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• jQuery-AJAX to rebind dropdown list to results from stored procedure

  - by webworm

  I have a dropdown list of peoples names that is quite long. As many as 2,000 names. I would like to make it easier to find the name the user is interested in by limiting the dropdown list to a subset of names at a time. I have done this by creating a series of 26 links (A, B, C ... Z) that call a method in the code behind that populates the dropdown list with only those names starting with the letter the user clicked. This all works well but I would like to be able to use AJAX to accomplish this update of the dropdown list without a page refresh. I would like to use jQuery for the AJAX functionality rather than ASP.NET AJAX. My problem is I am not sure how to execute the stored procedure and then "rebind" the dropdown list with the new dataset via jQuery AJAX. Any suggestions or resources that might provide and example or walk-through? Thank you.

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• Essential Training Topics for Supervisors of ASP.NET Developers

  - by Dave Johnson

  I have a co-worker who supervises a group of ASP.NET developers who are doing lots of ASP.NET/SQL Server apps. My co-worker was very technical at one time, but his last programming assignment was writing Fortran code in the 1980s. He has asked me to help him gain a deeper knowledge of ASP.NET Web application development to equip him in his supervisory role. I will be spending an hour every other week with him providing training, and he will probably not have a lot of time to commit otherwise. What would you recommend as topics to cover, tutorial resources, etc. so that I can help him get up to speed in his role as a supervisor of ASP.NET developers?

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• Restart Delphi Application Programmatically

  - by Smasher

  It should not be possible to run multiple instances of my application. Therefore the project source contains: CreateMutex (nil, False, PChar (ID)); if (GetLastError = ERROR_ALREADY_EXISTS) then Halt; Now I want to restart my application programmatically. The usual way would be: AppName := PChar(Application.ExeName) ; ShellExecute(Handle,'open', AppName, nil, nil, SW_SHOWNORMAL) ; Application.Terminate; But this won't work in my case because of the mutex. Even if I release the mutex before starting the second instace it won't work because shutdown takes some time and two instance cannot run in parallel (because of common resources and other effects). Is there a way to restart an application with such characteristics? (If possible without an additional executable) Thanks in advance.

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• map.resource, parameter restrictions

  - by Tiago

  I've a controller :platform here. I'm trying to do something like: /:platform_name/ to redirect to its show, with the parameter. Here is what I've got: map.resource :platform, :as => ':platform_name', :platform_name => /pc|ps2|ps3|wii|ds|psp|xbox-360/ It's working fine. I've other neasted resources to it, and all them are accessing. But. The problem is, I've only those platform names, but when it doesnt fine another route, it aways fall on this. if I try /whatever/, it will look for the *platform_name = whatever*. I was expecting it to fall into the map.connect ':controller/:action/:id' rule. When I did *:platform_name = /pc|ps2|ps3|wii|ds|psp|xbox-360/*, wasnt expected that this rule only apply when the regular expression is fit? how could i restrict this?

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• Grails domain class initialization

  - by Don

  Hi, My Grails app has the following Spring bean defined in spring/resources.groovy calendarService(CalendarService) { bean -> bean.initMethod = "init" } This method looks something like: class CalendarService { void init() { User.findByEmail("[email protected]") } } When I call the dynamic finder findByEmail I get a MissingMethodException. My guess is that I'm trying to call this method too early, i.e. before the domain classes have had the dynamic finders added to their metaclass. One solution would be to call CalendarService.init() myself from Bootstrap.init, rather than instructing Spring to call it, but is there a better solution? Thanks, Don

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• jQuery jPicker path issues when used in WordPress Theme Options

  - by Scott B

  Anyone with experience using jPicker colorpicker in a WordPress Custom Theme options panel. I believe that the default path for the jPicker resources is /jPicker/ relative to the location the js file appears, however, I'm not seeing the picker.gif icon, so I tried changing the path in the js file like so... images:{clientPath:"../wp-content/themes/myTheme/images/" Everything else appears to be working at first load. My bound input field's background color is the same as the currently selected color. However, the picker.gif icon is missing. Where it should appear, I've just got a 2px wide by 20px tall color element (looks like a div perhaps).

