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• C# Winforms vs WPF

  - by m0s

  Hi pros, I am a student and I do freelance here and there when I have opportunity. I believe my strongest language is C#. I don't really know what is going on in real programming world, so I was wondering if WPF did take over WinForms? I know the differences between two and how two can be used simultaneously but, I just don't want to invest my time in learning dying technologies, I hope you understand. So, for windows desktop programming what would you recommend to master WinForms, WPF or maybe both? I also get a lot that desktop programming is dead already and one should only care about learning web programming. Thanks for attention, any comments are greatly appreciated.

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• Interface implementation Diferences

  - by carlos

  What is the diference of using interfaces like ... I have an interface Public Interface IProDataSource Function read() As Integer End Interface Then a class Public Class DataSource : Implements IProDataSource Function read() As Integer Implements IProDataSource.read some code... End Function End Class Then I use this the next way ... but what is the difference? ... boths approaches are working ... Dim obj As IProDataSource = New DataSource obj.read() vs Dim datas as new Datasource datas.read() The only difference I have notice is that if the method is declare private it will be visible using the first approach only. Thanks for any comments !!!

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• SSH Tunneling from Windows to Linux/Ubuntu

  - by Mike

  My question is for my girlfriend basicly.... She works at a mall and doesn't do much so she likes to get on myspace and facebook as most girls do and yahoo to check her email. Well she uses her laptop to connect to a wireless network that doesn't allow it.... so I did some research and got putty and connected to my linux box I have here at home and it worked somewhat. My problem is it only views my webpages I have created here on this box it won't go outside of the linux host. I did it like this in putty... port is 1000 and hostname:80 is what I got outa my research then connected after seting up the tunnel bam worked for all webpages on my box but when she puts in www.myspace.com it redirects to my index.php in my var/www and won't travel outside that as I said.. Any help would be much obliged.

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• How to automatically add SVN commit messages and revision numbering to java file?

  - by John

  I'm working on an Apache Wicket project in Eclipse with Maven2 -- my SCM is Subversion. I've got Subclipse set up which I use to commit changes to the repository. I've seen several projects with nice headers containing the current revision number and at the bottom of the java source file there's a list of all the changes that have been committed to the file including the comments that were passed. Is there any way of achieving this sort of behaviour automatically? At work I'm using MKS which does this automatically but I am yet to figure out how to achieve this with SVN and Eclipse.

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• Python (pdb) - Queueing up commands to execute

  - by kpatelPro

  I am implementing a "breakpoint" system for use in my Python development that will allow me to call a function that, in essence, calls pdb.set_trace(); Some of the functionality that I would like to implement requires me to control pdb from code while I am within a set_trace context. Example: disableList = [] def breakpoint(name=None): def d(): disableList.append(name) #**** #issue 'run' command to pdb so user #does not have to type 'c' #**** if name in disableList: return print "Use d() to disable breakpoint, 'c' to continue" pdb.set_trace(); In the above example, how do I implement the comments demarked by the #**** ? In other parts of this system, I would like to issue an 'up' command, or two sequential 'up' commands without leaving the pdb session (so the user ends up at a pdb prompt but up two levels on the call stack. Thanks!

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• Freeware Programmer Calculator

  - by AdamC

  There have been lots of times in the past where a good programmer-oriented calculator would've saved me a lot of time. Lately, I've been doing quite a lot of bit manipulation, and having to do build/run to debug my calculations feels really slow. I've looked for something like this in the past, but found nothing that worked very well. The only thing that comes close is this one from AnalogX, but I can't get it to work or really do anything on my vista box which is where I'm doing most of my work at the moment. (btw - please send comments about my vista usage here;). Anyway, I'm looking for something for simple calculations using a C-like syntax with support for proper precenedce, operators, etc. Bonus points for cross-platform. The python interpreter was a great idea and is totally cross-platform. For windows only SpeQ is amazing. Thanks for the suggestions.

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• Python Comet Server

  - by HenryL

  I am building a web application that has a real-time feed (similar to Facebook's newsfeed) that I want to update via a long-polling mechanism. I understand that with Python, my choices are pretty much to either use Stackless (building from their Comet wsgi example) or Cometd + Twisted. Unfortunately there is very little documentation regarding these options and I cannot find good information online about production scale users of comet on Python. Has anyone successfully implemented comet on Python in a production system? How did you go about doing it and where can I find resources to implement my own?

