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  • How to convert datatable to json string using json.net?

    - by Pandiya Chendur
    How to convert datatable to json using json.net? Any suggestion... I ve downloaded the necessary binaries... Which class should i use to get the conversion of my datatable to json? Thus far used this method to get json string by passing my datatable... public string GetJSONString(DataTable table) { StringBuilder headStrBuilder = new StringBuilder(table.Columns.Count * 5); //pre-allocate some space, default is 16 bytes for (int i = 0; i < table.Columns.Count; i++) { headStrBuilder.AppendFormat("\"{0}\" : \"{0}{1}¾\",", table.Columns[i].Caption, i); } headStrBuilder.Remove(headStrBuilder.Length - 1, 1); // trim away last , StringBuilder sb = new StringBuilder(table.Rows.Count * 5); //pre-allocate some space sb.Append("{\""); sb.Append(table.TableName); sb.Append("\" : ["); for (int i = 0; i < table.Rows.Count; i++) { string tempStr = headStrBuilder.ToString(); sb.Append("{"); for (int j = 0; j < table.Columns.Count; j++) { table.Rows[i][j] = table.Rows[i][j].ToString().Replace("'", ""); tempStr = tempStr.Replace(table.Columns[j] + j.ToString() + "¾", table.Rows[i][j].ToString()); } sb.Append(tempStr + "},"); } sb.Remove(sb.Length - 1, 1); // trim last , sb.Append("]}"); return sb.ToString(); } Now i thought of using json.net but dont know where to get started....

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  • How to fix flicker when using Webkit transforms & transitions

    - by gargantaun
    I have a very simple demo working that uses Webkit transforms and transitions for smooth horizontal scrolling between 'panels' (divs). The reason I want to go this route as opposed to a Javascript driven system is that it's for the iPad and Javascript performance is quite poor, but the css transforms and transitions are smooth as silk. Sadly though, I'm getting a lot of flicker on the iPad with my Demo. You can see the demo here You'll need safari or and iPad to see it in action. I've never seen this happening in any of the demos for transforms and transitions so I'm hopeful that this is fixable. Anyway here's the code that powers the thing.... The HTML looks like this. <html> <head> <title>Swipe Demo</title> <link href="test.css" rel="stylesheet" /> <link href="styles.css" rel="stylesheet" /> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="functions.js"></script> <script type="text/javascript" src="swiping.js"></script> </head> <body> <div id="wrapper"> <div class='panel one'> <h1>This is panel 1</h1> </div> <div class='panel two'> <h1>This is panel 2</h1> </div> <div class='panel three'> <h1>This is panel 3</h1> </div> <div class='panel four'> <h1>This is panel 4</h1> </div> </div> </body> </html> The CSS looks like this body, html { padding: 0; margin: 0; background: #000; } #wrapper { width: 10000px; -webkit-transform: translateX(0px); } .panel { width: 1024px; height: 300px; background: #fff; display: block; float: left; position: relative; } and the javascript looks like this // Mouse / iPad Touch var touchSupport = (typeof Touch == "object"), touchstart = touchSupport ? 'touchstart' : 'mousedown', touchmove = touchSupport ? 'touchmove' : 'mousemove', touchend = touchSupport ? 'touchend' : 'mouseup'; $(document).ready(function(){ // set top and left to zero $("#wrapper").css("top", 0); $("#wrapper").css("left", 0); // get total number of panels var panelTotal; $(".panel").each(function(){ panelTotal += 1 }); // Touch Start // ------------------------------------------------------------------------------------------ var touchStartX; var touchStartY; var currentX; var currentY; var shouldMove = false; document.addEventListener(touchstart, swipeStart, false); function swipeStart(event){ touch = realEventType(event); touchStartX = touch.pageX; touchStartY = touch.pageY; var pos = $("#wrapper").position(); currentX = parseInt(pos.left); currentY = parseInt(pos.top); shouldMove = true; } // Touch Move // ------------------------------------------------------------------------------------------ var touchMoveX; var touchMoveY; var distanceX; var distanceY; document.addEventListener(touchmove, swipeMove, false); function swipeMove(event){ if(shouldMove){ touch = realEventType(event); event.preventDefault(); touchMoveX = touch.pageX; touchMoveY = touch.pageY; distanceX = touchMoveX - touchStartX; distanceY = touchMoveY - touchStartY; movePanels(distanceX); } } function movePanels(distance){ newX = currentX + (distance/4); $("#wrapper").css("left", newX); } // Touch End // ------------------------------------------------------------------------------------------ var cutOff = 100; var panelIndex = 0; document.addEventListener(touchend, swipeEnd, false); function swipeEnd(event){ touch = (touchSupport) ? event.changedTouches[0] : event; var touchEndX = touch.pageX; var touchEndY = touch.pageY; updatePanelIndex(distanceX); gotToPanel(); shouldMove = false; } // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- function updatePanelIndex(distance){ if(distanceX > cutOff) panelIndex -= 1; if(distanceX < (cutOff * -1)){ panelIndex += 1; } if(panelIndex < 0){ panelIndex = 0; } if(panelIndex >= panelTotal) panelIndex = panelTotal -1; console.log(panelIndex); } // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- function gotToPanel(){ var panelPos = getTotalWidthOfElement($(".panel")) * panelIndex * -1; $("#wrapper").css("-webkit-transition-property", "translateX"); $("#wrapper").css("-webkit-transition-duration", "1s"); $("#wrapper").css("-webkit-transform", "translateX("+panelPos+"px)"); } }); function realEventType(event){ e = (touchSupport) ? event.targetTouches[0] : event; return e; }