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• Implementing tracing gestures on iPhone

  - by bmoeskau

  I'd like to create an iPhone app that supports tracing of arbitrary shapes using your finger (with accuracy detection). I have seen references to an Apple sample app called "GestureMatch" that supposedly implemented exactly that, but it was removed from the SDK at some point and I cannot find the source anywhere via Google. Does anyone know of a current official sample that demonstrates tracing like this? Or any solid suggestions on other resources to look at? I've done some iPhone programming, but not really anything with the graphics API's or custom handling of touch gestures, so I'm not sure where to start.

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• Overwhelmed by design patterns... where to begin?

  - by Pete

  I am writing a simple prototype code to demonstrate & profile I/O schemes (HDF4, HDF5, HDF5 using parallel IO, NetCDF, etc.) for a physics code. Since focus is on IO, the rest of the program is very simple: class Grid { public: floatArray x,y,z; }; class MyModel { public: MyModel(const int &nip1, const int &njp1, const int &nkp1, const int &numProcs); Grid grid; map<string, floatArray> plasmaVariables; }; Where floatArray is a simple class that lets me define arbitrary dimensioned arrays and do mathematical operations on them (i.e. x+y is point-wise addition). Of course, I could use better encapsulation (write accessors/setters, etc.), but that's not the concept I'm struggling with. For the I/O routines, I am envisioning applying simple inheritance: Abstract I/O class defines read & write functions to fill in the "myModel" object HDF4 derived class HDF5 HDF5 using parallel IO NetCDF etc... The code should read data in any of these formats, then write out to any of these formats. In the past, I would add an AbstractIO member to myModel and create/destroy this object depending on which I/O scheme I want. In this way, I could do something like: myModelObj.ioObj->read('input.hdf') myModelObj.ioObj->write('output.hdf') I have a bit of OOP experience but very little on the Design Patterns front, so I recently acquired the Gang of Four book "Design Patterns: Elements of Reusable Object-Oriented Software". OOP designers: Which pattern(s) would you recommend I use to integrate I/O with the myModel object? I am interested in answering this for two reasons: To learn more about design patterns in general Apply what I learn to help refactor an large old crufty/legacy physics code to be more human-readable & extensible. I am leaning towards applying the Decerator pattern to myModel, so I can attach the I/O responsibilities dynamically to myModel (i.e. whether to use HDF4, HDF5, etc.). However, I don't feel very confident that this is the best pattern to apply. Reading the Gang of Four book cover-to-cover before I start coding feels like a good way to develop an unhealthy caffeine addiction. What patterns do you recommend?

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• System.Uri("") in default browser?

  - by Hallgaws

  I am using special program where it loads some url imagine it like window with automatically load www.google.com - program starts and it load the site - BUT when you click on some links in the program window it opens in default browser - how it can be opened in default browser - I am using this code: <Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _ Partial Class Form1 Inherits System.Windows.Forms.Form <System.Diagnostics.DebuggerNonUserCode()> _ Protected Overrides Sub Dispose(ByVal disposing As Boolean) Try If disposing AndAlso components IsNot Nothing Then components.Dispose() End If Finally MyBase.Dispose(disposing) End Try End Sub Private components As System.ComponentModel.IContainer <System.Diagnostics.DebuggerStepThrough()> _ Private Sub InitializeComponent() Me.components = New System.ComponentModel.Container Dim resources As System.ComponentModel.ComponentResourceManager = New System.ComponentModel.ComponentResourceManager(GetType(Form1)) Me.WB = New System.Windows.Forms.WebBrowser ..... ..... Me.WB.Url = New System.Uri("http://www.google.com/", System.UriKind.Absolute) Using Visual Basic 2008

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• JCAPS deployment to multiple external system environments.

  - by ring bearer

  Hope a few people in here are familiar with JCAPS. Coming from pure j2ee world, it is difficult to digest the deployment model that JCPAS offers. While creating deployment profile, we need to map the resources (such as jdbc, webservice connector) to external systems. External systems are predefined with the target server ip, port, db name, credentials etc(in case of jdbc). So the problem is an EAR built for test environment can not be deployed to production environment. In simpler applications we could store database/credentials etc on to property files and hence EAR built for UAT could be deployed to Production with out any change. Is there a similar strategy available for JCAPS by which EARs built against an environment can be promoted to another seamlessly?

