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  • CComPtr pass by reference

    - by Mahesh
    I have a situation where I need to pass a CComPtr<IXmlReader> to a function by reference. Does the called parameter takes the ownership from the callee parameter (or) the reference count is increased? void foo( CComPtr<IXmlReader> & pReader ) { // There is no reassignment of the CComPtr. // Just call the IXmlReader methods. } CComPtr<IXmlReader> pReader; foo( pReader ); // Is pReader still valid after the function return ? Thanks.

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  • Prevent onbeforeunload from being called when clicking on mailto link

    - by Amit
    Is there anyway to prevent onbeforeunload from being called when clicking on mailto link in chrome. In FF, Safari, IE it is working fine. <html> <head> <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"> google.load("jquery", "1.3.2"); </script> <script type="text/javascript"> $(document).ready(function(){ window.onbeforeunload = confirmExit; }); function confirmExit() { return "Are you sure?"; } </script> </head> <body> <a href="mailto:[email protected]?subject=test mail&body=Hello%20World">Mail Link</a> </body> </html>

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  • display image and script for a set period of time

    - by Ryan Max
    This is very similar to a question I asked the other day but my page code has become significantly more complicated and I need to revisit it. I've been using the following code: $('#myLink').click(function() { $('#myImg').attr('src', 'newImg.jpg'); setTimeout(function() { $('#myImg').attr('src', 'oldImg.jpg'); }, 15000); }); To replace an image for a set period of time (15 seconds) when the link is clicked, then after 15 seconds, revert to the original image. However now, I'd like to run a snippet of javascript as well when the link is clicked (in addition to replacing the image), and only when the link is clicked (it's related to the 15 second image) and then have the js code disappear as well after the 15 seconds...however I'm not sure how to have jquery send js code into the page...Basically I just want jQuery to "echo" this code onto the page underneath the 15 second while I am there, but I don't know how jquery formats this "echo". Does this question make sense?

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  • Big 0 theta notation

    - by niggersak
    Can some pls help with the solution Use big-O notation to classify the traditional grade school algorithms for addition and multiplication. That is, if asked to add two numbers each having N digits, how many individual additions must be performed? If asked to multiply two N-digit numbers, how many individual multiplications are required? Suppose f is a function that returns the result of reversing the string of symbols given as its input, and g is a function that returns the concatenation of the two strings given as its input. If x is the string hrwa, what is returned by g(f(x),x)? Explain your answer - don't just provide the result!

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  • Scheme: Detecting duplicate elements in a list

    - by Kyle Krull
    Does R6RS or Chez Scheme v7.9.4 have a library function to check if a list contains duplicate elements? Alternatively, do either have any built in functionality for sets (which dis-allow duplicate elements)? So far, I've only been able to find an example here. The problem with that is that it doesn't appear to actually be part of the Chez Scheme library. Although I could write my own version of this, I'd much rather use a well known, tested, and maintained library function - especially given how basic an operation this is. So a simple "use these built-in functions" or a "no built-in library implements this" will suffice. Thanks!

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  • using JQuery on beforeprint event problem.

    - by Cesar Lopez
    Hi all, I have the following function. <script type="text/javascript"> window.onbeforeprint = expandAll; function expandAll(){ $(".fieldset:gt(0)").slideDown("fast"); } </script> For this html <table class="sectionHeader" ><tr ><td>Heading</td></tr></table> <div style="display:none;" class="fieldset">Content</div> I have several block of content over the page, but when I do print preview or print, I can see all divs sliding down, but on the print out they are all collapse. Anyone have any idea why is this? Thanks.

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  • Properties of bad fibonacci algorithm

    - by John Smith
    I was looking at the canonical bad fibonacci algorithm the other day: public static int fib(int n) { // Base Case if (n < 2) return 1; else return fib(n-1) + fib(n-2); } I made the interesting observation. When you call fib(n), then for k between 1 and n fib(k) is called precisely fib(n-k+1) times (or fib(n-k) depending on your definition of fib(0) ). Also, fib(0) is called fib(n-k-1) times. This then allows me to find that in fib(100) there are exactly 708449696358523830149 calls to the fib function. Are there other interesting observations on this function you know of?

