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• Best design to create dynamic set of questions(controls ) in silverlight web application?

  - by Sukesh

  I have around 15 templates (this will grow) and each template will have around 10-15 questions. Each question can have answers in different format like text box, list box, dropdown, radio button etc. I need to show one template in a page, at a time based on the input I am getting. What would be the best design approach for this? Put questions data in database and Create dynamic control? Putting in xml and display using xslt? Creating static set of templates? Or any other approach? I don't have too much time to do this. I am going to use Silverlight for this.

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• Is Transport security a bad practice for the WCF service over the Internet?

  - by Sergey

  Hello, I have a WCF service accessible over the Internet. It has wsHttpBinding binding and message security mode with username credentials to authenticate clients. The msdn says that we should use message security for the Internet scenarios, because it provides end-to-end security instead of point-to-point security as Transport security has. What if i use transport security for the wcf service over the Internet? Is it a bad practice? Could my data be seen by malicious users? Thanks, Sergey

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• What programming technique / practice done by you was ahead of its time?

  - by Binoj Antony

  I once built a very good web application in ASP (classic) back in 2001 and extensively used XmlHttpRequest object in it. (I was lucky that the clients were only using IE, and only IE supported this object at that time). Then later when people started talking about AJAX in 2005, It felt good to have used something ahead (or early) of its time. Well, maybe this does not qualify to be listed as something done ahead of its time. Which programming technology/technique/practice have you done that was ahead of this time. One story per answer please. The title for this question taken from an opposite question here.

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• JQuery. Hide elements before they rendered. Best practice

  - by Andrew Florko

  Hello everybody, I want to generate html layout with areas (divs, spans) that can be shown/hidden conditionally. These areas are hidden by default. If I call .hide method with jquery on document.ready these areas may blink (browsers render partially loaded documents). So I apply "display: none" style in html layout. I wonder what is the best practice to avoid blinking, because applying "display:none" breaks incapsulation rule - I know what jquery does with hide/show and use it. If jquery's hiding/showing implementation will change one day, I'll get the whole site unworkable. Thank you in advance

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• Javascript : assign variable in if condition statement, good practice or not?

  - by Michael Mao

  Hi all: I moved one years ago from classic OO languages such like Java to Javascript. The following code is definitely not recommended (or even not correct) in Java: if(dayNumber = getClickedDayNumber(dayInfo)) { alert("day number found"); } function getClickedDayNumber(dayInfo) { dayNumber = dayInfo.indexOf("fc-day"); if(dayNumber != -1) //substring found { //normally any calendar month consists of "40" days, so this will definitely pick up its day number. return parseInt(dayInfo.substring(dayNumber+6, dayNumber+8)); } else return false; } Basically I just found out that I can assign a variable to a value in an if condition statement, and immediately check the assigned value as if it is boolean. For a safer bet, I usually separate that into two lines of code, assign first then check the variable, but now that I found this, I am just wondering whether is it good practice or not in the eyes of experienced javascript developers? Many thanks in advance.

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• How to add sort function for the table via ajax in ASP.NET MVC?What is the best practice.

  - by Eric Wang

  How to add sort function for the table via ajax in ASP.NET MVC?What is the best practice. If not use Ajax, it maybe much easier, just return View, but if use AJAX, what data structure should return?I just use Json to return the data, but i found each JSON data model return to the client browser, the JS have to use different code to parse it, remove the originally table rows, add the new data rows(because the column is different) etc. It make me crazy, is there any better way to do that? Thank you for any advice.

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• Switching Android SensorManager speed. What's a good practice?

