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  • Difference between 'scope' and 'namespace'?

    - by katriel
    What is the difference, in general, between the concepts of namespaces and scope? To my understanding, both describe the parts of a program in which a variable/object/method/function will be accessible. I understand that 'scope' tends to be a property of the variable (e.g., "This variable has global scope"), while a 'namespace' is a property of the program (e.g., "A Python function creates a local namespace"). Are there other differences? Global scope vs global namespace addresses a slightly narrower question: global namespaces in C++. http://www.alan-g.me.uk/tutor/tutname.htm states, There are a few very subtle differences between the terms but only a Computer Scientist pedant would argue with you, and for our purposes namespace and scope are identical. What are those subtle differences? Under what circumstances or with which kinds of languages do people use each concept?

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  • JQuery autocomplete: is not working asp.net

    - by Abu Hamzah
    is that something wrong in the below code? its not firing at all edit <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="HostPage.aspx.cs" Inherits="HostPage" %> <!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 runat="server"> <title>Untitled Page</title> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js"></script> <link rel="stylesheet" href="http://dev.jquery.com/view/trunk/plugins/autocomplete/jquery.autocomplete.css" type="text/css" /> <script type="text/javascript" src="http://dev.jquery.com/view/trunk/plugins/autocomplete/jquery.autocomplete.js"></script> </head> <body> <form id="form1" runat="server"> <script type="text/javascript"> $(document).ready(function() { $("#<%=txtHost.UniqueID %>").autocomplete("HostService.asmx/GetHosts", { dataType: 'json' , contentType: "application/json; charset=utf-8" , parse: function(data) { var rows = Array(); debugger for (var i = 0; i < data.length; i++) { rows[i] = { data: data[i], value: data[i].LName, result: data[i].LName }; } return rows; } , formatItem: function(row, i, max) { return data.LName + ", " + data.FName; } }); }); </script> <div> <asp:Label runat="server" ID='Label4' >Host Name:</asp:Label> <asp:TextBox ID="txtHost" runat='server'></asp:TextBox> <p> </div> </form> </body> </html>

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  • An IOCP documentation interpretation question - buffer ownership ambiguity

    - by Poni
    Since I'm not a native English speaker I might be missing something so maybe someone here knows better than me. Taken from WSASend's doumentation at MSDN: lpBuffers [in] A pointer to an array of WSABUF structures. Each WSABUF structure contains a pointer to a buffer and the length, in bytes, of the buffer. For a Winsock application, once the WSASend function is called, the system owns these buffers and the application may not access them. This array must remain valid for the duration of the send operation. Ok, can you see the bold text? That's the unclear spot! I can think of two translations for this line (might be something else, you name it): Translation 1 - "buffers" refers to the OVERLAPPED structure that I pass this function when calling it. I may reuse the object again only when getting a completion notification about it. Translation 2 - "buffers" refer to the actual buffers, those with the data I'm sending. If the WSABUF object points to one buffer, then I cannot touch this buffer until the operation is complete. Can anyone tell what's the right interpretation to that line? And..... If the answer is the second one - how would you resolve it? Because to me it implies that for each and every data/buffer I'm sending I must retain a copy of it at the sender side - thus having MANY "pending" buffers (in different sizes) on an high traffic application, which really going to hurt "scalability". Statement 1: In addition to the above paragraph (the "And...."), I thought that IOCP copies the data to-be-sent to it's own buffer and sends from there, unless you set SO_SNDBUF to zero. Statement 2: I use stack-allocated buffers (you know, something like char cBuff[1024]; at the function body - if the translation to the main question is the second option (i.e buffers must stay as they are until the send is complete), then... that really screws things up big-time! Can you think of a way to resolve it? (I know, I asked it in other words above).

