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• Group by in Winforms/webforms DataGrid

  - by Kumar

  I'd like to implement the group by features for the default grid as it's available for the commercial grid like devexpress/infragistics et al, if you want a sample, see the 2nd image on http://www.devexpress.com/Products/NET/Controls/WinForms/Grid/dataoperations.xml I'd think there's some pattern or better yet some opensource/free grid which does this already, if not, i would probably implement it if i can find the time (doubtful ! and esp since it's available so easily in most packages, if only i can convince the client to pay for a license ) & want to get some ideas/patterns on the same

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• Implementing the procducer-consumer with .NET 4.0 new

  - by bitbonk

  With alle the new paralell programming features in .NET 4.0, what would be a a simple and fast way to implement the producer-consumer pattern (where at least one thread is producing and enqueuing task items and one other thread executes (dequeues) these tasks). Can we benfit from all these new APIs? What is your preferred implementation of this pattern?

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• What is your most irritating quirk of t-sql

  - by Jude Wood

  I realise this is a bit flippant but it may highlight some 'interesting' features of t-sql. Or just provide some light distraction on a Friday morning... I'm currently torn between t-sql allows three part naming when dropping tables but not when dropping procudures and When using Coalesce to produce a delimited string the presence of a leading delimiter is dependant on whether the delimited string was initialised prior to calling Coalesce I'd be interested to hear yours......

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• What's the best free and opensource PHP ecommerce solution? (and why?)

  - by Andrea Ambu

  I'd like to avoid coding one from scratch, so I'd like to see what the open-source community can offer :-) Required features: Easy way to insert items with photo and description Templates easy-to-create Multi language (at least Italian and English) Shopping cart User managment PayPal support (not required but really appreciated :D) I'm going on PHP and MySQL because of the hosting service I can't change, so please don't talk to me about alternatives :P I'd like to know what's the one you like the most and why should it be better than the others UPDATE: I need also multi language, Italian and English are a must.

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• Zoom , pan inside a rectangle bound

  - by spark03

  I am building a site with some features of google map. I want to pan, zoom in out a map with tweening effect. But when I zoom the map(Movie clip) it zooms out of the rectangular boundary. I also want to wrap the map(when scrolled). How can I do all these?

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• Table Template with Rich UI

  - by sahs

  Hello, I'm trying to find a html (or maybe flash) table template with rich ui features. I googled it, but couldn't find something that has a rich ui, also looked through jquery, still no luck. Before going any deeper search, I believe someone may have suggestions for me. Thanks.

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• Recommend me a good JNI book

  - by Jose Figueroa

  Hello, I'm creating a software project in Java, is a remote administration tool. The thing is that I need to add some features with C++ and I read some about this process and I realized I need JNI, could you recommend me a good JNI Book or something related with ?

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• Changing the text of the cancel button of an NSOpenPanel (Cocoa OSX)

  - by Michael Minerva

  I would like to have a customizable chooser where many features may be customized. One thing I cannot figure out how to do is change the text of the cancel button. I found that the method setPrompt will change the text of the okay button but I can find no similar method for the cancel button, is there such a method?

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• Editable TreeView

  - by Mostafa Mahdieh

  I need a treeview with the following features: ability to drag and drop nodes inside the treeview there are buttons on the top, that allow to move items up and down. editable node text Is there any implementation of this available? If not all, Is there an implementation of feature 1 available?

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• Blackberry Development using NetBeans

  - by Nirmal

  Hello All... I have gone through with the tutorial documents for blackberry development. At every place they have showed the features with eclipse plugins. So, I would like to know that which are the tools I need to download If I want to start development using NetBeans 6.8 (or 6.5) ? And what is the procedure to do so ? Thanks in advance...

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• How do you compare Websphere Commerce with the rest of the ecommerce tools available in the market?

  - by sarego

  All those familiar with websphere commerce will know that it is feature rich. It supports B2B, B2C and extended sites(which ATG doesn't) and some other features. But it is complicated, and on the performance and reliability front it still seems to leave a lot to be desired. Any opinions on which would be better for a high traffic site?

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• Calculate date from numeric value

  - by elias

  The number 71867806 represents the present day, with the smallest unit of days. How can I calculate the currente date from it? (or) convert it into an Unix timestamp? Solution shouldn't use language depending features. Thanks!

