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• How can I order my entries by sum from a separate table?

  - by bgadoci

  I am wondering how I can order posts in my PostController#index to display by a column total in a separate table. Here is how I have it set up. class Post < ActiveRecord::Base :has_many :votes end and Class Vote < ActiveRecord::Base :belongs_to :post end I user can either vote up or down a particular post. I know there are likely better ways to do what I am currently doing but looking for a fix given my current situation. When a user votes up a post, a value of 1 is passed to the Vote Table via a hidden field. When a user votes down a post a value of -1 is passed to the same column (names vote). I am wondering how I can display my posts in order of the sum of the vote column (in the vote table) for a particular post. Another way to say that is, if a particular post has a net vote sum of 5, I want that to appear above a post with a net vote sum of 4. I am assuming that I need to affect the PostController#index action in some fashion. But not sure how to do that.

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• Adding dynamic content with events in jquerymobile

  - by Christian Waidner

  Currently I'm stuck with a problem in jquerymobile: I'm adding items to a list dynamically and use enhanceWithin() in the end (so styling is correct). After this I like to add click-events for each list item but the problem is, that enhanceWithin runs asynchronous and so I always get the error message "cannot call methods on checkboxradio prior to initialization; attempted to call method 'refresh'" When I delay the event-adding-code it works perfectly. Does anyone have an idea if there is a enhanceWithin.done event or anything else I can use? HTML: ... <div id="shoppinglist">Loading list...</div> ... Javascript: function updateList() { var result = ""; $.each(shoppinglistItems, function (index, item) { result += '<label><input type="checkbox" ' + item.checked + ' id="item_' + item.id + '">' + item.name + '</label>\n'; }); $('#shoppinglist').html(result).enhanceWithin(); // Change-Events an die Checkboxen knoten $('input[id*=item_]').unbind('change').bind('change', function (event) { var itemid = $(this).attr('id'); itemid = (itemid.split('_'))[1]; // Nur die Zahl extrahieren // Passendes Item aus der Liste der Items suchen und checken $.each(shoppinglistItems, function (index, item) { if (item.id == itemid) { item.checked = "checked"; item.timestamp = moment().format("YYYYMMDDHHmmss"); } }); updateList(); }); }

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• [^.] causing headache in RewriteRule

  - by Ollie2893

  I am struggling with a very basic regex problem in my .htaccess file that I hope someone may be able to shed some light on. The basic premise is that I would like to teach Apache to switch any .html extension into a .var extension. I had thought that the rule would be positively trivial: RewriteRule ^([^.]+)\.html$ $1.var But the [^.] part simply doesn't work. Bizarrely, it works like so RewriteRule ^([^A-Z]+)\.html$ $1.var I do not understand why this latter rule works. Assume I am looking for a file called "index.html" then $1 should match to "index." and the ".html" bit should actually fail to match. To widen the scope of the question slightly, I am actually racking my brain on how to implement a multi-lingual site. I don't like Apache's MultiView option because it forces upon me a flat directory structure with file extensions that aren't recognizable to many development tools. I could go the .var type-map route but am finding that the default config for Apache doesn't support this all that well either (hence my excursions into regex land). So while I am using mod_rewrite, I am thinking that I might go the whole hog: whenever a request for a name.html file is received and this file does not exist, check whether there exists a XX/name.html file instead, where "XX" is the language code according to the user's preferences. This would give me a neater directory structure, though it does perhaps not perform as well as the .var approach in a situation where the language preference of the user's browser is not supported in by my site (in which situation .var would substitute EN or similar). Any thoughts? Thanks.

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• Rails: Duplicate functionality across controllers? A humble plea.

  - by Alex

  So I'm working with authlogic, and I'm trying to duplicate the login functionality to the welcome page, so that you can log in by restful url or by just going to the main page. No, I don't know if we'll keep that feature, but I want to test it out anyway. Here's the error message: RuntimeError in Welcome#index Called id for nil, which would mistakenly be 4 -- if you really wanted the id of nil, use object_id The code is below. Basically, what's happening is the index view (the first code snippet) is sending the information from the form to the create method of user_sessions controller. At this point, in theory, it create should just pick up, but it doesn't. PLEASE help. Please. I've been doing this for about 8 hours. I checked Google. I checked IRC. I checked every book I could find. You don't even have to answer, I can to the grunt work if you just point me in the right direction. <% form_for @user_session, :url => user_sessions_path do |f| %> <%= f.text_field :email %><br /> <%= f.password_field :password %> <%= submit_tag 'Login' %> <% end %> class ApplicationController < ActionController::Base helper :all # include all helpers, all the time protect_from_forgery # See ActionController::RequestForgeryProtection for details # Scrub sensitive parameters from your log # filter_parameter_logging :password helper_method :current_user_session, :current_user before_filter :new_session_object protected def new_session_object unless current_user @user_session = UserSession.new(params[:user_session]) end end private def current_user_session return @current_user_session if defined?(@current_user_session) @current_user_session = UserSession.find end def current_user return @current_user if defined?(@current_user) @current_user = current_user_session && current_user_session.record end end

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• Uitableview not able to hold data

  - by pankaj

  Hi i have a uitableview, i am displaying some data of about 200 rows in it. Data will be displayed in several sections which will be determined at run time. I am able to get sections but i am not able to display data for a particular section in correct order. I have data in the form of dictionaries in an array. My Code: - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { TeraGoAppDelegate *appDel = (TeraGoAppDelegate *)[[UIApplication sharedApplication] delegate]; UITableViewCell *cell = nil; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:nil] autorelease]; cell.textLabel.text = [(NSMutableDictionary *)[appDel.arrEqp objectAtIndex:countEqpIndex] objectForKey:@"EQP_NAME"]; cell.textLabel.font = [UIFont fontWithName:@"Arial" size:14]; if(![[(NSMutableDictionary *)[appDel.arrEqp objectAtIndex:indexPath.row] objectForKey:@"select"] isEqualToString:@"0"]) { cell.accessoryType = UITableViewCellAccessoryCheckmark; } else cell.accessoryType = UITableViewCellAccessoryNone; } // Set up the cell... return cell; } I am trying to use indexPath.row but its values initialises from 0 in every section I can not get data from array in this case as i dont have index of array to get data. How will i get the index of array whose values i need to display????

