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• Moving from Tortoise to TFS

  - by MarkPearl

  The Past A few years ago my small software company made the jump from storing code on a shared folder to source code control. At the time we had evaluated a few of the options and settled on Tortoise SVN. The main motivation for going the SVN route was that we found a great plugin for Visual Studio that allowed us to avoid the command prompt for uploading changes (like I said we are windows programmers… command prompt bad!! ) and it was free. Up to now we have been pretty happy with SVN as it removed many of the worries that I had about how safe my code was on a shared folder and also gave us the opportunity to safely have several developers work on the same project at the same time. The only times when we have been unhappy has been when we have had SVN hell days – which pretty much occur when you are doing something out of the norm and suddenly SVN just won’t resolve conflicts or something along those lines. This happens once every 4 or 5 months and is not necessarily a problem caused directly by SVN – but a problem augmented by SVN. When you have SVN hell days you want to curse SVN! With that in mind I recently have been relooking at our source code control. I have explored using GIT and was very impressed by it and have also looked at TFS. From a source code control perspective I don’t want to get into a heated discussion on which one is better – but I do want to mention that I wear two hats in my organization – software developer & manager, and with the manager hat on I tend to sway the TFS route. So when I was given a coupon to test DiscountASP.Net Team Foundation Server Service for a year, I thought it was the perfect opportunity to try TFS in a distributed environment and also make the first step towards having an integrated development management system. Some of the things that appeal to me about DiscountASP’s offering are the following… Basic management / planning facilities like to do lists inside Visual Studio Daily backup of data on the server – we are developers, not IT managers and so the more of this I could outsource the better Distributed solution – all of us work remotely and so this was a big one as well. Registering and Setting Up with DiscountASP.NET The whole registration process was simple and intuitive. The web interface is not the most visually impressive one, but it is functional and a few seconds after I clicked the last submit button a email was sitting in my inbox giving me my control panel username and suggesting that I read the “Getting Started” article. The getting started article was easy to read and understand so no complaints there either. Next to set my dev environment to work. With a few references to the getting started article I had completed the whole setup process in a matter of minutes. Ten minutes after initiating the whole thing I was logged into VS2010 and creating my first TFS project. With the service that I signed up for, I have access for 5 users – which is sufficient for my internal needs. So from what I can tell, to set the rest of us up on the system I just need to supply them with their user credentials and url. My Concerns Resolved 1) Security So, a few concerns I had about the service. First and foremost – is it secure? I would hate for someone to get access to our code and the whole idea of putting it up on the internet is a concern for me. Turning to the Knowledge Base on the DiscountASP website this is one of the first question I can see answered. According to them it is secure. I have extracted their comment below regarding this. Our TFS hosting service is secure. We only accept HTTPS connections ensuring that any client-server data transmission is encrypted. At the network level, all of our systems are protected by multiple Juniper firewalls, Tipping Point's Intrusion Detection System (see Tipping Point's case study of our use here), and we also employ DDoS mitigation to add extra layers of security. Additionally, physical access to the servers is tightly restricted. Please see the security section of this Knowledge Base article for further details. 2) Web Portal Access The other big concern I have is regarding web portal access. In the ideal world I would like to be able to give my end users access to a web portal for reporting bugs etc. When I initially read through the FAQ of the site it mentioned that there was web portal access – but from what I can see this is just for “users”. Since I am limited to 5 users for the account, it would not be practical to set up external users that we could get feedback from on bugs etc. I would be interested if this is possible – and if so if someone could post it in the comments it would be much appreciated. If this isn’t possible, it is a slight let down as we rely heavily on end user feedback to get feedback and it would have been ideal to have gotten this within the service. Other than those two items, I didn’t have any real concerns that were unresolved. So where do I go from here? So time passed by from the initial writing of this post and as work whirred in and out of my inbox I have still not had a proper opportunity to give the service a test run. Recently though things have began to slow down and then surprise surprise I had another SVN Hell day. With that experience I had a new found resolve to get our team on TFS and so today we are going to start to use the service as a team. I am hoping that I do not have TFS hell days – but if I do, I will be sure to write about them. In short - the verdict is still out on whether this service is going to be invaluable to my business or whether it will create more headaches than it is worth BUT I am hopping it will be an invaluable service. I will only really be able to determine that in a few months… till then!