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  • ASP.NET Membership ChangePassword control - Need to check for previous password

    - by Steve
    Hi guys, I have a new table that hold old passwords, I need to check if there is a match. If there is a match I need the ChangePassword contol to NOT change the password. I need to tell the user that this password was used and pic a new one. I can't seem to be able to interrupt the control from changing the password. Maybe I am using the wrong event. Here is a piece of my code, or how I wish it would work. I appreciate all your help. protected void ChangePassword1_ChangedPassword(object sender, EventArgs e) { MembershipUser user = Membership.GetUser(); string usrName = ""; if (user != null) { string connStr = ConfigurationManager.ConnectionStrings["LocalSqlServer"].ConnectionString; SqlConnection mySqlConnection = new SqlConnection(connStr); SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); mySqlCommand.CommandText = "Select UserName from OldPasswords where UserName = 'test'"; mySqlConnection.Open(); SqlDataReader mySqlDataReader = mySqlCommand.ExecuteReader(CommandBehavior.Default); while (mySqlDataReader.Read()) { usrName = mySqlDataReader["UserName"].ToString(); if (usrName == user.ToString()) { Label1.Text = "Match"; } else { Label1.Text = "NO Match!"; } }

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  • Why is it so difficult to get a working IDE for Scala?

    - by Alex R
    I recently gave up trying to use Scala in Eclipse (basic stuff like completion doesn't work). So now I'm trying IntelliJ. I'm not getting very far. This was the original error. See below for update: Scala signature Predef has wrong version Expected 5.0 found: 4.1 in .... scala-library.jar I tried both versions 2.7.6 and 2.8 RC1 of scala-*.jar, the result was the same. JDK is 1.6.u20. UPDATE Today I uninstalled IntelliJ 9.0.1, and installed 9.0.2 Early Availability, with the 4/14 stable version of the Scala plug-in. Then I setup a project from scratch through the wizards: new project from scratch JDK is 1.6.u20 accept the default (project) instead of global / module accept the download of Scala 2.8.0beta1 into project's lib folder Created a new class: object hello { def main(args: Array[String]) { println("hello: " + args); } } For my efforts, I now have a brand-new error :) Here it is: Scalac internal error: class java.lang.ClassNotFoundException [java.net.URLClassLoader$1.run(URLClassLoader.java:202), java.security.AccessController.doPrivileged(Native Method), java.net.URLClassLoader.findClass(URLClassLoader.java:190), java.lang.ClassLoader.loadClass(ClassLoader.java:307), sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301), java.lang.ClassLoader.loadClass(ClassLoader.java:248), java.lang.Class.forName0(Native Method), java.lang.Class.forName(Class.java:169), org.jetbrains.plugins.scala.compiler.rt.ScalacRunner.main(ScalacRunner.java:72)] Thanks

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  • Ruby BigDecimal Round: Is this an error?

    - by peterdp
    While writing a test with a value that gets represented as a BigDecimal, I ran into something weird and decided to dig into it. In brief, '0.00009' when rounded to two decimal places is returned as 0.01 instead of 0.00. Really. Here's my script/console capture: >> bp = BigDecimal('0.09') => #<BigDecimal:210fe08,'0.9E-1',4(8)> >> bp.round(2,BigDecimal::ROUND_HALF_DOWN).to_f => 0.09 >> bp = BigDecimal('0.009') => #<BigDecimal:210bcf4,'0.9E-2',4(8)> >> bp.round(2,BigDecimal::ROUND_HALF_DOWN).to_f => 0.01 >> bp = BigDecimal('0.0009') => #<BigDecimal:2107a8c,'0.9E-3',4(12)> >> bp.round(2,BigDecimal::ROUND_HALF_DOWN).to_f => 0.0 >> bp = BigDecimal('0.00009') => #<BigDecimal:2103428,'0.9E-4',4(12)> >> bp.round(2,BigDecimal::ROUND_HALF_DOWN).to_f => 0.01 >> bp = BigDecimal('0.000009') => #<BigDecimal:20ff0f8,'0.9E-5',4(12)> >> bp.round(2,BigDecimal::ROUND_HALF_DOWN).to_f => 0.0 Oh, and I get the same results if I use the default mode, like so: >> bd = BigDecimal('0.00009') => #<BigDecimal:2152ed8,'0.9E-4',4(12)> >> bd.round(2).to_f => 0.01 Here are my versions: ruby 1.8.6 (2008-03-03 patchlevel 114) [i686-darwin9.2.2] Rails 2.3.4 Has anyone seen anything like this?

