Search Results

Search found 6605 results on 265 pages for 'complex networks'.

Page 174/265 | < Previous Page | 170 171 172 173 174 175 176 177 178 179 180 181  | Next Page >

  • Why doesn't CSS support constants?

    - by Adiel Mittmann
    CSS has never supported constants or variables directly. Whenever I'm writing code like this: span.class1 { color: #377fb6; } div.class2 { border: solid 1px #377fb6; /* Repeated color */ } I wonder why such a seemingly simple feature has never made it into the standard. What could be hard about implementing a scheme whereby we could avoid repetition, something like this: $theme_color1: #377fb6; span.class1 { color: $theme_color1; } div.class2 { border: solid 1px $theme_color1; } I know there are workarounds, like using a class for each color or generating CSS code from templates, but my question is: given that CSS is so rich and complex, why weren't CSS constants ever introduced?

    Read the article

  • Pro's and Con's of unit testing after the fact.

    - by scope-creep
    I have a largish complex app around 27k lines. Its essentially a rule drive multithreaded processing engine, without giving too much away Its been partially tested as it's been built, certain components. Question I have, is what is the pro's and con's of doing unit testing on after the fact, so to speak, after its been implemented. It is clear that traditional testing is going to take 2-3+ months to test every facet, and it all needs to work, and that time is not available really. I've done a fair bit of unit testing in the past, but generally it's been on desktop automation or LOB apps, which are fairly simple. The app is itself is highly componentized internally, interface driven really. I've not decided on what particular framework to use. Any advice would be appreciated. What say you.

    Read the article

  • What's the best technology for a medium complexity web application?

    - by naveed
    I'm planning to work on a web application of reasonable complexity and am wondering what technology to go with. It will probably start with one person, but there will be 2 or 3 more eventually. My first requirement is to be able to do this as quickly as possible - preferably with as less code as possible. Secondly requirement is that it should be able to scale easily. I have worked with .NET and PHP. So, I am thinking about ASP .NET MVC or CakePHP. It appears to me that CakePHP might be quicker. I did look at Ruby on Rails, but the learning curve is a little steep (which is not an issue if I can be convinced that this is the best tool for the task), I'm not too crazy about the huge number of files generated and I have heard about scalability issues as well as it's applicability to complex situations. I look forward to your opinions on your favorite technology and why.

    Read the article

  • Handling Dialogs in WPF with MVVM

    - by Ray Booysen
    In the MVVM pattern for WPF, handling dialogs is one of the more complex operations. As your view model does not know anything about the view, dialog communication can be interesting. I can expose an ICommand that when the view invokes it, a dialog can appear. Does anyone know of a good way to handle results from dialogs? I am speaking about windows dialogs such as MessageBox. One of the ways we did this was have an event on the viewmodel that the view would subscribe to when a dialog was required. public event EventHandler<MyDeleteArgs> RequiresDeleteDialog; This is OK, but it means that the view requires code which is something I would like to stay away from.

    Read the article

  • iPhone SDK: My server doesn't support range header requests, does that mean it's impossible for me t

    - by Jessica
    I am currently developing an iPhone app, in which involves downloads of up to 300 mb. I have been told by my hosting service that my server does not support range header requests. However, when I download a file from my server using a download client, like safari download manager, resume options are available and work. Does this mean that they have a work around for servers that don't support range header requests and that I could possibly implement into my iPhone app? Or are they using a technique too complex to implement into the iPhone. If you know of a technique code samples will be greatly appreciated.

    Read the article

  • PHP Framework / Library Suggestions for a Backend

    - by frbry
    I am about to start to developing backend site of a php project. Companies and site admins will login to this site and manage their data on the project. My previous admin panel experiences were full of agony and pain. So I want to make sure that I choose correct tools for my purpose. By the way, please note, I'm not looking for scaffolding. There won't be much tables in my database. Instead, there will be complex logic between entities. I want clear seperation of markup and logic code and easy-to-use and standardized user-interface. Thank you.

