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• SmartGWT Widgets not displaying properly

  - by Holograham

  I have a basic GWT Maven project going. I added SmartGWT and started playing around with some widgets and nothing displays correctly. The ListGrid seems to somewhat render but things are off and even data isnt showing up (though the rows respond to indicate there is data within the row). Sorting arrows dont appear but are clickable, and filters are wildy off. Whats causing this. I deleted everything in the .css file. GWT newbie here.

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• Make error in installing Math support for MediaWiki

  - by Masi

  How can you solve the following Make error in installing MediaWiki? ... /local/lib/site_perl . /etc/perl /usr/local/lib/perl/5.10.0 /usr/local/share/perl/5.10.0 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.10 /usr/share/perl/5.10 /usr/local/lib/site_perl .) at t/maint/php-tag.t line 8. BEGIN failed--compilation aborted at t/maint/php-tag.t line 8. # Looks like your test died before it could output anything. t/maint/php-tag..........dubious Test returned status 255 (wstat 65280, 0xff00) t/maint/unix-newlines....ok Failed Test Stat Wstat Total Fail List of Failed ------------------------------------------------------------------------------- t/00-test.t 127 32512 ?? ?? ?? t/inc/Database.t 127 32512 ?? ?? ?? t/inc/Global.t 127 32512 ?? ?? ?? t/inc/IP.t 127 32512 ?? ?? ?? t/inc/ImageFunctions.t 127 32512 ?? ?? ?? t/inc/Language.t 127 32512 ?? ?? ?? t/inc/Licenses.t 127 32512 ?? ?? ?? t/inc/LocalFile.t 127 32512 ?? ?? ?? t/inc/Parser.t 127 32512 ?? ?? ?? t/inc/Revision.t 127 32512 ?? ?? ?? t/inc/Sanitizer.t 127 32512 ?? ?? ?? t/inc/Search.t 127 32512 ?? ?? ?? t/inc/Title.t 127 32512 ?? ?? ?? t/inc/Xml.t 127 32512 ?? ?? ?? t/maint/php-lint.t 254 65024 966 966 1-966 t/maint/php-tag.t 255 65280 ?? ?? ?? Failed 16/19 test scripts. 966/4248 subtests failed. Files=19, Tests=4248, 46 wallclock secs (33.15 cusr + 10.38 csys = 43.53 CPU) Failed 16/19 test programs. 966/4248 subtests failed. make: *** [test] Error 255

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• The speed of .NET in numerical computing

  - by Yin Zhu

  In my experience, .net is 2 to 3 times slower than native code. (I implemented L-BFGS for multivariate optimization). I have traced the ads on stackoverflow to http://www.centerspace.net/products/ the speed is really amazing, the speed is close to native code. How can they do that? They said that: Q. Is NMath "pure" .NET? A. The answer depends somewhat on your definition of "pure .NET". NMath is written in C#, plus a small Managed C++ layer. For better performance of basic linear algebra operations, however, NMath does rely on the native Intel Math Kernel Library (included with NMath). But there are no COM components, no DLLs--just .NET assemblies. Also, all memory allocated in the Managed C++ layer and used by native code is allocated from the managed heap. Can someone explain more to me? Thanks!

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• What is ltmain.sh, and why does automake say it is missing? What is a good auto (make/conf/etc) gene

  - by gersh

  I just want to develop a C app in linux with the auto(make/conf/...) stuff automatically generated. I tried generating it with ede and anjuta, but it doesn't seem to generate Makefile.am. So, I tried running automake, and it says "ltmain.sh" isn't found. Is there some easy to generate the basic build files for linux C/C++ apps. What is the standard practice? Do most people write these files themselves?

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• Memory cleanup on returned array from static method (objective-c)

  - by Michael Bordelon

  In objective-c, I have a utility class with a bunch of static methods that I call for various tasks. As an example, I have one method that returns an NSArray that I allocate in the static method. If I set the NSArray to autorelease, then some time later, the NSArray in my calling method (that is assigned to the returned pointer) losses it's reference because the original form the static method is cleaned up. I can't release the NSArray object in the static method because it needs to be around for the return and assignment. What is the right way to return an object (like the NSArray) from a static class, and have it hang around for the calling class, but then get cleaned up later when it is no longer needed? Do I have to create the object first in the caller and pass in a pointer to the object and then return that same object form the static method? I know this is a basic O-O problem, I just never had this issue in Java and I do not do much C/C++. Thanks for your help.

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• What is the proper PHP syntax to post a file that exists in a directory that's on the server?