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  • Selection Highlight in NSCollectionView

    - by Hooligancat
    On some occasions my head just hurts from banging it against the Cocoa wall. Today is one of those days. I have a working NSCollectionView with one minor, but critical, exception. Getting and highlighting the selected item within the collection. I've had all this working prior to Snow Leopard, but something appears to have changed and I can't quite place my finger on it, so I took my NSCollectionView right back to a basic test and followed Apple's documentation for creating an NSCollectionView here: http://developer.apple.com/mac/library/DOCUMENTATION/Cocoa/Conceptual/CollectionViews/Introduction/Introduction.html The collection view works fine following the quick start guide. However, this guide doesn't discuss selection other than "There are such features as incorporating image views, setting objects as selectable or not selectable and changing colors if they are selected". Using this as an example I went to the next step of binding the Array Controller to the NSCollectionView with the controller key selectionIndexes, thinking that this would bind any selection I make between the NSCollectionView and the array controller and thus firing off a KVO notification. I also set the NSCollectionView to be selectable in IB. There appears to be no selection delegate for NSCollectionView and unlike most Cocoa UI views, there appears to be no default selected highlight. So my problem really comes down to a related issue, but two distinct questions. How do I capture a selection of an item? How do I show a highlight of an item? NSCollectionView's programming guides seem to be few and far between and most searches via Google appear to pull up pre-Snow Leopard implementations, or use the view in a separate XIB file. For the latter (separate XIB file for the view), I don't see why this should be a pre-requisite otherwise I would have suspected that Apple would not have included the view in the same bundle as the collection view item. I know this is going to be a "can't see the wood for the trees" issue - so I'm prepared for the "doh!" moment. As usual, any and all help much appreciated.

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  • Need help with artificial neural network

    - by deckard cain
    I have an input data for neural network that consists of 2 vectors with 200 elements, that i got from some program for generating signals. So it is actually 2x200 input to my nnet. As target data, i have one 1x200 vector that i also got from the same program. That is my training data set. I gather as much of those sets as i want so i transfer them to matlab and save them as, for example, set1, set2,.... When i am creating neural net, using newfit function (backropagation algorithm and everyhting else is set by default because i am kind of unexperianced with neural nets so i will have to experiment) i'm creating it using set1 only for example. Then, when i am to train neural net i train it for set1 then load set2 and train for it and so on. so its like this function net = create_fit_net(inputs,targets) numHiddenNeurons = 20; net = newfit(inputs,targets,numHiddenNeurons); net=train(net,inputs,targets); load set2; net=train(net,inputs,targets); load set3; net=train(net,inputs,targets); load set4; net=train(net,inputs,targets); i am using 4 sets of data here and all sets have variables of same name and size. My quesion is, am i doing this the right way, because, when doing simulation in some other m file, i am getting bad results, and every time i get different results. Does it matter if i create network with one set and then train with others too, and does it matter what set do i use to train network 1st? Also, i am confused about the amount of neurons to use (im using in the example 20 but actually i tried 1, 10, 30, 50, 100 200 and even 300 and i get nothing). If you have any suggestions, i'd be glad to take them into consideration. Any help is welcome. thanks in advance

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  • Traversing/Manipulating new window from parent window with jquery

    - by Anthony
    I found a question already with a possible solution, but I had already tried the method suggested before reading it, and it even says it's inconsistent. So I guess I'm wondering why this doesn't work: $("img").click(function() { var imgwindow = window.open('imgwin.html','','width=460,height=345'); alert(imgwindow.find("img").attr("src")); }); The goal is to set the new window's img to the same src as the image that the user clicked to open the new window. But in the above scenario, I'm just trying to tap into the new window to get what it's already-set src. I have imgwin.html already written with a default src for the image, so it should alert that url. Instead I just get undefined. I also tried the following (which should be identical on the back end), but with the same results: $("img").click(function() { var imgwindow = window.open('imgwin.html','','width=460,height=345'); alert($("img",imgwindow).attr("src")); }); I even tried variations of wrapping the imgwindow variable in $() in case somehow jquery wasn't picking up on the variable as a DOM element. The only thing I can guess is that since window.open() is a method, jquery doesn't treat it like a DOM element, even though all documentation from basic javascript tutorials treat the variable as both a method to open the window and the pointer to the window's inner DOM.

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  • WPF: disable inheritance of properties

    - by Maximilian Csuk
    Hi! I would like to use a TabControl as the main navigation in the application I am working on. So I would like to make the font in the headers of the TabItems bigger and also give it another background-color. However, I do not want this to be inherited. For example, if I use this code: <TabControl FontSize="18pt"> <TabItem Header="Tab 1"> <Button>Button 1</Button> </TabItem> </TabControl> The font in the button is also 18pt big. I know that this is normal dependency property behaviour because the property is inherited, but that's not what I want in this case. I would like to change the TabItems without changing anything in the children. Isn't that possible? Because re-setting all children to default values is a PITA. Thanks for your time.