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• .NET Code Evolution

  - by Alois Kraus

  Originally posted on: http://geekswithblogs.net/akraus1/archive/2013/07/24/153504.aspxAt my day job I do look at a lot of code written by other people. Most of the code is quite good and some is even a masterpiece. And there is also code which makes you think WTF… oh it was written by me. Hm not so bad after all. There are many excuses reasons for bad code. Most often it is time pressure followed by not enough ambition (who cares) or insufficient training. Normally I do care about code quality quite a lot which makes me a (perceived) slow worker who does write many tests and refines the code quite a lot because of the design deficiencies. Most of the deficiencies I do find by putting my design under stress while checking for invariants. It does also help a lot to step into the code with a debugger (sometimes also Windbg). I do this much more often when my tests are red. That way I do get a much better understanding what my code really does and not what I think it should be doing. This time I do want to show you how code can evolve over the years with different .NET Framework versions. Once there was  time where .NET 1.1 was new and many C++ programmers did switch over to get rid of not initialized pointers and memory leaks. There were also nice new data structures available such as the Hashtable which is fast lookup table with O(1) time complexity. All was good and much code was written since then. At 2005 a new version of the .NET Framework did arrive which did bring many new things like generics and new data structures. The “old” fashioned way of Hashtable were coming to an end and everyone used the new Dictionary<xx,xx> type instead which was type safe and faster because the object to type conversion (aka boxing) was no longer necessary. I think 95% of all Hashtables and dictionaries use string as key. Often it is convenient to ignore casing to make it easy to look up values which the user did enter. An often followed route is to convert the string to upper case before putting it into the Hashtable. Hashtable Table = new Hashtable(); void Add(string key, string value) { Table.Add(key.ToUpper(), value); } This is valid and working code but it has problems. First we can pass to the Hashtable a custom IEqualityComparer to do the string matching case insensitive. Second we can switch over to the now also old Dictionary type to become a little faster and we can keep the the original keys (not upper cased) in the dictionary. Dictionary<string, string> DictTable = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase); void AddDict(string key, string value) { DictTable.Add(key, value); } Many people do not user the other ctors of Dictionary because they do shy away from the overhead of writing their own comparer. They do not know that .NET has for strings already predefined comparers at hand which you can directly use. Today in the many core area we do use threads all over the place. Sometimes things break in subtle ways but most of the time it is sufficient to place a lock around the offender. Threading has become so mainstream that it may sound weird that in the year 2000 some guy got a huge incentive for the idea to reduce the time to process calibration data from 12 hours to 6 hours by using two threads on a dual core machine. Threading does make it easy to become faster at the expense of correctness. Correct and scalable multithreading can be arbitrarily hard to achieve depending on the problem you are trying to solve. Lets suppose we want to process millions of items with two threads and count the processed items processed by all threads. A typical beginners code might look like this: int Counter; void IJustLearnedToUseThreads() { var t1 = new Thread(ThreadWorkMethod); t1.Start(); var t2 = new Thread(ThreadWorkMethod); t2.Start(); t1.Join(); t2.Join(); if (Counter != 2 * Increments) throw new Exception("Hmm " + Counter + " != " + 2 * Increments); } const int Increments = 10 * 1000 * 1000; void ThreadWorkMethod() { for (int i = 0; i < Increments; i++) { Counter++; } } It does throw an exception with the message e.g. “Hmm 10.222.287 != 20.000.000” and does never finish. The code does fail because the assumption that Counter++ is an atomic operation is wrong. The ++ operator is just a shortcut for Counter = Counter + 1 This does involve reading the counter from a memory location into the CPU, incrementing value on the CPU and writing the new value back to the memory location. When we do look at the generated assembly code we will see only inc dword ptr [ecx+10h] which is only one instruction. Yes it is one instruction but it is not atomic. All modern CPUs have several layers of caches (L1,L2,L3) which try to hide the fact how slow actual main memory accesses are. Since cache is just another word for redundant copy it can happen that one CPU does read a value from main memory into the cache, modifies it and write it back to the main memory. The problem is that at least the L1 cache is not shared between CPUs so it can happen that one CPU does make changes to values which did change in meantime in the main memory. From the exception you can see we did increment the value 20 million times but half of the changes were lost because we did overwrite the already changed value from the other thread. This is a very common case and people do learn to protect their  data with proper locking.   void Intermediate() { var time = Stopwatch.StartNew(); Action acc = ThreadWorkMethod_Intermediate; var ar1 = acc.BeginInvoke(null, null); var ar2 = acc.BeginInvoke(null, null); ar1.AsyncWaitHandle.WaitOne(); ar2.AsyncWaitHandle.WaitOne(); if (Counter != 2 * Increments) throw new Exception(String.Format("Hmm {0:N0} != {1:N0}", Counter, 2 * Increments)); Console.WriteLine("Intermediate did take: {0:F1}s", time.Elapsed.TotalSeconds); } void ThreadWorkMethod_Intermediate() { for (int i = 0; i < Increments; i++) { lock (this) { Counter++; } } } This is better and does use the .NET Threadpool to get rid of manual thread management. It does give the expected result but it can result in deadlocks because you do lock on this. This is in general a bad idea since it can lead to deadlocks when other threads use your class instance as lock object. It is therefore recommended to create a private object as lock object to ensure that nobody else can lock your lock object. When you read more about threading you will read about lock free algorithms. They are nice and can improve performance quite a lot but you need to pay close attention to the CLR memory model. It does make quite weak guarantees in general but it can still work because your CPU architecture does give you more invariants than the CLR memory model. For a simple counter there is an easy lock free alternative present with the Interlocked class in .NET. As a general rule you should not try to write lock free algos since most likely you will fail to get it right on all CPU architectures. void Experienced() { var time = Stopwatch.StartNew(); Task t1 = Task.Factory.StartNew(ThreadWorkMethod_Experienced); Task t2 = Task.Factory.StartNew(ThreadWorkMethod_Experienced); t1.Wait(); t2.Wait(); if (Counter != 2 * Increments) throw new Exception(String.Format("Hmm {0:N0} != {1:N0}", Counter, 2 * Increments)); Console.WriteLine("Experienced did take: {0:F1}s", time.Elapsed.TotalSeconds); } void ThreadWorkMethod_Experienced() { for (int i = 0; i < Increments; i++) { Interlocked.Increment(ref Counter); } } Since time does move forward we do not use threads explicitly anymore but the much nicer Task abstraction which was introduced with .NET 4 at 2010. It is educational to look at the generated assembly code. The Interlocked.Increment method must be called which does wondrous things right? Lets see: lock inc dword ptr [eax] The first thing to note that there is no method call at all. Why? Because the JIT compiler does know very well about CPU intrinsic functions. Atomic operations which do lock the memory bus to prevent other processors to read stale values are such things. Second: This is the same increment call prefixed with a lock instruction. The only reason for the existence of the Interlocked class is that the JIT compiler can compile it to the matching CPU intrinsic functions which can not only increment by one but can also do an add, exchange and a combined compare and exchange operation. But be warned that the correct usage of its methods can be tricky. If you try to be clever and look a the generated IL code and try to reason about its efficiency you will fail. Only the generated machine code counts. Is this the best code we can write? Perhaps. It is nice and clean. But can we make it any faster? Lets see how good we are doing currently. Level Time in s IJustLearnedToUseThreads Flawed Code Intermediate 1,5 (lock) Experienced 0,3 (Interlocked.Increment) Master 0,1 (1,0 for int[2]) That lock free thing is really a nice thing. But if you read more about CPU cache, cache coherency, false sharing you can do even better. int[] Counters = new int[12]; // Cache line size is 64 bytes on my machine with an 8 way associative cache try for yourself e.g. 64 on more modern CPUs void Master() { var time = Stopwatch.StartNew(); Task t1 = Task.Factory.StartNew(ThreadWorkMethod_Master, 0); Task t2 = Task.Factory.StartNew(ThreadWorkMethod_Master, Counters.Length - 1); t1.Wait(); t2.Wait(); Counter = Counters[0] + Counters[Counters.Length - 1]; if (Counter != 2 * Increments) throw new Exception(String.Format("Hmm {0:N0} != {1:N0}", Counter, 2 * Increments)); Console.WriteLine("Master did take: {0:F1}s", time.Elapsed.TotalSeconds); } void ThreadWorkMethod_Master(object number) { int index = (int) number; for (int i = 0; i < Increments; i++) { Counters[index]++; } } The key insight here is to use for each core its own value. But if you simply use simply an integer array of two items, one for each core and add the items at the end you will be much slower than the lock free version (factor 3). Each CPU core has its own cache line size which is something in the range of 16-256 bytes. When you do access a value from one location the CPU does not only fetch one value from main memory but a complete cache line (e.g. 16 bytes). This means that you do not pay for the next 15 bytes when you access them. This can lead to dramatic performance improvements and non obvious code which is faster although it does have many more memory reads than another algorithm. So what have we done here? We have started with correct code but it was lacking knowledge how to use the .NET Base Class Libraries optimally. Then we did try to get fancy and used threads for the first time and failed. Our next try was better but it still had non obvious issues (lock object exposed to the outside). Knowledge has increased further and we have found a lock free version of our counter which is a nice and clean way which is a perfectly valid solution. The last example is only here to show you how you can get most out of threading by paying close attention to your used data structures and CPU cache coherency. Although we are working in a virtual execution environment in a high level language with automatic memory management it does pay off to know the details down to the assembly level. Only if you continue to learn and to dig deeper you can come up with solutions no one else was even considering. I have studied particle physics which does help at the digging deeper part. Have you ever tried to solve Quantum Chromodynamics equations? Compared to that the rest must be easy ;-). Although I am no longer working in the Science field I take pride in discovering non obvious things. This can be a very hard to find bug or a new way to restructure data to make something 10 times faster. Now I need to get some sleep ….

