Search Results

Search found 17782 results on 712 pages for 'questions and answers'.

Page 149/712 | < Previous Page | 145 146 147 148 149 150 151 152 153 154 155 156  | Next Page >

  • Silverlight ItemsControl with Alternating ItemTemplate

    - by Ray Booysen
    Silverlight does not support Alternating Item Templates in an ItemsControl. I have a few ideas in mind as to how to accomplish this, but to avoid polluting the potential answers, I'll leave them out. If you had to design a method of providing alternating templates (and I mean a full data template) for an ItemsControl, how would you accomplish this.

    Read the article

  • Where did the "Polymorphism" word come from?

    - by Alon
    I've always wondered where did the word "Polymorphism" word come from. I know what is polymorphism and I use it of course, but I just don't understand why this technique called polymorphism. Note that I'm not a native English speaker, and I will thank you if you'll use simple English in your answers. Thank you.

    Read the article

  • Efficiency of Java "Double Brace Initialization"?

    - by Jim Ferrans
    In Hidden Features of Java the top answer mentions Double Brace Initialization, with a very enticing syntax: Set<String> flavors = new HashSet<String>() {{ add("vanilla"); add("strawberry"); add("chocolate"); add("butter pecan"); }}; This idiom creates an anonymous inner class with just an instance initializer in it, which "can use any [...] methods in the containing scope". Main question: Is this as inefficient as it sounds? Should its use be limited to one-off initializations? (And of course showing off!) Second question: The new HashSet must be the "this" used in the instance initializer ... can anyone shed light on the mechanism? Third question: Is this idiom too obscure to use in production code? Summary: Very, very nice answers, thanks everyone. On question (3), people felt the syntax should be clear (though I'd recommend an occasional comment, especially if your code will pass on to developers who may not be familiar with it). On question (1), The generated code should run quickly. The extra .class files do cause jar file clutter, and slow program startup slightly (thanks to coobird for measuring that). Thilo pointed out that garbage collection can be affected, and the memory cost for the extra loaded classes may be a factor in some cases. Question (2) turned out to be most interesting to me. If I understand the answers, what's happening in DBI is that the anonymous inner class extends the class of the object being constructed by the new operator, and hence has a "this" value referencing the instance being constructed. Very neat. Overall, DBI strikes me as something of an intellectual curiousity. Coobird and others point out you can achieve the same effect with Arrays.asList, varargs methods, Google Collections, and the proposed Java 7 Collection literals. Newer JVM languages like Scala, JRuby, and Groovy also offer concise notations for list construction, and interoperate well with Java. Given that DBI clutters up the classpath, slows down class loading a bit, and makes the code a tad more obscure, I'd probably shy away from it. However, I plan to spring this on a friend who's just gotten his SCJP and loves good natured jousts about Java semantics! ;-) Thanks everyone!

    Read the article

  • Visual Studio macro to read compilation errors and fix implicit conversions automatically in VB.NET

    - by eckesicle
    I am converting a large project in VB.NET that is using Option Strict Off into Option Strict On Naturally I am running into the same compilation error over and over. Strict On does not allow implicit conversion from Object to String/Integer/Double Is it possible to to access the compilation errors with a macro and automatically append .ToString() to the erroneous implicit conversion. Essentially my question is a duplicate off http://stackoverflow.com/questions/2532340/tools-to-convert-option-strict-off-code-into-option-strict-on but that question had no answers. Cheers.

    Read the article

  • Checkbox on Sql Server Reporting Services Report

    - by George Handlin
    I'm working on a report in SSRS 2005 that is a questionnaire with yes/no answers. Trying to get a checkbox on the report. Have tried using windings for the font and an iif statement to set the character, but that doesn't come out correctly when exporting to PDF. I'm using local reports, not from a report server.

    Read the article

  • How to fix issues when MSCRM Plugin Registration fails.

    - by Jeff Davis
    When you register a plug-in in Microsoft CRM all kinds of things can go wrong. Most commonly, the error I get is "An error occurred." When you look for more detail you just get: "Server was unable to process request" and under detail you see "An unexpected error occurred." Not very helpful. However, there are some good answers out there if you really dig. Anybody out there encountered this and how do you fix it?

    Read the article

  • Trie VS Suffix Tree VS Suffix Array

    - by ukrania
    Hello everyone, Which one is the structure that provides best performance results? Trie, Suffix Tree or Suffix Array? There are other equivalent structures? What are good Java implementations of these structures? Thanks for your answers. Best Regards, ukrania

    Read the article

  • Replace Placeholders in word document with c#

    - by Xelluloid
    Hi there, I have a template in word (.docx) format and want to replace some placeholders in this template with my own data, do you know where I can find the right classes for this project? It would be nice for me to know the namespace. Are there any newer classes for handling word documents in the docx format (xml) than the com classes? Thank you for all your answers, I hope someone can help me with my problem. greets Sebastian

    Read the article

  • How to SNAP before RMAN in deCarta DDS?

    - by Jader Dias
    Some of my routes don't work because the deCarta DDS doesn't find any arc near OLL and/or DLL and the server answers: RMAN|%S=Cannot find path origin%N=0|| How to make the server search a nearby arc (SNAP) and do the route (RMAN) in a single request?

    Read the article

  • Differnce between linux write and sendfile syscall

    - by JosiP
    Hi Im programming webserver (C), which should send big files. My question is: What are the main differneces in two syscalls: write and sendfile. Does sendfile depends on size of socket system buffer ? I noticed that write often writes less then i requested. For example, if got many requests for one file: should i open it, copy into memory and use 'write', or maybe i can do 'sendfile' for each client ? thx in advance for all answers

    Read the article

  • What is the best Eclipse GWT plugin?

