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  • jQuery.load() Retrieving partial page content causes duplicate ID in DOM

    - by Warren Buckley
    Hello all, I currently have a JS function that allows me to load partial content from another page into the current page using jQuery.load() However I noticed when using this that I get a duplicate ID in the DOM (when inspecting with FireBug) This function is used in conjuction with a Flash Building viewe so it does not contain any code to retrieve the URL from the anchor tag. function displayApartment(apartmentID) { $("#apartmentInfo").load(siteURL + apartmentID + ".aspx #apartmentInfo", function () { //re-do links loaded in $("a.gallery").colorbox({ opacity: "0.5" }); }); } The code above works just fine in retrieving the content, however it just bugs me that when inspecting with firebug I get something like this. <div id="apartmentInfo"> <div id="apartmentInfo"> <!-- Remote HTML here..... --> </div> </div> Can anyone please suggest anything on how to remove the duplicate div? Thanks, Warren

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  • Where did my Toolbar button go?

    - by Driss Zouak
    When MyView gets pushed on to the NavigationController, I have the following code public override void ViewDidLoad () { this.NavigationController.Toolbar.SetItems(new UIBarButtonItem[] { new UIBarButtonItem("Next",UIBarButtonItemStyle.Plain, ClickNext) }, true); this.NavigationItem.Title = "Proposal Plan - Step 1"; } The Title gets set properly, and the code runs but in my Toolbar at the bottom of the view I don't have the "Next" button I am expecting. I put a breakpoint and verified that the Toolbar after running that line does have my button, but still nothing. What am I mising?

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  • Logging ASMX Requests and Responses from Client

    - by John
    Hi, I've got a C# web application which I can't easily update the code of. However, I can make configuration changes to the application. The application calls out to a third-party ASMX web service, and I really need (if at all possible) to log the full XML requests and responses. I have no control over the web service so I have to do it from the client. I'm not using WCF - this is standard ASMX web service calls. Is there any way I can log the XML requests and responses from the client web app without having to redeploy the code? Thanks in advance John

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  • "Object reference not set to an instance of an object": why can't .NET show more details?

    - by Simon Chadwick
    "Object reference not set to an instance of an object" This is probably one of the most common run-time errors in .NET. Although the System.Exception has a stack trace, why does the exception not also show the name of the object reference field, or at least its type? Over the course of a year I spend hours sifting through stack traces (often in code I did not write), hoping there is a line number from a ".pdb" file, then finding the line in the code, and even then it is often not obvious which reference on the line was null. Having the name of the reference field would be very convenient. If System.ArgumentNullException instances can show the name of the method parameter ("Value cannot be null. Parameter name: value"), then surely System.NullReferenceException instances could include the name of the null field (or its containing collection).

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  • PHP and Classes: access to parent's public property within the parent class

    - by takpar
    Hi, here is what my code looks like i have two forms: class Form_1 extends Form_Abstract { public $iId = 1; } class Form_2 extends Form_1 { public $iId = 2; } i expect the code behave like this: $oForm = new Form_2; echo $oForm->getId(); // it returns '2' echo $oForm->getParentId(); // i expect it returns '1' here is my Form_Abstract class: class Form_Abstract { public $iId = 0; public function getId() { return $this->iId; } /** this method will be called from a child instance */ public function getParentId() { return parent::$iId; } } but it throws a Fatal Error: Fatal error: Cannot access parent:: when current class scope has no parent please help me with the method getParentId()

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  • Java: exception-throwing class?

    - by HH
    I have classes DirReader and Search. The search uses DirReader. I want the search to know when DirReader throws exception. So how can I have class throwing exception? Currently, I use initCorrect -dummy var. Exception-style method may be more appropriate. Simplified Example Error $ javac ExceptionStatic.java ExceptionStatic.java:4: '{' expected public class ExceptionStatic throws Exception{ ^ 1 error Code import java.util.*; import java.io.*; // THIS PART NEEDS TO BE FIXED: public class ExceptionStatic throws Exception{ private static boolean initCorrect = false; public static String hello; static{ try{ hello = "hallo"; //some other conditionals in real code if( true) throw new Exception(); initCorrect=true; }catch(Exception e){ e.printStackTrace(); } } public static void main(String[] args){ if(initCorrect) System.out.println(hello); } }

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  • Is there CI server software that can do all of this?

