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• Entity Framework - Using Transactions or SaveChanges(false) and AcceptAllChanges()?

  - by mark smith

  Hi there, I have been investigating transactions and it appears that they take call of them selves in EF as long as i pass false to savechanges.. SaveChanges(false) and if all goes well then AcceptAllChanges() Question is what is something goes bad, don't have to rollback? or as soon as the my method goes out of scope its ended? What happens to any indentiy columns that were assigned half way through the transaction.. i presume if somebody else added a record after mine before mine went bad then this means there will be a missing Identity value. Is there any reason to use standard "transactionScope" in code? ideas? - thanks

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• How can I change the images on an ImageButton in Android when using a OnTouchListener?

  - by Cody

  I have the following code which creates an ImageButton and plays a sound when clicked: ImageButton SoundButton1 = (ImageButton)findViewById(R.id.sound1); SoundButton1.setImageResource(R.drawable.my_button); SoundButton1.setOnTouchListener(new OnTouchListener() { public boolean onTouch(View v, MotionEvent event) { if (event.getAction() == MotionEvent.ACTION_DOWN ) { mSoundManager.playSound(1); return true; } return false; } }); The problem is that I want the image on the ImageButton to change when you press it. The OnTouchListener appears to be overriding the touch and not allowing the images to change. As soon as I remove the OnTouchListener, the ImageButton swaps to a different image when pressed. Any ideas on how I can have the images change on the ImageButton while still using the OnTouchListener? Thank you very much!

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• InstallShield 2010 - 1603 Fatal Error [Windows Installer] (Windows 7 Only)

  - by gtas

  Hi all, I created an MSI InstalScript Project where i deploy a web based (ASP.NET) precompiled project copying the files during installation in the \inetpub\wwwroot\projectnamefolder, creating an AppPool and the virtual dir of course in the IIS. The setup works great in windows XP Pro (SP3 i used). But soon as i try in Windows 7 (tried Ultimate and Home Premium) i get a -1603 Fatal Error during installation...Windows Installer Help (MSI.chm) or MSDN for more info.... Dying to fix this... [Edit] I think error occurs when trying to create the Application in the IIS. [FIXED] Enable 32 Bit Apllications needs to be true when creating Application Pools through InstallShield in a 64 bit OS!

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• How to update an XBAP’s config file after deployment

  - by maharaj

  Hi All, Here is my scenario and would love any feedback. We have a WPF XBAP application which gets hosted on our customer's IIS server on which we as a vendor do not have any control over. So as a part of configuration, clients first need to configure the WCF service to point to the proper endpoints. Default location for the service is say "http://localhost/XYZ.svc" which needs to change to proper adderess such as "http://USC.intl.edu/XYZ.svc" (offcourse our service is not called XYZ, just using that name as an example). Problem in our test scenario is as soon as we change these values in the config file (Appname.exe.config) the manifest file becomes invalid and we start getting errors. The solutions that I have looked at talk about mageui.exe. Our clinets may not have this utility. So how can we achieve this without using this utility and have the app be configurable. Any input will be appreciated. Thanks, Salil

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• jquery.autocomplete doesn't work in compability mode

  - by Oskar Kjellin

  I've read all the results I can find on SO about this without finding anything that applies to me, so don't judge me too quickly :) I am using jquery.autocomplete downloaded from here: http://www.dyve.net/jquery/?autocomplete together with http://ajax.microsoft.com/ajax/jquery/jquery-1.3.2.js This all works well in IE8 and FF, but as soon as I activate compability mode in IE8 I keep getting: Microsoft JScript runtime error: Object doesn't support this property or method When looking in the call stack, This is the one where it breaks: <script type="text/javascript"> $().ready(function() { $("#friendsearch").autocomplete("/Account/FindFriends"); }); </script> and then the calling function is this: if ( jQuery.readyList ) { // Execute all of them jQuery.each( jQuery.readyList, function(){ this.call( document, jQuery ); }); // Reset the list of functions jQuery.readyList = null; } where this line throws the error: this.call( document, jQuery ); Does anybody know why this happens? As mentioned above, works super in IE8 and firefox, but not in compability mode(IE7)

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• Coding Competition, language agnostic guidelines?

