Search Results

Search found 4050 results on 162 pages for 'requirements'.

Page 128/162 | < Previous Page | 124 125 126 127 128 129 130 131 132 133 134 135  | Next Page >

  • How can I display multiple django modelformset forms in a grouped fieldsets?

    - by JT
    I have a problem with needing to provide multiple model backed forms on the same page. I understand how to do this with single forms, i.e. just create both the forms call them something different then use the appropriate names in the template. Now how exactly do you expand that solution to work with modelformsets? The wrinkle, of course, is that each 'form' must be rendered together in the appropriate fieldset. For example I want my template to produce something like this: <fieldset> <label for="id_base-0-desc">Home Base Description:</label> <input id="id_base-0-desc" type="text" name="base-0-desc" maxlength="100" /> <label for="id_likes-0-icecream">Want ice cream?</label> <input type="checkbox" name="likes-0-icecream" id="id_likes-0-icecream" /> </fieldset> <fieldset> <label for="id_base-1-desc">Home Base Description:</label> <input id="id_base-1-desc" type="text" name="base-1-desc" maxlength="100" /> <label for="id_likes-1-icecream">Want ice cream?</label> <input type="checkbox" name="likes-1-icecream" id="id_likes-1-icecream" /> </fieldset> I am using a loop like this to process the results (after form validation) base_models = base_formset.save(commit=False) like_models = like_formset.save(commit=False) for base_model, likes_model in map(None, base_models, likes_models): which works as I'd expect (I'm using map because the # of forms can be different). The problem is that I can't figure out a way to do the same thing with the templating engine. The system does work if I layout all the base models together then all the likes models after wards, but it doesn't meet the layout requirements. EDIT: Updated the problem statement to be more clear about what exactly I'm processing (I'm processing models not forms in the for loop)

    Read the article

  • Find position of a node within a nodeset using xpath

    - by Phil Nash
    After playing around with position() in vain I was googling around for a solution and arrived at this older stackoverflow question which almost describes my problem. The difference is that the nodeset I want the position within is dynamic, rather than a contiguous section of the document. To illustrate I'll modify the example from the linked question to match my requirements. Note that each <b> element is within a different <a> element. This is the critical bit. <root <a <bzyx</b </a <a <bwvu</b </a <a <btsr</b </a <a <bqpo</b </a </root Now if I queried, using XPath for a/b I'd get a nodeset of the four <b> nodes. I want to then find the position within that nodeset of the node that contains the string 'tsr'. The solution in the other post breaks down here: count(a/b[.='tsr']/preceding-sibling::*)+1 returns 1 because preceding-sibling is navigating the document rather than the context node-set. Is it possible to work within the context nodeset?

    Read the article

  • Problem with Silverlight 3 projects in Web Developer Express 2008

    - by MNT
    Hi, I have a strange problem when working with silverlight 3 projects in Web Developer Express 2008. Mainly, I cannot show the design view of a XAML file. Also the XAML files (markup) are shown as plain text files (No Syntax coloring & No Intellisense). However I can write an application that is compiled and run successfully. I have the following installed on my machine: Windows XP SP3 Visual Web Developer Express 2008 SP1 & .NET 3.5 SP1 SL3 Requirements I had a few problems while installing SL3 SDK & Tool for VS. I repeated the process many times until the installation succeeded. The main problem was in the "SL Tools for VS" installation where I used to get an error in the middle. My workaround was to extract the MSI file and manually run the VWDxxx installer from the extracted files. Is this the cause of the problem? Kindly advise as it's impractical to work w/o Intellisense. Thnak you

    Read the article

  • C#/Java: Proper Implementation of CompareTo when Equals tests reference identity