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• D2K to OA Framework Transition

  - by PRajkumar

  What is the difference between D2K form and OA Framework? It is a very innocent but important question for someone that desires to make transition from D2K to OA Framework. I hope you have already read and implemented OA Framework Getting Started. I will re-visit my own experience of implementing HelloWorld program in "OA Framework". When I implemented HelloWorld a year ago, I had no clue as to what I was doing & why I was doing those steps. I merely copied the steps from Oracle Tutorial without understanding them. Hence in this blog, I will try to explain in simple manner the meaning of OA Framework HelloWorld Program and compare the steps to D2K form [where possible]. To keep things simple, only basics will be discussed. Following key Steps were needed for HelloWorld Step 1 Create a new Workspace and a new Project as dictated by Oracle's tutorial. When defining project, you will specify a default package, which in this case was oracle.apps.ak.hello This means the following: - ak is the short name of the Application in Oracle           [means fnd_applications.short_name] hello is the name of your project Step 2 Next, you will create a OA Page within hello project Think OA Page as the fmx file itself in D2K. I am saying so because this page gets attached to the form function. This page will be created within hello project, hence the package name oracle.apps.ak.hello.webui Note the webui, it is a convention to have page in webui, means this page represents the Web User Interface You will assign the default AM [OAApplicationModule]. Think of AM "Connection Manager" and "Transaction State Manager" for your page          I can't co-relate this to anything in D2k, as there is no concept of Connection Pooling and that D2k is not stateless. Reason being that as soon as you kick off a D2K Form, it connects to a single session of Oracle and sticks to that single Oracle database session. So is not the case in OAF, hence AM is needed. Step 3 You create Region within the Page. ·         Region is what will store your fields. Text input fields will be of type messageTextInput. Think of Canvas in D2K. You can have nested regions. Stacked Canvas in D2K comes the closest to this component of OA Framework Step 4 Add a button to one of the nested regions The itemStyle should be submitButton, in case you want the page to be submitted when this button is clicked There is no WHEN-BUTTON-PRESSED trigger in OAF. In Framework, you will add a controller java code to handle events like Form Submit button clicks. JDeveloper generates the default code for you. Primarily two functions [should I call methods] will be created processRequest [for UI Rendering Handling] and processFormRequest          Think of processRequest as WHEN-NEW-FORM-INSTANCE, though processRequest is very restrictive. Note What is the difference between processRequest and processFormRequest? These two methods are available in the Default Controller class that gets created. processFormRequest This method is commonly used to react/respond to the event that has taken place, for example click of a button. Some examples are if(oapagecontext.getParameter("Cancel") != null) (Do your processing for Cancellation/ Rollback) if(oapagecontext.getParameter("Submit") != null) (Do your validations and commit here) if(oapagecontext.getParameter("Update") != null) (Do your validations and commit here) In the above three examples, you could be calling oapagecontext.forwardImmediately to re-direct the page navigation to some other page if needed. processRequest In this method, usually page rendering related code is written. Effectively, each GUI component is a bean that gets initialised during processRequest. Those who are familiar with D2K forms, something like pre-query may be written in this method. Step 5 In the controller to access the value in field "HelloName" the command is String userContent = pageContext.getParameter("HelloName"); In D2k, we used :block.field. In OAFramework, at submission of page, all the field values get passed into to OAPageContext object. Use getParameter to access the field value To set the value of the field, use OAMessageTextInputBean field HelloName = (OAMessageTextInputBean)webBean.findChildRecursive("HelloName"); fieldHelloName.setText(pageContext,"Setting the default value" ); Note when setting field value in controller: Note 1. Do not set the value in processFormRequest Note 2. If the field comes from View Object, then do not use setText in controller Note 3. For control fields [that are not based on View Objects], you can use setText to assign values in processRequest method Lets take some notes to expand beyond the HelloWorld Project Note 1 In D2K-forms we sort of created a Window, attached to Canvas, and then fields within that Canvas. However in OA Framework, think of Page being fmx/Window, think of Region being a Canvas, and fields being within Regions. This is not a formal/accurate understanding of analogy between D2k and Framework, but is close to being logical. Note 2 In D2k, your Forms fmb file was compiled to fmx. It was fmx file that was deployed on mid-tier. In case of OAF, your OA Page is nothing but a XML file. We call this MDS [meta data]. Whatever name you give to "Page" in OAF, an XML file of the same name gets created. This xml file must then be loaded into database by using XML Importer command. Note 3 Apart from MDS XML file, almost everything else is merely deployed to your mid-tier. Usually this is underneath $JAVA_TOP/oracle/apps/../.. All java files will go underneath java top/oracle/apps/../.. etc. Note 4 When building tutorial, ignore the steps for setting "Attribute Sets". These are not mandatory. Oracle might just have developed their tutorials without including these. Think of these like Visual Attributes of D2K forms Note 5 Controller is where you will write any java code in OA Framework. You can create a Controller per Page or have a different Controller for each of the Regions with the same Page. Note 6 In the method processFormRequest of the Controller, you can access the values of the page by using notation pageContext.getParameter("<fieldname here>"). This method processFormRequest is executed when the OAF Screen/Page is submitted by click of a button. Note 7 Inside the controller, all the Database Related interactions for example interaction with View Objects happen via Application Module. But why so? Because Application Module Manages the transaction state of the Application. OAApplicationModuleImpl oaapplicationmoduleimpl = OAApplicationModuleImpl)oapagecontext.getApplicationModule(oawebbean); OADBTransaction oadbtransaction = OADBTransaction)oaapplicationmoduleimpl.getDBTransaction(); Note 8 In D2K, we have control block or a block based on database view. Similarly, in OA Framework, if the field does not have view Object attached, then it is like a control field. Hence in HelloWorld example, field HelloName is a control field [in D2K terminology]. A view Object can either be based on a view/table, synonym or on a SQL statement. Note 9 I wish to access the fields in multi record block that is based on view Object. Can I do this in Controller? Sure you can. To traverse through those records, do the below ·         Get the reference to the View Object using (OAViewObject)oapagecontext.getApplicationModule(oawebbean).findViewObject("VO Name Here") ·         Loop through the records in View Objects using count returned from oaviewobject.getFetchedRowCount() ·         For each record, fetch the value of the fields within the loop as oracle.jbo.Row row = oaviewobject.getRowAtRangeIndex(loop index here); (String)row.getAttribute("Column name of VO here ");

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• Error while installation of CHMSee