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  • jquery dynamic form plugin: adding nested field support

    - by goliatone
    Hi, Im using the jQuery dynamic form plugin, but i need support for nested field duplication. I would like some advice on how to modify the plugin to add such functionality. Im not a javascript/jQuery developer, so any advice on which route to take will be much appreciated. I can provide the plugin's code: /** * @author Stephane Roucheray * @extends jQuery */ jQuery.fn.dynamicForm = function (plusElmnt, minusElmnt, options){ var source = jQuery(this), minus = jQuery(minusElmnt), plus = jQuery(plusElmnt), template = source.clone(true), fieldId = 0, formFields = "input, checkbox, select, textarea", insertBefore = source.next(), clones = [], defaults = { duration:1000 }; // Extend default options with those provided options = $.extend(defaults, options); isPlusDescendentOfTemplate = source.find("*").filter(function(){ return this == plus.get(0); }); isPlusDescendentOfTemplate = isPlusDescendentOfTemplate.length > 0 ? true : false; function normalizeElmnt(elmnt){ elmnt.find(formFields).each(function(){ var nameAttr = jQuery(this).attr("name"), idAttr = jQuery(this).attr("id"); /* Normalize field name attributes */ if (!nameAttr) { jQuery(this).attr("name", "field" + fieldId + "[]"); } if (!/\[\]$/.exec(nameAttr)) { jQuery(this).attr("name", nameAttr + "[]"); } /* Normalize field id attributes */ if (idAttr) { /* Normalize attached label */ jQuery("label[for='"+idAttr+"']").each(function(){ jQuery(this).attr("for", idAttr + fieldId); }); jQuery(this).attr("id", idAttr + fieldId); } fieldId++; }); }; /* Hide minus element */ minus.hide(); /* If plus element is within the template */ if (isPlusDescendentOfTemplate) { function clickOnPlus(event){ var clone, currentClone = clones[clones.length -1] || source; event.preventDefault(); /* On first add, normalize source */ if (clones.length == 0) { normalizeElmnt(source); currentClone.find(minusElmnt).hide(); currentClone.find(plusElmnt).hide(); }else{ currentClone.find(plusElmnt).hide(); } /* Clone template and normalize it */ clone = template.clone(true).insertAfter(clones[clones.length - 1] || source); normalizeElmnt(clone); /* Normalize template id attribute */ if (clone.attr("id")) { clone.attr("id", clone.attr("id") + clones.length); } plus = clone.find(plusElmnt); minus = clone.find(minusElmnt); minus.get(0).removableClone = clone; minus.click(clickOnMinus); plus.click(clickOnPlus); if (options.limit && (options.limit - 2) > clones.length) { plus.show(); }else{ plus.hide(); } clones.push(clone); } function clickOnMinus(event){ event.preventDefault(); if (this.removableClone.effect && options.removeColor) { that = this; this.removableClone.effect("highlight", { color: options.removeColor }, options.duration, function(){that.removableClone.remove();}); } else { this.removableClone.remove(); } clones.splice(clones.indexOf(this.removableClone),1); if (clones.length == 0){ source.find(plusElmnt).show(); }else{ clones[clones.length -1].find(plusElmnt).show(); } } /* Handle click on plus */ plus.click(clickOnPlus); /* Handle click on minus */ minus.click(function(event){ }); }else{ /* If plus element is out of the template */ /* Handle click on plus */ plus.click(function(event){ var clone; event.preventDefault(); /* On first add, normalize source */ if (clones.length == 0) { normalizeElmnt(source); jQuery(minusElmnt).show(); } /* Clone template and normalize it */ clone = template.clone(true).insertAfter(clones[clones.length - 1] || source); if (clone.effect && options.createColor) { clone.effect("highlight", {color:options.createColor}, options.duration); } normalizeElmnt(clone); /* Normalize template id attribute */ if (clone.attr("id")) { clone.attr("id", clone.attr("id") + clones.length); } if (options.limit && (options.limit - 3) < clones.length) { plus.hide(); } clones.push(clone); }); /* Handle click on minus */ minus.click(function(event){ event.preventDefault(); var clone = clones.pop(); if (clones.length >= 0) { if (clone.effect && options.removeColor) { that = this; clone.effect("highlight", { color: options.removeColor, mode:"hide" }, options.duration, function(){clone.remove();}); } else { clone.remove(); } } if (clones.length == 0) { jQuery(minusElmnt).hide(); } plus.show(); }); } };

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  • Grails Mail port configuration