    - by SnOrfus
    I'm trying to put together a Continuous Integration server that will do the following: Work with subversion Use NUnit tests (fail build on failed tests) Use partcover (fail build on < X% coverage) Run code against FxCop (fail build on FxCop warnings, given settings) Run code against StyleCop (fail build on StyleCop warnings, given settings) Not as important: Be able to run from a sln file Be able to publish the application (ClickOnce is setup for the project already) I'm using TeamCity right now and it doesn't seem to do 3 or 5, and it doesn't have a runner for the newest NUnit. From the list of plugins that hudson has, it looks like it can do all of these except 3 (and the not as important requests). I've considered writing a plugin for hudons to use partcover, but that's adding more time to setting up a build server.

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  • Image scaling in C

    - by Ganesh
    Hi, I am designing a jpeg to bmp decoder which scales the image. I have been supplied with the source code for the decoder so my actual work is to design a scaler . I do not know where to begin. I have scouted the internet for the various scaling algorithms but am not sure where to introduce the scaling. So should I do the the scaling after the image is converted into bmp or should I do this during the decoding at the MCU level. am confused :( If you guys have some information to help me out, its appreciated. any material to read, source code to analyse etc....

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  • What Is The Best Database For Delphi Desktop Applications That Supports Stored Procedures?

    - by Cape Cod Gunny
    I started with Turbo Pascal 3, went to TP5, Bought TP6 called Borland the next day and downgraded to TP5.5. Bought Delphi 3, and now have Delphi 5 Enterprise. I sort of lost interest in writing code about 4-5 years ago for two reasons; Spent all day writing ASP & SQL for someone else. PC Techniques magazine went away. I've got a few programs in the shareware market that are solid performers but are in need of serious updating. I love Delphi or did when it was Borland (before Borland bought DBase and all the other crap), I'd like to salvage as much of my D5E code as possible but I doubt I can. I plan on upgrading to Delphi 2010. My next software release needs to interact with a database. I'm very proficient with MS Sql and like to put all of the database code in stored procedures. What is the best database choice that interacts well with Delphi, allows stored procedures and is so easy to deploy that even the Geico gecko could deploy it? 10/25/2009 18:53 PM EST Re-Opened After Reading Install Docs for Delphi 2010 I downloaded a trial version of Delphi 2010 and unzipped the install. I've been reading the install docs included in the package. I started with the install.htm inside the zip package. install.htm wisely tells you to see the following two articles: Installation Notes: http://edn.embarcadero.com/article/39754 Release Notes: http://edn.embarcadero.com/article/39758 the release notes state the following... MSSQL driver requires the installation of the SQL Native Client. SQL Native Client 2008 is required for dbxmss.dll. SQL Native Client 2005 is required for dbxmss9.dll I checked my machine to see if SQL Native Client is installed. Nope. I wasn't done reading the docs so I made a note to install SQL Native Client. I googled dbxmss.dll and dbxmss9.dll and found a very interesting thread on the Embarcadero forums. read thread here. After reading this thread and some careful thought I don't think I will be using Microsoft SQL Express. I can't rely on my customers having the right drivers installed. So, I'm back to looking for a different solution. If I'm selling a $40 product to the general masses I need to have a bulletproof solution that doesn't require my brand new customer to update their machine before my software will work.