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  • combobox dataprovider

    - by FALCONSEYE
    I have the following: <mx:RemoteObject id="myCFC" destination="ColdFusion" source="components.myCFC" showBusyCursor="true"> <mx:method name="getStuff" result="UserHandler(event);"/> </mx:RemoteObject> ... <mx:ComboBox id="propertyCode" dataProvider="{qry_stuff}" labelField="name" /> Index.as has: [Bindable] public var qry_stuff:ArrayCollection = new ArrayCollection; private function UserHandler(event:ResultEvent):void { qry_stuff= event.result as ArrayCollection; } public function init():void { /* call my remote Object to get my data */ myCFC.getStuff(); } my problem is the combobox displays [object Object] I know there is nothing wrong with the cfc and there is a field called "name" in getStuff. Why does it not display the value of the object? thanks in advance.

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  • jQuery Validation Engine with Mime

    - by Diego Pucci
    I have this custom rule with tje jQuery validation Engine: "validateMIME": { "func": function(field, rules, i, options){ var fileInput = field[0].files[0]; var MimeFilter = new RegExp(rules[3],'i'); if (fileInput) { return MimeFilter.test(fileInput.type); } else { return true;} }, "alertText": "* Estensione non supportata" }, The problem is that this is working ONLY if the field is required. But in my case the field is not required, but if filled then the Mime type needs to be checked. How do I edit this function to work with non required fields? what's wrong with it? Thanks

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  • simple jquery callback works on .net3.5 but nothing fires on .net 2.0?

    - by CliffC
    hi i have the following jquery postback method on the client <%@ Page Language="C#" AutoEventWireup="true" CodeFile="CallServerWithParameters.aspx.cs" Inherits="CallServerWithParameters" %> <!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 runat="server"> <title></title> <script src="jquery-1.2.6.js" type="text/javascript"></script> <script language="javascript"> $(document).ready(function() { $("#txtNoOfMales").change(function() { var ticketRequired = this.value; var options = { type: "POST", url: "CallServerWithParameters.aspx/GetAvailableTicketsForMales", data: "{no:'" + ticketRequired + "'}", contentType: "application/json; charset=utf-8", dataType: "json", success: function(response) { if (response.d != "") { alert(response.d); $("#txtNoOfMales").focus(); } } }; //Call the PageMethods $.ajax(options); }); }); </script> </head> <body> <form id="form1" runat="server"> <div> No of Male Tickets:<asp:TextBox ID="txtNoOfMales" runat="server"></asp:TextBox> </div> </form> </body> </html> and the following web method on the server side using System; using System.Collections.Generic; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.Services; public partial class CallServerWithParameters : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } [WebMethod] public static string GetAvailableTicketsForMales(int no) { string result = ""; int NoOfTicketsAvailable = 5; if (no > NoOfTicketsAvailable) { result = "Only " + NoOfTicketsAvailable.ToString() + " Male ticket(s) avaialable. Please eneter a lower number!"; } return result; } } problem is everything works fine on .net 3.5 but if i use the same code on .net 2.0 the webmethod event does not get call at all, anybody have any idea what i did wrong? thanks updated with full source code

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  • perl split on empty file

    - by Casey
    I have basically the following perl I'm working with: open I,$coupon_file or die "Error: File $coupon_file will not Open: $! \n"; while (<I>) { $lctr++; chomp; my @line = split/,/; if (!@line) { print E "Error: $coupon_file is empty!\n\n"; $processFile = 0; last; } } I'm having trouble determining what the split/,/ function is returning if an empty file is given to it. The code block if (!@line) is never being executed. If I change that to be if (@line) than the code block is executed. I've read information on the perl split function over at http://perldoc.perl.org/functions/split.html and the discussion here about testing for an empty array but not sure what is going on here. I am new to Perl so am probably missing something straightforward here. Thanks.

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  • Error on change form action

    - by Thomas
    Hi, I'm changing the form action with: window.onload = function() { document.getElementById('pdf').onclick = addExportEvent; document.getElementById('xls').onclick = addExportEvent; document.getElementById('xml').onclick = addExportEvent; document.getElementById('csv').onclick = addExportEvent; } function addExportEvent() { data = grid.getAllGridData(); document.getElementById('dados').setAttribute('value', encodeURIComponent(JSON.stringify(data))); formulario = document.getElementById('formulario'); // Line 55! formulario.action = 'php/' + this.id + '.php'; formulario.submit(); return false; } But it doesn't work with Internet Explorer. It returns the following error: Message: The object doesn't support the property or method. Line: 55 Character: 2 Code: 0 URI: http://www.site.com/javascript/scripts.js