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• Rails from with better url

  - by Sam

  wow, switching to rest is a different paradigm for sure and is mainly a headache right now. view <% form_tag (businesses_path, :method => "get") do %> <%= select_tag :business_category_id, options_for_select(@business_categories.collect {|bc| [bc.name, bc.id ]}.insert(0, ["All Containers", 0]), which_business_category(@business_category) ), { :onchange => "this.form.submit();"} %> <% end %> controller def index @business_categories = BusinessCategory.find(:all) if params[:business_category_id].to_i != 0 @business_category = BusinessCategory.find(params[:business_category_id]) @businesses = @business_category.businesses else @businesses = Business.all end respond_to do |format| format.html # index.html.erb format.xml { render :xml => @businesses } end end routes map.resources What I want to to is get a better url than what this form is presenting which is the following: http://localhost:3000/businesses?business_category_id=1 Without rest I would have do something like http://localhost:3000/business/view/bbq bbq as permalink or I would have done http://localhost:300/business_categories/view/bbq and get the business that are associated with the category but I don't really know the best way of doing this. So the two questions are what is the best logic of finding a business by its categories using the latter form and number two how to get that in a pretty url all through restful routes in rails.

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• make selectable area using javascript

  - by Mher

  lets say I have a html page. <html> <body> ... This is my HTML Page, full of html objects and mouse events on them ... <div id='blocker' style="height: 100%; position: absolute; width: 100%; top: 0px; left: 0px; right: 0px; bottom: 0px; z-index: 1001; background: none repeat scroll 0% 0% black; opacity: 0.5;"></div> <div id='window_to_my_html_page' style="display: block; left: 50px; top: 50px; width: 200px; height: 200px; z-index: 1002; position: absolute;"></div> </body> </html> In this example div which id is 'blocker' will block all mouse events from my page. All my HTML page elements behind of my second div(which id is 'window_to_my_html_page') must be active, all mouse events must work on them, this div must be like a window to my HTML page I want to make all elements from my HTML page active(to work as normal) inside this area (left: 50px; top: 50px; width: 200px; height: 200px).... and other content, outside of this area make inactive The question: how can I do it?

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• PHP: Trying to come up with a "prev" and "next" link

  - by fwaokda

  I'm displaying 10 records per page. The variables I have currently that I'm working with are.. $total = total number of records $page = whats the current page I'm displaying I placed this at the top of my page... if ( $_GET['page'] == '' ) { $page = 1; } //if no page is specified set it to `1` else { $page = ($_GET['page']); } // if page is specified set it Here are my two links... if ( $page != 1 ) { echo '<div style="float:left" ><a href="index.php?page='. ( $page - 1 ) .'" rev="prev" >Prev</a></div>'; } if ( !( ( $total / ( 10 * $page ) ) < $page ) ) { echo '<div style="float:right" ><a href="index.php?page='. ( $page + 1 ) .'" rev="next" >Next</a></div>'; } Now I guess (unless I'm not thinking of something) that I can display the "Prev" link every time except when the page is '1'. How can make it where the "Next" link doesn't show on the last page though?

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• ASP.NET MVC: How to show value in a label from selected Drop Down List item?

  - by Lillie

  Hi! I'm trying to show a value of selected Drop Down List item in a label. I managed to make this work with Web Forms but with MVC I'm totally lost. My Index looks like this: [...] <% using (Html.BeginForm()) { %> <table> <tr> <td>Processor</td> <td><%= Html.DropDownList("lstProcessor1", new SelectList((IEnumerable)ViewData["Processor1List"], "product_price", "product_description")) %></td> </tr> <tr> <td>Total Amount</td> <td>0,00 €</td> </tr> </table> <input type="submit" value="Submit" /> <% } %> [...] And my HomeController starts with: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using System.Web.Mvc.Ajax; using MvcApplication1.Models; namespace MvcApplication1.Controllers { [HandleError] public class HomeController : Controller { // Connect database DB50DataContext _ctx = new DB50DataContext(); // GET: /Home/ public ActionResult Index() { // Search: Processors var products = from prod in _ctx.products where prod.product_searchcode == "processor1" select prod; ViewData["Processort1List"] = products; return View(); } I would like the product_price to show on the second line of the table, where it now says 0,00 €. It should also update the price automatically when the item from the Drop Down List is changed. I guess I should use JQuery but I have no idea how. Could someone please give me some tips how to do this?