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• Looking for jQuery slideshow where a user can hide/show a block of text (link, caption)

  - by hollyb

  I'm looking to implement a fairly basic jQuery slideshow. One that automatically loops through a set number of images. The snag I'm running into is i'd like to have a little icon in the corner of the picture, that when clicked, brings up a transparent black bar across the bottom with some text and perhaps a link. Has anybody come across anything like this? This gallery is close, but lacks user control for showing/hiding the caption (and might be somewhat restrictive of what text can be used): http://www.queness.com/resources/html/slideshow/jquery-slideshow.html Anyway, if anybody has any tips or links that would be great. Thanks.

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• Where to find Android Development Homework Problems

  - by antonlavey

  Ok so I am starting off with android development and I have found a bunch of useful tutorials so I am set there. What I am looking for is a resource that provides homework style problems to do and has the answers downloadable so I can check my solution against the "official" solution. So for example instead of the notepad tutorial it would be: "Build an application that you can create, edit, delete notes, ...etc.". Ideally the "official" solution would have some explanation as to why they built it the way they did. (so a tutorial at the tail end) Anyone know of any resources that provide their tutorials in this format? Thanks.

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• Partial form with nested routes

  - by jerhinesmith

  I have two models -- User and Entry -- that are related through a has_many relationship (a User has many Entries). I'm using RESTful routing, and have the following in my routes.rb file: map.resource :user, :controller => "users" do |user| user.resources :entries end This seems to work, but in my partial _form file, when I do this: form_for [@current_user, @entry] do |f| # Form stuff end It generates a URL like this: /user/entries.%23%3Cuser:0xb6a6aea8%3E instead of /user/entries Am I missing something? I should note that the correct classes are applied to the form when doing creation vs. editing, so it does seem to be correctly interpreting what I'm trying to do -- it's just that I can't submit the form to an invalid url.

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• Memory leak while using emoticons on CRichEditCtrl

  - by Jorg B Jorge

  I'm developing a text editor class (for a chat application) based on CRichEditCtrl (MFC) with emoticon support. After i load the emoticon's bitmap, I use the function OleCreateStaticFromData to insert it into CRichEditCtrl. After that i just delete the bitmap object allocated by myself. I can verify (using a GDIView utility) that all resources i allocate have been properly released. This works perfectly: the bitmap (emoticon) is drawn on the CRichEditCtrl window and is handled just like a character. My problem is that I don't know how to deallocate the memory (internal) allocated by OleCreateStaticFromData to manage the bitmap (emoticon). The memory allocated for any emoticon used is never released, even if i delete the CRichEditCtrl object. I'd like to know how to fix that issue. Is that a MFC's issue or i'm doing something wrong ? Thx.

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• Pull image of rendered HTML from a specific browser

  - by Geo Ego

  I am working on an app that will be able to pull an image of rendered HTML from a specific browser. I would like the user to be able to select a specific browser to render an HTML file in, and capture the rendered output in an image file. I am starting with IE8, and I'm not sure where to begin to get the actual rendered output. I can easily open the file in that browser with Process.Start(), but I don't know how to return the rendered output. I have looked a little bit at sinking events, but I don't understand how that works or if that's the right way to go. I would just like some direction, and perhaps some resources to send me on the right path.

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• Why does Java not have any destructor like C++?

  - by Abhishek Jain

  Java has its own garbage collection implementation so it does not require any destructor like C++ . This makes Java developer lazy in implementing memory management. And Garbage Collection is very expensive. Still we can have destructor along with garbage collector where developer can free resources and which can save garbage collector's work. This might improves the performance of application. Why does Java not provide any destructor kind of mechanism? Developer does not have control over GC but he/she can control or create object. Then why not give them ability to destruct the objects?

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• How to solve JavaScript origin problem with an application and static file server

  - by recipriversexclusion

  In a system that I'm building I want to serve Static files (static HTML pages and a lot of images), and Dynamic XML generated by my servlet. The dynamic XML is generated from my database (through Hibernate) and I use Restlets to serve it in response to API calls. I want to create a static file server (e.g. Apache) so that this does not interfere with the dynamic server traffic. Currently both servers need to run on the same machine. I've never done something like this before and this is where I'm stuck: The static HTML pages contain JavaScript that makes API calls to the dynamic server. However, since the two servers operate on different ports, I get stuck with the same origin problem. How can this be solved? As a bonus, if you can point me to any resources that explain how to create such a static/dynamic content serving system, I'll be happy. Thanks!

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• Should I log my website's 404 errors?

