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• jQuery Change Html Content

  - by Mircea

  Hi, I have the following HTML5 content: <section contenteditable="true" id="editable" class="ui-selectee ui-selected"> <span>something</span> <span>something</span> <span>something</span> </selection> I have a toggle function that turns on edit mode. I want to make the contenteditable="true" or contenteditable="false" on that toggle function. I've it would be easy if I would have to change a class or ID. Ive tryed to .html the #edit or append but I was unable to. Any tips on changing contenteditable="true" to contenteditable="false" ? Thanx

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• ForceContext Queries method twice?

  - by azz0r

  Hello, I'm doing a per minute script, to output the xml that a server will read, I am used forceContext. <?php class My_Controller_Action_Helper_ForceContext extends Zend_Controller_Action_Helper_ContextSwitch { public function initContext($format = null) { $request = $this->getRequest(); $action = $request->getActionName(); $context = $this->getActionContexts($action); //check if this is the only context if(count($context) === 1) { $format = $context[0]; } return parent::initContext($format); } } class Video_PerMinuteController extends Zend_Controller_Action { function init() { $contextSwitch = $this->_helper->getHelper('ForceContext'); $contextSwitch->addActionContext('transaction', 'xml')->initContext(); In my method, it gets the current minute count, adds 1, then saves. So I can clearly see when its accessed more than once in a minute. If I comment out the second contextSwitch line, it only goes up 1, if Its not, it displays the xml page but adds 2 minutes (being called twice somehow). Any ideas?

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• SEARCHING AND REPLACING BRACKETS IN A STRING IN ORACLE 10G

  - by Tunde

  hello, Thanks as usual for your prompt and kind suggestions. i am currently developing a function that is meant to execute dynamically created SQL statements. this is done by concatenating the columns and fetching them via cursors. the problem is that when there is a function with a comma between its arguments, the concat concatenates the contents of the functions inclusive. Is it possible to skip contents of every bracket found in a string using REGEXP_SUBTR or REGEXP_REPLACE? Many thanks for the anticipated response.

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• Mapped Stored Procedures in EF 1

  - by michael.lukatchik

  All, I'm using mapped Stored Procedures in EF 1. I've completed the following steps: 1) I've created my INSERT, UPDATE, and DELETE queries in SQL Server. 2) I've built the EDMX and imported the INSERT, UPDATE, and DELETE sprocs as part of my model. 3) I've set up a Stored Procedure Mapping on a table inside of my EDMX file. The INSERT, UPDATE, and DELETE sprocs were mapped accordingly. Using this approach, I would expect to rebuild the application (and mine builds successfully) and then see the Stored Procedures as available function names via my EDMX object, such as: _entities.InsertComment(..), _entities.UpdateComment(..), and _entities.DeleteComment(..) Intellisense is not picking these names up and I can't figure out why. If I perform these same steps using EF4, the function names are automatically picked up by Intellisense after adding the Stored Procedure Mappings. Is this a bug in EF1? Is there something else I should be doing? Thanks in advance, Mike

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• Equivalence Classes

  - by orcik

  I need to write a program for equivalence classes and get this outputs... (equiv '((a b) (a c) (d e) (e f) (c g) (g h))) => ((a b c g h) (d e f)) (equiv '((a b) (c d) (e f) (f g) (a e))) => ((a b e f g) (c d)) Basically, A set is a list in which the order doesn't matter, but elements don't appear more than once. The function should accept a list of pairs (elements which are related according to some equivalence relation), and return a set of equivalence classes without using iteration or assignment statements (e.g. do, set!, etc.). However, set utilities such as set-intersection, set-union and a function which eliminates duplicates in a list and built-in functions union, intersection, and remove-duplicates are allowed. Thanks a lot! By the way, It's not a homework question. A friend of mine need this piece of code to solve smilar questions.

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• Opinion on "loop invariants", and are these frequently used in the industry?

