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  • Simulink: type consistency errors

    - by stanigator
    Using this Simulink model file as a reference, I'm trying to figure out the two following errors: I have no idea what has gone wrong with the data type consistency/conversion problems. Do you know what the error messages mean exactly in the context of a model? It would be great to get an interpretation of the problem to solve it. Thanks in advance.

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  • How to implement Object Databases in Asp.net MVC(c#)

    - by amexn
    I started my project in Asp.net MVC(c#) & MSSQL 2005.I want to implement Object Databases in my project. While searched in google i found "MongoDb" I didn't have enough knowledge in Object Databases & which one best suited for MSSQL 2005. Please suggest a good example/reference regarding Object Databases implementation in Asp.net MVC application

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  • Need to call COM component using reflections in C#.NET

    - by Usman
    Hello, I need to determin the COM component(unmanaged code) type and invoke the exposed interface's methods using reflection in C#.NET at runtime. 1 -- First What member of "Type" tells that type is COM component and we can take CLSID at runtime? Is Type.COMObject? 2 -- I need to call methods of exposed interfaces as they called in unmanaged code using CoCreateInstance by passing CLSID and REFID ... I am using InvokeMember but it returns null or 0 as out parameter. How to pass out parameter in this case.? Is there any need to pass out parameter? As all my COM unamanged code suppose to take las parameter as an OUT parameter and after executing it puts the result into that out param. But I've converted all my unmanged COM code to .NET managed assemblies using tlbimp.exe. Regards Usman

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  • hibernate or eclipselink?

    - by opensas
    It seems like EclipseLink has been chosen by sun as the reference implementation of JPA 2.0, nevertheless I see lots of people continue to use hibernate... I have no experience with none of them, so I wonder which one should I choose for a new project... I'd like to know the pros / cons of each one... thanks a lot ps: btw, and this is part of the answer, there are 3636 questions on stackoverflow about hibernate, and only 68 about eclipselink...

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  • c++ FFT Beat detection library?

    - by mokaschitta
    Hi, I am currently looking around for a good allround beat detection library / source code in C++ since I found it really hard to achieve satisfying results with the beat detection code I wrote myself using this tutorial: http://www.gamedev.net/reference/programming/features/beatdetection/ It's especially really hard if you want to make it work with any kind of music so I was wondering if there is something usable out there allready? Thanks!

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  • Add a "mapview" in a webOS app

    - by thom
    Hi, I'm not familiar yet with WebOS dev (just started this weekend) but I didn't find any "MapView" widget in the reference library. Is there any way to include a WebView in my app or do I have to start the map app from my app ? Thanx.

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  • A good web 'desktop' JavaScript, CSS, or both, library that likes ASP.NET Web Forms

    - by ProfK
    I've come across, in passing, several suites of functions, widgets, frameworks, etc. that seek to produce a desktop like experience on the web. Most are JavaScript and CSS tools that handle web content on an emulation of the desktop-paradigmed UI, e.g. TreeView + Content == Explorer. Is there such a library nicely compatible with ASP.NET Forms without weeks of grief? I'll also settle for something similar, but instead of native ASP.NET, a library for any of the open source CMS products for ASP.NET. (Umbraco is at the top of my list, followed by mojoPortal. I aspire to the level of coding their creators easily demonstrate in the product. [PS, I don't want a 'desktop' ux per se, just light and simple dynamic layout for drag 'n drop, dock windows, a dock bar?.. and other fancy magic.

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  • Hibernate Collection chaining

    - by Anantha Kumaran
    I have two Entities University courses Course students i want to access all the students in a university. I tried the following query select u.courses.students from university u i got the following exception. org.hibernate.QueryException: illegal attempt to dereference collection [university0_.id.courses] with element property reference [students] [ select u.courses.students from com.socialsite.persistence.University u ] at org.hibernate.hql.ast.tree.DotNode$1.buildIllegalCollectionDereferenceException(DotNode.java:46) ..... can anyone explain what is wrong with this?

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  • PHP5 vs ASP.NET

    - by Lee
    Hi guys, I am required to write a report contrasting PHP5 and ASP.NET after building an application in both languages. I've been looking for papers and resources to reference and quote on the subject but i am running a little short. I was wondering if anyone directions as where i could find such papers / resources. Thanks in advance.

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  • Build and render infinite hierarchical category tree from self-referential category table

    - by FreshCode
    I have a Categories table in which each category has a ParentId that can refer to any other category's CategoryId that I want to display as multi-level HTML list, like so: <ul class="tree"> <li>Parent Category <ul> <li>1st Child Category <!-- more sub-categories --> </li> <li>2nd Child Category <!-- more sub-categories --> </li> </ul> </li> </ul> Presently I am recursively rendering a partial view and passing down the next category. It works great, but it's wrong because I'm executing queries in a view. How can I render the list into a tree object and cache it for quick display every time I need a list of all hierarchical categories?