    Read the article

  • Reading and writing to SysV shared memory without synchronization (use of semaphores, C/C++, Linux)

    - by user363778
    Hi, I use SysV shared memory to let two processes communicate with each other. I do not want the code to become to complex so I wondered if I really had to use semaphores to synchronize the access to the shared memory. In my C/C++ program the parent process reads from the shared memory and the child process writes to the shared memory. I wrote two test applications to see if I could produce some kind of error like a segmentation fault, but I couldn't (Ubuntu 10.04 64bit). Even two processes writing non stop in a while loop to the same shared memory did not produce any error. I hope someone has experience concerning this matter and can tell me if I really must use semaphores to synchronize the access or if I am OK without synchronization. Thanks

    Read the article

  • What are the pro and cons of having localization files vs hard coded variables in source code?

    - by corgrath
    Definitions: Files: Having the localization phrases stored in a physical file that gets read at application start-up and the phrases are stored in the memory to be accessed via util-methods. The phrases are stored in key-value format. One file per language. Variables: The localization texts are stored as hard code variables in the application's source code. The variables are complex data types and depending on the current language, the appropriate phrase is returned. Background: The application is a Java Servlet and the developers use Eclipse as their primary IDE. Some brief pro and cons: Since Eclipse is use, tracking and finding unused localizations are easier when they are saved as variables, compared to having them in a file. However the application's source code becomes bigger and bloated. What are the pro and cons of having localization text in files versus hard coded varibles in source code? What do you do and why?

    Read the article

  • Applying a pixel shader effect to a portion of an image

    - by Nick
    I have a ScrollViewer that contains a very large video (16 megapixel @ 10fps) and I want to apply a pixel shader effect to it. Given the size of the images I can't apply the effect directly to the image. So I apply the effect to the ScrollContentPresenter in the control style. Which is great, everything runs nice and fast. However, I'm also rendering annotations inside of the ScrollContentPresenter which I do NOT want effects applied to (but they need to move and scale along with the image). Is there to apply the effect just to the clipped and displayed portion of the image or do I need to build a rather more complex control?

    Read the article

  • Returning from method inside a @synchronized block

    - by Michael Waterfall
    I'd just like to know if it's advised to return from a method within a @synchronized block? For example: - (id)test { @synchronized(self) { if (a) return @"A"; else return @"B"; } } As opposed to: - (id)test { NSString *value; @synchronized(self) { if (a) value = @"A"; else value = @"B"; } return value; } This sample is rather simplistic, but sometimes in a complex method it would make things simpler to be able to return from within a @synchronized block.

    Read the article

  • Javascript Grid that can handle sections in a table

    - by user335410
    I am making an ASP.NET MVC application that lets a user design a questionnaire that other users can fill out. Now, questionnaires, rather than just having a list of questions, often have sections or subsections that could have headings and not the other columns that an ordinary row (a question) would have. I want a JS Grid that can handle sections and subsections elegantly. I tried using JQGrid, but there the options I have are limited to a "Grid as Subgrid" structure. The appearance becomes quite complex and unlike a questionnaire. Is there a Javascript Grid or a JQuery plugin that can handle this? I can write my own HTML table as long as the JS app will format the table and will add some user-friendliness to the table.

    Read the article

  • Store time of the day in SQL

    - by nute
    How would you store a time or time range in SQL? It won't be a datetime because it will just be let's say 4:30PM (not, January 3rd, 4:30pm). Those would be weekly, or daily meetings. The type of queries that I need are of course be for display, but also later will include complex queries such as avoiding conflicts in schedule. I'd rather pick the best datatype for that now. I'm using MS SQL Server Express 2005. Thanks! Nathan

    Read the article

  • How to build the ViewModel in MVVM not to violate the Single Responsibility Principle?

    - by Przemek
    Robert Martin says: "There should never be more than one reason for a class to change". Let's consider the ViewModel class which is bound to a View. It is possible (or even probable) that the ViewModel consists of properties that are not really related to each other. For small views the ViewModel may be quite coherent, but while the application gets more complex the ViewModel will expose data that will be subject to change for different and unrelated reasons. Should we worry about the SRP principle in the case of ViewModel class or not?

    Read the article

  • In a Maven project, what are reasons for either a nested or a flat directory layout?