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  • Javascript Noob: How to emulate slideshow on front page by automatically cycling through existing ho

    - by Zildjoms
    hey everyone. hope you could help me out am working on this website and i've finished all the hover effects i like - they're exactly how i want them to be: http://s5ent.brinkster.net/beta3.asp - try hovering over the four links and you'll see a very simple fade effect at work, which degrades into a regular css hover without javascript. what i plan to do is to make the page look like it had a fancy slideshow going on upon loading and while idle, and i wanted to achieve that by capitalizing on the existing hover styling/behavior of the main page links instead of using another script to create the effect from scratch. to do this i imagined i'll need a script that emulates a hover action on each link at regular time intervals once the page has loaded, starting from left to right (footcare, lawn & equipment, about us, contact us), looping through all 4 links indefinitely (footcare, lawn & equipment, about us, contact us, footcare, lawn& equipment, etc.) but pauses when any of them have been actually hovered over by a viewer and resumes from wherever the user left off upon mouseout. hope you get my drift... i also want to achieve this without unnecessarily disrupting the current html. so i guess everything will have to be done by scripting as much as possible.. i'm very new to javascript and jquery. as you can see at s5ent.brinkster.net/beta3.1-autohover.asp, the following script i made works wrong: it hovers-on all of them at the same time and doesn't hover-out anymore. when you try to actually hover into and out of each link the link just comes back on: <script type="text/javascript"> $(document).ready(function () { var speed = 5000; var run = setInterval('rotate()', speed); }); function rotate() { $('.lilevel1 a').each(function(i) { $(this).mouseover(); }); } </script> it's just gross. aside from the fact that this last bit of script isn't even working in ie. could you please help me make this thing happen? that'd be really sweet, guys. i know there are tonsa geniuses out there who could whip this up in no time. or if you have a better way to go about it by all means kindly lemme know. thanks guys, hope you're all havin a blast.

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  • Finding edge and corner values of an image in matlab

    - by James
    Hi, this problem links to two other questions i've asked on here. I am tracing the outline of an image and plotting this to a dxf file. I would like to use the bwboundaries function to find the coordinates of the edges of the image, find the corner coordinates using the cornermetric function and then remove any edge coordinates that are not a corner. The important thing I need to be able to do is keep the order of the corner elements obtained from bwboundaries, so that the section traces properly. The dxf function I have that draws from the coordinates draws lines between coordinates that are next to each other, so the line has to be drawn "around" the section rather than straight between the corner points. The reason I am doing this is because there are less coordinates obtained this way, so it is easier to amend the dxf file (as there are less points to manipulate). The code I have so far is: %# Shape to be traced bw = zeros(200); bw(20:40,20:180) = 1; bw(20:180,90:110) = 1; bw(140:180,20:185) = 1; %# Boundary Finding Section [Boundary] = bwboundaries(bw); %Traces the boundary of each section figure, imshow(bw); hold on; colors=['b' 'g' 'r' 'c' 'm' 'y']; for k=1:length(Boundary) perim = Boundary{k}; %Obtains perimeter coordinates (as a 2D matrix) from the cell array cidx = mod(k,length(colors))+1;% Obtains colours for the plot plot(perim(:,2), perim(:,1),... colors(cidx),'LineWidth',2); end Coordmat = cell2mat(Boundary) %Converts the traced regions to a matrix X = Coordmat(:,1) Y = Coordmat(:,2) % This gives the edge coordinates in matrix form %% Corner Finding Section (from Jonas' answer to a previous question %# get corners cornerProbability = cornermetric(bw); cornerIdx = find(cornerProbability==max(cornerProbability(:))); %# Label the image. bwlabel puts 1 for the first feature, 2 for the second, etc. %# Since concave corners are placed just outside the feature, grow the features %# a little before labeling bw2 = imdilate(bw,ones(3)); labeledImage = bwlabel(bw2); %# read the feature number associated with the corner cornerLabels = labeledImage(cornerIdx); %# find all corners that are associated with feature 1 corners_1 = cornerIdx(cornerLabels==1) [Xcorners, Ycorners] = ind2sub(200,corners_1) % Convert subscripts The code I have is, to give a matrix Xfin for the final x coordinates (which are on the edge AND at a corner. Xfin = zeros(length(X),1) for i = Xcorners XFin(i) = Xcorners if i~= Xcorners XFin(i) = [] end end However, this does not work correctly, because the values in the solution are sorted into order, and only one of each value remains. As I said, I would like the corner elements to be in the same order as obtained from bwboundaries, to allow the image to trace properly. Thanks

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  • How to calculate short & long distance via Haversine?