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  • Silverlight Listbox firing MouseRightButtonDown, but not MouseLeftButtonDown

    - by Steav
    I have this problem in a bigger Project...... so I set up a 'Testpoject' as Proof of Concept: New Silverlight-Application Add Listbox Fill listbox with a few Checkboxes Register listBox1_MouseLeftButtonDown register listBox1_MouseRightButtonDown You will see, that the listBox1_MouseLeftButtonDown won't fire under any circumstances.... listBox1_MouseRightButtonDown however fires just fine. I tried using a custom Class deriving from ListBox and overriding, assuming something in the ListBox Class was setting e.Handled = false, but this did not change the behaviour, either. Any Ideas on why this happens and how to fix? (This problem also stops the 'parent'-control from receiving the Click-Event... so the Event-passing is broke)

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  • Load PDF from Memory ASP.Net

    - by Sandhurst
    I am using ITextSharp to generate pdf on the fly and then saving it to disk and display it using Frame. The Frame has an attribute called src where I pass the generated file name. This all is working fine what I want to achieve is passing the generated pdf file to Frame without saving it to disk. HtmlToPdfBuilder builder = new HtmlToPdfBuilder(PageSize.LETTER); HtmlPdfPage first = builder.AddPage(); //import an entire sheet builder.ImportStylesheet(Request.PhysicalApplicationPath + "CSS\\Stylesheet.css"); string coupon = CreateCoupon(); first.AppendHtml(coupon); byte[] file = builder.RenderPdf(); File.WriteAllBytes(Request.PhysicalApplicationPath+"final.pdf", file); printable.Attributes["src"] = "final.pdf";

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  • ASP.NET MVC 2 validation using DTOs instead of domain entities

    - by Kevin Pang
    I'm struggling to mesh two best practices together: Using DataAnnotations + ModelBinding for validation in ASP.NET MVC 2 Using DTOs instead of domain entities when passing data via the ViewModel If I want to pass over DTOs instead of domain entities, then leveraging DataAnnotations + ModelBinding for validation would require me to specify validation attributes on my DTO classes. This results in a lot of duplicated work since multiple DTOs may hold overlapping fields with the same validation restrictions. This means that any time I change a validation rule in my domain, I have to go find all DTOs that correspond with that value and update their validation attributes.

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  • Seeking for faster $.(':data(key)')

    - by PoltoS
    I'm writing an extension to jQuery that adds data to DOM elements using el.data('lalala', my_data); and then uses that data to upload elements dynamically. Each time I get new data from the server I need to update all elements having el.data('lalala') != null; To get all needed elements I use an extension by James Padolsey: $(':data(lalala)').each(...); Everything was great until I came to the situation where I need to run that code 50 times - it is very slow! It takes about 8 seconds to execute on my page with 3640 DOM elements var x, t = (new Date).getTime(); for (n=0; n < 50; n++) { jQuery(':data(lalala)').each(function() { x++; }); }; console.log(((new Date).getTime()-t)/1000); Since I don't need RegExp as parameter of :data selector I've tried to replace this by var x, t = (new Date).getTime(); for (n=0; n < 50; n++) { jQuery('*').each(function() { if ($(this).data('lalala')) x++; }); }; console.log(((new Date).getTime()-t)/1000); This code is faster (5 sec), but I want get more. Q Are there any faster way to get all elements with this data key? In fact, I can keep an array with all elements I need, since I execute .data('key') in my module. Checking 100 elements having the desired .data('lalala') is better then checking 3640 :) So the solution would be like for (i in elements) { el = elements[i]; .... But sometimes elements are removed from the page (using jQuery .remove()). Both solutions described above [$(':data(lalala)') solution and if ($(this).data('lalala'))] will skip removed items (as I need), while the solution with array will still point to removed element (in fact, the element would not be really deleted - it will only be deleted from the DOM tree - because my array will still have a reference). I found that .remove() also removes data from the node, so my solution will change into var toRemove = []; for (vari in elements) { var el = elements[i]; if ($(el).data('lalala')) .... else toRemove.push(i); }; for (var ii in toRemove) elements.splice(toRemove[ii], 1); // remove element from array This solution is 100 times faster! Q Will the garbage collector release memory taken by DOM elements when deleted from that array? Remember, elements have been referenced by DOM tree, we made a new reference in our array, then removed with .remove() and then removed from the array. Is there a better way to do this?

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  • Setting The Wallpaper On An IPad

    - by Anirudh
    I think there is no way to set the lock screen wallpaper on the iPhone programmatically (with ref to this question), but with the 3.2 SDK and the ability to set the wallpaper on the home screen on the iPad, does the SDK allow this to be done via APIs now? I looked up the developer reference, but i could not find anything useful.