    - by Paul A Jungwirth
    I believe this question applies equally well to C# as to Java, because both require that {c,C}ompareTo be consistent with {e,E}quals: Suppose I want my equals() method to be the same as a reference check, i.e.: public bool equals(Object o) { return this == o; } In that case, how do I implement compareTo(Object o) (or its generic equivalent)? Part of it is easy, but I'm not sure about the other part: public int compareTo(Object o) { if (! (o instanceof MyClass)) return false; MyClass other = (MyClass)o; if (this == other) { return 0; } else { int c = foo.CompareTo(other.foo) if (c == 0) { // what here? } else { return c; } } } I can't just blindly return 1 or -1, because the solution should adhere to the normal requirements of compareTo. I can check all the instance fields, but if they are all equal, I'd still like compareTo to return a value other than 0. It should be true that a.compareTo(b) == -(b.compareTo(a)), and the ordering should stay consistent as long as the objects' state doesn't change. I don't care about ordering across invocations of the virtual machine, however. This makes me think that I could use something like memory address, if I could get at it. Then again, maybe that won't work, because the Garbage Collector could decide to move my objects around. hashCode is another idea, but I'd like something that will be always unique, not just mostly unique. Any ideas?

    Read the article

  • best way to set up a VM for development (regarding performance)

    - by raticulin
    I am trying to set up a clean vm I will use in many of my devs. Hopefully I will use it many times and for a long time, so I want to get it right and set it up so performance is as good as possible. I have searched for a list of things to do, but strangely found only older posts, and none here. My requirements are: My host is Vista 32b, and guest is Windows2008 64b, using Vmware Workstation. The VM should also be able to run on a Vmware ESX I cannot move to other products (VirtualBox etc), but info about performance of each one is welcomed for reference. Anyway I guess most advices would apply to other OSs and other VM products. I need network connectivity to my LAN Guest will run many java processes, a DB and perform lots of file I/O What I have found so far is: HOWTO: Squeeze Every Last Drop of Performance Out of Your Virtual PCs: it's and old post, and about Virtual PC, but I guess most things still apply (and also apply to vmware). I guess it makes a difference to disable all unnecessary services, but the ones mentioned in 1 seem like too few, I specifically always disable Windows Search. Any other service I should disable?

    Read the article

  • Alerting for incorrect cell values

    - by Allan
    My problem: I have two ranges R16 and R01. These ranges were set up by swiping each range and then renaming them in the upper left panel of the sheet. Each range requires users to fill in each cell with a value. R16 requires users to enter a number of 0 through 5. The range R01 requires a value of 0 or 1 to be entered. NO cell can be left blank in any cell within these two ranges. These ranges and requirements are specific to this sheet only. It would be nice if at the time of user entering a number, an error message appeared like [invalid entry] if the value inputted was outside parameters set. For example, in R16, if someone entered 12 or -1 they would be alerted. Finally when the user presses a button on the page to use these values in a separate process, it is essential to check that no cell is left blank. I am trying to find a way to halt the running of the marco (via the button) if these parameters above are not met. Thank you

    Read the article

  • Handling incremental Data Modeling Changes in Functional Programming

    - by Adam Gent
    Most of the problems I have to solve in my job as a developer have to do with data modeling. For example in a OOP Web Application world I often have to change the data properties that are in a object to meet new requirements. If I'm lucky I don't even need to programmatically add new "behavior" code (functions,methods). Instead I can declarative add validation and even UI options by annotating the property (Java). In Functional Programming it seems that adding new data properties requires lots of code changes because of pattern matching and data constructors (Haskell, ML). How do I minimize this problem? This seems to be a recognized problem as Xavier Leroy states nicely on page 24 of "Objects and Classes vs. Modules" - To summarize for those that don't have a PostScript viewer it basically says FP languages are better than OOP languages for adding new behavior over data objects but OOP languages are better for adding new data objects/properties. Are there any design pattern used in FP languages to help mitigate this problem? I have read Phillip Wadler's recommendation of using Monads to help this modularity problem but I'm not sure I understand how?

    Read the article

  • Dealing with Time Zones

    - by RavIncredible
    Hi All, I need some guidance with one of my project requirements, I am developing an application which has to deal with various time zones. Scenario: User 1 is from India, so his time zone would be GMT+05:30 User 2 is from UK, so his time zone would be GMT+01:00 If the User 1 sends a message to User 2, I want to show the Message Sent/Received Time as per the user’s time zone. For example User 1 sends a message at 6:30 Indian time, when User 2 would view the message it would show as 2:00 UK time. Here goes my question, whenever I save the message should I convert it to GMT+00, so all my base times stamps are the same and then later when I display the message, I convert it back to User specific time zone. Would this be complex? Is this the best way of doing this? I like to get views for both saving and displaying, also when I should do the time conversion from optimization point of view. I would need do deal with any/all timezones. I am developing this application with PHP and MySQL and I am aware of timezone conversion method come with both PHP and MySQL. I am just trying to figure out the best way of doing this. Look forward to have all valuable suggestions. Note : As of now I am not much worried with day/light savings. Thanks Ravi

    Read the article

  • How to architect Rails site that can be edited while running?