  - by Michael Aaron Safyan

  I was thinking back to my freshman year at college (five years ago) when I took an exam to place-out of intro-level computer science. There was a question about loop invariants, and I was wondering if loop invariants are really necessary in this case or if the question was simply a bad example... the question was to write an iterative definition for a factorial function, and then to prove that the function was correct. The code that I provided for the factorial function was as follows: public static int factorial(int x) { if ( x < 0 ){ throw new IllegalArgumentException("Parameter must be = 0"); }else if ( x == 0 ){ return 1; }else{ int result = 1; for ( int i = 1; i <= x; i++ ){ result*=i; } return result; } } My own proof of correctness was a proof by cases, and in each I asserted that it was correct by definition (x! is undefined for negative values, 0! is 1, and x! is 1*2*3...*x for a positive value of x). The professor wanted me to prove the loop using a loop invariant; however, my argument was that it was correct "by definition", because the definition of "x!" for a positive integer x is "the product of the integers from 1... x", and the for-loop in the else clause is simply a literal translation of this definition. Is a loop invariant really needed as a proof of correctness in this case? How complicated must a loop be before a loop invariant (and proper initialization and termination conditions) become necessary for a proof of correctness? Additionally, I was wondering... how often are such formal proofs used in the industry? I have found that about half of my courses are very theoretical and proof-heavy and about half are very implementation and coding-heavy, without any formal or theoretical material. How much do these overlap in practice? If you do use proofs in the industry, when do you apply them (always, only if it's complicated, rarely, never)?

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• Recursion with an Array; can't get the right value to return

  - by Matt

  Recursive Solution: Not working! Explanation: An integer, time, is passed into the function. It's then used to provide an end to the FOR statement (counter<time). The IF section (time == 0) provides a base case where the recursion should terminate, returning 0. The ELSE section is where the recursive call occurs: total is a private variable defined in the header file, elsewhere. It's initialized to 0 in a constructor, elsewhere. The function calls itself, recursively, adding productsAndSales[time-1][0] to total, again, and again, until the base call. Then the total is returned, and printed out later. Well, that's what I hoped for anyway. What I imagined would happen is that I would add up all the values in this one column of the array and the value would get returned, and printed out. Instead if returns 0. If I set the IF section to "return 1", I noticed that it returns powers of 2, for whatever value time is. EG: Time = 3, it returns 2*2 + 1. If time = 5, it returns 2*2*2*2 + 1. I don't understand why it's not returning the value I'm expecting. int CompanySales::calcTotals( int time ) { cout << setw( 4 ); if ( time == 0 ) { return 0; } else { return total += calcTotals( productsAndSales[ time-1 ][ 0 ]); } } Iterative Solution: Working! Explanation: An integer, time, is passed into the function. It's then used to provide an end to the FOR statement (counter<time). The FOR statement cycles through an array, adding all of the values in one column together. The value is then returned (and elsewhere in the program, printed out). Works perfectly. int CompanySales::calcTotals( int time ) { int total = 0; cout << setw( 4 ); for ( int counter = 0; counter < time; counter++ ) { total += productsAndSales[counter][0]; } return total0; }

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• XML and ServerXMLHTTP problem

  - by ZAfrican

  Error Type: msxml3.dll (0x80072F0C) A certificate is required to complete client authentication I am sending an XML file to a remote server putUrl =https://www.myweb.com/test/drhandler.php xml_put = "<?xml version=""1.0""?><subscription id=""" & "14" &"""><status>" &"das" & "</status></subscription>" Public Function SendBatch(xml_put,putUrl) Set xmlhttp = CreateObject("MSXML3.ServerXMLHTTP") xmlhttp.Open "PUT", putUrl , False xmlhttp.setRequestHeader "Content-Type", "application/x-www-form-urlencoded" xmlhttp.send(xml_put) Set xmlhttp = Nothing end function Any help out there?