  - by ggg

  This is a basic post form in PHP that loads from the client PC. What is the proper syntax to load from a directory on the server? <form enctype="multipart/form-data" action="index.php?option=com_productionparse" method="POST"> <input type="hidden" name="MAX_FILE_SIZE" value="90000000000" /><br /> Choose a file to upload: <input name="file" size=120 type="file" /><br /> <input type="submit" value="Upload File" /> </form>

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• Mobile Safari iPhone Development - Multiple buttons in a row

  - by Thomas

  Hello all: I'm an iPhone developer, but new to web development. I've done some basic HTML websites and made one in iWeb as well. I'm trying to branch out to actual mobile development now, so I checked out Dashcode. Anyway, I'm trying to put a Call Button, Mail Button, and Map Button in horizontal alignment. I realize that I can add a Column Layout and have two buttons in a row, but that's the most I've gotten. Any ideas? Thanks! Thomas

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• Google datastore stats

  - by Keyur

  I am querying the __Stat_Kind__ kind. It does not return me entities about kinds that currently exist in the datastore but it includes entities about kinds that I had deleted more than a week ago. I am not so much concerned about it returning me the non-existent kinds - the doc does mention this scenario after all. But I am concerned that it does not return me info about my current kinds. Is this a known issue or am I doing something wrong? To folks on the app engine team: Also, on the dev server neither __Stat_Kind__ nor __Stat_Total__ return any entities. Which means I need to deploy my app to appspot before I can test this behavior. It would be nice if the dev server did return some basic info. Thanks, Keyur

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• Text encoding problem between NSImage, NSData, and NSXMLDocument

  - by andyvn22

  I'm attempting to take an NSImage and convert it to a string which I can write in an XML document. My current attempt looks something like this: [xmlDocument setCharacterEncoding: @"US-ASCII"]; NSData* data = [image TIFFRepresentation]; NSString* string = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding]; //Put string inside of NSXMLElement, write out NSXMLDocument. Reading back in looks something like this: NSXMLDocument* newXMLDocument = [[NSXMLDocument alloc] initWithData:data options:0 error:outError]; //Here's where it fails. I get: //Error Domain=NSXMLParserErrorDomain Code=9 UserInfo=0x100195310 "Line 7: Char 0x0 out of allowed range" I assume I'm missing something basic. What's up with this encoding issue?

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• OOP Design Question - Where/When do you Validate properties?

  - by JW

  I have read a few books on OOP DDD/PoEAA/Gang of Four and none of them seem to cover the topic of validation - it seems to be always assumed that data is valid. I gather from the answers to this post (http://stackoverflow.com/questions/1651964/oop-design-question-validating-properties) that a client should only attempt to set a valid property value on a domain object. This person has asked a similar question that remains unanswered: http://bytes.com/topic/php/answers/789086-php-oop-setters-getters-data-validation#post3136182 So how do you ensure it is valid? Do you have a 'validator method' alongside every getter and setter? isValidName() setName() getName() I seem to be missing some key basic knowledge about OOP data validation - can you point me to a book that covers this topic in detail? - ie. covering different types of validation / invariants/ handling feedback / to use Exceptions or not etc

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• Is it feasible to write a Firefox plugin to make use of ActiveX control on Windows?

  - by Gary B2312321321

  I use an ActiveX control called TAPIEx enabling TAPI phone system integration using MS Access 2000 (+Visual Basic). I want to turn this Access database into a web app with the clients running Firefox (all on internal network). Since Firefox doesnt support ActiveX is it feasible for me to write a Firefox plugin that in turn utilizes the ActiveX control? With regard to how plugins work - Would I be able to call 'functions' of the plugin from page script (eg dial call specifying phone number, check if calls in process)? Would adding these functions to the Firefox right click menu 'globally' inside Firefox be easier? Hope you guys can help. Note I'm not a fulltime programmer; I just need to know how steep the learning curve will be or even if my idea is possible! Ive now found a project to allow using activex controls in firefox that seems to be quite up to date at: http://code.google.com/p/ff-activex-host/

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• UVa #112 Tree Summing

  - by unclerojelio

  I'm working on UVa #112 Tree Summing. I have what I think should be a working solution but it is not accepted by the online judge due to a basic misunderstanding of the problem on my part. Consider the following inputs: -1 (-1()()) 77 (77(1()())()) or diagrammatically, the trees look like: -1 77 / \ / \ () () 1 () / \ () () According to at least two working solutions, the correct output for the above inputs is: yes no However, I don't understand why the second one should be 'no'. It looks to me like the rightmost path of the tree should give the proper sum. What am I missing?

