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• iphone: cross platform references and referencing external framework resources

  - by dan

  hi there working on an iphone app and separate framework. the separate framework is for an API that i'm building for use in multiple future apps. this api now needs to reference resources (images). what i would like to do is keep the resources WITH the API framework as local set of resources. i followed the instructions from http://www.clintharris.net/2009/iphone-app-shared-libraries/ to setup my app's project to use the headers from the separate API framework. what i can't seem to figure out is how to automatically load the framework's resources into the app's xcode environment so they can be linked in at app compile time. sure, i can drag the resources across from the framework into the main app's set of resources. but that seems kinda ugly and another step that possibly can be automated (??) anyone know of a better way? it would be great if any changes from the framework would be automatically available in the main app (due to the project 'link-age'). thanks for any help/tips/suggestions...

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• Maintain scroll position in ASP.NET

  - by nikolaosk

  One of the most common questions I get is " How to maintain the scroll position-location when a postback occurs in our ASP.NET application? " A lot of times when we click on a e.g a button in our application and a postback occurs, our application "loses" its scroll position. The default behaviour is to go back to the top of the page. There is a very nice feature in ASP.NET that enables us to maintain the scroll position in ASP.NET. The name of this attribute is MaintainScrollPositionOnPostBack ....(read more)

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• Adding Client-Side events to DevExpress ASP.Net controls

  - by nikolaosk

  I have been involved in a ASP.Net project recently and I have implemented it using the awesome DevExpress ASP.Net controls. In this post I would like to show you how to use the client-side events that can make the user experience of your web application for the end user much better.We do avoid unnecessary page flickering and postbacks.All this functionality is possible through the magic of Ajax and Javascript.I am not going to cover Ajax and Javascript on this post. With the DevExpress ASP.net controls...(read more)

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• Maintain scroll position in ASP.NET

  - by nikolaosk

  One of the most common questions I get is " How to maintain the scroll position-location when a postback occurs in our ASP.NET application? " A lot of times when we click on a e.g a button in our application and a postback occurs, our application "loses" its scroll position. The default behaviour is to go back to the top of the page. There is a very nice feature in ASP.NET that enables us to maintain the scroll position in ASP.NET. The name of this attribute is MaintainScrollPositionOnPostBack ....(read more)

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• New Book From Luís Abreu: ASP.NET 4.0 – The Complete Course (Portuguese)

  - by Paulo Morgado

  Thsi book, with several practical examples, presents how to build web applications using ASP.NET 4.0. Starts by introducing the framework to build pages and controls and gradually introduces all the new features available. More compact that its previous versions  (part of the content was moved to FCA’s site in the form of apendices), this new book gives emphasis to to the new features in ASP.NET 4.0 and targets both developers new to ASP.NET and developers moving from previous versions of ASP.NET. This time there’s good new for Brazilian readers. The book will be distributed in Brazil by: Zamboni Comércio de Livros Ltda. Av.Parada Pinto, 1476 São Paulo – SP Telf. / Fax: +55 11 2233-2333 E-mail: [email protected] Our book (LINQ Com C# (Portuguese)) isn’t still distributed in Brazil, but, if you want it, you can always try that distributer.

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• ASP.NET AppDomain–What it is and why it’s important–Part 12 of 52 part series

  - by OWScott

  AppDomains are a silent mysterious part of ASP.NET and IIS.  It’s important for the web administrator to be aware of this building block of ASP.NET so that we can be aware of how changes to the system can affect production sites. While this series is targeted at the IIS and web administrator, this topic is useful for the ASP.NET programmer too. This is week 12 of a 52 week series on various web administration related tasks. Past and future videos can be found here.

