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• Should a model binder populate all of the model?

  - by Richard

  Should a model binder populate all of the model, or only the bits that are being posted? For example, I am adding a product in my system and on the form i want the user to select which sites the new product will appear on. Therefore, in my model I want to populate a collection called "AllAvailableSites" to render the checkboxes for the user to choose from. I also need to populate the model with any chosen sites on a post in case the form does not validate, and I need to represent the form showing the initial selections. It would seem that I should let the model binder set the chosen sites on the model, and (once in the controller method) I set the "AllAvailableSites" on the model. Does that sound right? It seems more efficient to set everything in the model binder but someone is suggesting it is not quite right. I am grateful for any advice; I have to say that all the MVC model binding help online seems to cite really simple examples, nothing complicated. Do I really need a GET and a POST version of a method? Can't they just take the same view model? Then I check in my model binder if it is a GET/POST, and populate all the model accordingly.

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• Essential Tools for the WPF Novice

  When Michael sets out to do something, there are no half-measures; So when he set out to learn WPF, we all stand to benefit from the thorough research that he put into the task. He wondered what utility applications could assist programming in WPF. Here are the fruits of all his work.

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• When to use Constants vs. Config Files to maintain Configuration

  - by CoffeeAddict

  I often fight with myself on whether to put certain keys in my web.config or in a Constants.cs class or something like this. For example if I wanted to store application specific keys for whatever the case may be..I could store it and grab it from my web config via custom keys or consume it by referencing a constant in my constants class. When would you want to use Constants over config keys? This question really applies to any language I think.

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• Translate extrinsic rotations to intrinsic rotations ( Euler angles )

  - by MineMan287

  The problem I have is very frustrating: I am using the Jitter Physics library which gives Quaternion rotations, you can extract the extrinsic rotations but I need intrinsic rotations to rotate in OpenTK (There are other reasons as well so I don't want to make OpenTK use a Matrix) GL.Rotate(xr, 1, 0, 0) GL.Rotate(yr, 0, 1, 0) GL.Rotate(zr, 0, 0, 1) EDIT : Response to the first answer Like This? GL.Rotate(zr, 0, 0, 1) GL.Rotate(yr, 0, 1, 0) GL.Rotate(xr, 1, 0, 0) Or This? GL.Rotate(xr, 1, 0, 0) GL.Rotate(yr, 0, 1, 0) GL.Rotate(zr, 0, 0, 1) GL.Rotate(zr, 0, 0, 1) GL.Rotate(yr, 0, 1, 0) GL.Rotate(xr, 1, 0, 0) GL.Rotate(xr, 1, 0, 0) GL.Rotate(yr, 0, 1, 0) GL.Rotate(zr, 0, 0, 1) I'm confused, please give an example

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• C# CF: How to open specific file extension with my program

  - by nuttynibbles

  Hi, Im developing a mobile application in dot net Compact framework. I managed to edit the registry HKEY_CLASSES_ROOT so that a click on file with .xyz extension will open my application. basically, i need to do some operation on this file when it's clicked. however, i realise that if i do that the first time, it reaches program.cs at static void Main. but when the program is running and i click on the file with .xyz extension again, it doesnt loads the program static void Main. i tried setting breakpoints at the form that is currently running but still nothing. so where does it go to? how can i detect file .xyz is clicked and do something??

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• How do I echo the number of items in an array?

  - by Joel

  A total newbie question I know. I'm sing Zend framework, and sending an array from the controller: $this->view->googleArray = $viewFeedArray; In the view, I have a foreach loop that is populating a table with the array contents. <?php foreach($this->googleArray as $row) { ?> <tr> <td><?php echo $row['when']; ?></td> ... ... </tr> <?php } ?> It all works fine. At the top of the table, I want to list the number of items in the array. Something like (which doesn't work): <?php echo $this->googleArray->totalResults; ?> event(s) found How would I do that? Thanks!

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• Is there a general concrete implementation of a KeyedCollection?