  - by Miau

  Hi there: I might be doing a coding competition soon, I was wondering if anyone made one and what where the guidelines/ process. I'd like to make the competition appealing to all devs, and I m trying to come up with ideas as to how. the scenario is: There is an event running and we(of the coding competition) will have a room that we can use (either to code or for questions, etc), however, ideally the task for the competition should be assignet and they should eb able to go and do other things, if they are so inclined. what i wonder is what kind of challenges to give, and most importantly, what is the criteria to "win" teaching and learning good coding standards takes a looong time, and I d like to think that if you ve been coding for longer you ll do things right and quick... but in a competition, you would be cutting corners... I would really appreciate your input on this

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• iphone - UIImagePickerController compressing video?

  - by Mike

  I am using a UIImagePickerController to get a video from the library. So, I am using this picker = [[UIImagePickerController alloc] init]; picker.delegate = self; picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; picker.mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:picker.sourceType]; picker.allowsEditing = NO; picker.mediaTypes = [NSArray arrayWithObject:(NSString *)kUTTypeMovie]; [self presentModalViewController:picker animated:YES]; [picker release]; As soon as I select the video and tap on CHOOSE, I see the message "Compressing Video" and it stays ages stuck... I waited for 5 minutes and the message was still there. Is there a way to prevent this? Why I cannot simply take a copy of the move as it is. I do not want any compressing... is there a way to solve this? thanks.

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• Strange remoting connection problem

  - by Voyager Systems

  In trying to configure a .NET remoting setup over TCP, I've been having problems accepting outside connections (connections from any computer not on my LAN). I did some investigation and hit netstat -a as soon as my friend started to connect. Here's what I saw: TCP 0.0.0.0:2594 Taylor-PC:0 LISTENING ... TCP 192.168.1.102:2594 24-155-7-16:63588 ESTABLISHED TCP 192.168.1.102:62488 192.168.0.100:1554 SYN_SENT Now here's the weird part: 24.155.7.16 is my friend's IP (modified) and it says the connection is established. But the connection hangs until it times out. I then found out that 192.168.0.100 is his local address on his network. Something screwy's going on somewhere. My server and client are both TCPChannels, the latter initialized 'new TCPChannel( 0 ).' Localhost connections work when I run a client on the same machine as the server, but I can't accept remote connections. There is no port forwarding or firewall issue. Thanks for the help

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• 'System.Windows.Forms.AxHost+InvalidActiveXStateException' in WPF

  - by Gagan

  I am trying to make a WPF Application and using the Visio Controls. I have a dll named AxInterop.Microsoft.Office.Interop.VisOcx and I refer it to instantiate an object of the type AxDrawingControl(). Now as soon as I write this code: AxDrawingControl objDrawControl=new AxDrawingControl(); and check the attributes of this object objDrawControl in the debug mode, I see this message: Exception of type 'System.Windows.Forms.AxHost+InvalidActiveXStateException' was thrown. Here is how it looks like: Please help me to get this thing resolved! Please!

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• Running IE6, IE7, and IE8 on the same machine

  - by Alessandro Vernet

  Like everyone else ;), I need to test my code on IE6 and IE7. Now IE8 has some great tools for developer, which I'd like to use. I'd also like to start testing my code with IE8, as it will soon be released. The question is: how to run IE6, IE7, and IE8 on the same machine. So far with IE6 and IE7 I've been using Multiple IE. But people have reported (see comments on the page linked in the previous sentence) issue with IE6 after installing IE8. Those errors are related to focus in form fields. Running IE7 wouldn't matter so much as IE8 can use the IE7 rendering engine, but we still need IE6. Any recommendation on how to IE6, IE7, and IE8 on the same machine?

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• VS2010 Custom Code Analysis Rule

  - by devlife

  I'm trying to write a custom fxcop rule for mstest projects VS2010. I'd like to debug it but keep getting an exception when it tries to load the dll for the mstest project it fails stating that it can't find referenced assembly: Microsoft.FxCop.Common.AssemblyLoadException Could not load C:\Users\Administrator\Documents\Visual Studio 2010\Projects\20100106-CodeAnalysisRulesBlogDemo\BlogDemo\TestProject1\bin\Debug\TestProject1.dll. Microsoft.FxCop.Sdk.InvalidMetadataException The following error was encountered while reading module 'TestProject1': Assembly reference cannot be resolved: Microsoft.VisualStudio.QualityTools.UnitTestFramework, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a. Does anyone have any idea how to resolve this? If I just run the code analysis it works fine but as soon as I try to debug it fails. Thanks