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• geb StaleElementReferenceException

  - by Brian Mortenson

  I have just started using geb with webdriver for automating testing. As I understand it, when I define content on a page, the page element should be looked up each time I invoke a content definition. //In the content block of SomeModule, which is part of a moduleList on the page: itemLoaded { waitFor{ !loading.displayed } } loading { $('.loading') } //in the page definition moduleItems {index -> moduleList SomeModule, $("#module-list > .item"), index} //in a test on this page def item = moduleItems(someIndex) assert item.itemLoaded So in this code, I think $('.loading') should be called repeatedly, to find the element on the page by its selector, within the context of the module's base element. Yet I sometimes get a StaleElementReference exception at this point. As far as I can tell, the element does not get removed from the page, but even if it does, that should not produce this exception unless $ is doing some caching behind the scenes, but if that were the case it would cause all sorts of other problems. Can someone help me understand what's happening here? Why is it possible to get a StaleElementReferenceException while looking up an element? A pointer to relevant documentation or geb source code would be useful as well.

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• I can't find the homepage for my ASP.NET MVC site :(

  - by Pure.Krome

  Hi folks, really simple question here. when I remove the default route, I returns an empty page to the browser :- routes.MapRoute( "Default", // Route name "{controller}/{action}/{id}", // URL with parameters new { controller = "Home", action = "Index", id = UrlParameter.Optional } ); Now before everyone starts shouting "that's because that's the default route to access all action methods, etc.." .. i know that. My question is - what code / routes does the default framework try and call .. which makes that Default Route get used/kick in? Why? I don't wish to make that my default route regex (don't ask why - this is some R&D) but I still need the main home page .. ie. Home/Index . If i try and just add that route, it doesn't get called and an empty page is returned. So -- what does the framework try and call when a user doesn't provide any urls? It's like there's some secret default document stuff set up? Cheers :)

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• Fade in and out a div contains video embedHTML in jquery

  - by Ahmy

  I have a div and three links when a link is clicked the div is set its innerHTML with an embedHTML of video and i need to cause some effects when the current div video is changed on clicking the link Example : <a id="Link1" onClick="ChangeVideo(1)">Link1</a> <a id="Link2" onClick="ChangeVideo(2)">Link2</a> <a id="Link3" onClick="ChangeVideo(3)">Link3</a> <div id="CurrVideo"></div> <script type="text/javascript" language="javascript"> //The ArrEmbed is an array that is set on the load of the page:: var ArrEmbed = new Array(); function ChangeVideo(index) { $('#CurrVideo).fadeTo(1000,0.25,function(){ document.getElementById("CurrVideo").innerHTML = ArrEmbed[index-1]; }); $('#CurrVideo).fadeTo(500,1.25); } </script> The effect is not noticeable and fading with opacity diminshing is not noticed even if the duration time is increased (e.g. 'slow') and when i replace the EmbedHTML with image this code is applicable and the effect of fading is noticed but with the video it is not noticeable so how can i solve this problem ? Thanks in advance for any try Note: The embedHTML differ as it may come from youtube or any server or from my JWPlayer.

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• Specific path to java class file when embedded into HTML; Help urgent

  - by Jeevanism

  This is a resonant post to one of my other query due to an error with Java applet embedded into CMS pages. well, I tell issue:- Problem:- I have a website using Concrete 5 CMS, in which I have a page that I have embedded a Java applet class. This applet should show the system information which this applet is working fine in simple single HTML pages. now whenever I access my plugin Test page which created in Concrete 5 CMS (this page I embedded this java applet), it shows a Java error. The error is says incompatible Magic Number. Observation:- After a lot of searching through various tech forums, I finally found that, the issue is happened because the browser cannot load Java class file. The class file path location is wrong. Here below I post the log of server access when I test in my local machine. 127.0.0.1 - - [20/Dec/2012:12:59:28 +0800] "GET /linuxhouse/index.php/techlab/java/testvm.class HTTP/1.1" 200 1896 "-" "Mozilla/4.0 (Linux 2.6.37.6-0.9-desktop) Java/1.6.0_29" 127.0.0.1 - - [20/Dec/2012:12:59:29 +0800] "GET /linuxhouse/index.php/techlab/java/testvm.class HTTP/1.1" 200 1896 "-" "Mozilla/4.0 (Linux 2.6.37.6-0.9-desktop) Java/1.6.0_29" <<<<<<<<<<<<<<<<<<<<< Clearly, the path to Java class file is wrong. But I have no idea how to specify exact path in an embedded code. Is this a CMS specific issue. I have disabled Pretty URL feature of CMS. But still I cannot find the solution. here the referred Page that shows the java error. http://www.linux-house.net/v3/techlab/plugin pls pls give some insight..URGENT SOS

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• UITableView which has sections as alphabets and various rows within each section

  - by lifemoves

  Hello I have a database in which I am inserting data by parsing an XML document. Populating the data using Navigation bar control view. I have various NSObjects defined in a class and have populated the data using NSMutableArray. Using UITableview I have populated the data. My question is : I have populated the data with the sections defined in it as alphabets so I have total of 26 sections. Each section has data in form of name. Now when I use cellforrowatIndexpath it does not give me the correct index for row and section together. My code is : (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; } /* Index names as in AB ....Z */ NSString *strIndexNames = [arrCharacters objectAtIndex:indexPath.section]; /* object sections has names in each section */ NSArray *arrIndexedCategories = [objSections objectForKey:strIndexNames]; NSString *strName = [arrIndexedCategories objectAtIndex:indexPath.row] ; cell.textLabel.text = strName; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; cell.textLabel.font = [UIFont systemFontOfSize:16]; return cell; } Any help whatsoever will be really helpful. S