    - by Hanno Fietz
    As my Maven project grows, I'm trying to stay on top of the project structure. So far, I have a nested directory layout with 2-3 levels, where there's a POM on each level with module entries corresponding to the directories at that level. POM inheritance (parent property) does not necessarily follow this, and is not relevant for the purpose of this question. Now, while the nested structure seems pretty natural to Maven, and it's nice and clean as long as you are on one particular level, I'm starting to get confused by what I look at in my IDE (Eclipse and IntelliJ IDEA). I had a look at the Apache Felix sources, and they have a pretty complex project in what seems to be a flat directory structure, so I'm wondering if this would be a better way to go. What are some pros and cons for either approach that you have experienced in practice? Note that this question (which I found meanwhile) seems to be very similar. I'll leave it to the community to decide whether this should be closed as a duplicate.

    Read the article

  • Convert an XML object back into a string in ColdFusion

    - by jpmyob
    In ColdFusion, I can parse a string of XML formatted data into an XML Object using xmlParse(). How can I convert it back into a string? When I tried using toString() it throws an error that "it can't convert complex object to simple objects....", which is ironic because that's what it's supposed to do. I need to use XMLTransform() which requires the first argument to be an xml string. But I also need to use xmlSearch() to get a node to pass into my transform, and xmlSearch returns an xmlObject. So now I need to put that object back into xml string format to pass into xmlTransform.

    Read the article

  • Breaking the SQL Compact 8K Limit?

    - by David Veeneman
    I am creating a desktop application that stores rich text documents to a SQL Compact database. Documents are converted to a byte array and stored as a Binary column, and I am running into SQL Compact's 8K limit for Binary field length. Is there a simple way to get around the 8K limit? I can come up with lots of complicated ways to do it, such as parsing into 8K chunks for storage and reassembling on fetch. But before I get into something that complex, I would like to make sure I can't solve the problem more simply, such as by changing data type. If there is no simple way of getting around the 8K limit, is thare a best practice for storing documents greater than 8K? Thanks for your help.

    Read the article

  • Need help in Architecture design in java

    - by palakolanusrinu
    Can anyone help in architecture design of one of my complex application. Requirement : In web based application, we need to generate Excel kind of report as HTML page and after that we need to perform different kinds of operations like Add manual rows Delete rows Edit rows adding comments based on each cell viewing the added comments. attaching the file based on each cell viewing the attached file. Collapsible functionality for some of rows In the process of design we have come up with DB design and application framework is Spring. and for Web not yet finalized. what is the best approach to implement this kind of UI? --JSF?(keep in mind we need to Excel operations like above mentioned operations) -- Any reporting tool which will provide editing functionality? Please suggest me How can we do it? and what is the best technology for it? or is there any reporting tools?

    Read the article

  • How to set background image in Java?

    - by Dew
    I am developing a simple platform game using Java using BlueJ as the IDE. Right now I have player/enemy sprites, platforms and other items in the game drawn using polygons and simple shapes. Eventually I hope to replace them with actual images. For now I would like to know what is the simplest solution to setting an image (either URL or from local source) as the 'background' of my game window/canvas? I would appreciate it if it isn't something long or complex as my programming skills aren't very good and I want to keep my program as simple as possible. Kindly provide example codes with comments to elaborate on their function, and also if it's in its own class, how to call on relevant methods used by it on other classes. Thank you very much.

    Read the article

  • What is wrong with my Basic Authentication in FireFox?

    - by Pure.Krome
    Hi folks, i'm trying to goto the following url :- http://user1:pass1@localhost:1234/api/users?format=xml nothing to complex. Notice how i've got the username/password in the url? this, i believe, is for basic authentication. When i do that, the Request Headers are MISSING the 'Authorize' header. Er... that's not right :( I have anonymous authentication only setup on the site. I don't want to have anon off and basic turned on .. because not all of the site requires basic.. only a few action methods. So .. why is this not working? Is this something to do with the fact my code is not sending a 401 challenge or some crap? For What It's Worth, my site is ASP.NET MVC1 running on IIS7 (and the same thing happens when i run it on cassini).