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• Java Media Framework always generating multicast packets with TTL=1

  - by Liam

  I need to generate a G711 multicast audio stream, and came across the AVTransmit2 sample as part of the Java Media Framework. Fundementally this works, however the multicast packets all have TTL set to 1. I found some documentation that suggested the SessionAddress could specify a TTL value, so I've tried changing that i.e. destAddr = new SessionAddress( ipAddr, port, 255); I also found some comments that the problems might be due to java defaulting to IPv6, so I've tried to force it to ipv4 by starting it like this: java -Djava.net.preferIPv4Stack=true -classpath "." AVTransmit2 javasound://8000 239.1.10.65 20480 However looking in wireshark, the packets still have TTL=1 I'm using JMF2.1.1e Any suggestions how to resolve this?

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• Mustache.js render technique

  - by PanosJee

  Hello everyone, i am trying to use mustache.js to render some JSON in the browser. What i want to do is: <li> <span class="label">Location: </span> {{#locations}} {{.}}<span class="social-small-size "></span> {{/locations}} </li> The locations is a js array [["Pendéli, Attiki, Greece", "facebook"], ["Greece", "linkedin"]] Initially i tried to use {{%IMPLICIT-ITERATOR iterator=loc}} in my attempt to split the data in the view. So i the actual rendering code was {{loc[0]}}<span class="social-small-size {{loc[1}}"></span> But that did n t work altough the loop worked and i got 2 spans but without any content. I think the PRAGMA is what I need but I didn 't figure it out. Any hints ? :)

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• Eclipse Outline View - Visible JavaScript Categories in Eclipse?

  - by leeand00

  I just found an option in the little white down arrow in Eclipse that reads "Visible Categories..." How can I use this? It seems to me that it could be used to only show functions that have an @category in their comments, but I haven't been able to make that work. If it did work it would be incredibly useful for separating out Unit Tests from their common-functions and separating them from the setUp and tearDown methods, so what is it really for? By the way I'm editing a Javascript file in the Eclipse "Javascript Editor", I don't know if that makes any difference or not.

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• Suggestion for dragster/dropzone like dock menu

  - by Ger Teunis

  I'd like to create a dragster/dropzone like dock menu. Looks a bit like a stack with a nsview in it. After a lot if documentation searching and googling I've found a way to determine a dock icon's location. (http://cocoadev.com/forums/comments.php?DiscussionID=1431) Is nzbdrop creating a view which just looks like an stack to display it's menu or is there a better way of creating this? Additional info: I'm not looking for the drop like functionality just the nice way the DropBox window is displayed as an bubble/stack menu on top of it's app icon.

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• An Object reference is required for the non-static field

  - by Muhammad Akhtar

  I have make my existing method to static method to get access in javascript, like.. [WebMethod(EnableSession = true), ScriptMethod()] public static void Build(String ID) { Control releaseControl = LoadControl("~/Controls/MyControl.ascx"); //An Object reference is required for the non-static field, mthod or property // 'System.Web.UI.TemplateControl.LoadControl(string)' plc.Controls.Add(releaseControl); // where plc is place holder control //object reference is required for the nonstatic field, method, or property '_Default.pl' } When I build I am getting error and I have posted these in comments below each line before converted it to static method, it working perfectly. Please suggest me the solution of my issue. Thanks

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• Deploying Pylons with Nginx reverse proxy?

  - by resopollution

  Is there a tutorial on how to deploy Pylons with Nginx? I've been able to start nginx and then serve pylons to :8080 with paster serve development.ini However, I can't seem to do other stuff as pylons locks me into that serve mode. If I try to CTRL+Z out of pylons serving to do other stuff on my server, pylons goes down. There must be a different method of deployment. PS - I've done all this: http://wiki.pylonshq.com/display/pylonscookbook/Running+Pylons+with+NGINX?showComments=true#comments I just have no clue what to do with the Pylons app other than paster serve. Not sure if tehre is a different method.

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• chat application: pubsubhubbub vs xmpp

  - by sofia

  I'm unsure on the best stack to build a chat application. Currently I'm thinking of two main options: facebook tornado cons: does not use the main chat protocol xmpp but pubsubhubbub pros: i really like its simplicity for development (webserver + webframework); pubsubhubbub also seems simpler as a protocol than xmpp; and i know python xmpp + bosch, punjab, ejabberd cons: don't know erlang; overall seems a bit harder to develop pros: uses xmpp protocol The chat app will need to have the following: Private messages Public rooms Private rooms Chat history for rooms (not forever, just the last n messages) html embedding url to chat room Both options seem scalable so that's not really my worry (we're thinking of running the app in amazon's ec2 as well). I know there's a project that builds a xmpp server using tornado but it's not ready for production use and our deadline isn't that big. Basically my main worry is ease of development vs somehow regretting later using pubsubhubbub to develop a chat app but I read somewhere that PubSubHubbub might eventually replace XMPP as REST replaced SOAP - so what do you think?

