementById('Register').onclick = function() { okToSubmit = true; }; if(!okToSubmit) return "Using the browsers back button will cause you to lose all form data. Please use the Next and Back buttons on the form"; }; </script> 'Register' is the submit button ID. Please help!

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• Forced naming of parameters in python

  - by Mark Mayo

  In python you may have a function definition: def info(object, spacing=10, collapse=1) which could be called in any of the following ways: info(odbchelper) info(odbchelper, 12) info(odbchelper, collapse=0) info(spacing=15, object=odbchelper) thanks to python's allowing of any-order arguments, so long as they're named. The problem we're having is as some of our larger functions grow, people might be adding parameters between spacing and collapse, meaning that the wrong values may be going to parameters that aren't named. In addition sometimes it's not always clear as to what needs to go in. We're after a way to force people to name certain parameters - not just a coding standard, but ideally a flag or pydev plugin? so that in the above 4 examples, only the last would pass the check as all the parameters are named. Odds are we'll only turn it on for certain functions, but any suggestions as to how to implement this - or if it's even possible would be appreciated.

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• Php/Javascript to make a browser game?

  - by user335932

  I've been on and off intrested in making a text based browser game. I have been turned off by the idea because of the daunting amount of things to learn. PHP (or another sever side scripting language) Javascript HTML MySql And the fact of severs and apache.. Can I just pay for web hosting and by-pass having to set-up apache? Also how long will it take me to learn all thoose things well enough to start work on my game? Should I just stick with Flash and then C# for XNA?

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• Password remember does not work as needed

  - by sweetsecret

  On the website I am working on it has been deployed but the problem I am facing is that when I enter a username and password and click on the check box to remember...It remembers the password for sometime.. wen I login in after 5 or 10 minutes it remembers the password but aftr a long period of time like about 2hours it forgets the username and password and i have to type it in all over again... this dint used to happen with the old server as even I could sign in and it remembered the password the next day until i log off... what can be the reason The session state im using is:

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• Can not recognize pdf scanned page with greek words by using PB , EZTWAIN and TOCR 3.0

  - by sgian76

  Hi, Iam using PB 10.5.2 and EZTwain 3.30.0.28, XDefs 1.36b1 by Dosadi for scanning. Also Iam using the TOCR 3.0 for OCR management. In a function we use the following among all others : ... Long ll_acquire (as_path_filename is a function argument) ... ... TWAIN_SetAutoOCR(1) ll_acquire = TWAIN_AcquireMultipageFile(0, as_path_filename) the problem is that the scanned pdf page has latin (english) and greek words. The English characters are searched quite precisely but the greek don't at all. Do you think this that this has to do with the TOCR software. I just want to search AND for greek words Thanks in advance

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