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• Programmatically clean Word generated HTML while preserving styles?

  - by GeReV

  In my current company, we have this decade old... let's call it a "Hello World" application. While wanting to create a newer version of it, we also want to preserve older entries. These older entries contain hideous Word generated HTML which was never filtered before. If and when we move to a newer system, I'd generally prefer to have that HTML cleaned and filtered in order to have the site comply with HTML standards as much as possible. However, just cleaning that code like Jeff Atwood described in his blog or in any other way I know of would also ruin the style and formatting. Now, that just might cause our users to revolt and then all hell will break loose... Not a very good idea. Question is -- can Word's HTML be cleaned while preserving basic formatting? (e.g: coloring, italicized, bold text and so on) Preferably using publicly available code or library, such as HTML Tidy, examples in C# would be much appreciated. Thanks!

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• Visual Studio: Design a UserControl class that derives from an abstract base class

  - by Marcel

  Hi All, I want to have an abstract base class for some of my custom UserControl's. The reason is obvious: they share some common properties and methods (a basic implementation of some elements of an interface actually), and I want to implement them only once. I have done this by defining my abstract base class: public abstract class ViewBase : UserControl, ISomeInterface Then I went to implement one of my views, as usual, with the designer: public partial class SpecialView : UserControl //all OK Up to here all is fine. Now I replace the derivation of my SpecialView class with the abstract base class: public partial class SpecialView : ViewBase //disrupts the designer Now, the designer in Visual Studio 2008 won't work anymore, stating: The designer must create an instance of type 'ViewBase' but it cannot because the type is declared as abstract. How can I circumvent this? I just do not want to have the same code copied for all those views. Info: there is a question question with virtual methods, instead of abstract classes, but there is no suitable solution for me.

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• How to tell the database type checking the file

  - by Click Ok

  My friend have a system to manage customers. The program per si is terrible, and my friend lost contact with the developers. The case is, now my friend lost the access to program (something that the developers say "locked to machine" so when moved to another pc, he lost the access to program and data. I get mission of to try to recover the database, migrating to another database, and create a cool program to my friend. Now I need to discover wich database was used by the developers. I know that the program was made using Visual Basic, because the MSVBVM60.DLL is required. There is some program to read the metadata in the .dat files and discover wich database was used?

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• NAVT WordPress Plugin - Not working on index.php

  - by Michael

  Hi there, I need to move my wordpress home page onto the actual index.php file but for some bizarre reason the NAVT plugin doesn't work on there. It also doesn't work on index.php when I put it in the header.php file. It works on all other pages as normal. ALSO, it does work in the footer.php file when viewing the index.php file so this is what makes it all the more confusing. Any ideas what it could be? I've disabled every other plugin so I'm pretty sure there's nothing conflicting. It's rather basic setup and I'm using NAVT default settings. Thanks, Michael.

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• MVC Client Validation from Service Layer

  - by GibboK

  I'm following this article http://www.asp.net/mvc/tutorials/older-versions/models-(data)/validating-with-a-service-layer-cs to include a Service Layer with Business Logic in my MVC Web Application. I'm able to pass messages from the Service Layer to the View Model in a Html.ValidationSummary using ModelState Class. I perform basic validation logic on the View Model (using DataAnnotation attributes) and I have ClientValidation enabled by default which displaying the error message on every single field of my form. The Business logic error message which come from the Service Layer are being displayed on Html.ValidationSummary only after Posting the form to the Server. After Validation from the Service Layer I would like highlight one or more fields and have the message from the Service Layer showing on these fields instead that the Html.ValidationSummary. Any idea how to do it? Thanks

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• What is the best way to manage one's session variables?

  - by donde

  In my .NET web app, I keep basic user info in a user session object. I also usually keep a director class in the session; which is basically just has info about whatever thing it being worked on on that screen (like a customer id). I am trying to keep from adding a ton of sessions. I also want to make sure at any given time ONLY the sessions that are necessary are in memory. This means I need an effective way of managing my session variables. Any suggestions?