    - by bsreekanth
    Hello, I am trying to send mail through grails mail plugin. I configured according to the documentation, and also followed few blog posts (http://blog.lourish.com/2010/04/02/sending-asynchronous-html-email-in-grails-with-activemq-jms-and-gmail/). That post mention that the closure way of declaring the configuration overrides others, but not true. Anyway I tried both approach, but seems like the port is still use the smtp default one. I get the below exception. exception: org.springframework.mail.MailSendException: Mail server connection failed; nested exception is javax.mail.MessagingException: Could not connect to SMTP host: localhost, port: 25; nested exception is: java.net.ConnectException: Connection refused: connect Now, I wrote a small program directly using the java mail library, and I could send the mail with that. The configuration is shown below. tried additional config "mail.smtp.port":"465"", but no change.. used the parameters mentioned in the above blog post, result same grails { mail { host = "smtp.gmail.com" port = "465" username = "[email protected]" password = "mypwd" props = ["mail.smtp.auth":"true", // "mail.smtp.port":"465", "mail.smtp.socketFactory.port":"465", "mail.smtp.socketFactory.class":"javax.net.ssl.SSLSocketFactory", "mail.smtp.socketFactory.fallback":"false"] } } thanks in advance.. Update: It is not port or firewall config, as when I made a grails application from scratch, and tried with the same config, everything works. Also, asked in grails forum http://grails.1312388.n4.nabble.com/grails-mail-mailSender-does-not-have-config-values-td2237704.html#a2237704 . Hope get a lead to try.

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  • Adding click/double-click events to static group box controls

    - by omatai
    Having realised my own reasons were way too dubious, I've now gone about this a different way. But I'm still curious... For reasons of nostalgia, familiarity and laziness, I'm coding a UI with MFC. For dubious reasons (as if those were not enough), I wanted to add a (double-)click event to a group box. Naturally, the group box contains things - in fact, it contains another static item, to which I can successfully add a (double-)click event handler. Is there any reason I cannot get an event handler to work for clicks on my group box the same way I can do that for the simple text static item? No amount of clicking on, in or near the control fires the event. Note - I've read through http://www.codeproject.com/KB/static/staticctrl_tut.aspx and tried responding to both ON_STN_... events and ON_BN_... messages, setting the notify style (BS_NOTIFY appears in the rc file)... and still I'm missing something - what is it? Is it even possible? Most of what I've googled suggests it is... but without clear answers for C++/MFC. Since first posting this question, I've found reference to a WM_NCHITTEST message, and hints that you have to create a handler for this message to override the group box default behaviour of responding with HT_TRANSPARENT... despite having its transparent property in ClassWizard set to false. Hmmm. Can anyone confirm that this is indeed the key?

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  • MATLAB Builder NE crash apppool on IIS 7.5

    - by Alkersan
    Im developing a web user interface for MATLAB functions with ASP.NET. Ive started with studying demos and stucked with such problem. I created a MyComponent.dll assembly with deploytool from MATLAB 2010a, target framework - 3.5. This component has one function GetKnot() which returns a figure. function df = getKnot() f = figure('Visible', 'off'); knot; df = webfigure(f); close(f); end Then I made simple webapp in visual studio 2008 sp1, with only one page Default.aspx. I added references to MWArray.dll, WebFiguresService.dll and MyComponent.dll. The codeBehind is: using System; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using MyComponent; using MathWorks.MATLAB.NET.WebFigures; namespace MATLAB_WebApplication { public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { var myComponentClass = new MyComponentClass(); var x = myComponentClass.getKnot(); //WebFigureControl1.WebFigure = new WebFigure(); } } } When I run this page on Visual Studio`s Development web server - everything is fine, figure works. But when I`m trying to deploy webfigure on my local iis 7.5 which runs on Win7 x32 - iis app pool crashes. There is an entry in System Event Log "A process serving application pool 'Classic .NET AppPool' suffered a fatal communication error with the Windows Process Activation Service. The process id was '3676'. The data field contains the error number 6D000780". This happens when MyComponent is instantiating. What I could forget when moved to IIS? Other examples, like magic square console application, runs perfect, and every matlab component instantiating, but not in IIS environment.

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  • Exchanging strings (PChar) between a Freepascal compiled DLL and a Delphi compiled EXE

    - by John Riche
    After a lot of experimentations, I found a way to exchange PChar from a FreePascal compiled DLL with a Delphi compiled EXE. I'm in charge of both the DLL and EXE source code but one MUST BE in FreePascal and the other one in Delphi. My solution involves the following methods in the DLL: function GetAString(): PChar; var aString: string; begin aString := 'My String'; result := StrAlloc(length(aString) + 1); StrPCopy(result, aString); end; procedure FreeString(aString: PChar); begin StrDispose(aString); end; And from the Delphi EXE, to call the GetAString method, I need to Call the GetAString method, save the PChar to an actual Delphi String and call the FreeString method. Is this the best way of exchanging a string from a FreePascal DLL with a Delphi EXE ? Can I avoid the call to FreeString from Delphi ? And finally, if that's the correct solution, how will it behave with Delphi 2010 and the WideString by default: do I need to force WidePChar in FreePascal too ?