    - by Jeroen
    Hi, I am looking for a way to calculate the distance between 2 points on the globe. We've been told to use Haversine, which works fine to calculate the shortest distance between the 2 points. Now, I'd like to calculate the "long distance" between to points. So suppose you have 2 cities, A in the west and B in the east. I want to know the distance from B to A if I would travel eastwards around the globe and then reach A coming from the west. I've tried changing a couple of things in the haversine function, but doesn't seem to work. Anyone know how I can simply do this using small adjustments to the haversine function? This is what I'm using now: lat1, lat2, lng1, lng2 are in radians part1 = sin(lat2) * sin(lat1); part2 = cos(lat2) * cos(lat1) * cos(lng1 - lng2); distance = EARTH_RADIUS * acos(part1 + part2); Tnx Jeroen

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  • Google Maps Api v3 - getBounds is undefined

    - by Via Lactea
    Hi All, I'm switching from v2 to v3 google maps api and got a problem with gMap.getBounds() function. I need to get the bounds of my map after its initialization. Here is my javascript code: var gMap; $(document).ready( function() { var latlng = new google.maps.LatLng(55.755327, 37.622166); var myOptions = { zoom: 12, center: latlng, mapTypeId: google.maps.MapTypeId.ROADMAP }; gMap = new google.maps.Map(document.getElementById("GoogleMapControl"), myOptions); alert(gMap.getBounds()); So now it alerts me that gMap.getBounds() is undefined. I've tryed to get getBounds values in click event and it works fine for me, but I cannot get the same results in load map event. Also getBounds works fine while document is loading in Google Maps API v2, but it fails in V3. Could you please help me to solve this problem?

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  • How to invalidate a single data item in the .net cache in VB

    - by Craig
    I have the following .NET VB code to set and read objects in cache on a per user basis (i.e. a bit like session) '' Public Shared Sub CacheSet(ByVal Key As String, ByVal Value As Object) Dim userID As String = HttpContext.Current.User.Identity.Name HttpContext.Current.Cache(Key & "_" & userID) = Value End Sub Public Shared Function CacheGet(ByVal Key As Object) Dim returnData As Object = Nothing Dim userID As String = HttpContext.Current.User.Identity.Name returnData = HttpContext.Current.Cache(Key & "_" & userID) Return returnData End Function I use these functions to hold user data that I don't want to access the DB for all the time. However, when the data is updated, I want the cached item to be removed so it get created again. How do I make an Item I set disappear or set it to NOTHING or NULL? Craig

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  • jQuery UI dialog and Ajax POST, JSON

    - by Mithun
    Is it possible to combine Ajax post with jQuery UI dialog? And I want to process the ajax reponse in JSON to HTML for showing inside the Dialog box var url = AJAX_URL+requestId+'/'+userId; // Need to POST the requestId and userId instead of GET $("body").append("<div id='dialog-modal'>Loading...</div>"); $("#dialog-modal").dialog("destroy"); $("#dialog-modal").load(url).dialog( { modal: true, title: "Update Status", buttons: { Cancel : function() { $(this).dialog('close'); }, Update: function() { // Do something } } } );

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  • jQuery(document).ready doesn't run under IIS7

    - by gsiler
    To simplify this test case, I created a new default .NET MVC project in Visual Studio 2010, and added the following code to the HTML header in Site.Master: <script type="text/javascript" src="../../Scripts/jquery-1.4.1.js"></script> <script type="text/javascript"> jQuery(document).ready(function () { alert('jQuery document ready'); }); </script> This works as expected in the .NET development server. However, when deployed to IIS7, the jQuery(document).ready function is not executed. Needless to say, my actual application is much more complicated. This eliminates all "suspects" except IIS7 deployment. Any thoughts/suggestions?

