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  • Ext JS 4.2.1 loading controller - best practice

    - by Hown_
    I am currently developing a Ext JS application with many views/controlers/... I am wondering myself what the best practice is for loading the JS controllers/views/and so on... currently i have my application defined like this: // enable javascript cache for debugging, otherwise Chrome breakpoints are lost Ext.Loader.setConfig({ disableCaching: false }); Ext.require('Ext.util.History'); Ext.require('app.Sitemap'); Ext.require('app.Error'); Ext.define('app.Application', { name: 'app', extend: 'Ext.app.Application', views: [ // TODO: add views here 'app.view.Viewport', 'app.view.BaseMain', 'app.view.Main', 'app.view.ApplicationHeader', //administration 'app.view.administration.User' ... ], controllers: [ 'app.controller.Viewport', 'app.controller.Main', 'app.controller.ApplicationHeader', //administration 'app.controller.administration.User', ... ], stores: [ // stores in there.. ] }); somehow this forces the client to load all my views and controllers at startup and is calling all init methods of all controllers of course.. i need to load data everytime i chnage my view.. and now i cant load it in my controllers init function. I would have to do something like this i assume: init: function () { this.control({ '#administration_User': { afterrender: this.onAfterRender } }); }, Is there a better way to do this? Or just an other event? Though the main thing i am questioning myself is if it is the best practice to load all the javascript at startup. Wouldnt it be better to only load the controllers/views/... which the client does need right now? Or should i load all the JS at startup? If i do want to load the controllers dynamicly how could i do this? I assume a would have to remove them from my application arrays (views, controllers, stores) and create an instance if i do need it and mby set the view in the controllers init?! What's best practice??

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  • Parsing a website

    - by Phenom
    I want to make a program that takes as user input a website address. The program then goes to that website, downloads it, and then parses the information inside. It outputs a new html file using the information from the website. Specifically, what this program will do is take certain links from the website, and put the links in the output html file, and it will discard everything else. Right now I just want to make it for websites that don't require a login, but later on I want to make it work for sites where you have to login, so it will have to be able to deal with cookies. I'll also want to later on have the program be able to explore certain links and download information from those other sites. What are the best programming languages or tools to do this?

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  • How do I know if I'm being truly clever and not just "clever"?

    - by Covar
    If there's one thing I've learned from programming is that there are clever solutions to problems, and then there are "clever" solutions to problems. One is an intelligent solution to a difficult problem that results in improved efficiency and a better way to to do something and the other will wind up on The Daily WTF, and result in headaches and pain for anyone else involved. My question is how do you distinguish between one and the other? How do you figure out if you've over thought the solution? How do you stop yourself from throwing away truly clever solutions, thinking they were "clever"?

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  • How to change object positions in an android layout?

    - by Pedro Santos
    Hi, I'm currently working on a very simple aplication, and I intended to make it change the visual aspect depending on the screen size. The application just has 6 buttons like this: http://www.freeimagehosting.net/uploads/e1efb4c4d0.jpg I'm using the AbsoluteLayout, and changing the x and y of the buttons with the methods offsetLeftAndRight and offsetTopAndBottom. I'm not changing the layout of the buttons in the xml file, so the all start in the same place. However, if I use this methods inside the onClickMethod they sometimes appear where I want them, sometimes don't (can't figure out why), but if i use them in the onCreate method, nothing happens. Can someone point me in the right direction? Thanks

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  • What languages allow cross-platform native executables to be created?

    - by JT
    I'm frustrated to discover that Java lacks an acceptable solution for creating programs that will run via double-click. Other than .NET for Windows, what modern and high-level programming languages can I write code in that can be compiled for various platforms and run as a native/binary in each (Windows, Linux, OSX (optional)) Assuming I wanted to write code in python, for instance, is there a cohesive way that I could distribute my software which wouldn't require users to do anything special to get it to run? I want to write and distribute software for computer-illiterate and Java has turned out to be a real pain in this respect.

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  • Learning how to program real things.

    - by Sean
    How would you guys recommend I actually learn to program real things? I mean, I know how to do basic academic things. I can implement a templated stack/queue/map/etc. data structure in C++ or Java or whatever. I can make a text-based hangman game or whatever. Etc etc. But how can I learn to program something real, something useful? I've done project Euler up to question 100 or so, and I feel like that's given me more mathematical maturity but not programming maturity. Should I buy a book and follow exercises, struggle through interesting projects, etc, ? In short, how did you guys transition from academic exercises to real, fun and/or useful programs?