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  • Need a jQuery Lightbox plugin that supports $.live() and grouping

    - by Throlkim
    I'm bringing in all of my images via Ajax, and I'm looking for a quick fix for the front-end of this project. I've tried a couple of jQuery lightbox plugins, but I can't seem to get them to perform in a live function (correct me if I'm wrong in thinking I need to do this). Currently attempting to use Balupton's Lightbox Plugin (can't link because of my being a new user), and after trying all of the examples to no avail, I've attempted it with this (also not working): $('a.lightbox-gallery').live('click', function(){ $(this).lightbox(); }); Any help is much appreciated!

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  • Flash: Adjust this code to keep the duplicated movie clip

    - by Luke Evans
    OK, so here is my code ham_mc.onPress=function(){ startDrag(this); } ham_mc.onRelease=ham_mc.onReleaseOutside=function(){ stopDrag(); _root.ham_mc.duplicateMovieClip("ham_mc" + "x",2); x++; } The user can at first drag the movie clip. When released, the duplicateMovieClip command runs, leaving a new ham movie clip in the position the first is dragged to. PROBLEM: When I click and drag the first ham movie click again, the duplicateMovieClip runs again but REPLACES the previous generated movie clip. I added x and x++ in an attempt to give the movie clip duplication a different name every time, but this doesn't solve it. How do I change this code so that a NEW ham_mc is created every time, rather than overwriting the old one. I'm tired, sorry for the poor explaination!

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  • How do I check if a user is a fan of my facebook page on my website?

    - by Tony
    I want to check if my users are fans of my facebook page. I think something like this should do it: <script type="text/javascript" src="http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php/en_US"></script> <script type="text/javascript">FB.init("my api key","xd_receiver.htm");</script> <script type="text/javascript"> //<![CDATA[ FB_RequireFeatures(["Api"], function(){ var api = FB.Facebook.apiClient; api.pages_isFan(PAGE_ID,gigyaUser.FACEBOOK_USER_ID,function(response){ alert(response); }); }); //]]> </script> However, for some reason I keep getting null even though the user is in fact a fan of the page. Am I missing something?

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  • How to expose a Delphi set type via Soap

    - by Wouter van Nifterick
    I'm currently creating soap wrappers for some Delphi functions so that we can easily use them from PHP, C# and Delphi. I wonder what's the best way to expose sets. type TCountry = (countryUnknown,countryNL,countryD,countryB,countryS,countryFIN,countryF,countryE,countryP,countryPl,countryL); TCountrySet = set of TCountry; function GetValidCountrySet(const LicensePlate:string; const PossibleCountriesSet:TCountrySet):TCountrySet; I'm currently wrapping it like this for the soap server: type TCountryArray = array of TCountry; function TVehicleInfo.GetValidCountrySet(const LicensePlate:string; const PossibleCountriesSet:TCountryArray):TCountryArray; It works, but I need to write a lot of useless and ugly code to convert sets--arrays and arrays--sets. Is there an easier, more elegant, or more generic way to do this?

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  • Using boost.python to import a method with opencv calls but failing due to symbols not being found a

    - by nmz787
    So I don't have the code right now, as I am not home... but i used the boost library for python in C++ to allow python to access a function called something like loadImageIntoMainWindow(string filepath) in the C++ source code the method calls opencv methods that are imported at the top of the file, I included opencv in my Jamroot file, and also found a way to compile and link manually on the command line... in either case when I run my python file it complains that the symbols aren't found for the first function call to an opencv method... I will update as soon as I get home with the C++, the command line compilation lines, the Jamroot, and the python files

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  • calling facebox in a google maps balloon

    - by XGreen
    Hi Guys, I have a gmap balloon. var marker = createMarker(point, '<div style="width:240px" id="mapsball"><h2>Splash of London</h2><img src="_assets/images/themes/shop.jpg" id="mapThumb" width="100" align="right" /><p>110-112 Hoxton Street</p><p>London</p><p>N1 6SH</p><\/div>'); map.addOverlay(marker, icon); and a facebox attached to the click event of the image ('#mapsball') which opens it in a facebox $(function() { $("body").delegate("#mapThumb", "click", function(){ jQuery.facebox('<img src="_assets/images/themes/shop.jpg" align="right"/>'); }); }); this works fine in ff and safari and chrome. but doesn't fire in ie. I don't get a js error in ie so I am assuming it just doesn't get binded. any help would be greatly appreciated.