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  • iPhone Development - CLLocationManager vs. MapKit

    - by Mustafa
    If i want to show userLocation on the map, and at the same time record the user's location, is it a good idea to add an observer to userLocation.location and record the locations, OR should i still use CLLocationManager for recording user location and use mapView.showUserLocation to show the user's current location (blue indicator)? I want to show the default blue indicator supported by the MapKit API. Also, here's a rough sample code: - (void)viewDidLoad { ... locationManager = [[CLLocationManager alloc] init]; locationManager.desiredAccuracy = kCLLocationAccuracyBest; locationManager.distanceFilter = DISTANCE_FILTER_VALUE; locationManager.delegate = self; [locationManager startUpdatingLocation]; myMapView.showUserLocation = YES; [myMapView addObserver:self forKeyPath:@"userLocation.location" options:0 context:nil]; ... } - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context { // Record the location information // ... } - (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation { NSLog(@"%s begins.", __FUNCTION__); // Make sure that the location returned has the desired accuracy if (newLocation.horizontalAccuracy <= manager.desiredAccuracy) return; // Record the location information // ... } Under the hood, i think MKMapView also uses CLLocationManager to get user's current location? So, will this create any problems because i believe both CLLocationManager and MapView will try to use same location services? Will there be any conflicts and lack of accurate/required or current data?

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  • Web-design / UI advice

    - by Damian
    I'm working on a website on a Fmylife style. Now the homepage is the page showing the list of the latest posts. But I think there is a problem with that: The most "interesting" page is the one showing the top posts of the last days, but that page has very few visits compared to the main page. I suppose that's only because the main page is the "default" one. So, I've been thinking of making a home page that shows no posts (only one at the top of the page) but 4 big buttons showing the visitors what are the options to browse the content. But I'm also afraid that most users will not click any option and leave the site having seen no posts. So I don't know what to do. Obviously I have no idea of what will be good from a usability/efficiency point of view. Maybe a mix of the two options will be the best, but I don't know how to mix them. Any advice or idea will be greatly appreciated. The current home page looks like this: http://soquestion.latest.secretsapp.appspot.com/latest The new home page would look like this: http://soquestion.latest.secretsapp.appspot.com/

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  • Why would Basic Auth not work with my WCF client to Java SOAP Web Service?

    - by orj
    I have a Java based web service that requires basic authentication to communicate with it. If I type the WSDL url into my browser I'm prompted for Basic Auth. Which I can get by entering the correct credentials. However using my WCF client doesn't work. I construct my WCF client like this: var binding = new BasicHttpBinding { MaxReceivedMessageSize = 2048 * 10240, Security = { Mode = BasicHttpSecurityMode.TransportCredentialOnly, Transport = { ClientCredentialType = HttpClientCredentialType.Basic, Realm = "MYREALM", ProxyCredentialType = HttpProxyCredentialType.None }, Message = { ClientCredentialType = BasicHttpMessageCredentialType.UserName, AlgorithmSuite = SecurityAlgorithmSuite.Default } } }; var client = new WebServiceClient(binding, endpoint); client.ClientCredentials.UserName.UserName = username; client.ClientCredentials.UserName.Password = password; client.DoWebServiceMethod(); I get the following exception. System.Net.WebException: The remote server returned an error: (401) Unauthorized. at System.Net.HttpWebRequest.GetResponse() at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout) System.ServiceModel.Security.MessageSecurityException: The HTTP request is unauthorized with client authentication scheme 'Basic'. The authentication header received from the server was 'Basic realm="MYREALM"'. From what I can tell I'm doing things right. Where am I going wrong?

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  • How to install FFMpeg in WampServer 2.0 (Windows XP)

    - by Richard Knop
    I need to install the ffmpeg PHP extension on my localhost so I can test few of my scripts but I am having troubles figuring out how to do that. I have WampServer 2.0 with PHP 5.2.9-2, my OS is Windows XP. Please somebody give me step by step instructions. I have found some Windows builds here: http://sourceforge.net/projects/ffmpeg-php/files/ But I don't know which one to download and what to do with files. EDITED: What I have done so far: Download ffmpeg_new Copy php_ffmpeg.dll from the php5 folder to the C:\wamp\bin\php\php5.2.9-2\ext Copy files from common to the windows/system32 folder Add extension=php_ffmpeg.dll to php.ini file Restarted all services (Apache, PHP...) I am gettings an error after using this code: $extension = 'ffmpeg'; $extension_soname = 'php_ffmpeg.dll'; $extension_fullname = PHP_EXTENSION_DIR . "/" . $extension_soname; // load extension if(false === extension_loaded($extension)) { if (false === dl($extension_soname)) throw new Exception("Can't load extension $extension_fullname\n"); } The error: Warning: dl() [function.dl]: Not supported in multithreaded Web servers - use extension=ffmpeg.dll in your php.ini in C:\wamp\www\hunnyhive\application\modules\default\controllers\MyAccountController.php on line 314 Plus I also get the exception from above.