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• TFS Build Configuration Vs Test Manager

  - by Ben

  Hi, I have been tasked with setting up TFS 2010 for my company. After setting up TFS and configuring the basics (New collection, project, adding solution to souce control), i thought i would try out some unit testing with it. I configured the Build Controller and Agent for my solution and added in some basic unit tests. These ran ok and did exactly what i would expect (i broke the build then ran the Build Definition, and it showed me where the errors were). My question is, what advantages (apart from the "Black box call stack logger") does Test Manager have over the TFS builds? Is it worth the extra effort of setting that up and configuring it? Only knowing the basics of what Test Manager is, that may be a very naive question to ask, and i appoligise if it is. Thanks

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• Subsetting a data frame in a function using another data frame as parameter

  - by lecodesportif

  I would like to submit a data frame to a function and use it to subset another data frame. This is the basic data frame: foo <- data.frame(var1= c('1', '1', '1', '2', '2', '3'), var2=c('A', 'A', 'B', 'B', 'C', 'C')) I use the following function to find out the frequencies of var2 for specified values of var1. foobar <- function(x, y, z){ a <- subset(x, (x$var1 == y)) b <- subset(a, (a$var2 == z)) n=nrow(b) return(n) } Examples: foobar(foo, 1, "A") # returns 2 foobar(foo, 1, "B") # returns 1 foobar(foo, 3, "C") # returns 1 This works. But now I want to submit a data frame of values to foobar. Instead of the above examples, I would like to submit df to foobar and get the same results as above (2, 1, 1) df <- data.frame(var1=c('1','1','3'), var2=c("A", "B", "C")) When I change foobar to accept two arguments like foobar(foo, df) and use y[, c(var1)] and y[, c(var2)] instead of the two parameters x and y it still doesn't work. Which way is there to do this?

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• How can I create and manage a multi-tenant ASP MVC application

  - by Wizzarding

  Hi, I want to create a multi-tenant application that uses the hostname to determine the customer. For example: CustomerOne.myapp.com AnotherCo.myapp.com AndOneMore.myapp.com ... I can do the database and security side with no problems, I can also get the hostname from the URL, but what I am struggling to find out is how to create the basic plumbing that would allow a new customer to sign up online, provide their company name, and for the application to create the new URL, ready to be used straight away. Can anyone help? Thanks, Rob.

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• Getting started with modern software architecture and design using a book

  - by bitbonk

  I am a rather oldschool developer with some basic knowledge of software design principles and a good background on classic (gof) design patterns. While I continue my life as such I see lots of strange buzzwords emerge: Aspectoriented Design, Componentoriented Design, Domain Driven Design, Domain Specific Languages, Serviceoriented (SOA) Design, Test Driven Design, Extreme Programming, Agile Development, Continuous Integration, Dependency Injection, Software Factories ... Is there good book around that I can take with me on a roadtrip while it is taking me on a trip through all (most) of the above, delivering an 10,000 foot view on modern software archiceture and desing principles and approaches.

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• coding an array in a class library and make a call to it C#

  - by eddy

  I'm new to C#, so this may be a basic question. What I need to do is put an array such as the one below in a class library and then make a call to it. So I'd want the aproprate picture to appear via the class and this array. I know there's a much simpler way to make certain pictures appear, but this is a requirement for the project. It's an asp.NET website in C#. string[] PictureArray; PictureArray = new string[3]; PictureArray[0] = "~/pics/grl.jpg"; PictureArray[1] = "~/pics/pop.jpg"; PictureArray[2] = "~/pics/str.jpg"; PictureArray[3] = "~/pics/unk.jpg";

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• How safe am I signing into Google Spreadsheets with yeroon.net/ggplot2

  - by Farrel

  I am impressed by what I have seen of yeroon.net/ggplot2 which is a web interface for Hadley Wickham's R package ggplot2. I want to try it out on my own data. The part that has me very excited is that one can use data stored in one's own Google spreadsheet as the data. One just signs into their Google Account so that yeroon.net/ggplot2 can access the spreadsheet list. I have been hesitant to do it. If I sign in whilst on yeroon.net am I handing over my username and password to a third party? It would not be wise of me to divulge my google password to third parties since Google is fast becoming my repository of everything. How do I know if Jeroon's application is using ClientLogin or OAuth? My understanding is very basic and may be wrong but nevertheless here it is. OAuth would be better since it does not actually pass the password onto the third party application.

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• Xpath and parameters

  - by Daniel

  I am relatively new to XSL and I think this is a basic question. So I better get my apologies in early! Basically, I would like to use a value-of function. This will be in a template and I would like to pass part of the xpath as a parameter. <xsl:variable name="TEST_VAR">"h:elementA/elementB"</xsl:variable> ... and then use the variable (or passed in param) as all (or part) of the xpath: <xsl:element name="transformedElement"><xsl:value-of select=$TEST_VAR/></xsl:element> I would really like to have the xpath to be a mixture of string literals and the vlue of TEST_VAR. Thanks in advance

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