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  • Python lambda returning None instead of empty string

    - by yoshi
    I have the following lambda function: f = lambda x: x == None and '' or x It should return an empty string if it receives None as the argument, or the argument if it's not None. For example: >>> f(4) 4 >>> f(None) >>> If I call f(None) instead of getting an empty string I get None. I printed the type of what the function returned and I got NoneType. I was expecting string. type('') returns string, so I'd like to know why the lambda doesn't return an empty string when I pass None as an argument. I'm fairly new to lambdas so I might have misunderstood some things about how they work.

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  • JSF & jqPlot Uncaught TypeError

    - by sdg
    I have a problem using jqPlot with JSF I added this code to my JSF page: $(document).ready(function () { var s1 = [200, 600, 700, 1000]; var s2 = [460, - 210, 690, 820]; var s3 = [-260, - 440, 320, 200]; var ticks = ['May', 'June', 'July', 'August']; var plot1 = $.jqplot('chart1', [s1, s2, s3], { // The "seriesDefaults" option is an options object that will // be applied to all series in the chart. seriesDefaults: { renderer: $.jqplot.BarRenderer, rendererOptions: { fillToZero: true } }, series: [{ label: 'Hotel' }, { label: 'Event Regristration' }, { label: 'Airfare' }], legend: { show: true, placement: 'outsideGrid' }, axes: { xaxis: { renderer: $.jqplot.CategoryAxisRenderer, ticks: ticks }, yaxis: { pad: 1.05, tickOptions: { formatString: '$%d' } } } }); }); but when I try to load the page I got this error : Uncaught TypeError: Cannot read property 'BarRenderer' of undefined (anonymous function)portfolioModeling.xhtml:184 f.extend._Deferred.e.resolveWithjquery.min.js:2 e.extend.readyjquery.min.js:2 c.addEventListener.C I added the whole required js files and also the css file but I am lost and don't know where is the problem Thanks in advance

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  • referencing a WCF web service

    - by ErnieStings
    Our current project uses an asmx service. We want to keep this service for now, but would like to add an additional wcf service for ajax calls. I followed a procedure i found online to set up the service and it works fine with javascript in aspx files within that particular project but i'm unsure how to reference it in javascript files in a different project (in the same solution). If someone could point me in the right direction it would be much appreciated. Thanks, Shawn EDIT: i wish to make calls in javascript similar to the following: function Button1_onclick() { var service = new AjaxServices.TestService(); service.wcfTest(4, onSuccess, null, null); } function onSuccess(result){ document.getElementById("ajaxPlaceHolder").innerHTML = "<p>" + result + "</p>"; } // ]]> but i'm willing to explore the jQuery option as well.

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  • Jaxer and HTTP proxy requests...

    - by rakhavan
    Thanks to everyone in advance. I'm using Jaxer.sandbox and making requests just fine. I'd like these requests to go through my http proxy (like squid for example). Here is the code I that is currently working for me. window.onload = function() { //the url to scrape var url = "http://www.cnn.com/"; //our sandboxed browser var sandbox = new Jaxer.Sandbox(); //open optons var openOptions = new Jaxer.Sandbox.OpenOptions(); openOptions.allowJavaScript = false; openOptions.allowMetaRedirects = false; openOptions.allowSubFrames = false; openOptions.allowSubFrames = false; openOptions.onload = function() { //do something onload }; //make the call sandbox.open(url, null, openOptions); //write the response Jaxer.response.setContents(sandbox.toHTML()); }; How can I send this request through a proxy server? Thanks, Reza.