  - by Johnson Tey

  Hello stackoverflow! I'm interested to switch between different sensor orientation speeds over time to optimize the program ie.. battery life. The routine may be called very often. I'm looking for the right practice. sensorManager = (SensorManager)getSystemService(Context.SENSOR_SERVICE); sensorManager.registerListener(sensorListener, SensorManager.SENSOR_ORIENTATION, SensorManager.SENSOR_DELAY_FASTEST); //... 1) unregister then register new speed OR //... 2) register new speed without registering sensorManager.unregisterListener(sensorListener); Should I unregister the listener and then register with SensorManager.SENSOR_DELAY_NORMAL OR Should I not bother unregistering the listener? thanks.

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• Is is bad practice to put a period in a URI path?

  - by saille

  I am designing a REST API for a web application. I want to clearly version the API so that the interface can be changed in future without breaking existing services. So in my v1.0 API I want to clearly identify it as the v1.0 API, leaving me the freedom to release a future v1.1 version with breaking changes. My question is, would a period in the path component of a URI be bad practice? eg. Is there any good reason not to use http://mysite.com/myapi/v1.0/services as a URI to my service?

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• Is it bad practice to change state inside of an if statement?

  - by Benjamin

  I wrote some code that looks similar to the following: String SKIP_FIRST = "foo"; String SKIP_SECOND = "foo/bar"; int skipFooBarIndex(String[] list){ int index; if (list.length >= (index = 1) && list[0].equals(SKIP_FIRST) || list.length >= (index = 2) && (list[0] + "/" + list[1]).equals(SKIP_SECOND)){ return index; } return 0; } String[] myArray = "foo/bar/apples/peaches/cherries".split("/"); print(skipFooBarIndex(myArray); This changes state inside of the if statement by assigning index. However, my coworkers disliked this very much. Is this a harmful practice? Is there any reason to do it?

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• Is it a good practice to pass struct object as parameter to a function in c++?

  - by tsubasa

  I tried an example live below: typedef struct point { int x; int y; } point; void cp(point p) { cout<<p.x<<endl; cout<<p.y<<endl; } int main() { point p1; p1.x=1; p1.y=2; cp(p1); } The result thats printed out is: 1 2 which is what I expected. My question is: Does parameter p get the full copy of object p1? If so, I wonder if this is a good practice? (I assumed when the struct gets big in size, this will create a lot of copy overhead).

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• What Can A 'TreeDict' (Or Treemap) Be Used For In Practice?

  - by Seun Osewa

  I'm developing a 'TreeDict' class in Python. This is a basically a dict that allows you to retrieve its key-value pairs in sorted order, just like the Treemap collection class in Java. I've implemented some functionality based on the way unique indexes in relational databases can be used, e.g. functions to let you retrieve values corresponding to a range of keys, keys greater than, less than or equal to a particular value in sorted order, strings or tuples that have a specific prefix in sorted order, etc. Unfortunately, I can't think of any real life problem that will require a class like this. I suspect that the reason we don't have sorted dicts in Python is that in practice they aren't required often enough to be worth it, but I want to be proved wrong. Can you think of any specific applications of a 'TreeDict'? Any real life problem that would be best solved by this data structure? I just want to know for sure whether this is worth it.

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• What is a good practice for handling SQL connections within a WCF call?

  - by Rising Star

  Suppose I want to create a (stateless) WCF service with three methods exposed on an endpoint: performSqlOperationA(), performSqlOperationB(), and performSqlOperationC(). Each method inserts data into a SQL database. The way I've seen things done at my office, each method would begin with code to initialize a SqlConnection object. Each method would end with code to safely dispose it. What is a good practice for coding these WCF methods so that the SqlConnection object is initialized and disposed in each method without having to do these things in each method? I know that I can have the connection initialized in the constructor for the class for the WCF methods, but I don't know about disposing it... The calls cannot be wrapped in a using block. One solution I'm familiar with is PostSharp, which allows me to set an attribute which causes specific code to automatically run at the beginning and end of each method call, but it would be greatly preferable to do this with only the .net framework.

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• is putting N in front of strings in scripts considered a "best practice"?