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• Is there a python openid apps-discovery library to get appengine apps onto the apps marketplace

  - by molicule

  I'm looking for info on howto get a google appengine app onto the newly announced google apps marketplace. The page at http://code.google.com/googleapps/marketplace/sso.html does not have a python openid apps-discovery library which seems to be the stumbling block. Has anyone ported an appengine app to the marketplace? or know of the existence of a python openid apps-discovery library? or have a timeline on this? updated: please see comment re: standard python openid library vs library that supports "apps-discovery" updated: apparently it is not currently possible, however it will be soon see http://www.google.com/support/forum/p/apps-apis/thread?tid=52e36f012c2436c3&hl=en

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• Core Data Error "Fetch Request must have an entity"

  - by Graeme

  Hi, I've attempted to add the TopSongs parser and Core Data files into my application, and it now builds succesfully, with no errors or warning messages. However, as soon as the app loads, it crashes, giving the following reason: *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'executeFetchRequest:error: A fetch request must have an entity.' I have renamed all files, including the .xcdatamodel file. Could this be the problem (the renaming of the .xcdatamodel)? I'm assuming this error means that no data can be found. Thanks.

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• How do I run my C# application in scheduled tasks when I am not logged in

  - by Peggy A

  I have a C# console application that just processes data. The problem is that when I log off, the console application ends. If I schedule the application to run at a set time and I am not logged in, the application does not run at all. I can run it interactively by double clicking the exe and I can open scheduled tasks and run it by right clicking and selecting run. As soon as I log out, the application ends. Any help will be greatly appreciated.

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• How to catch all exceptions in Flex?

  - by Yaba

  When I run a Flex application in the debug flash player I get an exception pop up as soon as something unexpected happened. However when a customer uses the application he does not use the debug flash player. In this case he does not get an exception pop up, but he UI is not working. So for supportability reasons, I would like to catch any exception that can happen anywhere in the Flex UI and present an error message in a Flex internal popup. By using Java I would just encapsulate the whole UI code in a try/catch block, but with MXML applications in Flex I do not know, where I could perform such a general try/catch.

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• Code golf: find all anagrams

  - by Charles Ma

  An word is an anagram if the letters in that word can be re-arranged to form a different word. Task: Find all sets of anagrams given a word list Input: a list of words from stdin with each word separated by a new line e.g. A A's AOL AOL's Aachen Aachen's Aaliyah Aaliyah's Aaron Aaron's Abbas Abbasid Abbasid's Output: All sets of anagrams, with each set separated by a separate line Example run: ./anagram < words marcos caroms macros lump's plum's dewar's wader's postman tampons dent tend macho mocha stoker's stroke's hops posh shop chasity scythia ... I have a 149 char perl solution which I'll post as soon as a few more people post :) Have fun!

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• Unit Testing iPhone - Linker Errors

  - by sliver

  I've followed the Unit Testing Applications guide from the iPhone Development documentation. I followed all the steps and it worked with the TestCase from the documentation. But as soon as I changed the TestCase to test real Code from my project I ended up with linker errors. All classes that are used in the TestCase are reported as missing. I've already searched the internet and found that the Bundle Loader property must be set to "$(BUILT_PRODUCTS_DIR)/MyApplication.app/Contents/MacOS/MyApplication". But this also fails because the file could not be found. Any ideas what I have to do to tell the linker where to search for the missing files?

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• Using a form HTML form in Cognos 8.4

  - by Rahul Kadam

  Hi, Iam using a HTML form in my Cognos 8.4 report the code for which is seen below:- <form name="floodzone"><p> <input type="text" size="60" name="address" value="1600 Amphitheatre Pky, Mountain View, CA" /> <input type="button" value="Go!" onclick="showAddress();" /> </p> <div id="map_canvas" style="width: 1000px; height: 375px"></div></form>** and i am referencing the above code in the follwoing manner in the HTML item itself:- function showAddress() { //var address = alert(document.floodzone.address.value);} But when i click on the Go button i get the following error as an 'Error in page' (the one u get on the browsers):- Error: 'document.floodzone.address' is null or not an object this same code when i run using Frontpage or Normal IE itself runs fine. But as soon as i put this in Cognos HTML container it thros the error. Request any leads into this.