  - by Anshuman Chakraborty

  I have recently migrated from Windows to Ubuntu. My current locale shows below output :- cha@COMPUTER:~$ locale LANG=en_IN LANGUAGE=en_IN:en LC_CTYPE="en_IN" LC_NUMERIC="en_IN" LC_TIME="en_IN" LC_COLLATE="en_IN" LC_MONETARY="en_IN" LC_MESSAGES="en_IN" LC_PAPER="en_IN" LC_NAME="en_IN" LC_ADDRESS="en_IN" LC_TELEPHONE="en_IN" LC_MEASUREMENT="en_IN" LC_IDENTIFICATION="en_IN" LC_ALL= When I am trying to install CHMSee (or any other Application) using UBUNTU Software Center. I am getting below error. installArchives() failed: perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LANG = "en_IN.ISO8859-1" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). locale: Cannot set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_MESSAGES to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LANG = "en_IN.ISO8859-1" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). locale: Cannot set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_MESSAGES to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LANG = "en_IN.ISO8859-1" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). locale: Cannot set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_MESSAGES to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LANG = "en_IN.ISO8859-1" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). locale: Cannot set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_MESSAGES to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory Selecting previously unselected package libchm1. (Reading database ... (Reading database ... 5% (Reading database ... 10% (Reading database ... 15% (Reading database ... 20% (Reading database ... 25% (Reading database ... 30% (Reading database ... 35% (Reading database ... 40% (Reading database ... 45% (Reading database ... 50% (Reading database ... 55% (Reading database ... 60% (Reading database ... 65% (Reading database ... 70% (Reading database ... 75% (Reading database ... 80% (Reading database ... 85% (Reading database ... 90% (Reading database ... 95% (Reading database ... 100% (Reading database ... 207053 files and directories currently installed.) Unpacking libchm1 (from .../libchm1_2%3a0.40a-1_i386.deb) ... Selecting previously unselected package libjavascriptcoregtk-1.0-0. Unpacking libjavascriptcoregtk-1.0-0 (from .../libjavascriptcoregtk-1.0-0_1.8.0-0ubuntu2_i386.deb) ... Selecting previously unselected package libwebkitgtk-1.0-common. Unpacking libwebkitgtk-1.0-common (from .../libwebkitgtk-1.0-common_1.8.0-0ubuntu2_all.deb) ... Selecting previously unselected package libwebkitgtk-1.0-0. Unpacking libwebkitgtk-1.0-0 (from .../libwebkitgtk-1.0-0_1.8.0-0ubuntu2_i386.deb) ... Selecting previously unselected package chmsee. Unpacking chmsee (from .../chmsee_1.3.0-2ubuntu2_i386.deb) ... Processing triggers for bamfdaemon ... Rebuilding /usr/share/applications/bamf.index... Processing triggers for desktop-file-utils ... Processing triggers for gnome-menus ... Processing triggers for hicolor-icon-theme ... Processing triggers for man-db ... locale: Cannot set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_MESSAGES to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory Setting up qmail (1.06-4) ... The hostname -f command returned: $1 Your system needs to have a fully qualified domain name (fqdn) in order to install the var-qmail packages. Installation aborted. dpkg: error processing qmail (--configure): subprocess installed post-installation script returned error exit status 1 dpkg: dependency problems prevent configuration of qmail-run: qmail-run depends on qmail (>= 1.06-2.1); however: Package qmail is not configured yet. dpkg: error processing qmail-run (--configure): dependency problems - leaving unconfigured Setting up libchm1 (2:0.40a-1) ... No apport report written because the error message indicates its a followup error from a previous failure. Setting up libjavascriptcoregtk-1.0-0 (1.8.0-0ubuntu2) ... Setting up libwebkitgtk-1.0-common (1.8.0-0ubuntu2) ... Setting up libwebkitgtk-1.0-0 (1.8.0-0ubuntu2) ... Setting up chmsee (1.3.0-2ubuntu2) ... Processing triggers for libc-bin ... ldconfig deferred processing now taking place Errors were encountered while processing: qmail qmail-run Error in function: SystemError: E:Sub-process /usr/bin/dpkg returned an error code (1) Setting up qmail (1.06-4) ... The hostname -f command returned: $1 Your system needs to have a fully qualified domain name (fqdn) in order to install the var-qmail packages. Installation aborted. dpkg: error processing qmail (--configure): subprocess installed post-installation script returned error exit status 1 dpkg: dependency problems prevent configuration of qmail-run: qmail-run depends on qmail (>= 1.06-2.1); however: Package qmail is not configured yet. dpkg: error processing qmail-run (--configure): dependency problems - leaving unconfigured Can someone please help me in resolving this issue. The elaboration would be most appreciated since I am very new to this. Thanks, Anshuman Chakraborty

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• CodePlex Daily Summary for Monday, August 18, 2014

