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• Replacing text with image invokes "IE has restricted this page from running scripts or ActiveX"

  - by Johan

  I'm making a snippet that people can add to their web sites. My problem is that it invokes the yellow "ActiveX" bar at the top in Internet explorer. I'm not sure what invokes it. This is my code: <a id="nhl1" href="http://www.theaddress.com/">link</a> <script type="text/javascript"> (function () { document.getElementById('nhl1').innerHTML = '<img src="http://www.theaddress.com/banner1.jpg" alt="image 1" style="border: none;" />'; })(); </script>

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• In PHP, is it possible to create an instance of an class without calling class's constructor ?

  - by Rachel

  By any means, is it possible to create an instance of an php class without calling its constructor ? I have Class A and while creating an instance of it am passing file and in constructor of Class A am opening the file. Now in Class A, there is function which I need to call but am not required to pass file and so there is not need to use constructor functionality of opening file as am not passing file. So my question is, Is it possible by any means to create an instance of an PHP class without calling its constructor ?

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• How to ask database server for current datetime using entity framework?

  - by Levelbit

  I don't want for my current ModifeidDateTime to be machine time already server time. Every time I want to update or add a person to my datebase on SQL Server 2008 I want to fill ModifiedDateTime filed. It's not like I can change update query as with data adapter command when I work with dataset and to define for my ModifiedDateTime filed to be =GetDate(). I created stored function to retutn me a value of GetDate() method, but I have a problem to import procedure which returns values as int, string ... or no value at all, already just entity values as Person for example in my case. Why is that? Anyway, It would be of great help if you can provide me any solution that works to retrieve DateTime value from server.

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• MooTools - Programmatically fired events not working with event delegation

  - by Anurag

  Would really appreciate if anyone can help me figure out why I am unable to fire events programmatically when using event delegation in MooTools (from the Element.Delegation class). There is a parent <div> that has a change listener on some child <input> elements. When the change event is triggered by user actions, the handler on the parent div gets triggered, but when I fire it programmatically with fireEvent on any child input, nothing happens. The basic setup is: html <div id="listener"> <input type="text" id="color" class="color" /> ????????????????????????????????????????????????????????????????</div>??????????? js $("listener").addEvent("change:relay(.color)", function() { alert("changed!!"); }); $("color").fireEvent("change"); // nothing happens The event handler on the parent div does not get called. Any help is appreciated. Cheers!

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• Implode error for PHP

  - by Pete Herbert Penito

  Hi Everyone! I have a form where I've got three checkboxes like this: <td>Wireless <input type="checkbox" name="services[]" value="wireless" /></td> </tr> <tr> <td>Cellular <input type="checkbox" name="services[]" value="cellular" /></td> </tr> <tr> <td>Security <input type="checkbox" name="services[]" value="Security" /></td> <input type="submit" name="submit"> and then I extract($_POST), and have this code $comServices = implode(",", $services); but I get an error: Warning: implode() [function.implode]: Invalid arguments passed in .. does anyone know why Im getting this error?

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• How Do I See The Final Text Of A Query Resulting From A Call To mysqli->prepare?

  - by Joshua

  After code like this: $stmt = $mysqli->prepare("SELECT District FROM City WHERE Name=?")) { $stmt->bind_param("s", $city); $stmt->execute(); $stmt->bind_result($district); $stmt->fetch(); printf("%s is in district %s\n", $city, $district); How Do I See The Actual SQL Statement That Was Executed? (It Should Look Something Like "SELECT District FROM City WHERE Name='Simi Valley';") I already realize that in this simplistic case it would be very easy to simply reconstruct the query... but how can I access it in a general way that will work for very complicated prepared statements, and cases where I don't necessarily already understand the intended structure of the query, etc. Isn't there some function or method that can be called on the statement object that will return the actual text of the SQL query, after binding?