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  • jQuery Datepicker - Programatically Limit Second Datepicker

    - by Dodinas
    Hello all, I've recently been using the following piece of code to limit my 2nd Date picker (end date) so that it does not precede the date of the 1st Date picker. $("#datepicker").datepicker({ minDate: +5, maxDate: '+1M +10D', onSelect: function(dateText, inst){ var the_date = dateText; $("#datepicker2").datepicker('option', 'minDate', the_date); } }); $("#datepicker2").datepicker({ maxDate: '+1M +10D', onSelect: function(dateText, inst){ } }); However, lately, I wanted to format my datepickers using: dateFormat: 'yy-mm-dd' But now, the 2nd datepicker actually allows the user to pick a date 1 day before. For example, if the user picks the 1st date: 2010-04-03, when the 2nd Datepicker pops up, they are able to pick 2010-04-02 (1 day before their first selected date). I do not want the user to be able to pick a date that was before their first selected day. Any ideas why this isn't working after I added in the "dateFormat"?

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  • Handling exception from unmanaged dll in C#

    - by StuffHappens
    Hello. I have the following function written in C# public static string GetNominativeDeclension(string surnameNamePatronimic) { if(surnameNamePatronimic == null) throw new ArgumentNullException("surnameNamePatronimic"); IntPtr[] ptrs = null; try { ptrs = StringsToIntPtrArray(surnameNamePatronimic); int resultLen = MaxResultBufSize; int err = decGetNominativePadeg(ptrs[0], ptrs[1], ref resultLen); ThrowException(err); return IntPtrToString(ptrs, resultLen); } catch { return surnameNamePatronimic; } finally { FreeIntPtr(ptrs); } } Function decGetNominativePadeg is in unmanaged dll [DllImport("Padeg.dll", EntryPoint = "GetNominativePadeg")] private static extern Int32 decGetNominativePadeg(IntPtr surnameNamePatronimic, IntPtr result, ref Int32 resultLength); and throws an exception: Attempted to read or write protected memory. This is often an indication that other memory is corrupt. The catch that is in C# code doesn't actually catch it. Why? How to handle this exception? Thank you for your help!

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  • jquery fullcalendar send custom parameter and refresh calendar with JSON

    - by geo
    im trying to use the jquery fullcalendar. The event data comes from the server using JSON. My page has a dropdown element and the fullcalendar div. What i need is to refresh the calendar each time the user changes the dropdown. The selected value of the dropdown should be posted to the server in order to fetch the new event data Here is my code $(document).ready(function() { $('#calendar').fullCalendar({ events: { url : '/myfeed', data : {personId : $('#personDropDown').val() } } }); $('#personDropDown').change(function(){ $('#calendar').fullCalendar('refetchEvents'); }); }); The code above however doesnt work. Any help?

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  • Solving a difficult incomplete type error