  - by CodeSavvyGeek

  The System.Collections.ObjectModel.KeyedCollection class is a very useful alternative to System.Collections.Generic.Dictionary, especially when the key data is part of the object being stored or you want to be able to enumerate the items in order. Unfortunately, the class is abstract, and I am unable to find a general concrete implementation in the core .NET framework. The Framework Design Guidlines book indicates that a concrete implementation should be provided for abstract types (section 4.4 Abstract Class Design). Why would the framework designers leave out a general concrete implementation of such a useful class, especially when it could be provided by simply exposing a constructor that accepts and stores a Converter from the item to its key: public class ConcreteKeyedCollection : KeyedCollection { private Converter getKeyForItem = null; public GenericKeyedCollection(Converter getKeyForItem) { if (getKeyForItem == null) { throw new ArgumentNullException("getKeyForItem"); } this.getKeyForItem = getKeyForItem; } protected override TKey GetKeyForItem(TItem item) { return this.getKeyForItem(item); } }

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• Where can I report an issue with IIS?

  - by Nathan Taylor

  While working with an ASP.NET application on Chrome for Android I discovered that Request.Browser.Cookies returns False for that browser (despite the browser supporting cookies). Based on what I've read, this indicates a problem with the database which ASP.NET (and, I assume, IIS) uses to look up information about different UserAgents. The fact that it returns False means that the database is either missing Chrome for Android, or has invalid data for it. What is the a proper place to report IIS issues like this?

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• Usage of repository between EF model and code consumer

  - by jim

  I have binary data in my database that I'll have to convert to bitmap at some point. I was thinking whether or not it's appropriate to use a repository and do it there. My consumer, which is a presentation layer, will use this repository. For example: // This is a class I created for modeling the item as is. public class RealItem { public string Name { get; set; } public Bitmap Image { get; set; } } public abstract class BaseRepository { //using Unity (http://unity.codeplex.com) to inject the dependancy of entity context. [Dependency] public Context { get; set; } } public calss ItemRepository : BaseRepository { public List<Items> Select() { IEnumerable<Items> items = from item in Context.Items select item; List<RealItem> lst = new List<RealItem>(); foreach(itm in items) { MemoryStream stream = new MemoryStream(itm.Image); Bitmap image = (Bitmap)Image.FromStream(stream); RealItem ritem = new RealItem{ Name=item.Name, Image=image }; lst.Add(ritem); } return lst; } } Is this a correct way to use the repository pattern? I'm learning this pattern and I've seen a lot of examples online that are using a repository but when I looked at their source code... for example: public IQueryable<object> Select { return from q in base.Context select q; } as you can see no behavior is added to the system by their approach, so I was confused that maybe repository is something else and I got it all wrong. At the end there should be extra benifits of using them right?

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• Restful WebAPI VS Regular Controllers

  - by Rohan Büchner

  I'm doing some R&D on what seems like a very confusing topic, I've also read quite a few of the other SO questions, but I feel my question might be unique enough to warrant me asking. We've never developed an app using pure WebAPI. We're trying to write a SPA style app, where the back end is fully decoupled from the front end code Assuming our service does not know anything about who is accessing/consuming it: WebAPI seems like the logical route to serve data, as opposed to using the standard MVC controllers, and serving our data via an action result and converting it to JSON. This to me at least seems like an MC design... which seems odd, and not what MVC was meant for. (look mom... no view) What would be considered normal convention in terms of performing action(y) calls? My sense is that my understanding of WebAPI is incorrect. The way I perceive WebAPI, is that its meant to be used in a CRUD sense, but what if I want to do something like: "InitialiseMonthEndPayment".... Would I need to create a WebAPI controller, called InitialiseMonthEndPaymentController, and then perform a POST... Seems a bit weird, as opposed to a MVC controller where i can just add a new action on the MonthEnd controller called InitialisePayment. Or does this require a mindset shift in terms of design? Any further links on this topic will be really useful, as my fear is we implement something that might be weird an could turn into a coding/maintenance concern later on?

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• How to implement following with Zend navigation?

  - by simple

  I have a top navigation and a side one Home | Tours | Booking Tour1 ------ Tour2 ------ Tour3 I show the side menu depending on a active top item. But sometimes when the side menu item is clicked I have to show that items children instead of the sidemenu. When no children exist I just show Children of a top menu depending on the active item. I an really having difficulties implementing that kind a logic and any help would be appreciated. //Comment button is not working so I will add comments here After stumbling the zend navigation view helpers, I am coming to the point - Understanding the concept of how in zend V part of MVC is implemented can save someone who is new to the framework many hours. As said in the answer to this question - "Use what is available", thought first we have to know where to find what is already available out there - that is where comes handy to take a look at the concept of helpers and so forth.