  CodePlex Daily Summary for Monday, August 18, 2014Popular ReleasesMagick.NET: Magick.NET 7.0.0.0001: Magick.NET linked with ImageMagick 7-Beta.CMake Tools for Visual Studio: CMake Tools for Visual Studio 1.2: This release adds the following new features and bug fixes from CMake Tools for Visual Studio 1.1: Added support for CMake 3.0. Added support for word completion. Added IntelliSense support for the CMAKEHOSTSYSTEM_INFORMATION command. Fixed syntax highlighting for tokens beginning with escape sequences. Fixed issue uninstalling CMake Tools for Visual Studio after Visual Studio has been uninstalled.GW2 Personal Assistant Overlay: GW2 Personal Assistant Overlay 1.1: Overview1.1 is the second 'stable' release of the GW2 Personal Assistant Overlay. This version includes just a couple of very minor features and some minor bug fixes. For details regarding installation, setup, and general use, see Documentation. Note: If you were using a previous version, you will probably want to copy over the following user settings files: GW2PAO.DungeonSettings.xml GW2PAO.EventSettings.xml GW2PAO.WvWSettings.xml GW2PAO.ZoneCompletionSettings.xml New FeaturesAdded new "No...WallSwitch: WallSwitch 1.2.5: Version 1.2.5 Changes: Added support for sequential order in collage mode. Added option to display multiple images per switch in collage mode. Fixed bug where border width wasn't being loaded properly, and was reverting to default values. Fixed bug where sequential order was repeating images on multiple monitors. Decreased likelihood of random images being repeated.OpenCppCoverage: OpenCppCoverage 0.9.1: - Add Jenkins support. - Command line argument can be placed inside a config file. If you do not have Visual Studio C++ 2013 you need to download redistributable packages: http://www.microsoft.com/en-us/download/details.aspx?id=40784Easy Backup Windows Service: Release 2.0 with CU: Fix log error when "To" directory not exist in fyle system. Force run program as administrator by default. Add 'everyday' schedule element. Update solution to VS 2013.Easy Backup Application: Release 2.0 with CU: Fix log error when "To" directory not exist in fyle system. Fix app location initialization. Force run program as administrator by default. Update solution to VS 2013.TEBookConverter: 1.5: Added: Turkish and French translations Added: A few interface changes Removed: SkinDynamulet: Dynamulet v0.1: DynamoDB Transaction Server v0.1Console parallel nunit tests runner: ConsoleUnitTestsRunner 1.03: bugfixingFluentx: Fluentx v1.5.3: Added few more extension methods.fastJSON: v2.1.2: 2.1.2 - bug fix circular referencesJPush.NET: JPush Server SDK 1.2.1 (For JPush V3): Assembly: 1.2.1.24728 JPush REST API Version: v3 JPush Documentation Reference .NET framework: v4.0 or above. Sample: class: JPushClientV3 2014 Augest 15th.SEToolbox: SEToolbox 01.043.008 Release 1: Changed ship/station names to use new DisplayName instead of Beacon/Antenna. Fixed issue with updated SE binaries 01.043.018 using new Voxel Material definitions.Google .Net API: Drive.Sample: Google .NET Client API – Drive.SampleInstructions for the Google .NET Client API – Drive.Sample</h2> http://code.google.com/p/google-api-dotnet-client/source/browse/?repo=samples#hg%2FDrive.SampleBrowse Source, or main file http://code.google.com/p/google-api-dotnet-client/source/browse/Drive.Sample/Program.cs?repo=samplesProgram.cs <h3>1. Checkout Instructions</h3> <p><b>Prerequisites:</b> Install Visual Studio, and <a href="http://mercurial.selenic.com/">Mercurial</a>.</p> ...FineUI - jQuery / ExtJS based ASP.NET Controls: FineUI v4.1.1: -??Form??????????????（???-5929）。 -?TemplateField??ExpandOnDoubleClick、ExpandOnEnter、ExpandToSelectRow????（LZOM-5932）。 -BodyPadding???????，??“5”“5 10”，???????????“5px”“5px 10px”。 -??TriggerBox?EnableEdit=false????，??????????????（Jango_Jing-5450）。 -???????????DataKeyNames???????????（yygy-6002）。 -????????????????????????（Gnid-6018）。 -??PageManager???AutoSizePanelID????，??????????????????（yygy-6008）。 -?FState???????????????，????????????????（????-5925）。 -??????OnClientClick???return?????????（FineU...DNN CMS Platform: 07.03.02: Major Highlights Fixed backwards compatibility issue with 3rd party control panels Fixed issue in the drag and drop functionality of the File Uploader in IE 11 and Safari Fixed issue where users were able to create pages with the same name Fixed issue that affected older versions of DNN that do not include the maxAllowedContentLength during upgrade Fixed issue that stopped some skins from being upgraded to newer versions Fixed issue that randomly showed an unexpected error during us...WordMat: WordMat for Mac: WordMat for Mac has a few limitations compared to the Windows version - Graph is not supported (Gnuplot, GeoGebra and Excel works) - Units are not supported yet (Coming up) The Mac version is yet as tested as the windows version.MFCMAPI: August 2014 Release: Build: 15.0.0.1042 Full release notes at SGriffin's blog. If you just want to run the MFCMAPI or MrMAPI, get the executables. If you want to debug them, get the symbol files and the source. The 64 bit builds will only work on a machine with Outlook 2010/2013 64 bit installed. All other machines should use the 32 bit builds, regardless of the operating system. Facebook BadgeEWSEditor: EwsEditor 1.10 Release: • Export and import of items as a full fidelity steam works - without proxy classes! - I used raw EWS POSTs. • Turned off word wrap for EWS request field in EWS POST windows. • Several windows with scrolling texts boxes were limiting content to 32k - I removed this restriction. • Split server timezone info off to separate menu item from the timezone info windows so that the timezone info window could be used without logging into a mailbox. • Lots of updates to the TimeZone window. • UserAgen...New Projectsballmon: ballmonExchange Database Recovery With and Without Log Files is Possible: This segments giving an overview of Exchange Server transaction log files. It describes process how users can recover their database with & without log filesFabs.Net: Ego tatmini ve gelisme amaçli yaptigim bir projedir.JacoChat: JacoChat is a simple chatting interface that uses my personal webserver as a "wall" for people to chat on.ManagedWin32: ManagedWin32 is a library that exposes the Win32 API to .NET applications.Open XML Extensions: The project provides additions to the Open XML SDK and related projects (e.g., PowerTools for Open XML), starting with MemoryStreams for Open XML Documents.orntic: Project for insurace companyTBOX: The Treasure Box Library: TBOX is a mutli-platform c library for unix, windows, mac, ios, android, etc. It includes asio, stream, container, algorithm, xml and other library modules.WeatherTS: Typescript weather application.?????@/????: ??????????????:????,????,????,???????,????????,??????:????????,?????! ?????????: ????????????????????,????????:??、??、???,?????????????????????! ????-??: ??????????????，????，???????????????。

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• debugging C++ when compared to debugging C

  - by benjamin button

  HI, I am normally a C programmer. I do regularly debug C programs on unix environment using tools like gdb,dbx. i have never done debugging of big applications of C++. Is that much different from how we debug in C. theoretically i am quite good in C++ but have never got a chance to debug C++ programs. I am also not sure about what kind of technical problems we face in c++ which will lead a developer to switch on the debugger for finding out the problem. what are the common issues we face in C++ which will make debugger to be started what are the challenges that a c programmer might face while debugging a C++ program? Is it difficult and complex when compared to C?

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• Using telerik radGrid - how to set the Date format for autogenerated column in edit mode

  - by Mark Breen

  Hello All, Using VS2008, and Telerik radGrid version 2010.1.519.35 I have a about 50 DNN modules using telerik radgrid and I need to display my dates in dd/mm/yy format. It is possible to do this easily in view mode, but when I switch to edit mode, it is more of a struggle. I can write a snippit of code to reformat the displayed date values to dd/mm/yy, but for inserts the user must enter mm/dd/yy. IOW, I need to change the culture of the form to en-GB culture. In my DotnetNuke App, I have made a change to the web.config, but it still assumes en-US format. I am not sure whether I need to set this at web.config level, page level or at the column within the control. I am struggling with this for a month or more and any help would be appriciated, thanks Mark Breen Ireland BMW R80GS 1987

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• Trying to install mysql then lots of brew doctor errors

