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  • How to change default image of derived ToolStripButton?

    - by Special Touch
    It seems like a simple task. Create a C# class that derives from ToolStripButton. The derived ToolStripButton should behave exactly the same as the parent class in the designer and the application, except that the default image should be different. Surprisingly just changing the constructor is not sufficient: public CustomToolStripButton() { base.Image = (Image) new Bitmap(typeof(CustomToolStripButton), "CustomImage.bmp"); } When the ToolStripButton is displayed in the designer, the original default image is shown. There must be a simple solution. What could it be?

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  • GData for my own API?

    - by Malax
    Hi StackOverflow! Im currently planning to build an API for my service. I want to use GData because it fits the application scheme and there are libraries for many programming languages available. The first question that rose: Am I allowed to do that? I mean, Google put lots of work into the GData specification and have some sort of copyright. Does anyone know anything about this issue or did that before? You could extend the case if you want to specifically mimic an API which uses GData like the YouTube API to have my API 100% compliant. This is not my case, but I was wondering about that too. :-) Thank you for any input, Malax Edit: Note that i want to use it for my own service. So, I am implementing an API using the GData protocol, not using one of the Google APIs.

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  • Rails 2.x http basic authentication

    - by randombits
    I'm trying to get basic http authentication working on my Rails app. I'm offering a simple REST interface served by a Rails server, only xml/json output. Every method needs authentication, so I put the authenticate filter in ApplicationController: class ApplicationController < ActionController::Base helper :all # include all helpers, all the time before_filter :authenticate protected def authenticate authenticate_or_request_with_http_basic do |u, p| true end end end Even with having the method return true, I'm receiving a 401 from the server: $ curl http://127.0.0.1:3000/myresource/1.xml -i HTTP/1.1 401 Unauthorized Cache-Control: no-cache WWW-Authenticate: Basic realm="Application" X-Runtime: 1 Content-Type: text/html; charset=utf-8 Content-Length: 27 Server: WEBrick/1.3.1 (Ruby/1.9.1/2010-01-10) Date: Thu, 03 Jun 2010 02:43:55 GMT Connection: Keep-Alive HTTP Basic: Access denied. If I'm explicitly returning true, yet getting served a 401.

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  • Rails + MongoMapper + EmbeddedDocument form help

    - by Bob Martens
    I am working on a pretty simple web application (famous last words) and am working with Rails 2.3.5 + MongoMapper 0.7.2 and using embedded documents. I have two questions to ask: First, are there any example applications out there using Rails + MongoMapper + EmbeddedDocument? Preferably on GitHub or some other similar site so that I can take a look at the source and see where I am supposed to head? If not ... ... what is the best way to approach this task? How would I go about creating a form to handle an embedded document. What I am attempting to do is add addresses to users. I can toss up the two models in question if you would like. Thanks for the help!

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  • Flex - Is there a way to change the "Channel Disconnected" error message?

    - by Travesty3
    I have a Flash app with a PHP backend. Whenever there is a PHP error, I get the "Channel Disconnected before an acknowledgement was received" error message. I'm getting ready to push my project to beta and I would prefer if this message said something more like "There was a PHP error, please log a bug" or something instead of a message they don't understand. Anyone know of a way for me to change this error message? BTW I'm pretty much a noob when it comes to Flash programming so please be descriptive. Using Flash Builder 4 Beta 2.

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  • Understanding a multilayer perceptron network

    - by Jonas Nielsen
    Hi all, I'm trying to understand how to train a multilayer, however, I'm having some trouble figuring out on choosing the amount of neurons in my network. For a specific task, I have four input sources that can each input one of three states. I guess that would mean four input neurons firing either 0, 1 or 2, but as far as I'm told, input should be kept binary? Furthermore am I having some issues choosing on the amount of neurons in the hidden layer. Any comments would be great. Thanks.

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  • How can I schedule tasks in a WinForms app?

    - by Greg
    QUESTION: How can I schedule tasks in a WinForms app? That is either (a) what is the best approach / .NET classes/methods to use of (b) if there is an open source component that does this well which one would be recommended. BACKGROUND: Winforms app (.NET v3.5, C#, VS2008) I'm assuming I will run the winforms application always, and just minimise to the system tray when not in use Want a simple approach (didn't want to get into separate service running that UI winforms app talks to etc) Want to be able to let the user select how often to schedule the sync (e.g. hourly, daily - pick time, etc) Ability to at the times when the scheduler fires to run a chunk of code (assume it could be wrapped as a backgroundworker task for example) The application is always running & appears in the system tray

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  • Install a vimball from the command line.