    - by Chris Kimpton
    Hi, I am writing a Rails app that "scrapes/navigates" some other websites and webservices for content. I am using Mechanize and Savon to do the heavylifting. But given the dynamic nature of the web, I'd like to make my calls to these editable by the admin users of the site - rather than requiring me to release a new version of the site. The actual scraping thread happens async to the website, using the daemons gem. My requirements are: Thinking that the scraping/webservice calling code is quite simple, the easiest route is to make the whole class editable by the admins. Keep a history of the scraping code - so that we can fairly easily revert if we introduce a problem. Initially use the code from the file system, but as soon as thats been edited and stored somewhere, to use that code instead. I am thinking my options are: Store the code in the db (with a history table for the old versions) Store the code in a private git repo somewhere and access that for the history/latest versions. I am thinking the git route might be easiest, given its raison d'etre is to track file history... But perhaps there is a gem/plugin that does all this for me, out of the box? Thanks in advance for any tips/advice. ~chris

    Read the article

  • Footer positioning with CSS and 960gs

    - by Nick
    I'm new to doing layouts with CSS (I haven't done any web design for a long long time) and I can't seem to figure out how to get the footer of the page to display at the bottom the way I want. Requirements: -Display at bottom of content if content exceeds vertical size of viewport -Display at bottom of viewport if viewport exceeds vertical size of content. The code that I am using sets the footer at the bottom of the viewport, but if I size the browser to be shorter than the content, it just covers the content. Code: <div style="background-image:url(footer_bg.jpg); background-position:bottom; background-repeat:repeat-x; height:235px; width:100%; bottom:0px; position:absolute;"></div> My main goal is to have a footer with text (ie. company info, contact info) and a background gradient. I'd like the footer background to span the width of the page, but I don't know if I can do that with the 960 gs divs.

    Read the article

  • Issue while adding 'Cc' Field in 'TTMessageController' (Three 20)

    - by Deepika
    Hi All I am using the TTMessageController class for compose mail.There is only 'To' recepients Field in this class. I added the Cc Field in it. I have used this code: - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) { _fields = [[NSArray alloc] initWithObjects: [[[TTMessageRecipientField alloc] initWithTitle: TTLocalizedString(@"To:", @"") required: YES] autorelease], [[[TTMessageRecipientField alloc] initWithTitle: TTLocalizedString(@"Cc:", @"") required: YES] autorelease], [[[TTMessageSubjectField alloc] initWithTitle: TTLocalizedString(@"Subject:", @"") required: NO] autorelease], nil]; self.title = TTLocalizedString(@"New Message", @""); self.navigationItem.leftBarButtonItem = [[[UIBarButtonItem alloc] initWithTitle: TTLocalizedString(@"Cancel", @"") style: UIBarButtonItemStyleBordered target: self action: @selector(cancel)] autorelease]; self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc] initWithTitle: TTLocalizedString(@"Send", @"") style: UIBarButtonItemStyleDone target: self action: @selector(send)] autorelease]; self.navigationItem.rightBarButtonItem.enabled = NO; } return self; } When I type anything in 'To' or 'Cc' field , two lists are appearing as search result:- One for 'To' field and second for 'Cc' Field. I want to show only one list according to 'To' or 'Cc' Field. Please suggest me any idea how can I resolve it or some other better way to implement my requirements? Thanks Deepika