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  • ASP.NET Grid AjaxPanel Download Issue

    - by Mahesh
    Hi, I have a telerik grid which is performing operations like searching,sorting,filtering etc. To make customers happy, we put this control in an ajax panel for seamless experience. Now, we added a new functionality to the grid where the customer can download the entire row information as a csv file. As the response is a file, ajax panel is trying to parse the output and throwing the following exception: Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters, HttpModules, or server trace is enabled. Details: Error parsing near '?'. Could you please help me in having both functionalities( Ajax and Download) in place without any error?? Thanks, Mahesh

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  • get local groups and not the primary groups for a domain user

    - by user175084
    i have a code to get the groups a user belongs to. try { DirectoryEntry adRoot = new DirectoryEntry(string.Format("WinNT://{0}", Environment.UserDomainName)); DirectoryEntry user = adRoot.Children.Find(completeUserName, "User"); object obGroups = user.Invoke("Groups"); foreach (object ob in (IEnumerable)obGroups) { // Create object for each group. DirectoryEntry obGpEntry = new DirectoryEntry(ob); listOfMyWindowsGroups.Add(obGpEntry.Name); } return true; } catch (Exception ex) { new GUIUtility().LogMessageToFile("Error in getting User MachineGroups = " + ex); return false; } the above code works fine when i have to find the groups of a local user but for a domain user it returns a value "Domain User" which is kind of wierd as it is a part of 2 local groups. Please can some1 help in solving this mystery. thanks Research I did some finding and got that i am being returned the primary group of the domain user called "Domain User" group but what i actually want is the groups of the local machines the domain user is a part of... i cannot get that.. any suggestions another code using LDAP string domain = Environment.UserDomainName; DirectoryEntry DE = new DirectoryEntry("LDAP://" + domain, null, null, AuthenticationTypes.Secure); DirectorySearcher search = new DirectorySearcher(); search.SearchRoot = DE; search.Filter = "(SAMAccountName=" + completeUserName + ")"; //Searches active directory for the login name search.PropertiesToLoad.Add("displayName"); // Once found, get a list of Groups try { SearchResult result = search.FindOne(); // Grab the records and assign them to result if (result != null) { DirectoryEntry theUser = result.GetDirectoryEntry(); theUser.RefreshCache(new string[] { "tokenGroups" }); foreach (byte[] resultBytes in theUser.Properties["tokenGroups"]) { System.Security.Principal.SecurityIdentifier mySID = new System.Security.Principal.SecurityIdentifier(resultBytes, 0); DirectorySearcher sidSearcher = new DirectorySearcher(); sidSearcher.SearchRoot = DE; sidSearcher.Filter = "(objectSid=" + mySID.Value + ")"; sidSearcher.PropertiesToLoad.Add("distinguishedName"); SearchResult sidResult = sidSearcher.FindOne(); if (sidResult != null) { listOfMyWindowsGroups.Add((string)sidResult.Properties["distinguishedName"][0]); } } } else { new GUIUtility().LogMessageToFile("no user found"); } return true; } catch (Exception ex) { new GUIUtility().LogMessageToFile("Error obtaining group names: " + ex.Message + " Please contact your administrator."); // If an error occurs report it to the user. return false; } this works too but i get the same result "Domain Users" . Please can some1 tell me how to get the local machine groups...????

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  • LINQ to read XML (C#)

    - by aximili
    I got this XML file <root> <level1 name="A"> <level2 name="A1" /> <level2 name="A2" /> </level1> <level1 name="B"> <level2 name="B1" /> <level2 name="B2" /> </level1> <level1 name="C" /> </root> Could someone give me a C# code using LINQ, the simplest way to print this result: (Note the extra space if it is a level2 node) A A1 A2 B B1 B2 C Currently I got this code XDocument xdoc = XDocument.Load("data.xml")); var lv1s = from lv1 in xdoc.Descendants("level1") select lv1.Attribute("name").Value; foreach (var lv1 in lv1s) { result.AppendLine(lv1); var lv2s = from lv2 in xdoc...??? } Thank you!