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  • memristor is a new paradigm (fourth element in integrated circuits)? [closed]

    - by lsalamon
    The memristor will bring a new paradigm of programming, opened enormous opportunities to enable the machines to gain knowledge, creating a new paradigm toward the intelligence altificial. Do you believe that we are paving the way for the era of intelligent machines? More info about : Brain-like systems? "As for the human brain-like characteristics, memristor technology could one day lead to computer systems that can remember and associate patterns in a way similar to how people do. This could be used to substantially improve facial recognition technology or to provide more complex biometric recognition systems that could more effectively restrict access to personal information. These same pattern-matching capabilities could enable appliances that learn from experience and computers that can make decisions." [EDITED] The way is open. News on the subject Brain-Like Computer Closer to Realization

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  • VB.NET template instance - passing a variable data type

    - by FerretallicA
    As the title suggests, I'm tyring to pass a variable data type to a template class. Something like this: frmExample = New LookupForm(Of Models.MyClass) 'Works fine Dim SelectedType As Type = InstanceOfMyClass.GetType() 'Works fine repoGeneric = New Repositories.Repository(Of SelectedType) 'Ba-bow! repoGeneric = New Repositories.Repository(Of InstanceOfMyClass.GetType()) 'Ba-bow! I'm assuming it's something to do with the template being processed at compile time but even if I'm off the mark there, it wouldn't solve my problem anyway. I can't find any relevant information on using Reflection to instance template classes either. (How) can I create an instance of a dynamically typed repository at runtime?

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  • How to learn Haskell

    - by anderstornvig
    For a few days I've tried to wrap my head around the functional programming paradigm in Haskell. I've done this by reading tutorials and watching screencasts, but nothing really seems to stick. Now, in learning various imperative/OO languages (like C, Java, PHP), excercises have been a good way for me to go. But since I don't really know what Haskell is capable of and because there are many new concepts to utilize, I haven't known where to start. So, how did you learn Haskell? What made you really "break the ice"? Also, any good ideas for beginning excercises?

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  • EXC_BAD_ACCESS on button press for button dynamically added to UIView within UIScrollView

    - by alan
    OK. It's an iPad app. Within the DetailViewController I have added a UIScrollView through IB and within that UIScrollView I have added a UIView (also added through IB) which holds various dynamically added UITableViews, UILabels and UIButtons. My problem is that I'm getting errors on the UIButton clicks. I have defined this method: - (void)translationSearch:(id)sender { NSLog(@"in transearch"); [self doSearch]; } This is how I'm adding the UIButton to the UIView: UIButton *translationButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; translationButton.frame = CGRectMake(6, 200, 200, 20); translationButton.backgroundColor = [UIColor clearColor]; [translationButton setTitle:@"testing" forState:UIControlStateNormal]; [translationButton addTarget:self action:@selector(translationSearch:) forControlEvents:UIControlEventTouchUpInside]; [verbView addSubview:translationButton]; Now the button is added to the form without any issue but, when I press it, I am getting an EXC_BAD_ACCESS error. I'm sure it's staring me in the face but I've passed my usual time limit for getting a bug like this fixed so any help would be greatly appreciated. The only thing I can think is the fact that the UIButton is within a UIView which is within a UIScrollView which is within the view controller is somehow causing an issue. Cheers.

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  • Jquery change text ajax request problem