    - by ChAoS
    I get an incomplete type error when trying to compile my code. I know that it is related to includes, but my project is large and it uses several templates so I can't find which type is actually incomplete. The error message doesn't help either: Compiling: ../../../addons/ofxTableGestures/src/Graphics/objects/CursorFeedback.cpp In file included from ../../../addons/ofxTableGestures/ext/boost/fusion/include/invoke_procedure.hpp:10, from ../../../addons/ofxTableGestures/src/oscGestures/tuioApp.hpp:46, from /home/thechaos/Projectes/of_preRelease_v0061_linux_FAT/addons/../apps/OF-TangibleFramework/ofxTableGestures/src/Graphics/objects/CursorFeedback.hpp:35, from /home/thechaos/Projectes/of_preRelease_v0061_linux_FAT/addons/../apps/OF-TangibleFramework/ofxTableGestures/src/Graphics/objects/CursorFeedback.cpp:31: ../../../addons/ofxTableGestures/ext/boost/fusion/functional/invocation/invoke_procedure.hpp: In function ‘void boost::fusion::invoke_procedure(Function, const Sequence&) [with Function = void (tuio::CanBasicFingers<Graphic>::*)(long int, float, float, float, float, float), Sequence = boost::fusion::joint_view<boost::fusion::joint_view<boost::fusion::iterator_range<boost::fusion::vector_iterator<const boost::fusion::vector6<long int, float, float, float, float, float>, 0>, boost::fusion::vector_iterator<boost::fusion::vector6<long int, float, float, float, float, float>, 0> >, const boost::fusion::single_view<tuio::CanBasicFingers<Graphic>*> >, boost::fusion::iterator_range<boost::fusion::vector_iterator<boost::fusion::vector6<long int, float, float, float, float, float>, 0>, boost::fusion::vector_iterator<const boost::fusion::vector6<long int, float, float, float, float, float>, 6> > >]’: ../../../addons/ofxTableGestures/src/oscGestures/tuioApp.hpp:122: instantiated from ‘void tuio::AlternateCallback<C, M, E>::run(tuio::TEvent*) [with C = tuio::CanBasicFingers<Graphic>, M = void (tuio::CanBasicFingers<Graphic>::*)(long int, float, float, float, float, float), E = tuio::TeventBasicFingersMoveFinger]’ /home/thechaos/Projectes/of_preRelease_v0061_linux_FAT/addons/../apps/OF-TangibleFramework/ofxTableGestures/src/Graphics/objects/CursorFeedback.cpp:64: instantiated from here ../../../addons/ofxTableGestures/ext/boost/fusion/functional/invocation/invoke_procedure.hpp:88: error: incomplete type ‘boost::fusion::detail::invoke_procedure_impl<void (tuio::CanBasicFingers<Graphic>::*)(long int, float, float, float, float, float), const boost::fusion::joint_view<boost::fusion::joint_view<boost::fusion::iterator_range<boost::fusion::vector_iterator<const boost::fusion::vector6<long int, float, float, float, float, float>, 0>, boost::fusion::vector_iterator<boost::fusion::vector6<long int, float, float, float, float, float>, 0> >, const boost::fusion::single_view<tuio::CanBasicFingers<Graphic>*> >, boost::fusion::iterator_range<boost::fusion::vector_iterator<boost::fusion::vector6<long int, float, float, float, float, float>, 0>, boost::fusion::vector_iterator<const boost::fusion::vector6<long int, float, float, float, float, float>, 6> > >, 7, true, false>’ used in nested name specifier If I copy the conflictive code to a same file I can compile it. So I know that the code itself is OK, the problem is the way I instantiate it. How can I trace the origin of this error? Is there any way to get the trace of the c++ compiler and preprocessor to get more informative messages?

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  • jquery set focus on dynamic content?

    - by Alan
    In jquery I've appended a <li> element to an unordered list. How do I focus on the newly created <li> ? If I do the following: $("ul").append('<li><input type="text">hi!</input></li>'); $("li:last").focus(); //doesn't work because new <li> isn't in dom yet the focus doesn't work, as noted above. I know jquery 1.4.2 has a live() event handler which allows you load event handlers to dynamically added elements, but I'm not sure what I'm doing wrong: $(document).ready(function () { $('li').live('load', function () { alert("hi!"); $("li:last").focus(); }); });

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  • Python- Convert a mixed number to a float

    - by user345660
    I want to make a function that converts mixed numbers and fractions (as strings) to floats. Here's some examples: '1 1/2' -> 1.5 '11/2' -> 5.5 '7/8' -> 0.875 '3' -> 3 '7.7' -> 7.7 I'm currently using this function, but I think it could be improved. It also doesn't handle numbers that are already in decimal representation def mixedtofloat(txt): mixednum = re.compile("(\\d+) (\\d+)\\/(\\d+)",re.IGNORECASE|re.DOTALL) fraction = re.compile("(\\d+)\\/(\\d+)",re.IGNORECASE|re.DOTALL) integer = re.compile("(\\d+)",re.IGNORECASE|re.DOTALL) m = mixednum.search(txt) n = fraction.search(txt) o = integer.search(txt) if m: return float(m.group(1))+(float(m.group(2))/float(m.group(3))) elif n: return float(n.group(1))/float(n.group(2)) elif o: return float(o.group(1)) else: return txt Thanks!

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  • click events issue in jquery.