  - by Ivan Zlatanov

  I have an ASP.NET website, but this question isn't really about technology, it is rather about practice. Should we log our 404 errors? My reasoning: This is a potential vulnerable point because a simple unfriendly user may fill up your hard drive in no time just by requesting wrong URLs! Some browsers often request resources up front - like for example favicon.ico, even if its not there. This is really annoying. But really I would like to know about a broken link if there exists one in my websites. Should I depend on the URL referrer? The problem with the URL referrer is that I cannot distinguish my internal redirect which may be broken with an unfriendly one from outside. What does the practice suggest?

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• Multiple developers on a Titanium project

  - by Cybear

  I'm making an iPhone app with Appcelerator Titanium and I want to share the source code with a few more programmers. I will use a SCM repository which at some point might be open to the general public. Now my question is, are there any files which I should not commit to the repository? In project root I can tell that tiapp.xml and mainfest are telling the app GUID, is there any reason for me to keep that private? (this value is also shown many places in the build/ folder) I've added everything in the Resources/ folder. If I skip the build/iphone/build/ folder, will developers still be able to build the project? Side question - When another programmer downloads this code, it seems to me that (s)he has to have the same directory structure as I do? Any workarounds for this?

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• What would be the wisest choice for a new .Net RESTful web service?

  - by Phil.Wheeler

  I want to write my first REST web service using the .Net framework. I've seen fairly passionate comments from various people about which is best and have even found some differing comments from Microsoft. My web service should be fairly simple: I want to expose bus timetable information. I figure the resources I will be concerned about are Fares Timetables (routes, stops) What would be the most appropriate (i.e. not necessarily the easiest, most fun or your personal preference) technology to use out of WCF, ADO.NET Data Services or ASP.Net MVC?

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• Why do Java/C# edge out C++ as the recommended language to learn OOP on S.O?

  - by viksit

  I noticed after reading the answers/discussion to this question (What is the best language to learn OOP on?) - that more and more people are recommending C# or Java over C++ to learn OOP on. A simple term search on that answer page results in 10 hits for C++, 21 for C# and 27 for Java. Now, I understand that these 2 languages fix a lot of quirks and issues with C++, and looked up these resources that relate mostly to performance, JVM vs native implementation, systems focus vs applications, manual memory management vs automated et al. My question is - are there any fundamental differences in the OO capabilities of Java/C# vs C++? Or are the former recommended purely due to their generic ease of use/improvements over the latter? Thanks. PS, I'm aware of Java interface inheritance vs C++ multiple inheritance as a difference. I would consider that an implementational one rather than functional.

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• Tutorial/resource for implementing VM

  - by zaharpopov

  Hello, I want self-education purpose implement a simple virtual machine for a dynamic language, prefer in C language. Something like the Lua VM, or Parrot, or Python VM, but simpler. Are there any good resources/tutorials on achieving this, apart from looking at code and design documentations of the existing VMs? Thanks in advance for your answers and ideas Edit: why close vote? I don't understand - is this not programming. Please comment if there is specific problem with my question.

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• how to handle .something in the url

  - by dorelal

  I am using rails 2.3.5 . I have a resource for event. map.resources :events respond_to do |format| format.html format.js { render :text => @event.to_json, :layout => false } end It is a public site and sometimes I get urls like http://domain.com/events/14159-international-hardware-show-2010+91+"prashant"+2010+OR+email+OR+data+OR+base+-ALIBA.BACOM&hl=en&ct=clnk I keep getting hoptoad exception email. How do I handle such cases?

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• Custom Item in ListActivity on Android

  - by Honza Pokorny

  Hello everyone, I've spent hours reading through the SDK reference, googling and reading tutorials - but I still can't figure it out. I would like to know how to create a custom list item in the ListActivity widget on Android. Something similar to a Twitter client interface. Each list item has different types of text, possibly an icon, etc. Does anyone know of any resources that would help me understand the process of creating something like that? Any guidance would be appreciated. Thanks

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• Worths to spend $100 to create a browser based game ?

  - by coolboycsaba

  I'm creating a browser based games and I've calculated that it will cost me something like $100 for the domain name and the host. The game uses almost no resources (bandwidth, space, memory). The problem is that I don't know how to find the players, and how many players I need to get a profit. I`m planning to use BuySellAds and Google Adsense. I think the game is pretty good, but I think I will have just a little amount of unique visitors, because each player is counted as unique only once. So what do you think, it will worth ?

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