    - by blasteralfred
    Hi, I have an html file as coded below. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <style> .style1 { background-color: #c3d9ff; font-family:arial,sans-serif; } .style2 { text-align: center; font-weight: bold; } .style3 { background-color: #FFFFFF; font-family:arial,sans-serif; text-align: center; font-weight: bold; } .style4 { background-color: #FFFFFF; font-family:arial,sans-serif; text-align: left; } body { font-family:Verdana, Arial, Helvetica, sans-serif; font-size:15px; background-color: ; } .action_button { font-weight:bold; float:right; } </style> <script type="text/javascript" src="jquery-1.4.4.min.js"></script> <script type="text/javascript">$(function() { $('.action_button').click(function() { var $button = $(this); $.ajax({ type: 'POST', url: 'action.php', data: 'id='+ $(this).attr('id'), cache: false, success: function(result) { var $row = $button.closest('tr'); var $col = $row.find('.clickme2'); $row.fadeOut('fast', function() { if (result == 'ACTIVATED') { $button.text('Activate'); $col.text('Active'); } else if (result == 'INACTIVATED') { $button.text('Inactivate'); $col.text('Inactive'); } }).fadeIn(); } }); return false; }); }); </script> </head> <body> <table style="width: 90%" align="center" class="style1"> <tr> <td colspan="7" class="style2">MANAGER</td> </tr> <tr> <td class="style3" style="width: 139px">Col1</td> <td class="style3" style="width: 139px">Col2</td> <td class="style3" style="width: 139px">Col3</td> <td class="style3" style="width: 139px">Col4</td> <td class="style3" style="width: 139px">Col5</td> <td class="style3" style="width: 200px">Col6</td> <td class="style3" style="">Action</td> </tr> </table> <td id="main" class="main"> <td class="update"> <table style="width: 90%" align="center" class="style1"> <tr> <td class="style4" style="width: 139px">DataA1</td> <td class="style4" style="width: 139px">DataA2</td> <td class="style4" style="width: 139px">DataA3</td> <td class="style4" style="width: 139px">DataA4</td> <td class="style4 clickme2" style="width: 139px">Inactive</td> <td class="style4" style="width: 200px">DataA6</td> <td> <button href="#" id="DataA1" class="action_button" style="width:80px;height:"> Activate</button> </td> </tr> <tr> <td class="style4" style="width: 139px">DataB1</td> <td class="style4" style="width: 139px">DataB2</td> <td class="style4" style="width: 139px">DataB3</td> <td class="style4" style="width: 139px">DataB4</td> <td class="style4 clickme2" style="width: 139px">Inactive</td> <td class="style4" style="width: 200px">DataB6</td> <td> <button href="#" id="DataB1" class="action_button" style="width:80px;height:"> Activate</button> </td> </tr> <tr> <td class="style4" style="width: 139px">DataC1</td> <td class="style4" style="width: 139px">DataC2</td> <td class="style4" style="width: 139px">DataC3</td> <td class="style4" style="width: 139px">DataC4</td> <td class="style4 clickme2" style="width: 139px">Active</td> <td class="style4" style="width: 200px">DataC6</td> <td> <button href="#" id="DataC1" class="action_button" style="width:80px;height:"> Inactivate</button> </td> </tr> <tr> <td class="style4" style="width: 139px">DataD1</td> <td class="style4" style="width: 139px">DataD2</td> <td class="style4" style="width: 139px">DataD3</td> <td class="style4" style="width: 139px">DataD4</td> <td class="style4 clickme2" style="width: 139px">Active</td> <td class="style4" style="width: 200px">DataD6</td> <td> <button href="#" id="DataD1" class="action_button" style="width:80px;height:"> Inactivate</button> </td> </tr> <tr> <td class="style4" style="width: 139px">DataE1</td> <td class="style4" style="width: 139px">DataE2</td> <td class="style4" style="width: 139px">DataE3</td> <td class="style4" style="width: 139px">DataE4</td> <td class="style4 clickme2" style="width: 139px">Inactive</td> <td class="style4" style="width: 200px">DataE6</td> <td> <button href="#" id="DataE1" class="action_button" style="width:80px;height:"> Activate</button> </td> </tr> </table> </td> </td> </body> </html> The fage contain a table with 5 rows with a button at the end of the row. On click, the button submits data to a php file and then changes text and blurs according to the response from php file. The blur function and change text function in col5 is working well. But the change text function in button got really buggy. The button text should change accordingly. the text of button "Activate" should change to "Inactivate" and the text of button "Inactivate" should change to "Activate" on click / successful submission.. This is not working.. Below is the php file code <?php $id = $_POST[id]; if($id=="DataA1"){ echo "ACTIVATED"; } if($id=="DataB1"){ echo "ACTIVATED"; } if($id=="DataE1"){ echo "ACTIVATED"; } if($id=="DataC1"){ echo "INACTIVATED"; } if($id=="DataD1"){ echo "INACTIVATED"; } ?> Thanks in advance.. :) blasteralfred

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  • Comparing all properties of an object using expression trees

    - by stringargs
    Hi, I'm trying to write a simple generator that uses an expression tree to dynamically generate a method that compares all properties of an instance of a type to the properties of another instance of that type. This works fine for most properties, like int an string, but fails for DateTime? (and presumably other nullable value types). The method: static Delegate GenerateComparer(Type type) { var left = Expression.Parameter(type, "left"); var right = Expression.Parameter(type, "right"); Expression result = null; foreach (var p in type.GetProperties()) { var leftProperty = Expression.Property(left, p.Name); var rightProperty = Expression.Property(right, p.Name); var equals = p.PropertyType.GetMethod("Equals", new[] { p.PropertyType }); var callEqualsOnLeft = Expression.Call(leftProperty, equals, rightProperty); result = result != null ? (Expression)Expression.And(result, callEqualsOnLeft) : (Expression)callEqualsOnLeft; } var method = Expression.Lambda(result, left, right).Compile(); return method; } On a DateTime? property it fails with: Expression of type 'System.Nullable`1[System.DateTime]' cannot be used for parameter of type 'System.Object' of method 'Boolean Equals(System.Object)' OK, so it finds an overload of Equals that expects object. So why can't I pass a DateTime? into that, as it's convertible to object? If I look at Nullable<T>, it indeed has an override of Equals(object o). PS: I realize that this isn't a proper generator yet as it can't deal with null values, but I'll get to that :)

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  • Drupal 6, Views 2: Is it possible to have a filter that only applies to registered users?