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• comparision of strings

  - by EmiLazE

  i am writing a program, that simulates game mastermind. but i am struggling on how to compare guessed pattern to key pattern. the game conditions are a little bit changed: patterns consist of letters. if an element of guessed pattern is equal to element of key pattern, and also index is equal, then print b. if an element of guessed pattern is equal to element of key pattern, but index is not, then print w. if an element of guessed pattern is not equal to element of key pattern, print dot. in feedback about guessed pattern, 'b's come first, 'w's second, '.'s last. my problem is that i cannot think of a way totally satisfies the answer. for (i=0; i<patternlength; i++) { for (x=0; x<patternlength; x++) { if (guess[i]==key[x] && i==x) printf("b"); if (guess[i]==key[x] && i!=x) printf("w"); if (guess[i]!=key[x]) printf("."); } }

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• document.getElementById('form_name').submit() not working properly

  - by Leahn Novash

  Ok, I will try to give the most details I can. The site is not suposed to work with IE6. It would be nice if it worked with IE8 and Chrome, but that can be done later. The site is in PHP. The form where the submit is in another PHP file that is included in position on the index.php inside of a DIV tag. If I open the form solely, the submit works correcly, but when I try to submit on the index page, the Firefox error console says that document is undefined. The form code is echoed line by line via PHP. Save the text fields for username and password, the form code is the following: <form id="entrar" action="entrar.php" method="post" onsubmit="javascript:checkvalues();"> <a href="javascript:document.getElementById('entrar').submit();">ENTRAR</a> </form> What's the big deal? What am I missing here? I know it is something very silly but I can't figure it out.

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• List of Lists of different types

  - by themarshal

  One of the data structures in my current project requires that I store lists of various types (String, int, float, etc.). I need to be able to dynamically store any number of lists without knowing what types they'll be. I tried storing each list as an object, but I ran into problems trying to cast back into the appropriate type (it kept recognizing everything as a List<String>). For example: List<object> myLists = new List<object>(); public static void Main(string args[]) { // Create some lists... // Populate the lists... // Add the lists to myLists... for (int i = 0; i < myLists.Count; i++) { Console.WriteLine("{0} elements in list {1}", GetNumElements(i), i); } } public int GetNumElements(int index) { object o = myLists[index]; if (o is List<int>) return (o as List<int>).Count; if (o is List<String>) // <-- Always true!? return (o as List<String>).Count; // <-- Returning 0 for non-String Lists return -1; } Am I doing something incorrectly? Is there a better way to store a list of lists of various types, or is there a better way to determine if something is a list of a certain type?

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• Iterating Through N Level Children

  - by bobber205

  This seems like something neat that might be "built into" jQuery but I think it's still worth asking. I have a problem where that can easily be solved by iterating through all the children of a element. I've recently discovered I need to account for the cases where I would need to do a level or two deeper than the "1 level" (just calling .children() once) I am currently doing. jQuery.each(divToLookAt.children(), function(index, element) { //do stuff } ); This is what I'm current doing. To go a second layer deep, I run another loop after doing stuff code for each element. jQuery.each(divToLookAt.children(), function(index, element) { //do stuff jQuery.each(jQuery(element).children(), function(indexLevelTwo, elementLevelTwo) { //do stuff } ); } ); If I want to go yet another level deep, I have to do this all over again. This is clearly not good. I'd love to declare a "level" variable and then have it all take care of. Anyone have any ideas for a clean efficient jQueryish solution? Thanks!

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• rails restful select_tag with :on_change

  - by Sam

  So I'm finally starting to use rest in rails. I want to have a select_tag with product categories and when one of the categories is selected I want it to update the products on change. I did this before with <% form_for :category, :url => { :action => "show" } do |f| %> <%= select_tag :id, options_from_collection_for_select(Category.find(:all), :id, :name), { :onchange => "this.form.submit();"} %> <% end %> however now it doesn't work because it tries to do the show action. I have two controllers 1) products 2) product_categories products belongs_to product_categories with a has_many How should I do this. Since the products are listed on the products controller and index action should I use the products controller or should I use the product_categories controller to find the category such as in the show action and then render the product/index page. But the real problem I have is how to get this form or any other option to work with restful routes.

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• jQuery, ASP.NET, and Browser History