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• Creuna Platform

  - by csharp-source.net

  Creuna Platform is a an open source web application framework based on Microsoft .NET and is fully written in C#. The aim for Creuna Platform is to make life easier for system developers by providing a highly competent component toolkit that increases the productivity and quality of a system. The framework contains components for data access, configuration handling, messaging and a broad range of utility classes, controls and services. The framework also has several components for the EPiServer CMS. Creuna Platform is licensed under Affero GNU General Public License Version 3.

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• Setting up Windows Azure PowerShell

  - by Sahil Malik

  SharePoint, WCF and Azure Trainings: more information Azure is in the cloud, PowerShell is on my machine, between the two lie vast oceans and dragons. What is a developer to do, to use PowerShell to work with Azure? Here is what you do, Install Windows Azure PowerShell Start WebPI, search for “Windows Azure PowerShell” – choose to add and install it. Run Windows Azure PowerShell This is easy, click on start (or whatever the hell you do in Windows 2012), and search for Windows Azure PowerShell. Connect your subscription  Read full article ....

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• Entity Fremework serialization

  - by Alexandr

  Hello guys! I was confused with my problem. I'm using Entity Framework and want to save entities on hard disk and then to restore them. I have no problem with Serializing/Deserializing but i get an exception "The object cannot be added to the ObjectStateManager because it already has an EntityKey. Use ObjectContext.Attach to attach an object that has an existing key" when i try to add deserialized object to my datacontext. And nothing happens when i just Attach my entity to datacontext How to achieve my goal? Thx in advance! -Alexandr-

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• What tools are available to generate end user documentation?

  - by Rowland Shaw

  End user documentation on how to use applications is an important part of the user experience of applications, irrespective of whether they are winforms, wpf or even asp applications. In a startup or internal development team situation, where there isn't a dedicated documentation department, it can take a lot of resources to maintain screen shots and associated user documentation, such as on-line help or even printable manuals. What tools are available to assist in creating screenshots of all the "screens" within an application (be they winforms, wpf or aspx) to help automate the capture of screen shots, and associating with the relevant documentation? In addiiton, are there any that allow automation of annotations of a particular control (so use cases like: Draw a red box around the Username control with a callout to say "This is where you'd enter your user name, in the form '[email protected]'")?

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• Protect and Improve your Software with SmartAssembly 5

  - by Bart Read

  SmartAssembly 5 has been released. You can download a 14-day fully-functional free trial from: http://www.red-gate.com/products/smartassembly/index.htm This is the first major release since Red Gate acquired the tool last year, and our focus has mainly been on improving the quality of an already great tool. We've also simplified the licensing model so that there are now only three editions: Standard - bullet-proof protection at a bargain price, Pro - includes the SDK & custom web server...(read more)

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• How to keep history of record updates in MySQL?

  - by Proxium

  I have to create a code in PHP that will allow me to keep the history of record updates in MySQL database so I can find by date an old revision. Here is the example of what I actualy want to achive: http://en.wikipedia.org/w/index.php?title=Tunisia&action=history The data are mostly Numbers that we record about the company for generating reports and to extract indices. I plan to use codeigniter for it's simplicity and I'm looking for idea about a framework or an opensource project that use the same approche to keep history of modifications in the database.

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• How to host a site in another site - with little or no coding