    - by dajoropo
    Hello, Is it possible to create a filter in a Drupal 6 View that is only applied for registered users? For one filter I need I'm using the user vote (With fivestar and votingapi) to know if they user already voted this node or not, and when the user is annonymous, is working as if all the votes from all the annonymous users where from the same. This is why I need to add this filter, but ignore it in case the user is annonymous. Thanks a lot in advance for the help!

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  • how to get child members value from dynamically casted class?

    - by Baka-Maru Lama
    Well I'm tring to get class members values from a dynamically casted class but I'm unable to find its child class members values. Right now I'm getting TotalWeight members property, but I also want to get child member property of AnotherClass like AnotherClass.child. How can I get those members? string ClassName="something"; Type types = Type.GetType(ClassName, false); var d = from source in types.GetMembers().ToList() where source.MemberType == MemberTypes.Property select source; List<MemberInfo> members = d.Where(memberInfo => d.Select(c => c.Name) .ToList() .Contains(memberInfo.Name)) .ToList(); PropertyInfo propertyInfo; object value; foreach (var memberInfo in members) { propertyInfo = typeof(T).GetProperty(memberInfo.Name); if (myobj.GetType().GetProperty(memberInfo.Name) != null) { value = myobj.GetType() .GetProperty(memberInfo.Name) .GetValue(myobj, null); //how to get child members value here? } } //Where class something has member public class something { private decimal _totalWeight; private Anotherclass _another; public decimal TotalWeight { get { return this._totalWeight; } set { this._totalWeight = value; } } public Anotherclass Another { get { return this._another; } set { this._another= value; } } }

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  • How long is too long for a script to execute?

    - by Chris T
    What is the max time do you think is acceptable for a web script (PHP for example) to execute before it starts to become an annoyance for the user (on average)? I always thought that if the user has to wait more than 1 second for the page to load (this of course after images and css have been cached..this rule really only applies for subsequent requests) they would start to get annoyed.

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  • calling a function without knowing the number of parameters in advance

    - by Sourabh Bose
    suppose i have a dll with 2 functions.name of dll="dll1" f1(int a, int b, int c); f2(int a); my program would take the funtion name ,the dll name and a "list" of parameters as input. how would i call the appropriate function with its appropriate parameters. i.e, if input is dll1 f1 list(5,8,9) this would require me to call f1 with 3 parameters if input was dll1 f2 list(8) it would require me to call f2 with one parameter how would i call the function without knowing the number of parameters in advance. further clarification: how do I write code that will call any function with all its arguments by building the argument list dynamically using some other source of information

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  • Program LED with just USB port

    - by LifeH2O
    I want to control LED with C# using only USB port. I don't want to attach any other device with USB. I just want to attach LED directly to USB port pins and program it (blink etc). How can i do that? I am new to hardware programming and it will be my first program. EDIT: I can do it already (blink LED) using printer port by attaching one led pin to data pin and other to ground. How can i do the same with USB port? My motherboard does not have a printer port. USB is the only option.

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  • Assembly Load and loading the "sub-modules" dependencies - "cannot fild the file specified"

    - by Ted
    There are several questions out there that ask the same question. However the answers they received I cannot understand, so here goes: Similar questions: http://stackoverflow.com/questions/1874277/dynamically-load-assembly-and-manually-force-path-to-get-referenced-assemblies ; http://stackoverflow.com/questions/22012/loading-assemblies-and-its-dependencies-closed The question in short: I need to figure out how dependencies, ie References in my modules can be loaded dynamically. Right now I am getting "The system cannot find the file specified" on Assemblies referenced in my so called modules. I cannot really get how to use the AssemblyResolve event... The longer version I have one application, MODULECONTROLLER, that loads separate modules. These "separate modules" are located in well-known subdirectories, like appBinDir\Modules\Module1 appBinDir\Modules\Module2 Each directory contains all the DLLs that exists in the bin-directory of those projects after a build. So the MODULECONTROLLER loads all the DLLs contained in those folders using this code: byte[] bytes = File.ReadAllBytes(dllFileFullPath); Assembly assembly = null; assembly = Assembly.Load(bytes); I am, as you can see, loading the byte[]-array (so I dont lock the DLL-files). Now, in for example MODULE1, I have a static reference called MyGreatXmlProtocol. The MyGreatXmlProtocol.dll then also exists in the directory appBinDir\Modules\Module1 and is loaded using the above code When code in the MODULE1 tries to use this MyGreatXmlProtocol, I get: Could not load file or assembly 'MyGreatXmlProtocol, Version=1.0.3797.26527, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified. So, in a post (like this one) they say that To my understanding reflection will load the main assembly and then search the GAC for the referenced assemblies, if it cannot find it there, you can then incorparate an assemblyResolve event: First; is it really needed to use the AssemblyResolve-event to make this work? Shouldnt my different MODULEs themself load their DLLs, as they are statically referenced? Second; if AssemblyResolve is the way to go - how do I use it? I have attached a handler to the Event but I never get anything on MyGreatXmlProctol... === EDIT === CODE regarding the AssemblyResolve-event handler: public GUI() { InitializeComponent(); AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(CurrentDomain_AssemblyResolve); ... } // Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args) { Console.WriteLine(args.Name); return null; } Hope I wasnt too fuzzy =) Thx