  - by Stephen Walther

  One objection that people always raise against Ajax applications concerns browser history. Because an Ajax application updates its content by performing sneaky Ajax postbacks, the browser backwards and forwards buttons don’t work as you would normally expect. In a normal, non-Ajax application, when you click the browser back button, you return to a previous state of the application. For example, if you are paging through a set of movie records, you might return to the previous page of records. In an Ajax application, on the other hand, the browser backwards and forwards buttons do not work as you would expect. If you navigate to the second page in a list of records and click the backwards button, you won’t return to the previous page. Most likely, you will end up navigating away from the application entirely (which is very unexpected and irritating). Bookmarking presents a similar problem. You cannot bookmark a particular page of records in an Ajax application because the address bar does not reflect the state of the application. The Ajax Solution There is a solution to both of these problems. To solve both of these problems, you must take matters into your own hands and take responsibility for saving and restoring your application state yourself. Furthermore, you must ensure that the address bar gets updated to reflect the state of your application. In this blog entry, I demonstrate how you can take advantage of a jQuery library named bbq that enables you to control browser history (and make your Ajax application bookmarkable) in a cross-browser compatible way. The JavaScript Libraries In this blog entry, I take advantage of the following four JavaScript files: jQuery-1.4.2.js – The jQuery library. Available from the Microsoft Ajax CDN at http://ajax.microsoft.com/ajax/jquery/jquery-1.4.2.js jquery.pager.js – Used to generate pager for navigating records. Available from http://plugins.jquery.com/project/Pager microtemplates.js – John Resig’s micro-templating library. Available from http://ejohn.org/blog/javascript-micro-templating/ jquery.ba-bbq.js – The Back Button and Query (BBQ) Library. Available from http://benalman.com/projects/jquery-bbq-plugin/ All of these libraries, with the exception of the Micro-templating library, are available under the MIT open-source license. The Ajax Application Let’s start by building a simple Ajax application that enables you to page through a set of movie database records, 3 records at a time. We’ll use my favorite database named MoviesDB. This database contains a Movies table that looks like this: We’ll create a data model for this database by taking advantage of the ADO.NET Entity Framework. The data model looks like this: Finally, we’ll expose the data to the universe with the help of a WCF Data Service named MovieService.svc. The code for the data service is contained in Listing 1. Listing 1 – MovieService.svc using System.Data.Services; using System.Data.Services.Common; namespace WebApplication1 { public class MovieService : DataService<MoviesDBEntities> { public static void InitializeService(DataServiceConfiguration config) { config.SetEntitySetAccessRule("Movies", EntitySetRights.AllRead); config.DataServiceBehavior.MaxProtocolVersion = DataServiceProtocolVersion.V2; } } } The WCF Data Service in Listing 1 exposes the movies so that you can query the movie database table with URLs that looks like this: http://localhost:2474/MovieService.svc/Movies -- Returns all movies http://localhost:2474/MovieService.svc/Movies?$top=5 – Returns 5 movies The HTML page in Listing 2 enables you to page through the set of movies retrieved from the WCF Data Service. Listing 2 – Original.html <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Movies with History</title> <link href="Design/Pager.css" rel="stylesheet" type="text/css" /> </head> <body> <h1>Page <span id="pageNumber"></span> of <span id="pageCount"></span></h1> <div id="pager"></div> <br style="clear:both" /><br /> <div id="moviesContainer"></div> <script src="http://ajax.microsoft.com/ajax/jquery/jquery-1.4.2.js" type="text/javascript"></script> <script src="App_Scripts/Microtemplates.js" type="text/javascript"></script> <script src="App_Scripts/jquery.pager.js" type="text/javascript"></script> <script type="text/javascript"> var pageSize = 3, pageIndex = 0; // Show initial page of movies showMovies(); function showMovies() { // Build OData query var query = "/MovieService.svc" // base URL + "/Movies" // top-level resource + "?$skip=" + pageIndex * pageSize // skip records + "&$top=" + pageSize // take records + " &$inlinecount=allpages"; // include total count of movies // Make call to WCF Data Service $.ajax({ dataType: "json", url: query, success: showMoviesComplete }); } function showMoviesComplete(result) { // unwrap results var movies = result["d"]["results"]; var movieCount = result["d"]["__count"] // Show movies using template var showMovie = tmpl("<li><%=Id%> - <%=Title %></li>"); var html = ""; for (var i = 0; i < movies.length; i++) { html += showMovie(movies[i]); } $("#moviesContainer").html(html); // show pager $("#pager").pager({ pagenumber: (pageIndex + 1), pagecount: Math.ceil(movieCount / pageSize), buttonClickCallback: selectPage }); // Update page number and page count $("#pageNumber").text(pageIndex + 1); $("#pageCount").text(movieCount); } function selectPage(pageNumber) { pageIndex = pageNumber - 1; showMovies(); } </script> </body> </html> The page in Listing 3 has the following three functions: showMovies() – Performs an Ajax call against the WCF Data Service to retrieve a page of movies. showMoviesComplete() – When the Ajax call completes successfully, this function displays the movies by using a template. This function also renders the pager user interface. selectPage() – When you select a particular page by clicking on a page number in the pager UI, this function updates the current page index and calls the showMovies() function. Figure 1 illustrates what the page looks like when it is opened in a browser. Figure 1 If you click the page numbers then the browser history is not updated. Clicking the browser forward and backwards buttons won’t move you back and forth in browser history. Furthermore, the address displayed in the address bar does not change when you navigate to different pages. You cannot bookmark any page except for the first page. Adding Browser History The Back Button and Query (bbq) library enables you to add support for browser history and bookmarking to a jQuery application. The bbq library supports two important methods: jQuery.bbq.pushState(object) – Adds state to browser history. jQuery.bbq.getState(key) – Gets state from browser history. The bbq library also supports one important event: hashchange – This event is raised when the part of an address after the hash # is changed. The page in Listing 3 demonstrates how to use the bbq library to add support for browser navigation and bookmarking to an Ajax page. Listing 3 – Default.html <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Movies with History</title> <link href="Design/Pager.css" rel="stylesheet" type="text/css" /> </head> <body> <h1>Page <span id="pageNumber"></span> of <span id="pageCount"></span></h1> <div id="pager"></div> <br style="clear:both" /><br /> <div id="moviesContainer"></div> <script src="http://ajax.microsoft.com/ajax/jquery/jquery-1.4.2.js" type="text/javascript"></script> <script src="App_Scripts/jquery.ba-bbq.js" type="text/javascript"></script> <script src="App_Scripts/Microtemplates.js" type="text/javascript"></script> <script src="App_Scripts/jquery.pager.js" type="text/javascript"></script> <script type="text/javascript"> var pageSize = 3, pageIndex = 0; $(window).bind('hashchange', function (e) { pageIndex = e.getState("pageIndex") || 0; pageIndex = parseInt(pageIndex); showMovies(); }); $(window).trigger('hashchange'); function showMovies() { // Build OData query var query = "/MovieService.svc" // base URL + "/Movies" // top-level resource + "?$skip=" + pageIndex * pageSize // skip records + "&$top=" + pageSize // take records +" &$inlinecount=allpages"; // include total count of movies // Make call to WCF Data Service $.ajax({ dataType: "json", url: query, success: showMoviesComplete }); } function showMoviesComplete(result) { // unwrap results var movies = result["d"]["results"]; var movieCount = result["d"]["__count"] // Show movies using template var showMovie = tmpl("<li><%=Id%> - <%=Title %></li>"); var html = ""; for (var i = 0; i < movies.length; i++) { html += showMovie(movies[i]); } $("#moviesContainer").html(html); // show pager $("#pager").pager({ pagenumber: (pageIndex + 1), pagecount: Math.ceil(movieCount / pageSize), buttonClickCallback: selectPage }); // Update page number and page count $("#pageNumber").text(pageIndex + 1); $("#pageCount").text(movieCount); } function selectPage(pageNumber) { pageIndex = pageNumber - 1; $.bbq.pushState({ pageIndex: pageIndex }); } </script> </body> </html> Notice the first chunk of JavaScript code in Listing 3: $(window).bind('hashchange', function (e) { pageIndex = e.getState("pageIndex") || 0; pageIndex = parseInt(pageIndex); showMovies(); }); $(window).trigger('hashchange'); When the hashchange event occurs, the current pageIndex is retrieved by calling the e.getState() method. The value is returned as a string and the value is cast to an integer by calling the JavaScript parseInt() function. Next, the showMovies() method is called to display the page of movies. The $(window).trigger() method is called to raise the hashchange event so that the initial page of records will be displayed. When you click a page number, the selectPage() method is invoked. This method adds the current page index to the address by calling the following method: $.bbq.pushState({ pageIndex: pageIndex }); For example, if you click on page number 2 then page index 1 is saved to the URL. The URL looks like this: Notice that when you click on page 2 then the browser address is updated to look like: /Default.htm#pageIndex=1 If you click on page 3 then the browser address is updated to look like: /Default.htm#pageIndex=2 Because the browser address is updated when you navigate to a new page number, the browser backwards and forwards button will work to navigate you backwards and forwards through the page numbers. When you click page 2, and click the backwards button, you will navigate back to page 1. Furthermore, you can bookmark a particular page of records. For example, if you bookmark the URL /Default.htm#pageIndex=1 then you will get the second page of records whenever you open the bookmark. Summary You should not avoid building Ajax applications because of worries concerning browser history or bookmarks. By taking advantage of a JavaScript library such as the bbq library, you can make your Ajax applications behave in exactly the same way as a normal web application.