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  • Safari Jquery Dialog and Ckeditor

    - by Mark Milford
    Hi I am using a CKEditor in a Jquery Dialog... and in Safari the first time it loads it works but each subsequent time it is blank and no buttons or anything else works in the ckeditor... I have looked at http://stackoverflow.com/questions/2539855/ckeditor-instance-in-a-jquery-dialog and added the suggested dialog-patch.js but it doesn't help $("#TextDialog").dialog({height:400,width:650, modal:true,closeOnEscape:true, autoOpen:false, open: function(event, ui) { $("#Text").ckeditor(); }, close: function(event, ui) { CKEDITOR.remove($("#Text").ckeditorGet()); }}); That is my code, and it works it all browsers (well Chrome, IE and FF) but not in Safari!

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  • implement code folding with html and java script

    - by Vignesh
    I'm trying to collapse or expand table rows with + and - sign displayed on the first column, using jquery. <script type="text/javascript"> $(document).ready(function() { $("tr.header").click(function () { $("tr.child", $(this).parent()).slideToggle("fast"); }); }); I'm trying to use this code. But I want the child of the parent I'm clicking on alone to be toggled. Any ideas on how to do it?

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  • How to set Source of s:BitmapFill dinamicaly? (FLASH BUILDER, CODE INSIDE)

    - by Ole Jak
    In Flash Builder (flex 4) I try to use next code to set selected by user (from file system) Image as a repeated background. It worked with mx:Image but I want to use cool repited capabiletis of s:BitmapFill. BTW: Technic I use also does not work with S:BitmapImage. Also FP does not return any errors. What Shall I do with my code to make it work? <?xml version="1.0" encoding="utf-8"?> <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:net="flash.net.*" minWidth="955" minHeight="600" > <fx:Script> <![CDATA[ import mx.controls.Alert; import mx.utils.ObjectUtil; private function btn_click(evt:MouseEvent):void { var arr:Array = []; arr.push(new FileFilter("Images", ".gif;*.jpeg;*.jpg;*.png")); fileReference.browse(arr); } private function fileReference_select(evt:Event):void { fileReference.load(); } private function fileReference_complete(evt:Event):void { img.source = fileReference.data; Alert.show(ObjectUtil.toString(fileReference)); } ]]> </fx:Script> <fx:Declarations> <net:FileReference id="fileReference" select="fileReference_select(event);" complete="fileReference_complete(event);" /> </fx:Declarations> <s:Rect id="backgroundRect" left="0" right="0" top="0" bottom="0"> <s:fill> <s:BitmapFill id="img" source="@Embed('1.jpg')" fillMode="repeat" /> </s:fill> </s:Rect> <mx:Button id="btn" label="Browse and preview..." click="btn_click(event);" /> </s:Application> Any ideas?

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  • CakePHP Accessing Dynamically Created Tables?

    - by Dave
    As part of a web application users can upload files of data, which generates a new table in a dedicated MySQL database to store the data in. They can then manipulate this data in various ways. The next version of this app is being written in CakePHP, and at the moment I can't figure out how to dynamically assign these tables at runtime. I have the different database config's set up and can create the tables on data upload just fine, but once this is completed I cannot access the new table from the controller as part of the record CRUD actions for the data manipulate. I hoped that it would be along the lines of function controllerAction(){ $this->uses[] = 'newTable'; $data = $this->newTable->find('all'); //use data } But it returns the error Undefined property: ReportsController::$newTable Fatal error: Call to a member function find() on a non-object in /app/controllers/reports_controller.php on line 60 Can anyone help.

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  • Source code comparison app that doesn't require files?

    - by ZenBlender
    I'm looking for an easy-to-use, free source code comparison app for Windows, which will highlight differences side-by-side between two pieces of source code. Some apps get close to what I want, but are too restrictive by requiring you load in entire files and compare them in their entirety. Sometimes I just want to compare a section of my file, such as a single function, which may be in totally different locations in the two versions I'd be comparing, making it hard to find in both panes in large files. Basically, I'd like to be able to simply edit/copy/paste the content in both panes rather than have the restriction of using files. That way I can copy and paste one function into one pane and another into the other, editing/re-ordering as necessary. (Note that I realize there are other comparison app recommendation threads out there, but I'm having a hard time finding a free app that isn't a strict file-to-file comparison app) Thanks for any pointers or links, thanks!

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