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  • NameClaimType in ClaimsIdentity from SAML

    - by object88
    I am attempting to understand the world of WIF in context of a WCF Data Service / REST / OData server. I have a hacked up version of SelfSTS that is running inside a unit test project. When the unit tests start, it kicks off a WCF service, which generates my SAML token. This is the SAML token being generated: <saml:Assertion MajorVersion="1" MinorVersion="1" ... > <saml:Conditions>...</saml:Conditions> <saml:AttributeStatement> <saml:Subject> <saml:NameIdentifier Format="EMAIL">4bd406bf-0cf0-4dc4-8e49-57336a479ad2</saml:NameIdentifier> <saml:SubjectConfirmation>...</saml:SubjectConfirmation> </saml:Subject> <saml:Attribute AttributeName="emailaddress" AttributeNamespace="http://schemas.xmlsoap.org/ws/2005/05/identity/claims"> <saml:AttributeValue>[email protected]</saml:AttributeValue> </saml:Attribute> <saml:Attribute AttributeName="name" AttributeNamespace="http://schemas.xmlsoap.org/ws/2005/05/identity/claims"> <saml:AttributeValue>bob</saml:AttributeValue> </saml:Attribute> </saml:AttributeStatement> <ds:Signature>...</ds:Signature> </saml:Assertion> (I know the Format of my NameIdentifier isn't really EMAIL, this is something I haven't gotten to cleaning up yet.) Inside my actual server, I put some code borrowed from Pablo Cabraro / Cibrax. This code seems to run A-OK, although I confess that I don't understand what's happening. I note that later in my code, when I need to check my identity, Thread.CurrentPrincipal.Identity is an instance of Microsoft.IdentityModel.Claims.ClaimsIdentity, which has a claim for all the attributes, plus a nameidentifier claim with the value in my NameIdentifier element in saml:Subject. It also has a property NameClaimType, which points to "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name". It would make more sense if NameClaimType mapped to nameidentifier, wouldn't it? How do I make that happen? Or am I expecting the wrong thing of the name claim? Thanks!

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  • Eclipse or Netbeans for Swing based application?

    - by Nazgulled
    Hi, My next university project is going to be Java based. We will have to develop this with Swing and I was wondering what's the common preference for that? A quick glimpse through Netbeans website and I could see a powerful Swing editor, or what it looks like one; since I never used it, I don't know. As for Eclipse, I'm sure there are plugins for Swing, but are they any good? How do they compare to Netbeans? The bottom line is, should I go with Netbeans or Eclipse for a Swing based project?

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  • iPhone UIWebView: loadData does not work with certain types (Excel, MSWord, PPT, RTF)

    - by Thomas Tempelmann
    My task is to display the supported document types on an iPhone with OS 3.x, such as .pdf, .rtf, .doc, .ppt, .png, .tiff etc. Now, I have stored these files only encrypted on disk. For security reasons, I want to avoid storing them unencrypted on disk. Hence, I prefer to use loadData:MIMEType:textEncodingName:baseURL: instead of loadRequest: to display the document because loadData allows me to pass the content in a NSData object, i.e. I can decrypt the file in memory and have no need to store it on disk, as it would be required when using loadRequest. The problem is that loadData does not appear to work with all file types: Testing shows that all picture types seem to work fine, as well as PDFs, while the more complex types don't. I get a errors such as: NSURLErrorDomain Code=100 NSURLErrorDomain Code=102 WebView appears to need a truly working URL for accessing the documents as a file, despite me offering all content via the NSData object already. Here's the code I use to display the content: [webView loadData:data MIMEType:type textEncodingName:@"utf-8" baseURL:nil]; The mime-type is properly set, e.g. to "application/msword" for .doc files. Does anyone know how I could get loadData to work with all types that loadRequest supports? Or, alternatively, is there some way I can tell which types do work for sure (i.e. officially sanctioned by Apple) with loadData? Then I can work twofold, creating a temp unencrypted file only for those cases that loadData won't like. Update Looks like I'm not the first one running into this. See here: http://osdir.com/ml/iPhoneSDKDevelopment/2010-03/msg00216.html So, I guess, that's the status quo, and nothing I can do about it. Someone suggested a work-around which might work, though: http://osdir.com/ml/iPhoneSDKDevelopment/2010-03/msg00219.html Basically, the idea is to provide a tiny http server that serves the file (from memory in my case), and then use loadRequest. This is probably a bit more memory-intensive, though, as both the server and the webview will probably both hold the entire contents in memory as two copies then, as opposed to using loadData, where both would rather share the same data object. (Mind you, I'll have to hold the decrypted data in memory, that's the whole point here).