    - by alex
    I don't know if the title explain this situation well. Below is a code i wrote to create div elements when the button is pressed. Then By clicking on any of the created divs, we can change the div background by choosing a color from the drop down box. However if i click on another div and tried to change the color by selecting another color from the drop down, the previously clicked divs also gets affected by the new color. Why is this happening. I only want the selected div to change color, without affecting the previously clicked divs. I read allot of threads on this site, some of which talks about unbinding clicks, but I'm unable to solve the problem. Thanks for the help. <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js" type="text/javascript"></script> <style> .aaa { width:100px; height:100px;background-color:#ccc;margin-bottom:5px;} p{widht:500px; height:500px; margin:0px; padding:0px;border:2px solid red;color:#000;} </style> <select id="item_select" name="item"> <option value="1">red</option> <option value="2">blue</option> <option value="3">green</option> </select> <button>Click to create divs</button> <p id="ptest"></p> <script type="text/javascript"> var dividcount = 1; $("button").click(run); function run(){ var myDiv = $('<div id=lar'+dividcount+' class=aaa></div>'); $(myDiv).clone().appendTo('#ptest'); $(dividcount++); $("div").bind('click',(function() { var box = $("div").index(this); var idd = (this.id); $("#"+idd).text("div #"+idd); $("select").change(function(){ var str= $("select option:selected").text(); $("#"+idd).css("background-color",str); }); })); }; </script>

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  • Javacript in html - Using single quote inside another single quote

    - by Ashish Nair
    document.getElementById("img").innerHTML="< img src='/sitepath/"+imgg+".jpg' width='72' height='44' onclick='alert('hello');' />"; The above code is my javascript. Problem is printing hello or any other string. If I just type 123 in place of hello, it does give alert. But am not able to use a string like hello there. Normally a string in an alert function is kept inside quotes ' ' but the entire content is inside double quotes and I have already used single quote at the beginning of onclick function. I tried using Escape character ("\") but it didnt help. Any suggestions?

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  • Can't disable jQuery cache

    - by robert_d
    Update I figured out that it must be caching problem but I can't turn cache off. Here is my changed script: <script src="../../Scripts/jquery-1.4.1.js" type="text/javascript"></script> <script type="text/javascript"> jQuery.ajaxSetup({ // Disable caching of AJAX responses cache: false }); jQuery("#button1").click(function (e) { window.setInterval(refreshResult, 3000); }); function refreshResult() { jQuery("#divResult").load("/Home/Refresh"); } </script> It updates part of a web page every 3 sec. It works only once after clearing web browser cache, after that it doesn't work - requests are made to /Home/Refresh without interval of 3 seconds and nothing is displayed on the web page; subsequent requests send cookie ASP.NET_SessionId=wrkx1avgvzwozcn1frsrb2yh. I am using ASP.NET MVC 2 and c#. I have a problem with jQuery, here is how my web app works Search.aspx web page which contains a form and jQuery script posts data to Search() action in Home controller after user clicks button1 button. Search.aspx: <%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<GLSChecker.Models.WebGLSQuery>" %> <asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server"> Title </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <h2>Search</h2> <% Html.EnableClientValidation(); %> <% using (Html.BeginForm()) {%> <fieldset> <div class="editor-label"> <%: Html.LabelFor(model => model.Url) %> </div> <div class="editor-field"> <%: Html.TextBoxFor(model => model.Url, new { size = "50" } ) %> <%: Html.ValidationMessageFor(model => model.Url) %> </div> <div class="editor-label"> <%: Html.LabelFor(model => model.Location) %> </div> <div class="editor-field"> <%: Html.TextBoxFor(model => model.Location, new { size = "50" } ) %> <%: Html.ValidationMessageFor(model => model.Location) %> </div> <div class="editor-label"> <%: Html.LabelFor(model => model.KeywordLines) %> </div> <div class="editor-field"> <%: Html.TextAreaFor(model => model.KeywordLines, 10, 60, null)%> <%: Html.ValidationMessageFor(model => model.KeywordLines)%> </div> <p> <input id ="button1" type="submit" value="Search" /> </p> </fieldset> <% } %> <script src="../../Scripts/jquery-1.4.1.js" type="text/javascript"></script> <script type="text/javascript"> jQuery("#button1").click(function (e) { window.setInterval(refreshResult, 5000); }); function refreshResult() { jQuery("#divResult").load("/Home/Refresh"); } </script> <div id="divResult"> </div> </asp:Content> [HttpPost] public ActionResult Search(WebGLSQuery queryToCreate) { if (!ModelState.IsValid) return View("Search"); queryToCreate.Remote_Address = HttpContext.Request.ServerVariables["REMOTE_ADDR"]; Session["Result"] = null; SearchKeywordLines(queryToCreate); Thread.Sleep(15000); return View("Search"); }//Search() After button1 button is clicked the above script from Search.aspx web page runs. Search() action in controller runs for longer period of time. I simulate this in testing by putting Thread.Sleep(15000); in Search()action. 5 sec. after Submit button was pressed, the above jQuery script calls Refresh() action in Home controller. public ActionResult Refresh() { ViewData["Result"] = DateTime.Now; return PartialView(); } Refresh() renders this partial <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl" % <%= ViewData["Result"] % The problem is that in Internet Explorer 8 there is only one request to /Home/Refresh; in Firefox 3.6.3 all requests to /Home/Refresh are made but nothing is displayed on the web page. Another problem with Firefox is that requests to /Home/Refresh are made every second not every 5 seconds. I noticed that after I clear Firefox cache the script works well first time button1 is pressed, but after that it doesn't work. I would be grateful for helpful suggestions.