  - by tunmise fasipe

  SUMMARY: All of these happens on Site A User visits site A User enter username and password User click on Login Button User authenticated on Site B behind the scene User is shown a page on Site A that contains his/her profile from Site B as layout/styled from Site B User can click links in the Profile page that links to other area in Site B Meaning: Session has to be maintained somehow I have web application where I store users' password and username. If you logon to this site, you can login with the password and username to have access to your profile. There is another option that requires you to login to my site from your site and have your profile displayed within your site. This is because you might already have a site that your clients know you with. This link is close to what I want to do: http://aspmessageboard.com/showthread.php?t=235069 A user on Site A login to Site B and have the information on site B showing in site A. He should not know whether Site B exists. It should be as if everything is happening in Site A This latter part is what I don't know to implement. I have these ideas: Have a fixed IFrame within your site to contain my site: but I am concerned about size/layout since different clients have different layout/size for their content section. I am thinking of how to maintain session too A webservice: I don't know how feasible this is since the Password and ID are on my server. You may have to send them back and forth. It means client would have to code with my API. But I am not just returning data, I have to show them a page that contains the profile details OpenID, Single-SignOn: Just guessing - but the authentication and data resides on my server. there is nothing to access on your side in this case Examples: like login into facebook within my site and still be able to do post updates, receive notifications Facebook implement some of these with IFrame e.g. the Like button *NOTE: * I have tested the IFrame option. It worked but I still have to remove my site specific content like my page Banner, Side Navigation etc. I was able to login normally as if I was actually on the site. This show my GUI but - style sheet was missing - content not styled with CSS - Any relative url won't work. It would look for that resource relative to the current server. Unless I change links to absolute - Clicking on the LogIn button produces this error: The state information is invalid for this page and might be corrupted. UPDATE: I was reading about REST webservice few days ago and I got this idea: What about the idea of returning an XML from a webservice [REST or SOAP] and providing an XSLT (that I can provide) to display it. Thus they won't have to do much coding?

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• Collection RemoveAll Extension Method

  - by João Angelo

  I had previously posted a RemoveAll extension method for the Dictionary<K,V> class, now it’s time to have one for the Collection<T> class. The signature is the same as in the corresponding method already available in List<T> and the implementation relies on the RemoveAt method to perform the actual removal of each element. Finally, here’s the code: public static class CollectionExtensions { /// <summary> /// Removes from the target collection all elements that match the specified predicate. /// </summary> /// <typeparam name="T">The type of elements in the target collection.</typeparam> /// <param name="collection">The target collection.</param> /// <param name="match">The predicate used to match elements.</param> /// <exception cref="ArgumentNullException"> /// The target collection is a null reference. /// <br />-or-<br /> /// The match predicate is a null reference. /// </exception> /// <returns>Returns the number of elements removed.</returns> public static int RemoveAll<T>(this Collection<T> collection, Predicate<T> match) { if (collection == null) throw new ArgumentNullException("collection"); if (match == null) throw new ArgumentNullException("match"); int count = 0; for (int i = collection.Count - 1; i >= 0; i--) { if (match(collection[i])) { collection.RemoveAt(i); count++; } } return count; } }

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• How can I create a web based administration interface.

  - by The HCD

  Hi all, I'm planning to create a simple web based interface that stores administration input in json format (for use later by an applicaiton running on the same host) example json output is here: http://www.json.org/example.html The content would be user contacts (email, name, phone number, photo etc..) There would need to be a conf file per logged in user. and an administrator user for viewing all config files in his group. I'm wondering what technology is best to create this framework. I could do it via servlets etc.. however, there may be something simpler.. Thanks to all for your replies in advance.

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• Small app structure review

  - by Lorenzo

  Hi, I would be grateful if someone could review following: I have a main Form app. OnLoad it displays with Docstyle=Fill the main menu which is done by user control. If the user selects a choice in that Menu control, it fires an event (with one parameter Choice) which main forms reacts on. If the choice is run the app, it closes the user control (dipose) and call method starting the app. If the choice is to quit, it calls Application.Exit. Is that alright form programmers point of view?

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• Protecting Cookies: Once and For All

  - by Your DisplayName here!