    - by Johan Pelgrim
    We're going to investigate GWT for our project. When searching for an Eclipse GWT plugin I got many. Google Eclipse Plugin GWT Designer Cypal studio None, run GWT in hosted mode GWT-Tooling Other? In your view, what is the best GWT plugin for Eclipse and why? [27 Nov: Editied to reflect the answers below...]

    Read the article

  • Things possible in IntelliJ that aren't possible in Eclipse?

    - by Epaga
    I have heard from people who have switched either way and who swear by the one or the other. Being a huge Eclipse fan but having not had the time to try out IntelliJ, I am interested hearing from IntelliJ users who are "ex-Eclipsians" some specific things that you can do with IntelliJ that you can not do with Eclipse. Note: This is not a subjective question nor at all meant to turn into a holy IDE war. Please downvote any flamebait answers. Thanks.

    Read the article

  • What is the best keyboard/mouse for ergonomics or to prevent wrist pain?

    - by Steve Duitsman
    I have had pain in my wrists in the past, and as someone who types all day, I was wondering what are some keyboards or mice that have helped for this sort of pain. Update: Many answers have recommended examining chairs/desks for ergonomics. As someone who isn't able to work from home and therefore doesn't have a lot of control over this; is ordering my own chair/desk (whether my employer or I purchase it) a solution that's really realistic?

    Read the article

  • Any suggestions for testing extjs code in a browser, preferably with selenium?

    - by mm2001
    We've been using selenium with great success to handle high-level website testing (in addition to extensive python doctests at a module level). However now we're using extjs for a lot of pages and its proving difficult to incorporate Selenium tests for the complex components like grids. Has anyone had success writing automated tests for extjs-based web pages? Lots of googling finds people with similar problems, but few answers. Thanks!

    Read the article

  • How do I use continuations on Scala 2.8?

    - by Seth Tisue
    Scala 2.8.0.RC1 includes the continuations plugin on trunk for the first time, but the details of how to use it have changed from previous releases, so it's difficult to follow the blog entries and SO answers out there that talk about continuations but were written for previous versions.

    Read the article

  • iGoogle Stack Overflow Gadget [closed]

    - by Charango
    Since SO's question database is becoming an excellent first point of call for finding answers to coding problems, some people (like me) might like to be able to fire up searches from their iGoogle home page, among the other searches you might launch from there. I've created a very simple gadget to do this, and put the source below. My hope is that this might provide a foundation on which community members with better ideas for performing this function, or ideas for enhancing it, can update it. Perhaps we could make it configurable to search via a site scope search from Google and / or a question search, for instance. I've hosted and registered this first version but if anyone makes changes and can host a new version / new pics elsewhere, please feel free. <?xml version="1.0" encoding="UTF-8"?> <Module> <ModulePrefs title="Stack Overflow Search" author="Community Wiki" author_email="[email protected]" author_affiliation="Stack Overflow" author_location="The Internet" author_aboutme="All sorts" author_link="http://stackoverflow.com" author_quote="Hofstadter's Law: It always takes longer than you expect, even when you take into account Hofstadter's Law." description="Stack Overflow is rapidly becoming one of the best resources for finding answers to your programming questions. This gadget adds a question search box to your iGoogle homepage" screenshot="http://arkios-solutions.com/misc/sogadget/SOGadget.png" thumbnail="http://arkios-solutions.com/misc/sogadget/SOGadget_Thumbnail.png" singleton="true" title_url="http://stackoverflow.com" /> <Content type="html"><![CDATA[ <img src="http://i.stackoverflow.com/Content/Img/stackoverflow-logo-250.png" alt="Stackoverflow Logo"/> <div style="font-family:arial;font-size:0.8em;"> This gadget allows you to search the Stack Overflow question database. </div> <form name='SOQueryForm' action="http://stackoverflow.com/search" method="get" target="new"> <p>Your question: <input type='text' size='34' name='q' /></p> <p><input type='submit' value='Go' /></p> </form> ]]> </Content> </Module> The source / installable gadget xml are also hosted here.

    Read the article

  • Algorithm to calculate the number of divisors of a given number

    - by sker
    What would be the most optimal algorithm (performance-wise) to calculate the number of divisors of a given number? It'll be great if you could provide pseudocode or a link to some example. EDIT: All the answers have been very helpful, thank you. I'm implementing the Sieve of Atkin and then I'm going to use something similar to what Jonathan Leffler indicated. The link posted by Justin Bozonier has further information on what I wanted.

    Read the article

  • Which one is more popular?

    - by atch
    Which of IDE's I'm more likely to meet in an office? Borland or Visual Studio? I wouldn't ask this question here (I could use google and type which is better) only for a reason that in my previous cariere as an engineer I worked (and most of my friends) all the time on AutoCAD not on Microstation even though Microstation had always been better software (stability, conforming to standards, ease of use etc.). Thanks for answers.

    Read the article

  • How does a web browser work?

    - by Anil Namde
    I have tried to find good documentation of browsers using google but failed to get what I am looking for. Can someone guide me to a location where I can actually see how a browser functions? The whole purpose of the exercise is to get answers for following queries and more like these: How images, CSS and JS files are downloaded How JS is executed How an Ajax request is executed and many more like these..... Thanks all,

    Read the article

< Previous Page | 145 146 147 148 149 150 151 152 153 154 155 156  | Next Page >