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  • Which functions in the C standard library commonly encourage bad practice?

    - by Ninefingers
    Hello all, This is inspired by this question and the comments on one particular answer in that I learnt that strncpy is not a very safe string handling function in C and that it pads zeros, until it reaches n, something I was unaware of. Specifically, to quote R.. strncpy does not null-terminate, and does null-pad the whole remainder of the destination buffer, which is a huge waste of time. You can work around the former by adding your own null padding, but not the latter. It was never intended for use as a "safe string handling" function, but for working with fixed-size fields in Unix directory tables and database files. snprintf(dest, n, "%s", src) is the only correct "safe strcpy" in standard C, but it's likely to be a lot slower. By the way, truncation in itself can be a major bug and in some cases might lead to privilege elevation or DoS, so throwing "safe" string functions that truncate their output at a problem is not a way to make it "safe" or "secure". Instead, you should ensure that the destination buffer is the right size and simply use strcpy (or better yet, memcpy if you already know the source string length). And from Jonathan Leffler Note that strncat() is even more confusing in its interface than strncpy() - what exactly is that length argument, again? It isn't what you'd expect based on what you supply strncpy() etc - so it is more error prone even than strncpy(). For copying strings around, I'm increasingly of the opinion that there is a strong argument that you only need memmove() because you always know all the sizes ahead of time and make sure there's enough space ahead of time. Use memmove() in preference to any of strcpy(), strcat(), strncpy(), strncat(), memcpy(). So, I'm clearly a little rusty on the C standard library. Therefore, I'd like to pose the question: What C standard library functions are used inappropriately/in ways that may cause/lead to security problems/code defects/inefficiencies? In the interests of objectivity, I have a number of criteria for an answer: Please, if you can, cite design reasons behind the function in question i.e. its intended purpose. Please highlight the misuse to which the code is currently put. Please state why that misuse may lead towards a problem. I know that should be obvious but it prevents soft answers. Please avoid: Debates over naming conventions of functions (except where this unequivocably causes confusion). "I prefer x over y" - preference is ok, we all have them but I'm interested in actual unexpected side effects and how to guard against them. As this is likely to be considered subjective and has no definite answer I'm flagging for community wiki straight away. I am also working as per C99.

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  • yui datatable inline cell editor problem

    - by Eli
    Hi, When using inline cell editor in my datatable I want to round value to 10 multiple This is my code : mydatatable.subscribe("cellDblclickEvent",datatable_DetailsCommande.onEventShowCellEditor); var onCellEdit = function(oArgs) { var oColumn=oArgs.editor.getColumn(); var column=oColumn.getKey(); var oRecord = oArgs.editor.getRecord(); var newValue=oRecord.getData(column); var row = this.getRecord(oArgs.target); // calculate the modulo n = newValue % 10; if(n!=0) { newValue=parseInt(newValue); oRecord.setData(column,eval(newValue+(10-n))); } } mydatatable.subscribe("editorSaveEvent", onCellEdit); Function result : After double clicking in cell I change value to 17 for example and I click save, I want then to have 20 in my datatable cell but I got 17. After second time double clicking in my datatable cell I obtain 20 in the inline cell editor. How to put the rounded value in my datatable cell? regards,

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