    Read the article

  • Interpolating environment variables into a string in Ruby using String#scan

    - by robc
    I'm trying to interpolate environment variables into a string in Ruby and not having much luck. One of my requirements is to do something (log an error, prompt for input, whatever) if a placeholder is found in the initial string that has no matching environment variable. It looks like the block form of String#scan is what I need. Below is an irb session of my failed attempt. irb(main):014:0> raw_string = "need to replace %%FOO%% and %%BAR%% in here" => "need to replace %%FOO%% and %%BAR%% in here" irb(main):015:0> cooked_string << raw_string => "need to replace %%FOO%% and %%BAR%% in here" irb(main):016:0> raw_string.scan(/%%(.*?)%%/) do |var| irb(main):017:1* cooked_string.sub!("%%#{var}%%", ENV[var]) irb(main):018:1> done irb(main):019:1> end TypeError: cannot convert Array into String from (irb):17:in `[]' from (irb):17 from (irb):16:in `scan' from (irb):16 from :0 If I use ENV["FOO"] to manually interpolate one of those, it works fine. I'm banging my head against the desk. What am I doing wrong? Ruby is 1.8.1 on RHEL or 1.8.7 on Cygwin.

    Read the article

  • Distributed Lock Service over MySql/GigaSpaces/Netapp

    - by ripper234
    Disclaimer: I already asked this question, but without the deployment requirement. I got an answer that got 3 upvotes, and when I edited the question to include the deployment requirement the answer then became irrelevant. The reason I'm resubmitting is because SO considers the original question 'answered', even though I got no meaningful upvoted answer. I opened a uservoice submission about this problem. The reason I reposted is so StackOverflow consider the original question answered, so it doesn't show up on the 'unanswered questions' tab. Which distributed lock service would you use? Requirements are: A mutual exclusion (lock) that can be seen from different processes/machines lock...release semantics Automatic lock release after a certain timeout - if lock holder dies, it will automatically be freed after X seconds Java implementation Easy deployment - must not require complicated deployment beyond either Netapp, MySql or GigaSpaces. Must play well with those products (especially GigaSpaces - this is why TerraCotta was ruled out). Nice to have: .Net implementation If it's free: Deadlock detection / mitigation I'm not interested in answers like "it can be done over a database", or "it can be done over JavaSpaces" - I know. Relevant answers should only contain a ready, out-of-the-box, proven implementation.

    Read the article

  • How to highlight the button untill the next view is changed in iphone?

    - by Pugal Devan
    Hi, I am new to iphone development. I have created five buttons in the view controller. If i clicked the button it goes to the corresponding view. Now i want to display the button in highlighted state when it is clicked. It should go back to the normal state only when i click the other button.(See the image below). I have set the another image for highigthting buttons when i clicked it, but it shows that highlighted state only one sec. Now i want to display the buttons highlighted till another button is clicked. Same like a Tabbar operations.(I have used buttons instead of tabbar for my requirements). Now i have used the following code, void didLoad { [btn1 setImage:[UIImage imageNamed:@"ContentColor.png"] forState:UIControlStateHighlighted]; [btn2 setImage:[UIImage imageNamed:@"bColor.png"] forState:UIControlStateHighlighted]; [btn3 setImage:[UIImage imageNamed:@"ShColor.png"] forState:UIControlStateHighlighted]; [btn4 setImage:[UIImage imageNamed:@"PicturesColor.png"] forState:UIControlStateHighlighted]; [btn5 setImage:[UIImage imageNamed:@"infoColor.png"] forState:UIControlStateHighlighted]; } Please help me out. Thanks.

    Read the article

  • How do I supply extra info to IApplicationSettingsProvider class?

    - by joebeazelman
    Perhaps this question has been asked before in a different way, but I haven’t been able to find it. I have one or more plugin adapter assemblies in my application all having the type IPlugin, for instance. Each adapter has its own settings structures stored in a common directory. Whether they are stored in one contiguous file or in separate ones doesn’t matter. Each adapter can have one or more settings associated with it. The settings will have both a name and the Plugin it will be used for. How would I create such a configuration system using the following requirements: I want to use .NETs built in settings system and avoid writing one from scratch The host application will be responsible for locating the plugin settings and passing it to the plugin Each plugin will be responsible for reading and writing its own settings to separate concerns. The host application should call Plugin.Save(thePath) and it does its thing. All settings are user scoped So far, I realize that I would need to write my own SettingsProvider, but the provider seems to work in isolation in that there’s no way to pass it parameters such as the path of the plugin directory and the name of the settings. All of the example code I've seen has the provider getting the data from the runtime environment.