  - by gdi2290

  I couldn't install mysql I get this brew install mysql Error: You must `brew link cmake' before mysql can be installed so then I type brew ink cmake Linking /usr/local/Cellar/cmake/2.8.8... Error: Could not symlink file: /usr/local/Cellar/cmake/2.8.8/share/doc/cmake /usr/local/share/doc is not writable. You should change its permissions. when I typed brew doctor I get this Error: Some directories in /usr/local/share/locale aren't writable. This can happen if you "sudo make install" software that isn't managed by Homebrew. If a brew tries to add locale information to one of these directories, then the install will fail during the link step. You should probably chown them: /usr/local/share/locale/ar /usr/local/share/locale/ar/LC_MESSAGES /usr/local/share/locale/be /usr/local/share/locale/be/LC_MESSAGES /usr/local/share/locale/bg /usr/local/share/locale/bg/LC_MESSAGES /usr/local/share/locale/bs /usr/local/share/locale/bs/LC_MESSAGES /usr/local/share/locale/ca /usr/local/share/locale/ca/LC_MESSAGES /usr/local/share/locale/cs /usr/local/share/locale/cs/LC_MESSAGES /usr/local/share/locale/da /usr/local/share/locale/da/LC_MESSAGES /usr/local/share/locale/de /usr/local/share/locale/de/LC_MESSAGES /usr/local/share/locale/de_AT /usr/local/share/locale/de_AT/LC_MESSAGES /usr/local/share/locale/de_CH /usr/local/share/locale/de_CH/LC_MESSAGES /usr/local/share/locale/de_DE /usr/local/share/locale/de_DE/LC_MESSAGES /usr/local/share/locale/el /usr/local/share/locale/el/LC_MESSAGES /usr/local/share/locale/en_AU /usr/local/share/locale/en_AU/LC_MESSAGES /usr/local/share/locale/en_CA /usr/local/share/locale/en_CA/LC_MESSAGES /usr/local/share/locale/en_GB /usr/local/share/locale/en_GB/LC_MESSAGES /usr/local/share/locale/eo /usr/local/share/locale/eo/LC_MESSAGES /usr/local/share/locale/es /usr/local/share/locale/es/LC_MESSAGES /usr/local/share/locale/es_ES /usr/local/share/locale/es_ES/LC_MESSAGES /usr/local/share/locale/es_PE /usr/local/share/locale/es_PE/LC_MESSAGES /usr/local/share/locale/et /usr/local/share/locale/et/LC_MESSAGES /usr/local/share/locale/fi /usr/local/share/locale/fi/LC_MESSAGES /usr/local/share/locale/fr /usr/local/share/locale/fr/LC_MESSAGES /usr/local/share/locale/fr_FR /usr/local/share/locale/fr_FR/LC_MESSAGES /usr/local/share/locale/gl /usr/local/share/locale/gl/LC_MESSAGES /usr/local/share/locale/he /usr/local/share/locale/he/LC_MESSAGES /usr/local/share/locale/hi /usr/local/share/locale/hi/LC_MESSAGES /usr/local/share/locale/hr /usr/local/share/locale/hr/LC_MESSAGES /usr/local/share/locale/hu /usr/local/share/locale/hu/LC_MESSAGES /usr/local/share/locale/hu_HU /usr/local/share/locale/hu_HU/LC_MESSAGES /usr/local/share/locale/id /usr/local/share/locale/id/LC_MESSAGES /usr/local/share/locale/it /usr/local/share/locale/it/LC_MESSAGES /usr/local/share/locale/ja /usr/local/share/locale/ja/LC_MESSAGES /usr/local/share/locale/ka /usr/local/share/locale/ka/LC_MESSAGES /usr/local/share/locale/ko /usr/local/share/locale/ko/LC_MESSAGES /usr/local/share/locale/lv /usr/local/share/locale/lv/LC_MESSAGES /usr/local/share/locale/mr /usr/local/share/locale/mr/LC_MESSAGES /usr/local/share/locale/nb /usr/local/share/locale/nb/LC_MESSAGES /usr/local/share/locale/nds /usr/local/share/locale/nds/LC_MESSAGES /usr/local/share/locale/nl /usr/local/share/locale/nl/LC_MESSAGES /usr/local/share/locale/nn /usr/local/share/locale/nn/LC_MESSAGES /usr/local/share/locale/oc /usr/local/share/locale/oc/LC_MESSAGES /usr/local/share/locale/pl /usr/local/share/locale/pl/LC_MESSAGES /usr/local/share/locale/pt /usr/local/share/locale/pt/LC_MESSAGES /usr/local/share/locale/pt_BR /usr/local/share/locale/pt_BR/LC_MESSAGES /usr/local/share/locale/pt_PT /usr/local/share/locale/pt_PT/LC_MESSAGES /usr/local/share/locale/ro /usr/local/share/locale/ro/LC_MESSAGES /usr/local/share/locale/ru /usr/local/share/locale/ru/LC_MESSAGES /usr/local/share/locale/sk /usr/local/share/locale/sk/LC_MESSAGES /usr/local/share/locale/sr /usr/local/share/locale/sr/LC_MESSAGES /usr/local/share/locale/sv /usr/local/share/locale/sv/LC_MESSAGES /usr/local/share/locale/ta /usr/local/share/locale/ta/LC_MESSAGES /usr/local/share/locale/te /usr/local/share/locale/te/LC_MESSAGES /usr/local/share/locale/tr /usr/local/share/locale/tr/LC_MESSAGES /usr/local/share/locale/uk /usr/local/share/locale/uk/LC_MESSAGES /usr/local/share/locale/vi /usr/local/share/locale/vi/LC_MESSAGES /usr/local/share/locale/zh_CN /usr/local/share/locale/zh_CN/LC_MESSAGES /usr/local/share/locale/zh_HK /usr/local/share/locale/zh_HK/LC_MESSAGES /usr/local/share/locale/zh_TW /usr/local/share/locale/zh_TW/LC_MESSAGES Error: The /usr/local directory is not writable. Even if this directory was writable when you installed Homebrew, other software may change permissions on this directory. Some versions of the "InstantOn" component of Airfoil are known to do this. You should probably change the ownership and permissions of /usr/local back to your user account. Error: "config" scripts exist outside your system or Homebrew directories. ./configure scripts often look for *-config scripts to determine if software packages are installed, and what additional flags to use when compiling and linking. Having additional scripts in your path can confuse software installed via Homebrew if the config script overrides a system or Homebrew provided script of the same name. We found the following "config" scripts: /opt/sm/pkg/active/bin/curl-config /opt/sm/pkg/active/bin/ncurses5-config /opt/sm/pkg/active/bin/ncursesw5-config /opt/sm/pkg/active/bin/pkg-config /opt/sm/pkg/active/bin/xml2-config /opt/sm/pkg/active/bin/xslt-config Error: gettext was detected in your PREFIX. The gettext provided by Homebrew is "keg-only", meaning it does not get linked into your PREFIX by default. If you brew link gettext then a large number of brews that don't otherwise have a depends_on 'gettext' will pick up gettext anyway during the ./configure step. If you have a non-Homebrew provided gettext, other problems will happen especially if it wasn't compiled with the proper architectures. Error: Unbrewed dylibs were found in /usr/local/lib. If you didn't put them there on purpose they could cause problems when building Homebrew formulae, and may need to be deleted. Unexpected dylibs: /usr/local/lib/libboost_filesystem-mt.dylib /usr/local/lib/libboost_serialization-mt.dylib /usr/local/lib/libboost_system-mt.dylib /usr/local/lib/libencfs.6.dylib /usr/local/lib/libintl.8.dylib /usr/local/lib/libmacfuse_i32.2.dylib /usr/local/lib/libmacfuse_i64.2.dylib /usr/local/lib/libosxfuse_i32.2.dylib /usr/local/lib/libosxfuse_i64.2.dylib /usr/local/lib/librlog.5.0.0.dylib Error: Unbrewed .la files were found in /usr/local/lib. If you didn't put them there on purpose they could cause problems when building Homebrew formulae, and may need to be deleted. Unexpected .la files: /usr/local/lib/libosxfuse_i32.la /usr/local/lib/libosxfuse_i64.la Error: Unbrewed .pc files were found in /usr/local/lib/pkgconfig. If you didn't put them there on purpose they could cause problems when building Homebrew formulae, and may need to be deleted. Unexpected .pc files: /usr/local/lib/pkgconfig/osxfuse.pc Error: You have unlinked kegs in your Cellar Leaving kegs unlinked can lead to build-trouble and cause brews that depend on those kegs to fail to run properly once built. cmake Error: Your pkg-config is not checking "/usr/X11/lib/pkgconfig" for packages. Earlier versions of the pkg-config formula did not add this path to the search path, which means that other formula may not be able to find certain dependencies. To resolve this issue, re-brew pkg-config with: brew rm pkg-config && brew install pkg-config Error: You have a non-Homebrew 'pkg-config' in your PATH: /opt/sm/pkg/active/bin/pkg-config ./configure may have problems finding brew-installed packages using this other pkg-config. Error: Your Xcode is configured with an invalid path. You should change it to the correct path. Please note that there is no correct path at this time if you have only installed the Command Line Tools for Xcode. If your Xcode is pre-4.3 or you installed the whole of Xcode 4.3 then one of these is (probably) what you want: sudo xcode-select -switch /Developer sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer DO NOT SET / OR EVERYTHING BREAKS!