    Read the article

  • Is there a .NET BCL class to help with hand-rolled property path binding?

    - by Wayne
    WPF and Silverlight have a data binding model whereby I can provide a Binding with a Path which comprises a dot-notation of property accessors down from a DataContext to a specific value inside a complex object graph (eg. MyDataContext.RootProperty.SubProperty.Thing.Value) I have a (non-UI) requirement to accept such a path expressed as a simple string, and to use reflection on an object which is (hopefully) of a type which exposes the right property getters and setters in order to read and/or write values to those properties. Before I go off and start writing the parser and reflection code, is there a handy Framework 3.5 BCL class to help with this?

    Read the article

  • WYSIWYG text editor in Java

    - by Aaron Digulla
    I'd like to collect all WYSIWYG text editors for Java here. Some rules for entries: There must be a link to the project/product You must state whether it's open source or commercial Is it possible to extend the editor (add new features like a "violet centered sudoku")? Is that simple or complex? Does it come with lots of features (fancy character and paragraph styles with online spell checking for several languages in the same document) or just the basics (bold, italics, no underline)? List important dependencies (does it run on bare Java with Swing? SWT? MacOS?) Your personal opinion This list should help developers determine which editor to choose. I'm not looking for "the best" but more "what's there".

    Read the article

  • How can I consume a WSDL (SOAP) web service in Python?

    - by DavidM
    I want to use a WSDL SOAP based web service in Python. I have looked at the Dive Into Python code but the SOAPpy module does not work under Python 2.5. I have tried using suds which works partly, but breaks with certain types (suds.TypeNotFound: Type not found: 'item'). I have also looked at Client but this does not appear to support WSDL. And I have looked at ZSI but it looks very complex. Does anyone have any sample code for it? The WSDL is https://ws.pingdom.com/soap/PingdomAPI.wsdl and works fine with the PHP 5 SOAP client.

    Read the article

  • Use LINQ to SQL results inside SQL Server stored procedure

    - by ifwdev
    Note: I'm not trying to call a SQL Server stored proc using a L2SQL datacontext. I use LINQPad for some fairly complex "reporting" that takes L2SQL output saved to an Array and is processed further. For example, it's usually much easier to do multiple levels of grouping with LINQ to Objects instead of trying to optimize a T-SQL query to run in a reasonable amount of time. What would be the easiest way to take the end result of one of these "applications" and use that in a SQL Server 2008 stored proc? The idea is to use the data for a Reporting Services Report, rather than copying and pasting into Excel (manual labor). The reports need to be accessible on the report server (not using the Report Server control in an application). I could output CSV and read that somehow via command line exec, but that seems like a hack. Thanks for your help.

    Read the article

  • What is the chance a CouchDB document update handler will get a revision conflict?

    - by jhs
    How likely is a revision conflict when using an update handler? Should I concern myself with conflict-handling code when writing a robust update function? As described in Document Update Handlers, CouchDB 0.10 and later allows on-demand server-side document modification. Update handlers can process non-JSON formats; but the other major features are these: An HTTP front-end to arbitrarily complex document modification code Similar code needn't be written for all possible clients—a DRY architecture Execution is faster and less likely to hit a revision conflict I am unclear about the third point. Executing locally, the update handler will run much faster and with lower latency. But in situations with high contention, that does not guarantee a successful update. Or does the update handler guarantee a successful update?

    Read the article

  • Float over two elements

    - by eWolf
    My problem is rather complex to explain, so I'll show you an example: http://ewolf.bplaced.de/misc/float.htm I want to have a floated element (the blue box) to be be placed over two other elements (red and green) and I want the whole thing to be fixed-width and centered (done by the box with the black border) while the background of the red and green box should fill the whole width. I'm actually not quite sure if the way I've done it now is XHTML/CSS valid, but it works - at least in Firefox. In IE6, the green box expands to fit the whole blue box - how can I fix this in IE6 or find another solution to show it correctly in all browsers?

    Read the article

< Previous Page | 170 171 172 173 174 175 176 177 178 179 180 181  | Next Page >