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• Trying to create text boxes dynammically and remove them

  - by fari

  I am using VB.NET vb 2008 . I am trying to create text boxes dynammically and remove them here is the code i have written so far Private Sub setTextBox() Dim num As Integer Dim pos As Integer num = Len(word) temp = String.Copy(word) Dim intcount As Integer remove() GuessBox.Visible = True letters.Visible = True pos = 0 'To create the dynamic text box and add the controls For intcount = 0 To num - 1 Txtdynamic = New TextBox Txtdynamic.Width = 20 Txtdynamic.Visible = True Txtdynamic.MaxLength = 1 Txtdynamic.Location = New Point(pos + 5, 0) pos = pos + 30 'set the font size Txtdynamic.Font = New System.Drawing.Font("Verdana", 8.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte)) Txtdynamic.Name = "txtdynamic_" & intcount & "_mycntrl" Txtdynamic.Enabled = False Txtdynamic.Text = "" Panel1.Controls.Add(Txtdynamic) Next Panel1.Visible = True Controls.Add(Panel1) Controls.Add(GuessBox) Controls.Add(letters) letter = "" letters.Text = "" hang_lable.Text = "" tries = 0 End Sub`enter code here` Function remove() For Each ctrl In Panel1.Controls Panel1.Controls.Remove(ctrl) Next End Function I am able to create the textboxes but only a few of them are removed. by using For Each ctrl In Panel1.Controls it doesn't retrieve all the controls and some ae duplicated as well.

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• execute javascript method after method excution complete ?

  - by James123

  I want execute below callback()method after completion of process document.getElementById('btnDownload').click(); method. click() is the code behind method. That means, I mean after complete process of click() then excute callback() method. Because my modelpop is not hiding in code behind. So I want hide in javascript method. function LoadPopup() { // find the popup behavior this._popup = $find('mdlPopup'); // show the popup this._popup.show(); // synchronously run the server side validation ... document.getElementById('btnDownload').click(); callback(); } function callback() { this._popup = $find('mdlPopup'); // hide the popup this._popup.hide(); alert("hi"); }

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• How to detect when a tab is focused or not in Chrome with Javascript?

  - by LLer

  I need to know if the user is currently viewing the current tab or not in Google Chrome. I tried to use the events blur and focus binded to the window, but only the blur seems to be working. window.addEventListener('focus', function() { document.title = 'focused'; }); window.addEventListener('blur', function() { document.title = 'not focused'; }); The focus event works weird, only sometimes. If I switch to another tab and back, focus event won't activate. But if I click on the address bar and then back on the page, it will. Or if I switch to another program and then back to Chrome it will activate if the tab is currently focused.

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• How to implement dynamic queries for MNesia?

  - by Kerem

  I'm trying to implement a function that generates dynamic queries for MNesia. For example, when function is called with these arguments; dyn_query(list, person, [name, age], ["jack", 21]) I want to query MNesia to list items whose name is "jack" and age is 21 in person table. I've tried to implement this by using qlc:q(ListComprehension) and qlc:string_to_handle("ListComprehension"). First failed because of compile errors, compiler didn't let me to use functions instead of ListComprehentions and variables instead of record names like "Item#Table.Member". Second failed, because erl_eval couldn't handle records and throwed exceptions like {undefined_record, person}. Which method should I use? How could i solve these problems? Or should I use a different method? Thanks.

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• How do I get a linq to sql group by query into the asp.net mvc view?

  - by Brad Wetli

  Sorry for the newbie question, but I have the following query that groups parking spaces by their garage, but I can't figure out how to iterate the data in the view. I guess I should strongly type the view but am a newbie and having lots of problems figuring this out. Any help would be appreciated. Public Function FindAllSpaces() Implements ISpaceRepository.FindAllSpaces Dim query = _ From s In db.spaces _ Order By s.name Ascending _ Group By s.garageid Into spaces = Group _ Order By garageid Ascending Return query End Function The controller is taking the query object as is and putting it into the viewdata.model and as stated the view is not currently strongly typed as I haven't been able to figure out how to do this. I have run the query successfully in linqpad.