    - by Robert Massaioli
    As this post points out you can install Vimballs using the normal: vim somevimball.vba :so % :q But if you want to install a from the command line how do you do it? I ran a 'man vim' and it seems like the best "from source install" option was the '-S' option so I tried to install haskellmode with it: wget 'http://projects.haskell.org/haskellmode-vim/vimfiles/haskellmode-20090430.vba' vim -S haskellmode-20090430.vba and that failed to work. It gave me the following error: Error detected while processing function vimball#Vimball: line 10: (Vimball) The current file does not appear to be a Vimball! press ENTER or type command to continue It should be noted that using the first method I was able to successfully install the vimball. I have tried the second method on a few other vimballs and it has failed every time. Is there a way to install a vimball from the command line? It seems like a useful sort of task. Oh, and I am running the following version of vim: Version: 2:7.2.330-1ubuntu3 Thanks.

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  • Analysing a Visual Foxpro application to derive requirements. Tools/approaches/practices?

    - by Kabeer
    Hello. In an upcoming project I am supposed to re-engineer a huge application built on Visual Foxpro into a web-application. The target platform is .Net. The application from the end-users' perspective is very complex (complex forms, reports, navigation, etc). The sorry state is that there are no documents available from which I can derive, business processes, business rules, work-flows, validations, application state, etc. I can gather some requirements from end-users but it cannot be complete from any perspective. Maneuvering through the code would be tedious & time consuming, given the millions of lines of code. Therefore I am looking for a tool that can help me in code analysis. My googling attempt didn't help me at least for a Visual Foxpro code base. Besides, I will appreciate if someone can share processes/approaches/techniques to establish the requirements as far as possible. BTW, this link didn't quite help.

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  • Having trouble with Regular Expression and Ampersand

    - by ajax81
    Hi All, I'm having a bit of trouble with regex's (C#, ASP.NET), and I'm pretty sure I'm doing something fundamentally wrong. My task is to bind a dynamically created gridview to a datasource, and then iterate through a column in the grid, looking for the string "A&I". An example of what the data in the cell (in template column) looks like is: Name: John Doe Phone: 555-123-1234 Email: [email protected] Dept: DHS-A&I-MRB Here's the code I'm using to find the string value: foreach(GridViewRow gvrow in gv.Rows) { Match m = Regex.Match(gvrow.Cells[6].Text,"A&I"); if(m.Success) { gvrow.ForeColor = System.Drawing.Color.Red; } } I'm not having any luck with any of these variations: "A&I" "[A][&][I]" But when I strictly user "&", the row does turn red. Any suggestions? Thanks, Dan

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  • C# Object Creation from Datatable

    - by Jonesy
    Hi Folks, Im just getting my head round C#. I've been creating classes and objects so say i created a class called Member: public class Member { public int MemberID; public string FirstName; public string LastName; public string UserName; } and i create a new object of that class by doing this: Member Billy = new Member(); Billy.UserName = "Jonesy"; Billy.FirstName = "Billy"; Billy.LastName = "Jones"; Thats all fine but what if I've queried a database and gotten back 5 members, can I create objects on the fly? Or what is the best way to store these members in memory? I've used VB.Net where I would just add them into a datatable. But I've never really done any object-oriented programming before and thought since I'm learning C sharp nows the best time to learn OOP.. Any help most appreciated! Jonesy

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  • Porting a piece of Lisp code to Clojure (PAIP)

    - by Robert Brown
    I'm reading Paradigms of Artificial Intelligence Programming (PAIP) by Peter Norvig and I'm trying to write all the code in Clojure rather than common Lisp. However I'm stuck on this piece of code on page 39: (defparameter *simple-grammar* '((sentence -> (noun-phrase verb-phrase)) (noun-phrase -> (Article Noun)) (verb-phrase -> (Verb noun-phrase)) (Article -> the a) (Noun -> man ball woman table) (Verb -> hit took saw liked)) "A grammar for a trivial subset of English.") (defvar *grammar* *simple-grammar*) How can I translate this into Clojure? Thanks.