    Read the article

  • Media recommendation engine - Single user system - How to start

    - by Microkernel
    Hi guys, I want to implement a media recommendation engine. I saw a similar posts on this, but I think my requirements are bit different from those, so posting here. Here is the deal. I want to implement a recommendation engine for media players like VLC, which would be an engine that has to care for only single user. Like, it would be embedded in a media player on a PC which is typically used by single user. And it will start learning the likes and dislikes of the user and gradually learns what a user likes. Here it will not be able to find similar users for using their data for recommendation as its a single user system. So how to go about this? Or you can consider it as a recommendation engine that has to be put in say iPods, which has to learn about a single user and recommend music/Movies from the collections it has. I thought of start collecting the genre of music/movies (maybe even artist name) that user watches and recommend movies from the most watched Genre, but it look very crude, isn't it? So is there any algorithms I can use or any resources I can refer up to? Regards, MicroKernel :)

    Read the article

  • How do I start up an NSRunLoop, and ensure that it has an NSAutoreleasePool that gets emptied?

    - by Nick Forge
    I have a "sync" task that relies on several "sub-tasks", which include asynchronous network operations, but which all require access to a single NSManagedObjectContext. Due to the threading requirements of NSManagedObjectContexts, I need every one of these sub-tasks to execute on the same thread. Due to the amount of processing being done in some of these tasks, I need them to be on a background thread. At the moment, I'm launching a new thread by doing this in my singleton SyncEngine object's -init method: [self performSelectorInBackground:@selector(initializeSyncThread) withObject:nil]; The -initializeSyncThread method looks like this: - (void)initializeSyncThread { self.syncThread = [NSThread currentThread]; self.managedObjectContext = [(MyAppDelegate *)[UIApplication sharedApplication].delegate createManagedObjectContext]; NSRunLoop *runLoop = [NSRunLoop currentRunLoop]; [runLoop run]; } Is this the correct way to start up the NSRunLoop for this thread? Is there a better way to do it? The run loop only needs to handle 'performSelector' sources, and it (and its thread) should be around for the lifetime of the process. When it comes to setting up an NSAutoreleasePool, should I do this by using Run Loop Observers to create the autorelease pool and drain it after every run-through?

    Read the article

  • Communication between EJB3 Instances (JEE inter-bean communication) possible?

    - by Hank
    I'm designing a part of a JEE6 application, consisting of EJB3 beans. Part of the requirements are multiple parallel (say a few hundred) long running (over days) database hunts. Individual hunts have different search parameters (start time, end time, query filter). Parameters may get changed over time. Currently I'm thinking of the following: SearchController (Stateless Session Bean) formulates a set of search parameters, sends it off to a SearchListener via JMS SearchListener (Message Driven Bean) receives search parameters, instantiates a SearchWorker with the parameters SearchWorker (SLSB) hunts repeatedly through the database; when it finds something, the result is sent off via JMS, and the search continues; when the given 'end-time' has reached, it ends What I'm wondering now: Is there a problem, with EJB3 instances running for days? (Other than that I need to be able to deal with container restarts...) How do I know how many and which EJB instances of SearchWorker are currently running? Is it possible to communicate with them individually (similar to sending a System V signal to a unix process), e.g. to send new parameters, to end an instance, etc..

    Read the article

  • searching for a programming platform with hot code swap

    - by Andreas
    I'm currently brainstorming over the idea how to upgrade a program while it is running. (Not while debugging, a "production" system.) But one thing that is required for it, is to actually submit the changed source code or compiled byte code into the running process. Pseudo Code var method = typeof(MyClass).GetMethod("Method1"); var content = //get it from a database (bytecode or source code) SELECT content FROM methods WHERE id=? AND version=? method.SetContent(content); At first, I want to achieve the system to work without the complexity of object-orientation. That leads to the following requirements: change source code or byte code of function drop functions add new functions change the signature of a function With .NET (and others) I could inject a class via an IoC and could thus change the source code. But the loading would be cumbersome, because everything has to be in an Assembly or created via Emit. Maybe with Java this would be easier? The whole ClassLoader is replacable, I think. With JavaScript I could achieve many of the goals. Simply eval a new function (MyMethod_V25) and assign it to MyClass.prototype.MyMethod. I think one can also drop functions somehow with "del" Which general-purpose platform can handle such things?