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• HD video editing system with Truecrypt

  - by Rob

  I'm looking to do hi-def video editing and transcoding on an unencrypted standard partition, with Truecrypt on the system partition for sensitive data. I'm aiming to keep certain data private but still have performance where needed. Goals: Maximum, unimpacted, performance possible for hi-def video editing, encryption of video not required Encrypt system partition, using Truecrypt, for web/email privacy, etc. in the event of loss In other words I want to selectively encrypt the hard drive - i.e. make the system partition encrypted but not impact the original maximum performance that would be available to me for hi-def/HD video editing. The thinking is to use an unencrypted partition for the video and set up video applications to point at that. Assuming that they would use that partition only for their workspace and not the encrypted system partition, then I should expect to not get any performance hit. Would I be correct? I guess it might depend on the application, if that app is hard-wired to use the system partition always for temporary storage during editing and transcoding, or if it has to be installed on the C: system partition always. So some real data on how various apps behave in the respect would be useful, e.g. Adobe, Cyberlink, Nero etc. etc. I have a Intel i7 Quad-core (8 threads) 1.6Ghz (up to 2.8Ghz turbo-boost) 4Gb, 7200rpm SATA, nvidia HP laptop. I've read the excellent posting about the general performance impact of truecrypt but the benchmarks weren't specific enough for my needs where I'm dealing with HD-video and using a non-encrypted partition to maintain max performance.

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• Undefined Variable in Matlab

  - by OrangeRind

  The Following is the basic skeleton for my MATLAB program. Each box is a class definition. Scroll down for the error. Note: Each Class has a custom constructor which does not require an external parameter The Error Undefined function or variable 'Troom'. Error in == wallwall.wall at 31 function o = wall(Tr) Error in == mainfile at 5 w1 = wall(); This comes when I create an object of Class wall from another file "mainfile" Question Why is this happening? Am I getting wrong in the concepts of OOP for Matlab specific? How do I resolve this? Thanks in Advance!

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• jQuery Ajax works in Firefox, fails in IE when calling Controller action

  - by myaesubi

  Hello there, I'm making the following jQuery ajax call to an action in ASP.NET MVC. In Firefox the async request is sent to the action in the controller and everything works fine, but in IE no request is sent to the controller. Here is the ajax call and action controller signature: $.ajax({ cache: false, type: "GET", dataType: "json", contentType: "application/json; charset=utf-8", url: "/Fmz/AssignFmzToRegion", data: { fmzId: 403, regionId: 409 }, success: function(message) { if (message != 'Success') alert(message); }, failure: function(message) { alert(message); } }); [HttpGet] public JsonResult AssignFmzToRegion(long fmzId, long regionId) { try { FacilityManagementZoneService.AssignFmzToRegion(fmzId, regionId); } catch (Exception e) { return this.Json(e.Message, JsonRequestBehavior.AllowGet); } return this.Json("Success", JsonRequestBehavior.AllowGet); } Thanks.

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• Counting viable sublist lengths from an array.

  - by Ben B.

  This is for a genetic algorithm fitness function, so it is important I can do this as efficiently as possible, as it will be repeated over and over. Lets say there is a function foo(int[] array) that returns true if the array is a "good" array and false if the array is a "bad" array. What makes it good or bad does not matter here. Given the full array [1,6,8,9,5,11,45,16,9], lets say that subarray [1,6,8] is a "good" array and [9,5,11,45] is a "good" array. Furthermore [5,11,45,16,9] is a "good" array, and also the longest "good" subarray. Notice that while [9,5,11,45] is a "good" array, and [5,11,45,16,9] is a "good" array, [9,5,11,45,16,9] is a "bad" array. We wants the length counts of all "good" arrays, but not subarrays of "good" arrays. Furthermore, as described above, a "good" array might begin in the middle of another "good" array, but the combination of the two might be a "bad" array.