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• AJAX Return Problem from data sent via jQuery.ajax

  - by Anthony Garand

  I am trying to receive a json object back from php after sending data to the php file from the js file. All I get is undefined. Here are the contents of the php and js file. data.php <?php $action = $_GET['user']; $data = array( "first_name" = "Anthony", "last_name" = "Garand", "email" = "[email protected]", "password" = "changeme"); switch ($action) { case '[email protected]': echo $_GET['callback'] . '('. json_encode($data) . ');'; break; } ? core.js $(document).ready(function(){ $.ajax({ url: "data.php", data: {"user":"[email protected]"}, context: document.body, data: "jsonp", success: function(data){renderData(data);} }); }); function renderData(data) { document.write(data.first_name); }

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• iPhone SDK NSString To NSDate

  - by disp

  I got a string from parsing a XML file which looks like this: Fri, 09 Apr 2010 00:00:45 +0200 and the corresponding pattern should be this "EEE, dd MMM yyyy HH:mm:ss ZZ", but I get (null). This is my code: NSString *dateString = @"Fri, 09 Apr 2010 00:00:45 +0200"; NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateFormat:@"EEE, dd MMM yyyy HH:mm:ss ZZ"]; NSDate *date = [dateFormatter dateFromString:dateString]; NSLog(@"date:%@",date); // result date:(null) Edit: This works for me now, I had to switch to en-US locale: NSLocale* usLocale = [[NSLocale alloc] initWithLocaleIdentifier:@"en-US"]; NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setLocale:usLocale]; [dateFormatter setDateFormat:@"EEE, dd MMM yyyy HH:mm:ss ZZ"]; NSDate *date = [dateFormatter dateFromString:dateString];

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• WPF databind Image.Source in MVVM

  - by BrettRobi

  I'm using MVVM and am trying to databind the Source property of Image to my ViewModel in such a way that I can change the icon on the fly. What is the best pattern to follow for this? I still have the flexibility to change my ViewModel to suit, but I don't know where to start in either the xaml or ViewModel. To be clear, I don't want my ViewModel to know about the specific images (that's for the View to know), just the state that triggers different images. For now I have just two states, lets say Red and Green. Should I create an Enum property or a bool? And then how do I databind to switch the image source?

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• Android: onKeyDown() problem

  - by niko

  Hi, I would like to create a photo/video capture application. I have created a CaptureView class which extends SurfaceView and placed it in the main form. The main form's activity has onCreateOptionsMenu() method which creates a menu. The menu worked fine but then I tried to implement a method onKeyDown: @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if(event.getAction() == KeyEvent.ACTION_DOWN) { switch(keyCode) { case KeyEvent.KEYCODE_CAMERA: videoPreview.TakePicture(); return true; } } return super.onKeyDown(keyCode, event); } The menu doesn't appear anymore and the method doesn't catch onKeyDown event. Does anyone know what could be the reason for this issue? Thanks!

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• What's the best C# recommendation engine or framework?

  - by cDima

  Is there anyway to use the examples for the "My Media" Microsoft research project? My Media is a "dynamic personalization and recommendation software framework toolkit" ( http://www.mymediaproject.org ), but out of the box it doesn't provide a sample database (only a LINQ-to-SQL .dbml schema), I don't believe it will be easy to re-create by hand. I was hoping to understand recommendation engines and machine learning with this C#/.Net as a testbed, but without a simple quick start or db it seems impractical. Any suggestions? (I guess it's time to switch to Java with Apache's Mahout, Weka or something similar?)

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• EF4, self tracking, repository pattern, SQL Server 2008 AND SQL Server Compact

  - by Darren

  Hi, I am creating a project using Entity Frameworks 4 and self tracking entities. I want to be able to either get the data from a sql server 2008 database or from sql server compact database (with the switch being in the config file). I am using the repository pattern and I will have the self tracking entities sitting in a separate assembly. Do I need two edmx files? If so, how do I generate only one set of STE's in the separate assembly? Also do I need to generate two context classes as well? I am unsure of the plumbing for all this. Can anyone help? Darren I forgot to add that the two databases will be identical and that the compact version is for offline usage.

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• Creating a constant Dictionary in C#

  - by David Schmitt

  What is the most efficient way to create a constant (never changes at runtime) mapping of strings to ints? I've tried using a const Dictionary, but that didn't work out. I could implement a immutable wrapper with appropriate semantics, but that still doesn't seem totally right. For those who have asked, I'm implementing IDataErrorInfo in a generated class and am looking for a way to make the columnName lookup into my array of descriptors. I wasn't aware (typo when testing! d'oh!) that switch accepts strings, so that's what I'm gonna use. Thanks!