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• CodePlex Daily Summary for Sunday, March 13, 2011

  CodePlex Daily Summary for Sunday, March 13, 2011Popular ReleasesImage.Viewer: 2011.2: Whats new for Image.Viewer 2011.2: New open from file New about dialog Minor Bug Fix's, improvements and speed upsIronPython: 2.7: On behalf of the IronPython team, I'm very pleased to announce the release of IronPython 2.7. This release contains all of the language features of Python 2.7, as well as several previously missing modules and numerous bug fixes. IronPython 2.7 also includes built-in Visual Studio support through IronPython Tools for Visual Studio. IronPython 2.7 requires .NET 4.0 or Silverlight 4. To download IronPython 2.7, visit http://ironpython.codeplex.com/releases/view/54498. Any bugs should be report...XML Explorer: XML Explorer 4.0.2: Changes in 4.0: This release is built on the Microsoft .NET Framework 4 Client Profile. Changed XSD validation to use the schema specified by the XML documents. Added a VS style Error List, double-clicking an error takes you to the offending node. XPathNavigator schema validation finally gives SourceObject (was fixed in .NET 4). Added Namespaces window and better support for XPath expressions in documents with a default namespace. Added ExpandAll and CollapseAll toolbar buttons (in a...Mobile Device Detection and Redirection: 1.0.0.0: Stable Release 51 Degrees.mobi Foundation has been in beta for some time now and has been used on thousands of websites worldwide. We’re now highly confident in the product and have designated this release as stable. We recommend all users update to this version. New Capabilities MappingsTo improve compatibility with other libraries some new .NET capabilities are now populated with wurfl data: “maximumRenderedPageSize” populated with “max_deck_size” “rendersBreaksAfterWmlAnchor” populated ...Composite C1 CMS: Composite C1 2.1 (2.1.4087.22991): Composite C1 is a fully featured pro open source CMS for quick/custom website creation. Modern architecture, very user friendly. Use wizards or HTML/CSS/XSLT/ASP.NET/LINQ/.NET4ASP.NET MVC Project Awesome, jQuery Ajax helpers (controls): 1.7.3: A rich set of helpers (controls) that you can use to build highly responsive and interactive Ajax-enabled Web applications. These helpers include Autocomplete, AjaxDropdown, Lookup, Confirm Dialog, Popup Form, Popup and Pager added interactive search for the lookupWPF Inspector: WPF Inspector 0.9.7: New Features in Version 0.9.7 - Support for .NET 3.5 and 4.0 - Multi-inspection of the same process - Property-Filtering for multiple keywords e.g. "Height Width" - Smart Element Selection - Select Controls by clicking CTRL, - Select Template-Parts by clicking CTRL+SHIFT - Possibility to hide the element adorner (over the context menu on the visual tree) - Many bugfixes??????????: All-In-One Code Framework ??? 2011-03-10: http://download.codeplex.com/Project/Download/FileDownload.aspx?ProjectName=1codechs&DownloadId=216140 ??，????。??????????All-In-One Code Framework ???，??20?Sample！！????，?????。http://i3.codeplex.com/Project/Download/FileDownload.aspx?ProjectName=1code&DownloadId=128165 ASP.NET ??： CSASPNETBingMaps VBASPNETRemoteUploadAndDownload CS/VBASPNETSerializeJsonString CSASPNETIPtoLocation CSASPNETExcelLikeGridView ....... Winform??： FTPDownload FTPUpload MultiThreadedWebDownloader...Rawr: Rawr 4.1.0: Rawr is now web-based. The link to use Rawr4 is: http://elitistjerks.com/rawr.phpThis is the Cataclysm Release. More details can be found at the following link http://rawr.codeplex.com/Thread/View.aspx?ThreadId=237262 As of the 4.0.16 release, you can now also begin using the new Downloadable WPF version of Rawr!This is a Release of the WPF version, most of the general issues have been resolved. If you have a problem, please follow the Posting Guidelines and put it into the Issue Tracker. Whe...PHP Manager for IIS: PHP Manager 1.1.2 for IIS 7: This is a localization release of PHP Manager for IIS 7. It contains all the functionality available in 56962 plus a few bug fixes (see change list for more details). Most importantly this release is translated into five languages: German - the translation is provided by Christian Graefe Dutch - the translation is provided by Harrie Verveer Turkish - the translation is provided by Yusuf Oztürk Japanese - the translation is provided by Kenichi Wakasa Russian - the translation is provid...TweetSharp: TweetSharp v2.0.0: Documentation for this release may be found at http://tweetsharp.codeplex.com/wikipage?title=UserGuide&referringTitle=Documentation. Beta ChangesAdded user streams support Serialization is not attempted for Twitter 5xx errors Fixes based on feedback Third Party Library VersionsHammock v1.2.0: http://hammock.codeplex.com Json.NET 4.0 Release 1: http://json.codeplex.comDirectQ: Release 1.8.7 (RC2): More fixes and improvements. Note for multiplayer - you may need to set r_waterwarp to 0 or 2 before connecting to a server, otherwise you will get a "Mod_PointInLeaf: bad model" error and not be able to connect. You can set it back to 1 after you connect, of course. This only came to light after releasing, and will be fixed in the next one.Microsoft All-In-One Code Framework - a centralized code sample library: Visual Studio 2008 Code Samples 2011-03-09: Code samples for Visual Studio 2008Office Web.UI: Version 2.4: After having lost all modifications done for 2.3. I finally did it again... Have a look at http://www.officewebui.com/change-log Also, the documentation continues to grow... http://www.officewebui.com/category/kb ThanksmyCollections: Version 1.3: New in version 1.3 : Added Editor management for Books Added Amazon API for Books Us, Fr, De Added Amazon Us, Fr, De for Movies Added The MovieDB for Fr and De Added Author for Books Added Editor and Platform for