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• What is dot and hash symbols mean in JQuery

  - by kwokwai

  Hi all, I feel confused of the dot and hash symbols in the following example: <DIV ID="row"> <DIV ID="c1"> <Input type="radio" name="testing" id="testing" VALUE="1">testing1 </DIV> </DIV> Code 1: $('#row DIV').mouseover(function(){ $('#row DIV).addClass('testing'); }); Code 2 $('.row div').mouseover(function(){ $(this).addClass('testing'); });? Codes 1 and 2 look very similar, and so it makes me so confused that when I should use ".row div" to refer to a specific DIV instead of using "#row div" ?

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• matlab fit exp2

  - by HelloWorld

  I'm unsuccessfully looking for documentation of fit function using exp2 (sum of 2 exponents). How to operate the function is clear: [curve, gof] = fit(x, y,'exp2'); But since there are multiple ways to fit a sum of exponents I'm trying to find out what algorithm is used. Particularly what happens when I'm fitting one exponent (the raw data) with a bit of noise, how the exponents are spread. I've simulated several cases, and it seems that it "drops" all the weight on the second set of coefficients, but row data analysis often shows different behavior. Does anyone have suggestions of documentation?

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• Using Delphi's ShellExecute() with the process inheriting the original console?

  - by Phil

  In C I've used the system() function before in a console application and if I start another process using system() it inherits the console window of the process that called it. In Delphi system() doesn't exist so I'm using ShellExecute() to create a new process, but the new process comes up in a new console window. Is there some way that I can make it inherit the handle of the window that's calling it? I've used function GetConsoleWindow(): HWND; stdcall; external 'kernel32.dll'; to get the console window and passed it in the HWND part of ShellExecute(), but that didn't work.

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• Why IList<> has less feature than List<>?

  - by Benny

  To use such great function as ConvertAll(), I have to convert IList to List, it's painful.

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• Flex: Result event given multiple times

  - by Tom

  Hello everybody!! I am trying to learn Flex and now i have the next code: http://pastebin.com/rZwxF7w1 This code is for my login component. I want to get a special string for encrypting my password. This string is given by my authservice. But when i login i get a multiple times a alert with Done(line 69 in the pastebin code or line 4 in the code on the bottom of this question). But i want that it shows one single time. Does someone know what is wrong with this code? Tom protected function tryLogin():void { encryptStringResult.addEventListener('result', function(event:ResultEvent):void { var encryptString:String = event.result.toString(); Alert.show('Done'); }); encryptStringResult.token = auth.getEncryptString(); }

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• Spring 3 - Custom Security

  - by Eqbal

  I am in the process of converting a legacy application from proprietary technology to a Spring based web app, leaving the backend system as is. The login service is provided by the backend system through a function call that takes in some parameter (username, password plus some others) and provides an output that includes the authroizations for the user and other properties like firstname, lastname etc. What do I need to do to weave this into Spring 3.0 security module. Looks like I need to provide a custom AuthenticationProvider implementation (is this where I call the backend function?). Do I also need a custom User and UserDetailsService implementation which needs loadUserByName(String userName)? Any pointers on good documentation for this? The reference that came with the download is okay, but doesn't help too much in terms of implementing custom security.

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• missing : after property id javascript error in geolocation

  - by Ade

  Can anyone see a problem with the following i hope its a simple snag but its driving me mad.. firebug brings up the 'missing : after property id' - I have looked online but cant suss it any thoughts..? navigator.geolocation.getCurrentPosition(function(position){ var lat = position.coords.latitude; var lon = position.coords.longitude; var request = { request.origin = position.coords.latitude + ',' + position.coords.longitude;, travelMode: google.maps.DirectionsTravelMode.DRIVING }; }); },function(error){ //use error.code to determine what went wrong });

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• Update count every second causing massive memory problems

  - by Josh

  Just on my local machine, trying the run the following script causes my computer to crash... What am I doing wrong? (function($) { var count = '6824756980'; while (count > 0) { setInterval(function() { $('#showcount').html(Math.floor(count-1)); count--; }, 1000 ); } })(jQuery); All I need to do is subtract one from the var "count" and update/display it's value every second.

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