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• Multiple Silverlight Unit Test Projects in Solution

  - by IUnknown

  I am building out a number of Silverlight 4.0 libraries that are part of the same solution. I like to break them into separate projects and have a Unit Test project for each: SolutionX -LibraryProject1 ---Class1.cs ---Class2.cs -LibraryProject1.Test ---Tests1.cs ---Tests2.cs -LibraryProject2 ---Class1.cs ---Class2.cs ---CLass3.cs -LibraryProject2.Test ---Tests1.cs ---Tests2.cs ---Tests3.cs -LibraryProject3 ---Class1.cs -LibraryProject3.Test ---Tests1.cs This works great when using VS regular test projects and infrastructure because I can create and execute list of test that are aggregated from each Test project. But with the Silverlight Unit Test Framework since the Silverlight Unit Test Project must be the "start up project" I cannot figure how to run a collection of tests from each test project in one go. I have to run each separately then switch the starting project each time. I would prefer to avoid create complex build scripts or build definitions - is there a way to run all the tests at once? -Thanks

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• Android TabHost: update tabs from tab's activity

  - by joshuadlillie

  I have a TabActivity and am going to have 3 or 4 tabs. In TabA, I would like to have an ExpandableListView, which will list products. I would like TabC to act as a sort of "shopping cart", probably with a ListView of itself. So, my question is: is there a way to interact with the TabHost from the Activity? I would like to be able to click a button inside of TabA and have it update and switch to TabC. Is this possible? Can I get the Tab's activities call it's parents methods?

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• Component based game engine design

  - by a_m0d

  I have been looking at game engine design (specifically focused on 2d game engines, but also applicable to 3d games), and am interested in some information on how to go about it. I have heard that many engines are moving to a component based design nowadays rather than the traditional deep-object hierarchy. Do you know of any good links with information on how these sorts of designs are often implemented? I have seen evolve your hierarchy, but I can't really find many more with detailed information (most of them just seem to say "use components rather than a hierarchy" but I have found that it takes a bit of effort to switch my thinking between the two models). Any good links or information on this would be appreciated, and even books, although links and detailed answers here would be preferred.

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• Autorotate UINavigationController based Application in IPhoneOS 3.0

  - by Shoaibi

  I have an application which have code like: window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; // UIWindow *window; viewController = [TopicsViewController new]; //TopicsViewController *viewController; //This is a UITableViewController navigationController = [UINavigationController new]; // UINavigationController *navigationController; UIImageView *background = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"background.png"]]; [self.navigationController.view addSubview:background]; [self.navigationController.view sendSubviewToBack:background]; [navigationController pushViewController:viewController animated:YES]; [window addSubview:[navigationController view]]; [window makeKeyAndVisible]; Basically i am using UINavigationController and then push UITableViewController or sometime a UIViewController. UIViewController contain elements such as UITextView, UIImage, UIScrollView. Problem is i have been trying to make this application respond to iphone rotation e.g. when held in landscape, application should switch to landscape and vice versa, but nothing works so far.

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• C# Conditional Compilation and framework targets

  - by McKAMEY

  There are a few minor places where code for my project may be able to be drastically improved if the target framework were a newer version. I'd like to be able to better leverage conditional compilation in C# to switch these as needed. Something like: #if NET_40 using FooXX = Foo40; #elif NET_35 using FooXX = Foo35; #else using FooXX = Foo20; #endif Do these symbols come for free? Do I need to inject these symbols as part of the project configuration? Seems easy enough to do since I'll know which framework is being targeted from msbuild. I think I've seen that NET_40 symbol isn't defined? If so I think I could do this? #if !NET_35 && !NET_20 #define NET_40 #endif Or do I need to define it in the msbuild command: /p:DefineConstants="NET_40"

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• Is git / tortoisegit ready to replace snv / tortoisesvn on windows?

  - by opensas

  I've been using svn thru tortoise and svn:// protocol on windows for a couple of years and I'm pretty comfortable with it. Nevertheless tThere are a couple of features I'd like to hove, mainly shelves (something like local commits) and easier branch / merge support. From my experience, svn / tortoise on windows is rock solid stuff. I was wondering if git / tortoisegit has achieved the level of maturity and stability so as to be a replacement for svn on windows. Any experience about it? saludos sas some links: a similar question, only a bit outdated http://stackoverflow.com/questions/1500400/is-tortoisegit-ready-for-prime-time-yet http://stackoverflow.com/questions/931105/tortoisegit-tortoisebzr-tortoisehg-are-any-solid-enough-to-switch-from-tortois (well, it seems like mercurial could be an option) http://code.google.com/p/tortoisegit/ http://www.syntevo.com/smartgit/index.html (free of charge for non-commercial use or to active members of the Open Source community)

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• How to change VS2010 Add Reference box filter ?

  - by rook

  I'm getting used to the new IDE (it's vc# express), but the first contact is somewhat confusing. When I open the Add Reference dialog and switch to the .NET tab, a label above the assembly list states: "Filtered to:.NET Framework 4". And it's true - I can reference .NET 4.0 assemblies only plus things like XNA 3.1. However I can't see older assemblies i.e. Managed DirectX libs, which are obviously installed on my computer as there was no trouble with adding a ref to them in vc#08. What is this? How to change the filter? The label is read-only. These sound like dull guy's questions, but I'm out of lack of finding an answer and there is no intuitive solution. Thanks in advance.

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• UITableView custom popping

  - by ckrames1234

  Okay, I made an app that has a list of items as a main view, and when you select an item it pushes a detail view controller. In this detail view controller you can switch between items. I want to be able to push a view, scroll a few items, and pop the view as if the current item was initially selected. I want to push a view, and then when i pop it, i want it to look like a different view was initially pushed. Here's a rough image, because its hard to explain in writing: http://96.248.81.29:83/misc/PushPopSituation.png (Thats a fixed IP, its not going anywhere) If anyone knows how I could do something like this, it would be a great help to me.

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• jQuery autocomplete disabled makes autocomplete partially transparent, not disabled

  - by Ryan Giglio

  I'm using the jQuery UI's "autocomplete" function on a search on my site. When you change a radio button from 'area search" to "name search" I want it to disable the autocomplete, and re-enable it when you switch back. However, when you disable the autocomplete it doesn't hide the dropdown, it just dims it to 20% opacity or so. Here's my javascript: var allFields = new Array(<?php echo $allFields ?>); $(document).ready(function() { if ($("input[name='searchType']:checked").val() == 'areaCode') { $("#siteSearch").autocomplete({ source: allFields, minLength: 2 }); } $("input[name='searchType']").change(function(){ if ($("input[name='searchType']:checked").val() == 'areaCode') { $( "#siteSearch" ).autocomplete( "option", "disabled", false ); alert("enabled"); } else { $( "#siteSearch" ).autocomplete( "option", "disabled", true ); alert("disabled"); } }); }); You can see it happening at http://crewinyourcode.com First you have to chose an area code to search, and then you can see the issue.

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• Clickonce intranet application trust

  - by Mark

  Hi, we have a VSTO outlook add-in we'd like to silently deploy to everyone via AD. I'm signing the App with a "Code signing" certificate (requested certmgr from AD). If I add this certificate to my Trusted Publishers, then I can silently install the signed app via the VSTOInstaller.exe (with the /S switch). We don't want to have to install my certificate as a trusted publisher on everyone's machine - we'd like to be able to say that any code signed by a certificate issued within our AD is trusted. Is there some way to do this?

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