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  • CPU consumption of my process

    - by Abruzzo Forte e Gentile
    Hi all I would like to use Performance Monitor to check the CPU consumption of my process. Right now I am working on a MultiCore machine. If I have a look at my process in TASK MANAGER I see that my process consumes 20% of CPU. If I start performance monitor, I select Process--% Processor Time I see values peaking up and over 100%. Do you know why and how to get the real measure? I also looked at the CPU consumption for all of my 4 cores, but I don't know exactly how to attribute consumption to my process. If you can suggest a link or url about how to read CPU usage I would really appreciate! Thanks a lot! AFG

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  • Rails 3 Flash Uploader

    - by klynch
    I am trying to get Uploadify working with Rails 3. However, I can't insert the middleware with the correct arguments. This is the Rails 2 way: ActionController::Dispatcher.middleware.insert_before( ActionController::Session::CookieStore, FlashSessionCookieMiddleware, ActionController::Base.session_options[:key] ) This is what I have so far for Rails 3: Rails.application.config.middleware.insert_before( Rails.application.config.session_store, FlashSessionCookieMiddleware, Rails.application.config.session_options[:key] ) However, this gives: kevin$hephaestus:$exposure [1035 | 0]% rake middleware (in /Users/kevin/Projects/exposure) rake aborted! protected method `session_options' called for #<Rails::Application::Configuration:0x101eb28d0> (See full trace by running task with --trace) zsh: exit 1 rake middleware When I comment out the session_options argument, the middleware is successfully inserted, but it can't do what it is supposed to. Any suggestions?

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  • How can I manage SQL CE databases in SQL Server Management Studio?

    - by Arul
    Dear all, I have Sqlserver 2005 Express Edition only. and VS 2005. How to i create my .sdf file. and how to create tables in that file... I am developing a SmartDevice Application. if any possible to access the Sql server 2000 DataBase without using .SDF file. Note: in my system i have VS 2005, SQL SERVER 2000, SQL SERVER 2005 Express Edition. And aslo i installed MS-SQL SERVER 2005 Compact Edition Developer SDK[ENU]. In my Sql server 2005 Studio, there is no any sqlserver compact edition in the EngineType Combo. what are the things i need to do.. to perfectly run my application with Data Base. Thanks, Thanks for previous one also.

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  • How do I use test/beta Perl modules from test Perl scripts?

    - by DVK
    If my Perl code has a production code location and "beta" code location (e.g. production Perl code us in /usr/code/scripts, BETA Perl code is in /usr/code/beta/scripts; production Perl libraries are in /usr/code/lib/perl and BETA versions of those libraries are in /usr/code/beta/lib/perl, is there an easy way for me to achieve such a setup? The exact requirements are: The code must be THE SAME in production and BETA location. To clarify, to promote any code (library or script) from BETA to production, the ONLY thing which needs to happen is literally issuing cp command from BETA to prod location - both the file name AND file contents must remain identical. BETA versions of scripts must call other BETA scripts and BETA libraries (if exist) or production libraries (if BETA libraries do not exist) The code paths must be the same between BETA and production with the exception of base directory (/usr/code/ vs /usr/code/beta/) I will present how we solved the problem as an answer to this question, but I'd like to know if there's a better way.

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  • MVC2: Best Way to Intercept ViewRequest and Alter ActionResult

    - by Matthew
    I'm building an ASP.NET MVC2 Web Application that requires some sophisticated authentication and business logic that cannot be achieved using the out of the box forms authentication. I'm new to MVC so bear with me... My plan was to mark all restricted View methods with one or more custom attributes (that contain additional data). The controller would then override the OnActionExecuting method to intercept requests, analyze the target view's attributes, and do a variety of different things, including re-routing the user to different places. I have the interception and attribute analysis working, but the redirection is not working as expected. I have tried setting the ActionExecutingContext.Result to null and even have tried spooling up controllers via reflection and invoking their action methods. No dice. I was able to achieve it this way... protected override void OnActionExecuting(ActionExecutingContext filterContext) { filterContext.HttpContext.Response.Redirect("/MyView", false); base.OnActionExecuting(filterContext); } This seems like a hack, and there has to be a better way...

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  • Good websites and/or books to learn game algorithms?

    - by Moshe
    I'm interested in learning video game algorithms. (For iPhone particularly, but generally as well. I assume certain concepts are the same.) I am best off (personally) learning from a book but websites are useful too. What has helped you learn game programming algorithms and concepts? EDIT: As per request, I'll clarify the types of algorithms... I was looking for any algorithms really, but I guess I was interested in (top-down view) platformer algorithms, but, now that you mention it, Seth, I do wonder about chess...

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  • Will it be possible to use any asp.net and silverlight controls in Intraweb XII?