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  • MySQL Connection Timeout Issue - Grails Application on Tomcat using Hibernate and ORM

    - by gav
    Hi Guys I have a small grails application running on Tomcat in Ubuntu on a VPS. I use MySql as my datastore and everything works fine unless I leave the application for more than half a day (8 hours?). I did some searching and apparently this is the default wait_timeout in mysql.cnf so after 8 hours the connection will die but Tomcat won't know so when the next user tries to view the site they will see the connection failure error. Refreshing the page will fix this but I want to get rid of the error altogether. For my version of MySql (5.0.75) I have only my.cnf and it doesn't contain such a parameter, In any case changing this parameter doesn't solve the problem. This Blog Post seems to be reporting a similar error but I still don't fully understand what I need to configure to get this fixed and also I am hoping that there is a simpler solution than another third party library. The machine I'm running on has 256MB ram and I'm trying to keep the number of programs/services running to a minimum. Is there something I can configure in Grails / Tomcat / MySql to get this to go away? Thanks in advance, Gav From my Catalina.out; 2010-04-29 21:26:25,946 [http-8080-2] ERROR util.JDBCExceptionReporter - The last packet successfully received from the server was 102,906,722 milliseconds$ 2010-04-29 21:26:25,994 [http-8080-2] ERROR errors.GrailsExceptionResolver - Broken pipe java.net.SocketException: Broken pipe at java.net.SocketOutputStream.socketWrite0(Native Method) ... 2010-04-29 21:26:26,016 [http-8080-2] ERROR util.JDBCExceptionReporter - Already closed. 2010-04-29 21:26:26,016 [http-8080-2] ERROR util.JDBCExceptionReporter - Already closed. 2010-04-29 21:26:26,017 [http-8080-2] ERROR servlet.GrailsDispatcherServlet - HandlerInterceptor.afterCompletion threw exception org.hibernate.exception.GenericJDBCException: Cannot release connection at java.lang.Thread.run(Thread.java:619) Caused by: java.sql.SQLException: Already closed. at org.apache.commons.dbcp.PoolableConnection.close(PoolableConnection.java:84) at org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.close(PoolingDataSource.java:181) ... 1 more

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  • error: switch quantity not an integer

    - by nikeunltd
    I have researched my issue all over StackOverflow and multi-google links, and I am still confused. I figured the best thing for me is ask... Im creating a simple command line calculator. Here is my code so far: const std::string Calculator::SIN("sin"); const std::string Calculator::COS("cos"); const std::string Calculator::TAN("tan"); const std::string Calculator::LOG( "log" ); const std::string Calculator::LOG10( "log10" ); void Calculator::set_command( std::string cmd ) { for(unsigned i = 0; i < cmd.length(); i++) { cmd[i] = tolower(cmd[i]); } command = cmd; } bool Calculator::is_legal_command() const { switch(command) { case TAN: case SIN: case COS: case LOG: case LOG10: return true; break; default: return false; break; } } the error i get is: Calculator.cpp: In member function 'bool Calculator::is_trig_command() const': Calculator.cpp: error: switch quantity not an integer Calculator.cpp: error: 'Calculator::TAN' cannot appear in a constant-expression Calculator.cpp: error: 'Calculator::SIN' cannot appear in a constant-expression Calculator.cpp: error: 'Calculator::COS' cannot appear in a constant-expression The mighty internet, it says strings are allowed to be used in switch statements. Thanks everyone, I appreciate your help.

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  • How can I create a custom UIToolbar like component in a UITableViewController?

    - by Tony
    I have a UITableViewController. I want a "toolbar-ish" component at the bottom. I started by using a background image and a button. In interface builder, I added them to the bottom of the iPhone screen. The problem I ran into was that the background image and button scrolled with the table. I obviously need this fixed at the bottom. Not finding too much direction online, I decided to customize a UIToolbar to look how I want since the position is fixed by default. In my initWithNibName for my UITableViewController, I have: UIImage *shuffleButtonImage = [UIImage imageNamed:@"shuffle_button.png"]; NSArray* toolbarItems = [NSArray arrayWithObjects: [[UIBarButtonItem alloc] initWithImage:shuffleButtonImage style:UIBarButtonItemStylePlain target:self action:@selector(push:)], nil]; [toolbarItems makeObjectsPerformSelector:@selector(release)]; self.toolbarItems = toolbarItems; The problem I am running into now is that the "shuffleButtonImage" is not showing up properly. The shape of the button shows up fine but it is colored white and therefore does not look like the image. Does anyone know why a "white image" would be showing instead of the actual image? Also does it sound like a good idea to customize a UIToolbar or is there a simple way to ensure a fixed position "toolbar-ish" component. To reiterate - my "toolbar-ish" component only needs to be one button at the button of my UITableView. The single button has a gradient color background that I create with an image.

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  • Connecting to Oracle 10g from .NET

    - by Xinus
    I am trying to connect to oracle server located at some IP address but always get error as System.TypeInitializationException: The type initializer for 'Oracle.DataAccess.Client.OracleConnection' threw an exception. --- Oracle.DataAccess.Client.OracleException The provider is not compatible with the version of Oracle client at Oracle.DataAccess.Client.OracleInit.Initialize() at Oracle.DataAccess.Client.OracleConnection..cctor() --- End of inner exception stack trace --- at Oracle.DataAccess.Client.OracleConnection..ctor(String connectionString) at WebApplication1._Default.Page_Load(Object sender, EventArgs e) in C:\Users\Sunil\Documents\Visual Studio 2008\Projects\WebApplication1\WebApplication1\Default.aspx.cs:line 26 Here is a test file using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; using Oracle.DataAccess.Client; namespace WebApplication1 { public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { try { string oradb = "Data Source=(DESCRIPTION=(ADDRESS_LIST=" + "(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.11)(PORT=1523)))" + "(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=ORCL)));" + "User Id=<user id>;Password=<some password>;"; OracleConnection conn = new OracleConnection(oradb); // C# conn.Open(); } catch (Exception ex){ Label1.Text = ex.ToString(); } } } } I have installed 10gR2 client and oracle 10gR2 provider for ASP.NET. Am I missing anything ?