  Every once in a while you run into a situation where you need to temporarily store data for a user in a web app. You typically have two options here – either store server-side or put the data into a cookie (if size permits). When you need web farm compatibility in addition – things become a little bit more complicated because the data needs to be available on all nodes. In my case I went for a cookie – but I had some requirements Cookie must be protected from eavesdropping (sent only over SSL) and client script Cookie must be encrypted and signed to be protected from tampering with Cookie might become bigger than 4KB – some sort of overflow mechanism would be nice I really didn’t want to implement another cookie protection mechanism – this feels wrong and btw can go wrong as well. WIF to the rescue. The session management feature already implements the above requirements but is built around de/serializing IClaimsPrincipals into cookies and back. But if you go one level deeper you will find the CookieHandler and CookieTransform classes which contain all the needed functionality. public class ProtectedCookie {     private List<CookieTransform> _transforms;     private ChunkedCookieHandler _handler = new ChunkedCookieHandler();     // DPAPI protection (single server)     public ProtectedCookie()     {         _transforms = new List<CookieTransform>             {                 new DeflateCookieTransform(),                 new ProtectedDataCookieTransform()             };     }     // RSA protection (load balanced)     public ProtectedCookie(X509Certificate2 protectionCertificate)     {         _transforms = new List<CookieTransform>             {                 new DeflateCookieTransform(),                 new RsaSignatureCookieTransform(protectionCertificate),                 new RsaEncryptionCookieTransform(protectionCertificate)             };     }     // custom transform pipeline     public ProtectedCookie(List<CookieTransform> transforms)     {         _transforms = transforms;     }     public void Write(string name, string value, DateTime expirationTime)     {         byte[] encodedBytes = EncodeCookieValue(value);         _handler.Write(encodedBytes, name, expirationTime);     }     public void Write(string name, string value, DateTime expirationTime, string domain, string path)     {         byte[] encodedBytes = EncodeCookieValue(value);         _handler.Write(encodedBytes, name, path, domain, expirationTime, true, true, HttpContext.Current);     }     public string Read(string name)     {         var bytes = _handler.Read(name);         if (bytes == null || bytes.Length == 0)         {             return null;         }         return DecodeCookieValue(bytes);     }     public void Delete(string name)     {         _handler.Delete(name);     }     protected virtual byte[] EncodeCookieValue(string value)     {         var bytes = Encoding.UTF8.GetBytes(value);         byte[] buffer = bytes;         foreach (var transform in _transforms)         {             buffer = transform.Encode(buffer);         }         return buffer;     }     protected virtual string DecodeCookieValue(byte[] bytes)     {         var buffer = bytes;         for (int i = _transforms.Count; i > 0; i—)         {             buffer = _transforms[i - 1].Decode(buffer);         }         return Encoding.UTF8.GetString(buffer);     } } HTH

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• Fast way to set text format for a range of Text using TLF

  - by wezzy

  Hi, i have to set the text format for some tokens in a plain text. I'm trying to use the Text Layout Framework to improve the speed of the operation but i've founded that TLF is far slower (10X in my tests) than the old setTextFormat(). For each token i call this function: public function setTextFormat(format:TextLayoutFormat, begin:int, end:int):void{ var selection:SelectionState = new SelectionState(this._textFlow, begin, end, this._normalFormat); IEditManager(_textFlow.interactionManager).applyLeafFormat(format, selection); } is there any faster and clever way to do this operation ? Thanks

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• should i take Exam 70-515 or should i wait for Exam 70-480 ? [closed]

  - by Filip

  As it states on Microsoft site exam 70-515 is scheduled to retire July 31, 2013. His successor is suppose to be exam 70-480 in my understanding. I know most of the stuff in exam 70-515 but it will take me like one mount to read the book from Microsoft Press Resource Center and get ready for the exam, also i will be paying for the exam not the company i work for. So i think it is better to start reading books and forums that concentrate on how and for what will be exam 70-480 then paying for something that will not be valued for ~ 1 year from now. Whats your thoughts/suggestions ?

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• How do I draw anti-aliased holes in a bitmap

  - by gyozo kudor

  I have an artillery game (hobby-learning project) and when the projectile hits it leaves a hole in the ground. I want this hole to have antialiased edges. I'm using System.Drawing for this. I've tried with clipping paths, and drawing with a transparent color using gfx.CompositingMode = CompositingMode.SourceCopy, but it gives me the same result. If I draw a circle with a solid color it works fine, but I need a hole, a circle with 0 alpha values. I have enabled these but they work only with solid colors: gfx.CompositingQuality = CompositingQuality.HighQuality; gfx.InterpolationMode = InterpolationMode.HighQualityBicubic; gfx.SmoothingMode = SmoothingMode.AntiAlias; In the two pictures consider black as being transparent. This is what I have (zoomed in): And what I need is something like this (made with photoshop): This will be just a visual effect, in code for collision detection I still treat everything with alpha 128 as solid. Edit: I'm usink OpenTK for this game. But for this question I think it doesn't really matter probably it is gdi+ related.

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