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  • How to add pdfsharp lib in C#

    - by Royson
    i am new to C#.net,i had downloaded pdfsharp lib. but how to add those lib in our project. My project is create a pdf file.Plz provide me step/step instruction. After unziping it has 32 folders. i tried by coping it in my pro folder. but same error come. "The type or namespace name 'PdfSharp' could not be found (are you missing a using directive or an assembly reference?)"

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  • Issit possible to load a UIVIewcontroller from uiview of another UIViewController

    - by chako89
    Guys, need your advise here. I have: an UIViewController A UIView B: I added subview which is a UIView to the UIViewController A an UIViewController C What I did is: in UIViewController A's viewDidLoad's method, I call this: UIView *subviewB = [[Subview alloc] initWithFrame:CGRectMake(0, 0, 1024, 768)]; [subviewB subviewBMethod]; // [self.view addSubview:rsubviewB]; SubviewBMethod code is to create an view, inside this view have a button. Once this button is clicked, it will change to UIViewController C. I tried this: [self presentModalViewController:self.UIViewControllerC animated:YES]; And I got this error message: warning: incompatible Objective-C types 'struct UIViewControllerC *', expected 'struct UIViewController *' when passing argument 1 of 'presentModalViewController:animated:' from distinct Objective-C type When I run the app, it terminates immediately when I click the button, I opened the console bug, there is no any error message. My method must be wrong, thus my question is: Issit possible to load a UIVIewcontroller from uiview of another UIViewController? If: Yes: How to do it? No: What should I do? THank you =)

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  • how to add a new item to ebay using ebay API

    - by From.ME.to.YOU
    Hello i want to add an item to ebay using ebay API and PHP i read their website for hours and i'm lost. i created a developer account. but what should i do after that? i read about "Add item" call http://developer.ebay.com/DevZone/XML/docs/Reference/eBay/AddItem.html but i have no idea on how to use that? Please help !!

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  • Why gcc4 warn and how to avoid it

    - by vitaly.v.ch
    I have a function declared as: void event_add_card (EventAddr addr, EventType type, unsigned char card); and union typedef union EventData { float money; /**< money info */ unsigned char card; /**< new card */ } EventData; When i compile following code: EventData data = {}; event_add_card (0,0, data.card); with enabled warning -Wconversion I receive following warning: player-stud.c|71| warning: passing argument 3 of 'event_add_card' with different width due to prototype Why gcc4 unsuccessful and how to fix It???

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  • OpenCV: How to copy CvSeq data into CvMat?

    - by Can Bal
    I have a CvSeq structure at hand, which is the output of an available OpenCV function. This holds 128 bytes of data in each of the sequence elements. I want to copy each of these 128-byte elements into rows of a CvMat structure to form a N-by-128 of type CV_32FC1. What would be the most efficient way to do this? I thought of using memcpy but I couldn't come up with a working solution. For the details, I want to calculate the SURF features in an image by cvExtractSURF() function, and copy the SURF descriptors into a matrix for passing it to the cvKMeans2().

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  • MessageBox doesn't show on mdi form after a long calculation

    - by Rekreativc
    Hello This is a very similar problem to This one, sadly that one was never answered either. I have a MDI Main forum that hosts several children forms. One of them does a long calculation and throws an exception if an error occurs (all work is done on the same thread). I then try to inform the user of an error with an messagebox, however it doesn't appear (but steals focus from the MDI Main, so the application is completely unresponsive). The beheviour changes slightly if I call Application.DoEvents() (evil I know, but this is a last resort thing). Then the forms remain completely active and the messagebox only appears after I change active application (Alt+Tab) to something else and then back again. What can I do to make sure the messagebox will be visible? I have already tried passing both, active child and MDI Main as parameter to the MessageBox.Show method. It doesn't change the behaviour.

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  • How do you handle the fetchxml result data?

    - by Luke Baulch
    I have avoided working with fetchxml as I have been unsure the best way to handle the result data after calling crmService.Fetch(fetchXml). In a couple of situations, I have used an XDocument with LINQ to retrieve the data from this data structure, such as: XDocument resultset = XDocument.Parse(_service.Fetch(fetchXml)); if (resultset.Root == null || !resultset.Root.Elements("result").Any()) { return; } foreach (var displayItem in resultset.Root.Elements("result").Select(item => item.Element(displayAttributeName)).Distinct()) { if (displayItem!= null && displayItem.Value != null) { dropDownList.Items.Add(displayItem.Value); } } What is the best way to handle fetchxml result data, so that it can be easily used. Applications such as passing these records into an ASP.NET datagrid would be quite useful.

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  • Load external image inside flash movie clip

    - by PepeSanchez
    I have a flash movie clip and need to load an external image inside the clip that reference to an external URL.. like www.myimage.com/image.jpg i did something with XML but the image persist on every clip because it loads from actionscript using the x and y cords. Help needed! Thanks!

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