  - by jcollum

  Let's say I have a table that has a varchar field. If I do an insert like this: INSERT MyTable SELECT N'the string goes here' Is there any fundamental difference between that and: INSERT MyTable SELECT 'the string goes here' My understanding was that you'd only have a problem if the string contained a Unicode character and the target column wasn't unicode. Other than that, SQL deals with it just fine and converts the string with the N'' into a varchar field (basically ignores the N). I was under the impression that N in front of strings was a good practice, but I'm unable to find any discussion of it that I'd consider definitive. Title may need improvement, feel free.

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• Is it a good practice to create a reference to application context and use it anywhere?

  - by kknight

  I have to use context in many places of my code such as database operations, preference operations, etc. I don't want to pass in context for every method. Is it a good practice to create a reference to application context at the main Activity and use it anywhere such as database operations? So, I don't need some many context in method parameters, and the code can avoid position memory leak due to use of Activity Context. public class MainActivity extends Activity { public static Context s_appContext; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); s_appContext = this.getApplicationContext();

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• Is it good practice to avoid declaring a pointer to BOOL type in objective C?

  - by Krishnan

  I read this question in stackoverflow. The excerpt answer provided by bbum is below: The problem isn't the assignment, it is much more likely that you declared your instance variable to be BOOL *initialBroadcast;. There is no reason to declare the instance variable to be a pointer (at least not unless you really do need a C array of BOOLs).. Remove the * from the declaration. 1.Is there anything wrong in using a pointer variable even when I do not have to maintain an array of BOOLs? 2.I think even if avoiding them a good practice, it is not specific to objective-C and applies to all programming languages which has pointers. Please answer my questions.

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• Is there a best practice for maintaining history in a database?

  - by Pete

  I don't do database work that often so this is totally unfamiliar territory for me. I have a table with a bunch of records that users can update. However, I now want to keep a history of their changes just in case they want to rollback. Rollback in this case is not the db rollback but more like revert changes two weeks later when they realized that they made a mistake. The distinction being that I can't have a transaction do the job. Is the current practice to use a separate table, or just a flag in the current table? It's a small database, 5 tables each with < 6 columns, < 1000 rows total.

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• Python: Best practice for including a version number in an app?

  - by Ben

  I have a PyQt application that reads and writes data files. I am including a 'version number' in each file written. This is a simple number similar to: 1.2 or something (major and minor versions). I am doing this so that I can change the format of these data files in future versions and then still correctly parse them simply by checking to see what the version is inside the file. My question is what is the best practice for keeping this number stored inside the app itself. I.e. do I just hard-code the app version number into the class that is responsible for reading and writing files? Or should I have some sort of object/variable stored at the top-level of the app and somehow access it from the class responsible for reading and writing these files. If the latter, how do I store it and how do I access it? Thanks.

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• Best practice for C++ audio capture API under Linux?

  - by braddock

  I need to create a C++ application with a simple audio recording from microphone functionality. I can't say that there aren't enough audio APIs to do this! Pulse, ALSA, /dev/dsp, OpenAL, etc. My question is what is the current "Best practice" API? Pulse seems supported by most modern distros, but seems almost devoid of documentation. Will OpenAL be supported across different distros, or is it too obscure? Have I missed any? Is there not a simple answer? thanks!

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• android localization: Is it a good practice to have only needed resource to put in localized folder?

  - by MobileDev123

  Hi, My application has 4 languages in it. However only one module needs to be localized out of 5, This module has 4 layout files and some images, remaining files can be there in default layout folder and drawable folders. My question is : is it good practice to put only needed files in localization folders, if I leave other files in its respective folders and don't copy them in translation folders, does my application throw NullPointerException when my application runs in other language? and Does android market have any size limit? (Also being a BB developer,AFAIK they do not allow OTA, if the application size grows more than 3 mb) [In case i need to copy the layout and image files]. Note about NullPointerException : it throws in string if you omit some string in localization and application runs in that particular locale. Thanks

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• Is it bad practice to select upstream servers based upon the HTTP method?