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• Shimmed Automation addin

  - by Sandy

  I am developing an Excel addin that has an udf and calls it as a worksheet function. It is a com addin where I am using the IDTExtensibility2 interface and set the class interface type as autodual and then shim it as in the link http://blogs.msdn.com/andreww/archive/2006/07/23/excel-interop-types-in-shimmed-automation-add-ins.aspx Things work fine in my development machine but I am having a tough time packaging the assembly. The addin registers but the formula does not appear in the formula bar of Excel after the installation. Can someone help me with the right way to get it done ? I use VS 2008 and Office 2007 for my testing. Thanks in advance.

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• Redundant code in exception handling

  - by Nicola Leoni

  Hi, I've a recurrent problem, I don't find an elegant solution to avoid the resource cleaning code duplication: resource allocation: try { f() } catch (...) { resource cleaning code; throw; } resource cleaning code; return rc; So, I know I can do a temporary class with cleaning up destructor, but I don't really like it because it breaks the code flow and I need to give the class the reference to the all stack vars to cleanup, the same problem with a function, and I don't figure out how does not exists an elegant solution to this recurring problem.

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• Find all paths from root to leaves of tree in Scheme

  - by grifaton

  Given a tree, I want to find the paths from the root to each leaf. So, for this tree: D / B / \ A E \ C-F-G has the following paths from root (A) to leaves (D, E, G): (A B D), (A B E), (A C F G) If I represent the tree above as (A (B D E) (C (F G))) then the function g does the trick: (define (g tree) (cond ((empty? tree) '()) ((pair? tree) (map (lambda (path) (if (pair? path) (cons (car tree) path) (cons (car tree) (list path)))) (map2 g (cdr tree)))) (else (list tree)))) (define (map2 fn lst) (if (empty? lst) '() (append (fn (car lst)) (map2 fn (cdr lst))))) But this looks all wrong. I've not had to do this kind of thinking for a while, but I feel there should be a neater way of doing it. Any ideas for a better solution (in any language) would be appreciated.

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• Local sites not displaying in VirtualBox when using Django's local development server?

  - by littlejim84

  Hello. I develop web applications using Django on Mac OSX 10.6. I use Django's built in local development server which I run on my computer's IP (such as: http://192.168.0.11:8001/). I test my applications in Firefox, Safari and Chrome and all display fine. I use Sun's VirtualBox with 3 different instances of Windows XP that have IE6, IE7 and IE8 on them. For whatever reason, these sometimes just don't display the Django sites. They come up with 'The page cannot be displayed'. Eight times out of ten, they display fine and function normally but for no reason at all they won't display. Sometimes restarting Django's local development server from the Terminal will fix the problem, sometimes it won't. Is there some sort of VirtualBox settings or Django settings that I need to set to ensure smooth operation of this? Am I overlooking something? Has anyone else had these problems?

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• Regardign implementing Custom ExpressionBuilder.

  - by Puneet Dudeja

  I want to pass the "DisplayName" column value returned from SqlDataSource's Select command to a custom function and then the return value to be assigned to "DataTextField" property of DropDownList. I know, I can do this using "CustomExpressionBuilder", I have tried but if I use following: DataTextField="<%$ MyCustomExpressionBuilder:DisplayName %>" I do not receive the value of the DisplayName field in the overriden "GetCodeExpression" method, but the literal value "DisplayName". How can I do this? Please help me. <asp:DropDownList ID="drpCourseType" runat="server" DataSourceID="sqldsCourses" DataTextField="DisplayName" DataValueField="Type" CssClass="FilterDropdown"> </asp:DropDownList> <asp:SqlDataSource runat="server" ID="sqldsCourses" SelectCommand="SELECT Type,DisplayName FROM CourseTypes ORDER BY OrderID" ConnectionString="<%$ ConnectionStrings:connectionString %>"></asp:SqlDataSource>

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• In ActionScript, Is there a way to check if an input argument is a valid Vector of any type?

  - by ty

  In the following code: var a:Vector.<int> ... var b:Vector.<String> ... var c:Vector.<uint> ... var c:Vector.<MyOwnClass> ... function verifyArrayLike(arr:*):Boolean { return (arr is Array || arr is Vector) } verifyArrayLike(a); verifyArrayLike(b); ... What I'm looking for is something like _var is Vector.<*> But Vector.<*> is not a valid expression, even Vector. can not be placed at the right side of operators. Is there a way to check if an input argument is a valid Vector of any type?