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  • Differing paths for lua script and app

    - by Person
    My problem is that I'm having trouble specifying paths for Lua to look in. For example, in my script I have a require("someScript") line that works perfectly (it is able to use functions from someScript when the script is run standalone. However, when I run my app, the script fails. I believe this is because Lua is looking in a location relative to the application rather than relative to the script. Hardcoding the entire path down to the drive isn't an option since people can download the game wherever they like so the highest I can go is the root folder for the game. We have XML files to load in information on objects. In them, when we specify the script the object uses, we only have to do something like Content\Core\Scripts\someScript.lua where Content is in the same directory as Debug and the app is located inside Debug. If I try putting that (the Content\Core...) in Lua's package.path I get errors when I try to run the script standalone. I'm really stuck, and am not sure how to solve this. Any help is appreciated. Thanks. P.S. When I print out the default package.path in the app I see syntax like ;.\?.lua in a sequence like... ;.\?.lua;c:...(long file path)\Debug\?.lua; I assume the ; means the end of the path, but I have no idea what the .\?.lua means. Any Lua file in the directory?

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  • Bluetooth development on Windows mobile 6 C#

    - by cheesebunz
    Hi everyone, i recently started on a project which is a puzzle slider game. This application will be using the Bluetooth, and i'm working on the mobile,Samsung omnia i900. This is how my application will work. Any user with this Samsung device plays the game and starts sliding the tiles. There is an option to search and connect to other users with the same device and application, so that they can solve the puzzle together. Right now, i'm working on the Bluetooth Part but am still new to the API. I'm using the 32feet.NET inthehandpersonal.net class library while encountering much difficulties. I am able to search for devices by using: private void btnSearch_Click(object sender, EventArgs e) { BluetoothRadio.PrimaryRadio.Mode = RadioMode.Discoverable; BluetoothRadio myRadio = BluetoothRadio.PrimaryRadio; lblSearch.Text = "" + myRadio.LocalAddress.ToString(); bluetoothClient = new BluetoothClient(); Cursor.Current = Cursors.WaitCursor; BluetoothDeviceInfo[] bluetoothDeviceInfo = { }; bluetoothDeviceInfo = bluetoothClient.DiscoverDevices(10); comboBox1.DataSource = bluetoothDeviceInfo; comboBox1.DisplayMember = "DeviceName"; comboBox1.ValueMember = "DeviceAddress"; comboBox1.Focus(); Cursor.Current = Cursors.Default; } Well, to be honest this is a rip off from some sources i found on the internet but i do understand this part. Next i went on to trying to sending a simple "testing.txt" file and i'm stucked at it. I think i will be using something like the OBEX and Obexwebrequest, obexwebresponse, Uri etc. Could anyone explain it in simple terms for me so that i could understand what they are so that i could continue pairing and etc on Bluetooth development. Sorry making it this long, really appreciate if anyone did waste some time reading it :). Hope alanM sees this :) i'm using their bluetooth library.

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  • How to use webbrowser control DocumentCompleted event in C# ?

    - by Margus
    Before starting writing this question, i was trying to solve following // 1. navigate to page // 2. wait until page is downloaded // 3. read and write some data from/to iframe // 4. submit (post) form The problem was, that if a iframe exists on a web page, DocumentCompleted event would get fired more then once (after each document has been completed). It was highly likely that program would have tried to read data from DOM that was not completed and naturally - fail. But suddenly while writing this question 'What if' monster inspired me, and i fix'ed the problem, that i was trying to solve. As i failed Google'ing this, i thought it would be nice to post it here. private int iframe_counter = 1; // needs to be 1, to pass DCF test public bool isLazyMan = default(bool); /// <summary> /// LOCK to stop inspecting DOM before DCF /// </summary> public void waitPolice() { while (isLazyMan) Application.DoEvents(); } private void webBrowser1_Navigating(object sender, WebBrowserNavigatingEventArgs e) { if(!e.TargetFrameName.Equals("")) iframe_counter --; isLazyMan = true; } private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) { if (!((WebBrowser)sender).Document.Url.Equals(e.Url)) iframe_counter++; if (((WebBrowser)sender).Document.Window.Frames.Count <= iframe_counter) {//DCF test DocumentCompletedFully((WebBrowser)sender,e); isLazyMan = false; } } private void DocumentCompletedFully(WebBrowser sender, WebBrowserDocumentCompletedEventArgs e){ //code here } For now at least, my 5m hack seems to be working fine. Maybe i am really failing at querying google or MSDN, but i can not find: "How to use webbrowser control DocumentCompleted event in C# ?"

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