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  • Objective C: Class Extensions and Protocol Conformation Warnings

    - by Ben Reeves
    I have a large class, which I have divided into several different class extension files for readability. @protocol MyProtocol @required -(void)required; @end @interface MyClass : NSObject <MyProtocol> @end @interface MyClass (RequiredExtension) -(void)required; @end Is there a better way to do this, without the compiler warning? warning: class 'MyClass' does not fully implement the 'MyProtocol' protocol

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  • Are there any programmable barcode scanners that can call a webservice?

    - by Mark Redman
    I am looking at integrating a C# application with a barcode scanner. The last time I did this was with Delphi 1 (win 3.11) using a scanner that plugged in-line into the keyboard cable. Looking around it appears most scanners are USB based these days and assume they emulate keyboard entry. Anybody know of more sophisticated/programmable scanner that can call a webservice or even just do a basic POST/GET this would eliminate the C# application and the computer to support it?

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  • Make windows open with work with my application

    - by Manoj
    Hi, I wrote an application which will be able to open files of particular extension and show it to users. Now I want the users to be able to just double click the file and have it open with my application. I tried to set the "Always use the selected program..." option in the windows "Open With" dialog box, but do not know how to receive the file name that Windows sends to my application. How to do this? Thanks...

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  • Linux / C++: Get Internet IP Address (not local computer's IP)

    - by Levo
    How can I programmatically get the Internet IP address? 1) If the computer is directly connected to the Internet using a USB modem. 2) If the computer is connected to the internet via another computer or a modem/router. I there a way to do both? P.S. This link gives exactly the Internet IP, but how can I use it in my program?

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  • capybara-webkit 0.8.0 installation error

    - by Marat
    I cannot install capybara-webkit 0.8.0. I installed QT and added C:\Qt\4.7.4\bin\ to my PATH. And anyway I'm getting this error: ERROR: Error installing capybara-webkit: ERROR: Failed to build gem native extension. C:/Ruby193/bin/ruby.exe extconf.rb Gem files will remain installed in C:/Ruby193/lib/ruby/gems/1.9.1/gems/capybara- webkit-0.8.0 for inspection. Results logged to C:/Ruby193/lib/ruby/gems/1.9.1/gems/capybara-webkit-0.8.0/./ge m_make.out

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  • What's the easy way to test for 304 reponses?

    - by John Mee
    I need to test if my 304 responses are working, but my development environment is pretty hard set on force no-cache. Is there an easy way to modify the max-age value of the cache-control header before it goes out? I'm perhaps a bit optimistic in hoping chrome (or an extension, or FF) has a console command letting me alter the if-modified-since header then send the request. Maybe paste something into a telnet connection?

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  • Supported Linq for WCF Data Services

    - by jfar
    I'm looking for the full list of supported linq extension methods that are compatible with WCF Data Services. By trial and error I've found First() and Single() aren't supported, any others? This gives me a pretty good idea of whats supported, I just don't know whats actually translated via the IQueryProvider.

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  • What Patterns Should I Consider For a Html Widget Generator?

    - by DaveDev
    I'm looking to see if I can design a HtmlHelper extension method that will generate the Html for different types of widgets I want to produce. Each different type of widget implements functionality to get and prepare any data it needs to render. Can anyone suggest any patterns I could refer to for approaches to take? I know there are probably frameworks available that will do this for me, but I thought I'd give it a try anyway. Any points of advice? Thanks

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  • How do I generate site map from MySQL database

    - by mathew
    Hi all I am new to Php and working on a project which needs to generate sitemaps from URLS which stored in MySQL database. how can I do this?? Is there any one have any idea?? site maps can be in php extension too and only requirement is list of sites display in each page

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  • can I have an abstract base class with the key attribute being generic

    - by Greg
    Hi, I want to create a re-usable library. I was going to use extension methods however I run into some issues in some cases for the client to have to specify in the calling method the types. QUESTION - If I use an abstract base class as the basis, can I specify an attribute/property in the class to be generic (e.g. the key property might be an 'int' in one case, or a 'string' in another)?

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  • How to keep format within HTML converted to Excel

    - by pojomx
    Hello, I'm working with an HTML table, that contains numbers (formated) and when I export this to xls file (just change extension... hehe) I loss some of the formated data. Example: in html I have " 1,000.00 | 500.00 | 20.00 " and in excel it shows like: "1,000.00 | 500 | 20" I want it to know if it is possible to show the very same format as in html. THankyou :P

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  • WPF Binding to IDictionary<int,MyType>.Values Doesn't Respond to Property Changes?

    - by Phil Sandler
    I am binding a ListView a property that essentially wraps the Values collection (ICollection) on a generic dictionary. When the values in the dictionary change, I call OnNotifyPropertyChanged(property). I don't see the updates on the screen, with no binding errors. When I change the property getter to return the Linq extension dictionary.Values.ToList(), without changing the signature of the property (ICollection) it works with no problem. Any reason why the Values collection bind and notify properly without projecting to an IList<?

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  • Barcode reading method?

    - by Atlas
    I recently acquired a Metrologic Barcode scanner (USB port), as everyone already knows it works as a keyboard emulator out of the box. Now my question, how do I configure the scanner and my application, so that my app can process the barcode data directly. That is, I don't want the user to focus on a "Text field" and then process the data when the KeyPress event fires.

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  • .htaccess for hiding url details

    - by rag
    Options +FollowSymlinks RewriteEngine on RewriteRule ^WR-(.*)\.html$ WR.php?act=show i have created .htaccess file to rewrite WR.php?act=show to .html extension and save this file in a folder where my source file are residing. but it is not working can anybody help me please....

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