    Read the article

  • What are some choices to port existing Windows GUI app written in C to Linux?

    - by Warner Young
    I've been tasked with porting an existing Windows GUI app to Linux. Ideally, I'd like to do this so the same code base can be used to build either the Windows version or the Linux version. I'll be doing my work on Ubuntu 9.04. After searching around, it's unclear to me what tools are best suited to help me with this. A list of loose requirements would be: The code is in C, not C++, and should compile to build both Windows and Linux versions. Since it's existing code, and fairly large, converting to a managed language like .NET is out of the question for now. I would prefer if I can use the same dialogs in both systems. In Windows, putting up a dialog is pretty simple. You build the dialog in the Resource Editor in Visual Studio, then call DialogBox() API, and handle the event messages. I would really like to find something that can do the equivalent on the Linux side. It would also be nice to have a good IDE similar to Visual Studio. Any helps or hints would be appreciated. Thanks,

    Read the article

  • How to make a product catalog in C#?

    - by Ervin
    I need to develop a product catalog (about 4000 products) application, which would be given to clients on CD or DVD. The catalog exists in webpage format using PHP and MySQL. IMPORTANT: the application is given to clients who maight have old PC, old System. For minimal requirements I would put Windows XP and Internet Explorer 6 (if needed). I need the following features: 1 search option (after productID AND after keyword) 2 print option (by selecting multiple products) 3 shopping cart (making a list which will be sent to an email address if there is any Internet Connection on the computer) When I was asked to do it I had 2 days to realise a very basic version, so I took the whole website and exported it in HTML pages, and developed an application in C# which contains an embeded browser. So the whole website is now static and put on a CD. Everything fine so far. Now here are the problems: 1. the search option was realized by parsing the html files and reading the productID or looking for keywords inside of them. Put on a CD it was extremely slow (searching in 600MB of html files). FOR THIS I WOULD NEED A SOLUTION WITH A STATIC DATABASE (USING ACCESS OR SOMETHING) TO HAVE INDEXED ROWS, SO THE SEARCH COULD BE A VERY FAST ONE. 2. the printing option was a simply call of the embeded Internet Explorer print functions. Here are two problems: a) user needs IE7 for printing the website scaled (FIT TO PAGE), otherwise the edges of the page are cut down. b) users of this app does not have even the basic PC usage skills, so they can't set the printing settings, so there will appear in header and footer the page numbers and titles. QUESTION: can I set these settings from CSS for printing? 3. couldn't make a a shopping cart as I don't use a database, so I have static websites and content is inside the HTML. QUESTION: WHICH ARE THE BEST SOLUTIONS FOR THE PROBLEMS DESCRIBED ABOVE? PLEASE ANSWER EVEN IF YOUR ANSWER IS FOR ONE QUESTION ONLY. THANKS

    Read the article

  • [Java] Cluster Shared Cache

    - by GuiSim
    Hi everyone. I am searching for a java framework that would allow me to share a cache between multiple JVMs. What I would need is something like Hazelcast but without the "distributed" part. I want to be able to add an item in the cache and have it automatically synced to the other "group member" cache. If possible, I'd like the cache to be sync'd via a reliable multicast (or something similar). I've looked at Shoal but sadly the "Distributed State Cache" seems like an insufficient implementation for my needs. I've looked at JBoss Cache but it seems a little overkill for what I need to do. I've looked at JGroups, which seems to be the most promising tool for what I need to do. Does anyone have experiences with JGroups ? Preferably if it was used as a shared cache ? Any other suggestions ? Thanks ! EDIT : We're starting tests to help us decide between Hazelcast and Infinispan, I'll accept an answer soon. EDIT : Due to a sudden requirements changes, we don't need a distributed map anymore. We'll be using JGroups for a low level signaling framework. Thanks everyone for you help.