    - by user193655
    I am researching a lot on intraweb, I read that in Intraweb XII (when will this be released?) it will be possible to have: 1) "silverlight enabled controls" (mentioned here, this is the old IW XI roadmap anyway silverlight task has been moved to XII now) 2) "IntraWeb XII [...] will contain the integration with CrossTalk and ASP.NET" (mentioned here, check for Intraweb XII paragraph). Now I don't understand what this mean in detail. I think IW is very cool, but it lacks a good choice of components, there is only one vendor (TMS) that makes good components, but of course one can wonder "why to be limited to one vendor when I can use more components from more vendors"? So does anyone (ideally from IW team, or that really knows the inner workings of IW XII, I mean the details of the roadmap, since XII is not being developed yet) know what the bold sentences above mean? Will this mean I can use inside IW 3rd party components from any ASP.NET and Silverlight vendor like Telerik, DevExpress, ComponentOne, and many, many, more?

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  • Objective C block gives link error

    - by ennuikiller
    I'm trying to use objective-c blocks for some iPhone programming and am getting the following link time error: The relevant code is: - (NSDictionary *) getDistances { CLLocationCoordinate2D parkingSpace; NSMutableDictionary *dict; NSIndexSet *indexForUser; BOOL (^test)(id obj, NSUInteger idx, BOOL *stop); test = ^ (id obj, NSUInteger idx, BOOL *stop) { NSString *user = (NSString *)[(NSDictionary *)obj valueForKey:@"userid"]; if ([user isEqualToString:self->sharedUser.userName]) { return YES; } return NO; }; [self->sharedUser.availableParking indexesOfObjectsPassingTest:test]; } Any help would be very much appreciated!!

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  • Can't finish Eclipse Plug-in Project Wizard when choosing RCP

    - by Jens Schauder
    I'm trying create a RCP Application with Eclipse, but I can't get past the 'Content' screen of the New Plug-in Project Wizard. When I select 'yes' for "Rich Client Application, Would you like to create a rich client application" it disables the Next and the Finish Button. I first thought it is due to my target platform which is Eclipse 3.2, but changing that doesn't make a difference. On the top of the screen only one task is displayed (now warnings about missing or incompatible information): Enter the data required to generate the plug-in My Eclipse Version is 3.5 Any ideas? Since it was asked. A screenshot can be found here: http://www.flickr.com/photos/jensschauder/4535101973/

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  • Deriving arrays in mathematics

    - by Gio Borje
    So I found some similarities between arrays and set notation while learning about sets and sequences in precalc e.g. set notation: {a | cond } = { a1, a2, a3, a4, ..., an} given that n is the domain (or index) of the array, a subset of Natural numbers (or unsigned integer). Most programming languages would provide similar methods to arrays that are applied to sets e.g. upperbounds & lowerbounds; possibly suprema and infima too. Where did arrays come from?

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  • Adding JPanel onto another JPanel after button click

    - by user1400650
    I'm using Netbeans IDE to make a gui application. I have a JFrame with a JPanel inside it. After a button click I want to display a different JPanel inside the first. The other JPanel is in a different file. How would I go about doing this? If this is not practical I don't mind replacing the first JPanel with the second one. I've tried the following but it doesn't seem to work. I'm new to Java and Gui programming so I would appreciate any help I can get. private void jButtonActionPerformed(java.awt.event.ActionEvent evt) { JPanel2 jPanel2 = new JPanel2(); JPanel1.add(jPanel2); }

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  • Why is thread local storage so slow?

    - by dsimcha
    I'm working on a custom mark-release style memory allocator for the D programming language that works by allocating from thread-local regions. It seems that the thread local storage bottleneck is causing a huge (~50%) slowdown in allocating memory from these regions compared to an otherwise identical single threaded version of the code, even after designing my code to have only one TLS lookup per allocation/deallocation. This is based on allocating/freeing memory a large number of times in a loop, and I'm trying to figure out if it's an artifact of my benchmarking method. My understanding is that thread local storage should basically just involve accessing something through an extra layer of indirection, similar to accessing a variable via a pointer. Is this incorrect? How much overhead does thread-local storage typically have? Note: Although I mention D, I'm also interested in general answers that aren't specific to D, since D's implementation of thread-local storage will likely improve if it is slower than the best implementations.

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  • Exception on dowloading Pdf file in ASP.NET

    - by Sauron
    I am downloading a Pdf file created by crystal report and I download as ReportDocument repDoc = ( ReportDocument ) System.Web.HttpContext.Current.Session["StudyReportCrystalDocument"]; // Stop buffering the response Response.Buffer = false; // Clear the response content and headers Response.ClearContent(); Response.ClearHeaders(); try { repDoc.ExportToHttpResponse(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, Response, true, "StudyReport" ); } catch( Exception ex ) { } Eventhough it is working But I got an exception base {System.SystemException} = {Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack.} Can anyone explain what is the reason for this and how to override the exception?

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