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  • attaching id to a movieclip

    - by Ross
    I have a loop that creates mc from a database for (var i:Number = 0; i < t.length; i++) { var portfolioItem:PortfolioItem = new PortfolioItem(); addChild(portfolioItem); portfolioItem.name = t[i][0]; portfolioItem.addEventListener(MouseEvent.CLICK, getThisName); } public function getThisName(evt:Event) { trace(evt.target.name); } I try and assign t[i][0] which is the table id to the name attribute but I jsut get 'instance4' or instance 14. How can I give these dynamically create mc's a name or custom property? ideally I would like to use a custom property called portfolio.id but would use the name property or another default property if it works.

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  • Must a Language that Implements Monads be Statically Typed?

    - by Morgan Cheng
    I am learning functional programming style. From this link http://channel9.msdn.com/shows/Going+Deep/Brian-Beckman-Dont-fear-the-Monads/, Brian Beckman gave a brilliant introduction about Monad. He mentioned that Monad is about composition of functions so as to address complexity. A Monad includes a unit function that transfers type T to an amplified type M(T); and a Bind function that, given function from T to M(U), transforms type M(T) to another type M(U). (U can be T, but is not necessarily). In my understanding, the language implementing monad should be type-checked statically. Otherwise, type errors cannot be found during compilation and "Complexity" is not controlled. Is my understanding correct?

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  • Zipping increment file names using Zip Utils

    - by Peter
    Hello I've been using "Zip Utils" from http://www.codeproject.com/Articles/7530/Zip-Utils-clean-elegant-simple-C-Win32 to zip files and folders. the easy thing is if the file name is known i just need to do something like this HZIP hz; DWORD writ; hz = CreateZip(_T("filename\\image1.zip"),0); The problem is I get errors when trying to zip files by incrementing file names within a loop int i= 0; for(i=0; i<record; i++) { ZipAdd(hz,_T("doc"+i+1+".kml"), _T("filename\\doc"+i+1+".kml")); }

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  • Modifying CSS class property values on the fly with JavaScript / jQuery

    - by JPN
    all. I've run into a unique situation that I have so far been unable to find a solution for: dynamically assigning a value to a CSS style. I know how to use jQuery to assign width, height, etc. to an element, but what I'm trying to do is actually change the value defined in the stylesheet so that the dynamically-created value can be assigned to multiple elements. What I'm building is a slideshow of images that occupy the full viewport, recalculating the image's width, height, and left properties on resize so that the image is always centered, favors width over height, except when the viewport is taller than it is wide (resizing does not reload the page, just fires a function to resize the image). I have successfully been able to get it to work on one image, and now I'm trying to determine the best way to assign those property values to all images in the slideshow without having to specify those three things individually for every image. Can the values of properties in a class be modified on the fly? I'm sure the answer is out there, I'm probably just not using the correct terminology in my searches. Hope I did a good job of describing the problem. TIA.

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  • Is there a smart web developer language skill combination?

    - by Cryo
    I'm no newbie to programming, but I'm making the move to a career in web development, and I've noticed that so many job postings have different combinations of skill requirements: (PHP, C#, XML, XHTML/CSS, ASP, .NET, jQuery, YUI, Joomla, Ruby, Perl, Python, Java, Javascript... the list goes on.) As of now, I've started learning XHTML, CSS, JavaScript, jQuery, PHP, and mySQL, but with so many combinations, I want to plan ahead to have a marketable combination of skills as early on as possible. Am I on the right path? What is vital for a marketable web programmer's arsenal? Thanks for your thoughts.

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