    Read the article

  • SQL Server: Clustering by timestamp; pros/cons

    - by Ian Boyd
    I have a table in SQL Server, where i want inserts to be added to the end of the table (as opposed to a clustering key that would cause them to be inserted in the middle). This means I want the table clustered by some column that will constantly increase. This could be achieved by clustering on a datetime column: CREATE TABLE Things ( ... CreatedDate datetime DEFAULT getdate(), [timestamp] timestamp, CONSTRAINT [IX_Things] UNIQUE CLUSTERED (CreatedDate) ) But I can't guaranteed that two Things won't have the same time. So my requirements can't really be achieved by a datetime column. I could add a dummy identity int column, and cluster on that: CREATE TABLE Things ( ... RowID int IDENTITY(1,1), [timestamp] timestamp, CONSTRAINT [IX_Things] UNIQUE CLUSTERED (RowID) ) But you'll notice that my table already constains a timestamp column; a column which is guaranteed to be a monotonically increasing. This is exactly the characteristic I want for a candidate cluster key. So I cluster the table on the rowversion (aka timestamp) column: CREATE TABLE Things ( ... [timestamp] timestamp, CONSTRAINT [IX_Things] UNIQUE CLUSTERED (timestamp) ) Rather than adding a dummy identity int column (RowID) to ensure an order, I use what I already have. What I'm looking for are thoughts of why this is a bad idea; and what other ideas are better. Note: Community wiki, since the answers are subjective.

    Read the article

  • Looking for a good dev environment for OSGi bundles

    - by Riduidel
    Hi, I'm currently investigating in the field of dev environment for OSGi bundles. My goal is to find a way to develop, test and debug with ease the bundles I'll be coding. Besides, I have some "cultural" requirements. I want to be able to use java continuous integration servers (typically, Hudson) As a consequence of that first requirement, I want to have a repeatable, one-click build process. My typical tool for that is maven. And finally, being long-term Eclipse user, and having the m2eclipse at hand to merge my eclipse env with my maven one, I obviously want to be able to test and debug with that IDE. So far, here are the infos I know I can use (and have already tested) maven-bundle-plugin, maven-ipojo-plugin which both offer clean packaging facilities I have tested maven pax (and eclipse pax) and am not really satisfied with both : maven pax generates a very heavy project, where adding dependencies is very error-prone (the maven pax:import-bundle command line, with all its arguments, is a hell per se) I have taken a look at Karaf, which seems to have some nice direct maven provisionning, but I don't know how to integrate it with my Eclipse, besides using the traditionnal JPDA bridge. However, it seems to be more production-oriented than dev-oriented, and as such may require heavy configuration to fit my need (although the reading of its user manual doesn't revedal that). Have you got any ideas ? Some maven/eclipse plugins ?

    Read the article

  • TextBox should display text in hexadecimal in a specific format

    - by Owais Wani
    I have a textbox in my xaml file which is editable. Now according to my project requirements content in textbox should only be 0-9 and a-f (hexadecimal values) and textbox should take the input based on hexadecimal values. Demonstratation: 12 ab 32 a5 64 Now if my cursor is at the end and i go on pressing backspace, it shud remove the values as it happens in a general text box. Now If my cursor is at the beginning of a5, and i press "delete key", the value should become like: 12 ab 32 56 4 If my cursor is at the end of a5 and i press the 'delete key" nothing should happen. I had done this successful in my C++ application as follows: void CMSP430CommPanel::textEditorTextChanged (TextEditor& editor) { if(&editor == m_texti2cWrite) { int count = 0; int location; String text1 = m_texti2cWrite->getText(); String text = m_texti2cWrite->getText().removeCharacters(" "); String hexString = String::empty; int countCaret = m_texti2cWrite->getCaretPosition(); for(int i=0; i < text.length(); i++) { hexString = hexString + String (&text[i], 1); if((i+1) % 2 == 0) { if(i != text.length()-1) { hexString = hexString + T(" "); count ++; } } count ++; } m_texti2cWrite->setText(hexString,false); if(text1.length() == m_texti2cWrite->getCaretPosition()) { m_texti2cWrite->setCaretPosition(count); } else { m_texti2cWrite->setCaretPosition(countCaret); } } } where m_texti2cWrite is the name given to textbox. How can i implement the same case in my wpf application which is MVVM based. I have a textbox which shud take inputs as I said above. please help!!!

    Read the article

< Previous Page | 124 125 126 127 128 129 130 131 132 133 134 135  | Next Page >