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  • UITableView having one Cell with multiple UITextFields (some of them in one row) scrolling crazy

    - by Allisone
    I have a UITableView (grouped). In that tableview I have several UITableViewCells, some custom with nib, some default. One Cell (custom) with nib has several UITextfields for address information, thus also one row has zip-code and city in one row. When I get the keyboard the tableview size seems to be adjusted automatically (vs. another viewController in the app with just a scrollview where I had to code this functionality on my own) so that i can scroll to the bottom of my tableview (and see it) even though the keyboard is up. That's good. BUT when I click on a textfield the tableview gets either scrolled up, or down, I can't figure out the logic. It seems to be rather random up/down scrolling / contentOffset setting. So I have bound the Editing Did Begin events of the textfields to a function that has this code. - (IBAction)textFieldDidBeginEditing:(UITextField *)textField { CGPoint pt; CGRect rc = [textField bounds]; rc = [textField convertRect:rc toView:self.tableView]; pt = rc.origin; pt.x = 0; [self.tableView setContentOffset:pt animated:YES]; ... } This, well, it seems to work most of the time, BUT it doesn't work if I click the first textfield (the view jumps so that the second row gets to the top and the first row is out of the current visible view frame) AND it also doesn't work if I first select the zip textfield and next the city textfield (both in one row) or vice versa. If I do so, the tableview seems to jump to the (grouped tableview) top of my viewForHeaderInSection(this section with this mentioned cell with all my textfields) What is is going on ? Why is this happening ? How to fix this ? Edit This on the other hand behaves as expected (for the two Textviews wit same origin.y) if (self.tableView.contentOffset.y == pt.y) { pt.y = pt.y + 1; [self.tableView setContentOffset:pt animated:YES]; }else { [self.tableView setContentOffset:pt animated:YES]; } But this is a stupid solution. I wouldn't like to keep it that way. And this also doesn't fix the wrong jumping, when clicking the first textfield at first.

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  • PHP CMS with independent framework.

    - by Simon
    We currently use MySource Matrix CMS for large projects, Wordpress CMS for small projects and Zend Framework for bespoke applications... I'm not trying to confuse and compare a CMS to a framework, that has been done before :-) I want to identify a few CMSs for review that have foundations in strong (preferably independent) PHP frameworks. The only one I have looked at is SilverStripe CMS and Sapphire Framework. We have many clients that have a CMS for internet and/ or extranet and then various other bespoke applications that are then integrated via various means to look like they're in the CMS. I believe it will be more productive and beneficial to have a common framework between these branches so they can be natively merged. Hope this makes sense. PS. I have used custom assets in MySource Matrix and specific modules in other CMS but you feel you are working for the CMS not the application you are building.

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  • Python urllib2 Basic Auth Problem

    - by Simon
    I'm having a problem sending basic AUTH over urllib2. I took a look at this article, and followed the example. My code: passman = urllib2.HTTPPasswordMgrWithDefaultRealm() passman.add_password(None, "api.foursquare.com", username, password) urllib2.install_opener(urllib2.build_opener(urllib2.HTTPBasicAuthHandler(passman))) req = urllib2.Request("http://api.foursquare.com/v1/user") f = urllib2.urlopen(req) data = f.read() I'm seeing the following on the Wire via wireshark: GET /v1/user HTTP/1.1 Host: api.foursquare.com Connection: close Accept-Encoding: gzip User-Agent: Python-urllib/2.5 You can see the Authorization is not sent, vs. when I send a request via curl: curl -u user:password http://api.foursquare.com/v1/user GET /v1/user HTTP/1.1 Authorization: Basic =SNIP= User-Agent: curl/7.19.4 (universal-apple-darwin10.0) libcurl/7.19.4 OpenSSL/0.9.8k zlib/1.2.3 Host: api.foursquare.com Accept: */* For some reason my code seems to not send the authentication - anyone see what I'm missing? thanks -simon