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• ActionScript: Determine wether superclass implements a particular interface?

  - by David Wolever

  Is there any non-hacky way to determine wether a class' superclass implements a particular interface? For example, assume I've got: class A extends EventDispatcher implements StuffHolder { private var myStuff = someKindOfStuff; public function getStuff():Array { if (super is StuffHolder) // <<< this doesn't work return super['getStuff']().concat([myStuf]); return [myStuff]; } class B extends A { private var myStuff = anotherKindOfStuff; } How could I perform that super is StuffHolder test in a way that, well, works? In this case, it always returns true.

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• Cookie questions in Java

  - by user220201

  Hi, How do I differentiate between multiple cookies set through my site? I am setting two kinds of cookies one to see if the user has visited the site or not and an other one for authentication. How do I differentiate between these two? I get both of them when someone accesses a page after authentication. Do I add extra information to the Cookie Value or is there some other way? I understand the setName() function will change the name (from jsessionid) for every cookie from then on. Am I correct? Pav

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• const read only local copies

  - by robUK

  Hello gcc 4.4.4 c89 I am just wondering is it worth passing a const into a function. i.e. void do_something(const char *dest, const int size) The size is a read-only so I don't want to change it. However, some developers never have this as const has it is a local copy that is being used. The pointer is const as you can change the value in the calling routine. I always have a const on read-only local copies, as it confirms to anyone reading my code that it is a read-only variable. And also, when coding I don't make the mistake of changing it without realizing. Many thanks for any suggestions,

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• jQuery-Ui Ajax Tabs bug?

  - by vsync

  I have a JSON that returns from the server which tabs to build, so I init them in my JS like this: $('#tabs').tabs( 'ajaxOptions', { timeout: 20000, error: function(xhr, status, index, anchor){ console.log( status, index, anchor ); } }) .tabs('add', item.CategoryLink, item.CategoryName); Thing is, when I click a tab, and before it is done loading I click another tab, the previous request is aborted and never called again when I click that first one again! this is very bad, because it obviously didn't fetch the request, so what gives? I tried bypassing this by setting: .tabs({ cache: false }) but this is a bad thing to do, because I don't want to have a request each time again... it should be cachced if response was sent. using jquery-ui 1.8.1

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• How to Sum calulated fields

  - by Nazero Jerry

  I‘d like to ask I question that here that I think would be easy to some people. Ok I have query that return records of two related tables. (One to many) In this query I have about 3 to 4 calculated fields that are based on the fields from the 2 tables. Now I want to have a group by clause for names and sum clause to sum the calculated fields but it ends up in error message saying: “You tried to execute a query that is not part of aggregate function” So I decided to just run the query without the totals *(ie no group by , sum etc,,,) : And then I created another query that totals my previous query. ( i.e. using group by clause for names and sum for calculated fields… no calculation here) This is fine ( I use to do this) but I don’t like having two queries just to get summary total. Is their any other way of doing this in the design view and create only one query?. I would very much appreciate. Thankyou: JM

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• Hiding the console window in a system() call

  - by Justen

  Continuing from this question With each system call, the function constructs a set of parameters and sends them off to another program that is just console-based. Is there a way I can make it so that no console window pops up for each call? I've done a search but the ones that aren't a linker issue just aren't working for me. For instance, I tried the _execl call and System::Diagnostics::Process^ myProcess = gcnew System::Diagnostics::Process; but they aren't working. The _execl will bring a console window up, scroll a bunch of stuff (from the program I called I guess), then close the my app and not even do what it was supposed to do. The System::Diagnostics::Process^ myProcess = gcnew System::Diagnostics::Process; doesn't seem to execute what I want either because the output folder that should contain files, contains nothing. So I'm open for ideas.