Games Added Amazon Us, De for Games Added Studio for XXX Added Background for XXX Bug fixing with Softonic API Bug fixing with IMDB UI improvement Removed GraceNote Added Amazon Us,Fr, De for Series Added TVDB Fr and De for Series Added Tracks for Musi...patterns & practices : Composite Services: Composite Services Guidance - CTP2: Overview The Composite Services guidance (codename Reykjavik) provides best practices and capabilities for applying industry-known SOA design patterns when building robust, connected, service-oriented composite enterprise applications. These capabilities are implemented as a set of reusable components for analytic tracing, service virtualization, metadata centralization and versioning, and policy centralization as well as exception management, included in this release. Changes in this CTP ...Python Tools for Visual Studio: 1.0 Beta 1: Beta 1You can't install IronPython Tools for Visual Studio side-by-side with Python Tools for Visual Studio. A race condition sometimes causes local MPI debugging to miss breakpoints. When MPI jobs on a cluster fail they don’t get cleaned up correctly, which can cause debugging to stall because the associated MPI job is stuck in the queue. The "Threads" view has a race condition which can cause it not to display properly at times. VS2010 shortcuts that are pinned to the taskbar are so...DotNetAge -a lightweight Mvc jQuery CMS: DotNetAge 2: What is new in DotNetAge 2.0 ? Completely update DJME to DJME2, enhance user experience ,more beautiful and more interactively visit DJME project home to lean more about DJME http://www.dotnetage.com/sites/home/djme.html A new widget engine has came! Faster and easiler. Runtime performance enhanced. SEO enhanced. UI Designer enhanced. A new web resources explorer. Page manager enhanced. BlogML supports added that allows you import/export your blog data to/from dotnetage publishi...Kooboo CMS: Kooboo CMS 3.0 Beta: Files in this downloadkooboo_CMS.zip: The kooboo application files Content_DBProvider.zip: Additional content database implementation of MSSQL,SQLCE, RavenDB and MongoDB. Default is XML based database. To use them, copy the related dlls into web root bin folder and remove old content provider dlls. Content provider has the name like "Kooboo.CMS.Content.Persistence.SQLServer.dll" View_Engines.zip: Supports of Razor, webform and NVelocity view engine. Copy the dlls into web root bin folder t...LINQ to Twitter: LINQ to Twitter Beta v2.0.20: Mono 2.8, Silverlight, OAuth, 100% Twitter API coverage, streaming, extensibility via Raw Queries, and added documentation.New ProjectsAxvius.Testing.NUnit: Provides fluent assertion methods for NUnit.Azure Conversion plugin for VS 2010: Azure Conversion Wizard is a plugin for VS 2010. The wizard converts your AZP.NET solutions for .NET 3.5 and higher to Windows Azure Platform. BlogSpam.net API: A simple C#.NET wrapper for the BlogSpam.net comment spam service.Bonyad Project Managing System: This is for managing bonyad projects.Camp Araminta: This project will be used to coordinate development efforts on the Camp Araminta website.code: This is demo summary ! Education Fellows Meta Service: Rebranded LaEMWS.Family Guide: This project is currently just for learning purposes. But it shall evolve to a fully functional solution later.HL7.NET: HL7.net groups all the neccessary code for managing HL7 standard. It makes it easy to add HL7 interoperability to your application. It is developed in C#.NETHyper-V Monitor Gadget: Hyper-V Monitor Gadget for Windows Sidebar that lists Hyper-V servers and their VM's. Supports status information and controlling them directly from the gadget.jp110311: Azure 312 ??????????? Azure ????????????????????????????????????????。Lugene: Index generation and distribution framework based on Lucene.net and index schemas provided by Lumen. Includes support for incremental updates of indexes, and a plugin framework for custom index providers.Planet Me: ...poc Dev: this is pco projectProcon 2: Procon Frostbite, rebuilt from the ground up.RandomNumbersGames: Small random numbers game which very helpful for people who want to develop their focusSistema Creeo: Sistema de Gestão de clínicasSPDiscussionBoard: SPDiscussionBoard started on 2005 while developing an ASP.NET forum and taking into consideration that I may use it on SharePoint in a day. Yesterday I remembered that, and started to alter it to run as a webpart inside SharePoint 2010, and it took about 4 hours to work.Video Commander: VideoCommander is an external control interface for vlc player. It enables the user to create play lists with start- and stop time and to play videos on a specified display. VideoCommander was especially developed for presenting videos on events like church services or theater.Windows Live Writer - Insert Tag Snippet Plugin: Insert Tag Snippet plugin is used to select a snippet from a collection of "user" defined snippets and insert it to the post. Prefix and suffix tags can also be defined. Especially useful for <code> and <pre> kind of tags. With Insert Tag Snippet plugin, you don't need to switch back to HTML view and than back to normal view again. The code is open for all communities' members to see how to develop a plugin for Windows Live Writer using C#.WMI Connection for ADO.NET: A lot of application have excellent support for ADO.NET connections. But many of them weren't desigend to work with WMI (Windows Management Instrumentation). This project puts them together, and adds the capability to access WMI data through the IDBConnection interface.Zugger: Zugger is an assistant application for those people who are using Zentao PMS. It provides the functions: 1. Your the counts of your bugs and tasks. 2. The lists of bugs and tasks. 3. Quick edit for bugs and tasks. 4. Notification of new bugs and tasks. It is developed in C# WPF