  - by PartlyCloudy

  I'm wondering if it is bad practice to have a reverse proxy that selects the upstream server depending on the HTTP method used? The background is that I have an abitrary web server that handles POST requests with some logic behind. The same resources also contain static content, that can be retrieved using GET. After some benchmarking I realized that nginx would handle the static content way faster than my abitrary web server doing this. I checked the option to forward incoming requests internally using nginx, which is feasible. But this would lead to the fact that different servers would serve a distinct resource, only depending on issuing a GET or POST, including different header fields.

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• Is it good practice to export variables in Perl?

  - by gvkv

  I'm finding it very convenient to pass configuration and other data that is read or calculated once but then used many times throughout a program by using Perl's use mechanism. I'm doing this by exporting a hash into the caller's namespace. For example: package Myconfiguration; my %config; sub import { my $callpkg = caller(0); my $expsym = $_[1]; configure() unless %config; *{"$callpkg\::$expsym"} = \%config; } and then in other modules: use MyConfiguration (loc_config_sym); if ( $loc_config_sym{paramater} ) { # ... do stuff ... } However, I'm not sure about this as a best practice. Is it better to add a method that returns a hash ref with the data? Something else?

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• What is a 'best practice' backup plan for a website?

  - by HollerTrain

  I have a website which is very large and has a large user-base. I am trying to think of a 'best practice' way to create a back up or mirror website, so if something happens on domain.com, I can quickly point the site to backup.domain.com via 401 redirect. This would give me time to troubleshoot domain.com while everyone is viewing backup.domain.com and not knowing the difference. Is my method the ideal method, or have you enacted better methods to creating a backup site? I don't want to have the site go down and then get yelled at every minute while I'm trying to fix it. Ideally I would just 'flip the switch' and it would redirect the user to a backup. Any insight would be greatly appreciated.

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• Why is this consider bad practice? or is it? (ASP.Net)

  - by user318573

  Would this code be considered bad practice: <div id="sidebar"> <% =DisplayMeetings(12) %> </div> This is a snippet of code from the default.aspx of a small web app I have worked on. It works perfectly well, runs very fast, but as always, I am aware of the fact that just because it works, doesn't mean it is OK. Basically, the DisplayMeetings subroutine outputs a bunch of formatted HTML (an unordered list actually), with no formatting, just the requisite html, and then my CSS performs all the necessary formatting. The data for generating the list comes from an SQL server database (the parameter controls how many rows to return) and I am using stored procedures and datareader for fast access. This keeps my front-end extraordinary simple and clean, imho, and lets me do all the work in VB or C# in a separate module. I could of course use a databound repeater (and probably 6 or more other methods) of accomplishing the same thing, but are they any better? Other than loosing the design-time features of VS2010?

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• What are some good practice assignments for learning Java?

  - by HW

  Hello, I am a computer science in my Student Second year. I already know a good deal about C++, Data Structures, File Structures, OOP, etc. I decided to learn Java. I have read couple of books but I know that it takes practice to master any Programming language. I was wondering if anyone knew of some assignments or problems that helped them become good at programming. I am looking for something more challenging than "hello world"s and "3+2=5"s exercises. Thanks, ~HW

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• Is it poor practice to identify objects via an enumeration property, instead of using GetType()?

  - by James

  I have a collection of objects that all implement one (custom) interface: IAuditEvent. Each object can be stored in a database and a unique numeric id is used for each object type. The method that stores the objects loops around a List<IAuditEvent>, so it needs to know the specific type of each object in order to store the correct numeric id. Is it poor practice to have an enumeration property on IAuditEvent so that each object can identify itself with a unique enumeration value? I can see that the simplest solution would be to write a method that translates a Type into an integer, but what if I need an enumeration of audit events for another purpose? Would it still be wrong to have my enumeration property on IAuditEvent?

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