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• How to automatically execute python script when Maya first loaded

  - by tep

  Hi, I am new to Maya and trying to figure out how to use Python in Maya. I wanted to create a shelf in Maya and when I click that shelf, it will execute a file containing python code. First thing, I figured out that we can't simply "source" python script. I followed tutorial from http://www.rtrowbridge.com/blog/2008/11/maya-python-import-scripts/, so now I have a function psource(). In my shelf, I can just call psource("myPythonScript") My problem is I have to somehow register psource() when Maya first loaded. Do you have any idea how to do this? Thanks!

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• Problem using Javascript to redirect to a URL with a query string

  - by Jordan Pagaduan

  Javascript <script type="text/javascript"> function Edit(id) { if(confirm("Are you sure to edit?")==true) { location.href='employee_set.php&edit='+id; } } </script> PHP <?php if(isset($_GET["edit"])==false) { echo "no response"; } else { echo "link success"; } ?> My problem is the Javascript is OK. The location href example. http://localhost/employee_set.php&edit=30 ... The PHP code is not working. Error is not found.

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• Do we need to differntiate anything for this in IE8?

  - by kumar

  I have this code in my application var checked = $('#fieldset input[type=checkbox]:checked'); var ids= checked.map(function() { return $(this).val(); }).get().join(','); in firefox I am getting all the checked Ids something like this.. 123,234,443.. but same code in IE8 its showing only first Id not all checked id's even its checked? Even if I uncheck the first checkbox if I check second checkbox second checkbox value showing as null? can anybody help me out? thanks

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• Call non-static method in server side(aspx.cs) from client side use javascript (aspx).....

  - by Pramulia

  how Call non-static method in server side(aspx.cs) from client side using javascript (aspx)....? As far as I know I can call static method in server side from client side... server side : [System.Web.Services.WebMethod] public static void method1() { } client side : <script language="JavaScript"> function keyUP() { PageMethods.method1(); } </script> <asp:ScriptManager ID="ScriptManager1" runat="server" EnablePageMethods="true"> </asp:ScriptManager> It works. Now how do I call non-static method from client side...?

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• PHP Sessions - Locking and Sharing questions

  - by Nuno Peralta

  Hi, I would like to know if it is possible to read $_SESSION attributes without locking it. Currently, session_start() locks SESSION, that means other PHP processes will wait until it is unlocked. But, some processes just want to get some $_SESSION variables, not to write on them. Is that possible to implement some function like session_get(string $id) which doesn't lock SESSION? Also, it is possible to share SESSIONs between browsers, once the user is logged in the same account, for example, using session_id('shared_vars_of_'.$userid). But, is that secure? Is this discouraged? Thanks, Nuno

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• Using Jquery $getJSON How do I dynamically create data for the [data] parameter after Url param?

  - by Breadtruck

  I have no problems getting the Json to work and parse the json return. I was just wondering how I could build a dynamic "whatever data is" and stick it into [data] to pass my parameters from there and not manually append them to the url. From jquery website example: $.getJSON("test.js", { name: "John", time: "2pm" }, function(json){ alert("JSON Data: " + json.users[3].name); }); I thought I could build a string ( which doesn't make sense anyway ) and drop it inside the { }, but I obviously don't understand that part. name: isn't a string and you can't put a variable in that part, so how would I dynamically put items into whatever [data] is.

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• Autocorrelation method for pitch determination: what is the input data form?

  - by harsh

  I have read a code for pitch determination using autocorrelation method. Can anybody please tell what would be the input data (passed as argument to DetectPitch()) function here: double DetectPitch(short* data) { int sampleRate = 2048; //Create sine wave double *buffer = malloc(1024*sizeof(short)); double amplitude = 0.25 * 32768; //0.25 * max length of short double frequency = 726.0; for (int n = 0; n < 1024; n++) { buffer[n] = (short)(amplitude * sin((2 * 3.14159265 * n * frequency) / sampleRate)); } doHighPassFilter(data); printf("Pitch from sine wave: %f\n",detectPitchCalculation(buffer, 50.0, 1000.0, 1, 1)); printf("Pitch from mic: %f\n",detectPitchCalculation(data, 50.0, 1000.0, 1, 1)); return 0; }

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