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• how to implement and which Audio, video chat with file transfer for mywebsite using php

  - by user338167

  Hi all, I have to implement chat application to mywebsite using php. Chat has the features like audio, video, and file transefer. so please give reply for this, Thanks,

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• time series in python up to microseconds

  - by Abruzzo Forte e Gentile

  Hi All I would like to handle time series in python. I have been suggested to use scikit.timeseries but I need to handle up to microseconds and this last, as far as I know, handles up to milliseconds. Do you know any other library able to do that? At some point I need to merge 2 time series sampled at different time, and I would like to avoid rewriting such kind of features or any new classes from scratch whenever it is possible. I thank you all AFG

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• Membership with Mysql, EF 1 and ASP.NET 3.5

  - by sanfra1983

  Hi, I created a web application with asp.net 3.5 and ado.net entity framework WebForms 1, but have not yet succeeded in creating a memebrship and roles. When I go on ASP.NET Configuration and click the Security Tab I get the following error: Keyword not supported. Parameter name: metadata Someone has already created an application with these same features to help me understand where is the problem? P.S.: I'm going crazy Thanks to all

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• What is HTML5 and are there any benefits to it over Flash?

  - by armando-blume

  I'm not necessarily for Apple, but I am sort of against the need for 3rd party vendors, if a browser can accomplish the same task, efficiently. What are the advantages of HTML5 over HTML4, will there be a new XHTML, and will HTML5 have any interactive features that may replace Flash?

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• Coolest C# LINQ/Lambdas trick you've ever pulled?

  - by chakrit

  Saw a post about hidden features in C# but not a lot of people have written linq/lambdas example so... I wonder... What's the coolest (as in the most elegant) use of the C# LINQ and/or Lambdas/anonymous delegates you have ever saw/written? Bonus if it has went into production too!

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• Which Java version do you mostly (have to) work with?

  - by ferdystschenko

  While from version 5 on, Java provides many extremely useful features like annotations, enums, generics, etc., 1.4 is still in use in many enterprise projects. So I'm wondering what the chances are that you still have to work with 1.4, thus being forced to go without JPA, EJB3 etc. In your answer, please also state the branch of company you work for. Which are the reasons for not switching to Java 5? Thanks, Armin

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• Auto generation of Web Service sample, help and documentation

  - by orjan

  We're using javax.jws.WebServices deployed in a Glassfish server, is there a way to auto generate documentation like the one ASMX services generates? ASMX services display methods in service ASMX services when running locally could be easily tested with a prebuilt form ASMX services provided a sample request and response XML message http://keithelder.net/blog/archive/2008/01/15/How-to-Get-Around-WCFs-Lack-of-a-Preview-Web.aspx In Glasshfish together with /test/TestApi?wsdl there's /test/TestApi?Tester but it doesn't work, I don't know if it can be used to provide similar features as above?

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• Need to place a floating modeless form over excel main window (quasi-task pane)

  - by code4life

  Hi I need to emulate a task pane by floating a modeless form over the Excel main window. The reason for this requirement is that I need to have taskpane features for my Excel 2003 add-in, but cannot use the document-centric model. Can anyone suggest what would be the best way to do this? The modeless form would need to detect the main window resize event and resize itself accordingly, and also need to always position itself at the bottom of the window (kind of like a docking pane).

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• Thread vs async execution. What's different?

  - by Eonil

  I believed any kind of asynchronous execution makes a thread in invisible area. But if so, Async codes does not offer any performance gain than threaded codes. But I can't understand why so many developers are making many features async form. Could you explain about difference and cost of them?

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• Where are user credentials persisted to when creating a Silverlight Business Application Template pr

  - by Scott Davies

  Hi, The Business Application Template in Silverlight 4.0 generates authentication and user management (add user) features. Where is the info stored ? I presume it goes back to the server and then I have my pick on the server side - AD, LDAP, SQL Server, etc. ? Is this correct ? Thanks, Scott

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• Is there any C/C++ opensource library for Content Aware Image transformations?

  - by Ole Jak

  I need it to have at least such features like Content Aware Fill, Content Aware Image Resizing. So is there any such lib? Is there any C or C++ opensource library for Content Aware Image editing/transformations?

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• What is the most useful programming language that no one is using?

  - by dbyrne

  What language do you find incredibly useful that no one else seems to care about? I am not looking for the language with the coolest features, but the language that makes you the most productive. I realize that a productive language that no one uses is a bit of an oxymoron. My personal choice would probably be ruby without rails, but I am sure others can come up with some better answers.

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• Is there a list of changes for C#4.0 that work in .Net 3.5?

  - by Earlz

  Hello, I've been seeing a lot of C# 4.0 changes as of late. I really like some of them. Also though, I do not want to move on to .Net 4.0 for compatibility reasons just yet. So, is there a comprehensive list of new C# 4.0 language features that will work on .Net 3.5 or lower?

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