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  • Having trouble with binding

    - by Tam
    I'm not sure if I'm misunderstanding the binding in Flex. I'm using Cairngorm framework. I have the following component with code like: [Bindable] var _model:LalModelLocator = LalModelLocator.getInstance(); .... <s:DataGroup dataProvider="{_model.friendsSearchResults}" includeIn="find" itemRenderer="com.lal.renderers.SingleFriendDisplayRenderer"> <s:layout> <s:TileLayout orientation="columns" requestedColumnCount="2" /> </s:layout> </s:DataGroup> in the model locator: [Bindable] public var friendsSearchResults:ArrayCollection = new ArrayCollection(); Inside the item renderer there is a button that calls a command and inside the command results there is a line like this: model.friendsSearchResults = friendsSearchResults; Putting break points and stepping through the code I confirmed that this like gets called and the friendsSearchResults gets updated. To my understanding if I update a bindable variable it should automatically re-render the s:DataGroup which has a dataProvider of that variable.

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  • Desigining problem in asp.net?

    - by Surya sasidhar
    hi, in my application i am displaying a image (image size is 90px width,90px height) and below that i displaying title of the image in data list control (horizontal display). i used table (tags) in source code. the image and title will display dynamically from database. my problem is when title is too long it is disturbing my design, when title is too long it should come down, the title should same size as the picture if it is too long it come down in second line. for example the below is a image and below that image title -------------- | | | | | | | | | | |_____________| surya sasidhar rao the above image title is too long. the letters "rao" should come in second line. -------------- | | | | | | | | | | |_____________| surya sasidhar rao this is the desing i want. how can i get it. this is my source code ' CommandName="Play" CommandArgument='<%#Eval("VideoName")+"|"+Eval("videoid")+","+Eval("username")%' Width ="90px" Height ="90px" / ' CommandName="title" CommandArgument='<%#Eval("VideoName")+"|"+Eval("videoid")+","+Eval("username")%' ' '

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  • Howto add a changed file to an older (not last) commit in Git

    - by David Klein
    Hey, I changed several things over the last hour and committed them step by step. But I just realized I've forgot to add a changed file some commits ago. The Log looks like this: GIT TidyUpRequests u:1 d:0> git log commit fc6734b6351f6c36a587dba6dbd9d5efa30c09ce Author: David Klein <> Date: Tue Apr 27 09:43:55 2010 +0200 The Main program now tests both Webservices at once commit 8a2c6014c2b035e37aebd310a6393a1ecb39f463 Author: David Klein <> Date: Tue Apr 27 09:43:27 2010 +0200 ISBNDBQueryHandler now uses the XPath functions from XPath.fs too commit 06a504e277fd98d97eed4dad22dfa5933d81451f Author: David Klein <> Date: Tue Apr 27 09:30:34 2010 +0200 AmazonQueryHandler now uses the XPath Helper functions defined in XPath.fs commit a0865e28be35a3011d0b6091819ec32922dd2dd8 <--- changed file should go here Author: David Klein <> Date: Tue Apr 27 09:29:53 2010 +0200 Factored out some common XPath Operations Any ideas? :)

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  • How to use Maven2 with Apache Sling?