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• callback execution order in jQuery getJSON

  - by lau

  I'm trying to implement a iGoogle like dashboard interface using widgets that get their content from other sites using JSONP calls. The problem is that if the first widget that calls the "$.ajax" takes 8 seconds to get the content back, it seems that the callbacks of the other widgets will only be called after the callback of the first widget gets executed. For the user experience, it would be better if the widgets could be displayed as soon as they get the content back from the remote sites, and not wait for those that were scheduled before to complete. Is there a way I can do that?

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• First TDD, Simple 2-tier C# Project - what do I unit test?

  - by Joel

  This is probably a stupid question but my googling isn't finding a satisfactory answer. I'm starting a small project in C#, with just a business layer and a data access layer - strangely, the UI will come later, and I have very little (read:no) concept / control over what it will look like. I would like to try TDD for this project. I'm using Visual Studio 2008 (soon to be 2010), I have ReSharper 5, and nUnit. Again, I want to do Test-Driven Development, but not necessarily the entire XP system. My question is - when and where do I write the first unit test? Do I only test logic before I write it, or do I test everything? It seems counter-productive to test things that have no reason to fail (auto-properties, empty constructors)...but it seems like the "No new code without a failing test" maxim requires this. Links or references are fine (but preferably to online resources, not books - I would like to get started ASAP). Thanks in advance for any guidance!

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• Resources for rails widget creation

  - by Kenji Crosland

  My rails app is about to go live and I'm trying to figure out how to create a widget based on data on the site. My Javascript is not too hot--limited to the O'reilly head first book on JS. I can read simple Javascript okay but when it comes to writing it I'm a little lost. That said, I hope to roll out a widget, maybe a wordpress plugin too soon after my app is launched. Does anyone know of any rails plugins, javascript templates, tutorials or books that can get me going? I did ask a similar question before here: But my limited knowledge of JS kept me from implementing the suggested answer properly.

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• Hosted Mac OS X/iPhone development

  - by dwj

  I want to try my hand at developing for the iPhone but I don't have an Intel-based Mac available to me; likewise, my budget doesn't include provisions for getting one anytime soon. I've tried messing around with winchain and that hasn't gone too well. I'm not interested in jail-breaking my phone and installing other tools for developing. I've read posts on using older macs with the development tool-kit but haven't tried it yet. In the end I just want to know I can compile without doing a ton of extra work or finding work-arounds. I don't mind only having access to a CLI compiler. Does anyone know of a hosting service that provides a shell access account on Intel-based Mac OS X machines?

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• jQuery datepicker causes page overflow

  - by nc3b

  I am using the datepicker control from jQuery-ui 1.8. from-date is a text input. I am attaching a very simple datepicker: $('#from-date').datepicker(); This causes the page to overflow (vertical scrollbar), which I am trying to avoid. As soon as I click the from-date, the datepicker control appears, and the scrollbar dissapears. After dismissing the datepicker, the scrollbar doesn't appear anymore. The text field is inside a div that has overflow:auto and a fixed height and width. I suspect it's a z-index issue. What am I doing wrong ? How would I debug this ?

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• How do I apply multiple rotation transforms on a Raphael text object?

  - by Pridkett

  I have a Raphael text object that I would like to rotate around an axis some distance away and also rotate the text accordingly so it stays horizontal. I know this is possible using SVG transformation matrices, but the author of Raphael has stated that they won't be a part of the toolkit anytime soon. Here's some code of what I'd like to do: txt_obj = paper.text(100, 0, "Hello!"); txt_obj.rotate(90, 100, 100); // rotate text so it is sideways at (200,100) txt_obj.rotate(-90); // rotate text back to horizontal Unfortunately, the second rotate command obliterates the translation and rotation accomplished by the first. Ideally I'd like to animate the operation, but I'll take it one step at a time for right now.

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• Error while creating in app purchase in itunes connect

  - by MW

  I'm having trouble while creating an In App Purchase in iTunes Connect. I have created a test user and am able to see the form for creating the in app purchase. However, when pressing 'Save' I get the following error message: "There was an error saving changes. Please try again later. If the problem persists, please contact us." This error has persisted for about 24 hours now. Have you encountered this problem, and do you know any way to get around it? Edit 2009-11-10: I just received a response from my email to Apple. It stated that they will start looking into it, and expect to have a solution within three business days. As soon as I hear something new, I'll post it here.

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