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• update table using cursor but also update records in another table

  - by Bucket

  I'm updating the IDs with new IDs, but I need to retain the same ID for the master record in table A and its dependents in table B. The chunk bracketed by comments is the part I can't figure out. I need to update all the records in table B that share the same ID with the current record I'm looking at for table A. DECLARE CURSOR_A CURSOR FOR SELECT * FROM TABLE_A FOR UPDATE OPEN CURSOR_A FETCH NEXT FROM CURSOR_A WHILE @@FETCH_STATUS = 0 BEGIN BEGIN TRANSACTION UPDATE KEYMASTERTABLE SET RUNNING_NUMBER=RUNNING_NUMBER+1 WHERE TRANSACTION_TYPE='TABLE_A_NEXT_ID' -- FOLLOWING CHUNK IS WRONG!!! UPDATE TABLE_B SET TABLE_B_ID=(SELECT RUNNING_NUMBER FROM KEYMASTERTABLE WHERE TRANSACTION_TYPE='TABLE_A_NEXT_ID') WHERE TABLE_B_ID = (SELECT TABLE_A_ID FROM CURRENT OF CURSOR A) -- END OF BAD CHUNK UPDATE TABLE_A SET TABLE_A_ID=(SELECT RUNNING_NUMBER FROM KEYMASTERTABLE WHERE TRANSACTION_TYPE='TABLE_A_NEXT_ID') WHERE CURRENT OF CURSOR_A COMMIT FETCH NEXT FROM CURSOR_A END CLOSE CURSOR_A DEALLOCATE CURSOR_A GO

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• Email Validation from WTForm using Flask

  - by lost9123193

  I'm following a Flask tutorial from http://code.tutsplus.com/tutorials/intro-to-flask-adding-a-contact-page--net-28982 and am currently stuck on the validation step: The old version had the following: from flask.ext.wtf import Form, TextField, TextAreaField, SubmitField, validators, ValidationError class ContactForm(Form): name = TextField("Name", [validators.Required("Please enter your name.")]) email = TextField("Email", [validators.Required("Please enter your email address."), validators.Email("Please enter your email address.")]) submit = SubmitField("Send") Reading the comments I updated it to this: (replaced validators.Required with InputRequired) (same fields) class ContactForm(Form): name = TextField("Name", validators=[InputRequired('Please enter your name.')]) email = EmailField("Email", validators=[InputRequired("Please enter your email address.")]), validators.Email("Please enter your email address.")]) submit = SubmitField("Send") My only issue is I don't know what to do with the validators.Email. The error message I get is: NameError: name 'validators' is not defined I've looked over the documentation, perhaps I didn't delve deep enough but I can't seem to find an example for email validation.

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• Response.TransmitFile() with UNC share (ASP.NET)

  - by frankadelic

  In the comments of this page: http://msdn.microsoft.com/en-us/library/12s31dhy.aspx ..it says that TransmitFile() cannot be used with UNC shares. As far as I can tell, this is the case; I get this error in Event Log when I attempt it: TransmitFile failed. File Name: \\myshare1\e$\file.zip, Impersonation Enabled: 0, Token Valid: 1, HRESULT: 0x8007052e The suggested alternative is to use WriteFile(), however, this is problematic because it loads the file into memory. In my application, the files are 200MB, so this is not going to scale. Is there a method in ASP.NET for streaming files to users that's: scalable (doesn't read entire file into RAM or occupy ASP.NET threads) works with UNC shares Mapping a network drive as a virtual directory is not an option for us. I would like to avoid copying the file to the local web server as well. Thanks

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• CSS Frameworks like 960 and Blueprint?

  - by Dean J

  This is at the framework level, not dealing directly with CSS, so posting to SO. I just learned about the existence of CSS frameworks. 960 Grid System seems pretty awesome, then I found Blueprint, which seems to do the same thing and more. Is there a better word than "framework" to categorize this? Are there any other products in this category? In response to one of the comments http://stackoverflow.com/questions/1483565/link-to-a-site-designed-using-a-css-framework-blueprint-960-etc, "how many example frameworks do you want? he just listed two of them.", I'd love to have more than two examples, unless those are the only two in the running. Blueprint, which is "the original CSS framework" 960 Grid System, which is a tool to have a grid underlying your screen. YUI 2: Grids, similar to 960? The rest of YUI is more similar to JQuery?

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• Discussions on software architecture - Is StackOverflow appropriate place?