    - by Jerome Baum
    Google doesn't help, neither does a stackoverflow.com search, and browsing through Apache Sling documentation doesn't show any solution so here goes: How can I best use Maven2 with Apache Sling? Basically as far as I see the entire application code will need to be placed in the JCR repository, but I need it versioned. There is some documentation about OSGi bundles that could contain resources, but isn't it kind of overkill to create a bundle with a bunch of Java code to talk to Sling when all I want to do is load some files to corresponding URLs? What I was hoping for is something like jetty:run that will automatically deploy a WAR into a new Jetty instance. Ideally the goal for Sling would run Sling and then load the specified content -- is there some Maven2 plugin for this right now? Or is the bundle-based solution the "canonical" way of doing this?

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  • C# threads - Posting messages between threads

    - by Harsha
    Hi All, I am working on a project which involves reusing as well as migrating some of the existing MFC code to C#. The current code in MFC, creates some threads and uses ::PostthreadeMessage() and ON_THREAD_MESSAGE(msg,func) for inter thread asynchronous communication through messages. ::PostthreadeMessage() - sends a message to a particular thread id. ON_THREAD_MESSAGE(msg,func) - calls the function(func) when a message(msg) is received. Since i am not much aware of the threading interfaces in C#, i tried to search for similar API's in C#, but was not able to find any. It would be great, if somebody can help me in finding the appropriate functions for this purpose in C# Thanks, Harsha

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  • cannot evaluate expression because a native frame is on top of the call stack and system.accessviolationexception

    - by Joseph
    I have this code using c#. public partial class MainForm : Form { private CvCapture VideoCapture; private IplImage frame; private IplImage imgMain; public MainForm() { InitializeComponent(); } private void btnVideo_Click(object sender, EventArgs e) { double vidWidth, vidHeight; try { VideoCapture = highgui.CvCreateCameraCapture(0); } catch (Exception except) { MessageBox.Show(except.Message); } if (btnVideo.Text.CompareTo("Start Video") == 0) { if (VideoCapture.ptr == IntPtr.Zero) { MessageBox.Show("badtrip ah!!!"); return; } btnVideo.Text = "Stop Video"; highgui.CvSetCaptureProperty(ref VideoCapture, highgui.CV_CAP_PROP_FRAME_WIDTH, 640); highgui.CvSetCaptureProperty(ref VideoCapture, highgui.CV_CAP_PROP_FRAME_HEIGHT, 480); highgui.CvQueryFrame(ref VideoCapture); vidWidth = highgui.cvGetCaptureProperty(VideoCapture, highgui.CV_CAP_PROP_FRAME_WIDTH); vidHeight = highgui.cvGetCaptureProperty(VideoCapture, highgui.CV_CAP_PROP_FRAME_HEIGHT); picBoxMain.Width = (int)vidWidth; picBoxMain.Height = (int)vidHeight; timerGrab.Enabled = true; timerGrab.Interval = 42; timerGrab.Start(); } else { btnVideo.Text = "Start Video"; timerGrab.Enabled = false; if (VideoCapture.ptr == IntPtr.Zero) { highgui.CvReleaseCapture(ref VideoCapture); VideoCapture.ptr = IntPtr.Zero; } } } private void timerGrab_Tick(object sender, EventArgs e) { try { frame = highgui.CvQueryFrame(ref VideoCapture); if (frame.ptr == IntPtr.Zero) { timerGrab.Stop(); MessageBox.Show("??"); return; } imgMain = cxcore.CvCreateImage(cxcore.CvGetSize(ref frame), 8, 3); picBoxMain.Image = highgui.ToBitmap(imgMain, false); cxcore.CvReleaseImage(ref imgMain); //cxcore.CvReleaseImage(ref frame); } catch (Exception excpt) { MessageBox.Show(excpt.Message); } } } The problem is after i break all and step through the debugger the program stops at a certain code. the code where it stops is here: frame = highgui.CvQueryFrame(ref VideoCapture); the error is that it says that cannot evaluate expression because a native frame is on top of the call stack. and then when i try to shift+F11 it. there is another error saying that system.accessviolationexception. the stack trace says that: at System.Runtime.InteropServices.Marshal.CopyToManaged(IntPtr source, Object destination, Int32 startIndex, Int32 length) at CxCore.IplImage.get_ImageDataDb()

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