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• TSQL Cascade delete for child records?

  - by ElHaix

  I have a parent/child table (simple tree) table structure (ID, ParentID), where I want to delete (and get the ID of) all children for a given parent ID - similar to this post http://stackoverflow.com/questions/1433808/sql-server-cascade-delete-and-parent-child-table . During the loop, where I've got the current ID, I will also be performing other actions with this ID. Can someone give me an example of the SPROC to accomplish this? Thanks

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• dynamic ContextMenu in TreeView vs. MVVM

  - by bitbonk

  I have a tree of ViewModels displayed as a TreeView (using HierarchicalDataTemplate). Each ViewModel instance has different commands that can be executed on it wich again are exposed as a list of command ViewModels for each item ViewModel. How can I create a single ContextMenu that opens at the TreeViewItem that was rightclicked and that populates its commands from the underlying item ViewModel's command ViewModels list? All in a decent MVVM fashion ...

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• WPF TreeView - How to scroll so expanded branch is visible

  - by Jared

  When I expand items in my treeview so that scrolling is necessary, a scrollbar appears. However, it doesn't scroll down for the newly expanded branch of items - they get cropped by the bottom of the control. So as I continue expanding items at the bottom of the tree, I have to keep manually scrolling down to see the new children. Anyone have a suggestion for how make it automatically scroll to show the newly expanded items?

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• Delete Nodes + attributes that match Xpath except specific attributes

  - by Ryan Ternier

  I'm trying to find the best (efficient) way of doing this. I have a medium sized XML document. Depending on specific settings certain portions of it need to be filtered out for security reasons. I'll be doing this in XSLT as it's configurable and no code should need changing. I've looked around, but not getting much luck on it. For example: I have the following XPath: //*[@root='2.16.840.1.113883.3.51.1.1.6.1'] Whicrooth gives me all nodes with a root attribute equal to a specific OID. In these nodes I want to have all attributes except for a few (ex. foo and bar) erased, and then having another attribute added (ex. reason) I also need to have multiple XPath expressions that can be ran to zero down on a specific node and clear it's contents out in a similar fashion, with respect to nodes with specific attributes. I'm playing around with information from: XPath expression to select all XML child nodes except a specific list? and XSLT Remove Elements and/or Attributes by Name per XSL Parameters Will update shortly when I can have access what what I"ve done so far. Example: XML Before Transformation <root> <childNode> <innerChild root="2.16.840.1.113883.3.51.1.1.6.1" a="b" b="c" type="innerChildness"/> <innerChildSibling/> </childNode> <animals> <cat> <name>bob</name> </cat> </animals> <tree/> <water root="2.16.840.1.113883.3.51.1.1.6.1" z="zed" l="ell" type="liquidLIke"/> </root> After <root> <childNode> <innerChild root="2.16.840.1.113883.3.51.1.1.6.1" flavor="MSK"/> <!-- filtered --> <innerChildSibling/> </childNode> <animals> <cat flavor="MSK" /> <!-- cat was filtered --> </animals> <tree/> <water root="2.16.840.1.113883.3.51.1.1.6.1" flavor="MSK"/> <!-- filtered --> </root>

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