  - by Microkernel

  Hi guys, I am using StackOverFlow for sometime, and its absolutely absolutely awesome for discussions on coding issues. But I don't see discussions on software architecture and designs. What I mean is, I don't see discussions where people put their design ideas and architecture of their software for discussions and ask for reviews and comments. So my question is, is StackOverFlow not the place for such discussions and is there any other place specialized for such discussions. (Like http://serverfault.com for system administrators or http://superuser.com). I am asking this question because, I am a beginner and am coding a piece of software for a course project and am too enthusiastic about it (and passionate too) and want to release it as OpenSource. And I want the code to be highly modular and highly extensible. But as a beginner I am not sure if the design I have comeup is good or not. So want to discuss it with people. Thank You MicroKernel :)

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• NULL values in object properties in Entity Framework

  - by Tony

  Tables: Article, Author, Comment (1 article and 1 author can have * comments) In the database is 1 article, 1 author and 1 comment. The problem is, that code myBD my_bd = new myBD(); var articles = by_bd.Article; works OK, I can see that an Author and an Article has 1 comment. But that code var comm = (from u in my_bd.Comment where ...... select u); returns the comment but it has NULL values in property Article and Author. Why ?

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• What can I do with Java for Blu Ray or BD-J?

  - by Jay Askren

  I have a Blu Ray player which can connect to the internet to play media from netflix and youtube. I am intrigued by the possibilities of BD-J and wondering just how far the technology can be taken. For instance: Could I write a twitter, facebook, rss reader, or email client? Can I write a game which would allows people to play each other over the web from their own tv? Could I write a DVR app which stored tv shows on the thumbdrive plugged into the player. Can I run my applications from a thumbdrive or do I need to put them on a Blu Ray disk? Does anyone have real experience with BD-J? How do you like it as a development platform? How would you recommend getting started? Can I develop in BD-J using open source tools like Eclipse, Maven, etc...

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• Efficiency Question for an Ajax App

  - by Kubi

  Hi, Currently I am dealing with a web application which uses a txt file as a database for testing for now. But we will connect it to a server later on. My question is, if there is a more efficient way to get my objects than the way I am using now. During the page_init I am getting all my objects into a Collection as List, then I am populating the ajax toolkit accordion objects in the page with that. I have some client side buttons which fires callbacks for getting some other objects to populate the accordions in an update panel. And I am using .net Collections too much like dictionary and list, I am wondering if using arrays is more efficient. Could you advise me about how to make this site better and faster ? Is it better or possible to initialize those TravelP objects in javascript at the beginning and use it like that ? Any comments would be greatly appreciated, Thanks

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• How to JOIN a COUNT from a table, and then effect that COUNT with another JOIN

  - by jakenoble

  Hi I have three tables Post ID Name 1 'Something' 2 'Something else' 3 'One more' Comment ID PostId ProfileID Comment 1 1 1 'Hi my name is' 2 2 2 'I like cakes' 3 3 3 'I hate cakes' Profile ID Approved 1 1 2 0 3 1 I want to count the comments for a post where the profile for the comment is approved I can select the data from Post and then join a count from Comment fine. But this count should be dependent on if the Profile is approved or not. The results I am expecting is CommentCount PostId Count 1 1 2 0 3 1 Thanks for any help.

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• how to temporarily set makeprg in vim

  - by Haiyuan Zhang

  In the normal case I use vim's make utility I will set makeprg to the Makefile of the project I'm currently working for. Since usually the project will last for weeks or even longer, I don't need to change the setting of makeprg very often . But sometimes I need to write some "foobar" code either for practicing my c++ skill or for prototyping some primitive ideas in my mind. So whenever I switch to the "foobar" mode of vim usage, I need to comments the original makeprg setting add the new setting as following : au FileType c set makeprg=gcc\ % au FileType cpp set makeprg=g++\ % which is really very very inconvenient . when I back to the "normal project mode" of vim usage, I need to change back to the original setting . back and forth .... what I want to know from you guys is that : is it possible to make the setting of makeprg temporarily . for example , define a function in which first set a local value of makeprg and then call make before return form the function call automatically restore makeprg to the value before the function call.

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• Thrift and .NET - Is this is right combination?

  - by Vadi

  I've been evaluating various technologies for a Social Networking project. The Thrift kind of interested me to evaluate. The advantage I see using Thrift is I can even come with C++ services when the computation in any such business is huge and may not fits with .NET etc., Please suggest your comments. My Questions: Is the open-sourced one is production-ready? Is it the right stack for services layer to choose when the application (GUI) is primarily gets developed in ASP.NET and DB is SQL Server? Is there any other caveats

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