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• jQuery Templates in ASP.NET - Blogs Series

  - by hajan

  In the previous days, I wrote several blog posts related to the great jQuery Templates plugin showing various examples that might help you get started working with the plugin in ASP.NET and VS.NET environment. Here is the list of all five blogs: Introduction to jQuery Templates jQuery Templates - tmpl(), template() and tmplItem() jQuery Templates - {Supported Tags} jQuery Templates with ASP.NET MVC jQuery Templates - XHTML Validation Thank you for reading and wait for my next blogs! All the best, Hajan

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• Introduction to Developing Mobile Web Applications in ASP.NET MVC 4

  - by bipinjoshi

  As mobile devices are becoming more and more popular, web developers are also finding it necessary to target mobile devices while building their web sites. While developing a mobile web site is challenging due to the complexity in terms of device detection, screen size and browser support, ASP.NET MVC4 makes a developer's life easy by providing easy ways to develop mobile web applications. To that end this article introduces you to the basics of developing web sites using ASP.NET MVC4 targeted at mobile devices.http://www.binaryintellect.net/articles/7a33d6fa-1dec-49fe-9487-30675d0a09f0.aspx

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• AJAX 4 no ASP.NET 4 Web Application

  - by renatohaddad

  Andei fazendo uns testes no AJAX Control Toolkit 4 que deverá ser usado com o ASP.NET 4 no Visual Studio .NET 2010 e confesso que gostei muito. O link para download é http://www.asp.net/ajaxlibrary/act.ashx e todas as instruções constam no site. Notei que há diversos controles novos e um que me chamou a atenção foi o de Upload assíncrono para controlar os uploads de arquivos para o server. Vale a pena estudar um pouco estas novidades. Para quem já usava o AJAX no ASP.NET 3.5, a idéia do Toolkit é igual, exceto a adição de novos controles. Com o AJAX vc pode mudar todo o comportamento da sua aplicação WEB, requisições no server passam a ser menos frequentes, o layout ajuda e muito com os controles do AJAX. Nativamente no VS 2010 já há o AJAX que a MS suporta nativamente (ScriptManager, UpdatePanel, UpdateProgress, etc), mas vale a pena implementar alguns controles do Toolkit. Bons estudos!

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• Daily tech links for .net and related technologies - Apr 1-3, 2010

  - by SanjeevAgarwal

  Daily tech links for .net and related technologies - Apr 1-3, 2010 Web Development Cleaner HTML Markup with ASP.NET 4 Web Forms - Client IDs - ScottGu Using jQuery and OData to Insert a Database Record - Stephen Walter Apple vs. Microsoft – A Website Usability Study Mastering ASP.NET MVC 2.0: Preview - TekPub Web Design UX Lessons Learned From Offline Experiences - Jon Phillips 5 Steps Toward jQuery Mastery - Dave Ward 20 jQuery Cheatsheets, Docs and References for Every Occasion - Paul Andrew 11...(read more)

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• Daily tech links for .net and related technologies - June 8-11, 2010

  - by SanjeevAgarwal

  Daily tech links for .net and related technologies - June 8-11, 2010 Web Development ASPNET MVC: Handling Multiple Buttons on a Form with jQuery - Donn Building a MVC2 Template, Part 14, Logging Services - Eric Simple Accordion Menu With jQuery & ASP.NET - Steve Boschi Conditional Validation in MVC -Simonince Creating a RESTful Web Service Using ASP.Net MVC Part 23 – Bug Fixes and Area Support - Shoulders of Giants Web Design The Principles Of Cross-Browser CSS Coding - Louis Lazaris Transparency...(read more)

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• ASP.NET AJAX and my axe!

  - by Marlon

  So, I'm seriously considering axing ASP.NET AJAX from my future projects as I honestly feel it's too bloated, and at times convoluted. I'm also starting to feel it is a dying library in the .NET framework as I hardly see any quality components from the open-source community. All the kick-ass components are usually equally bloated commercial components... It was cool at first, but now I tend to get annoyed with it more than anything else. I'm planning on switching over to the jQuery library as just about everything in ASP.NET AJAX is often easily achievable with jQuery, and, more often than not, more graceful of a solution that ASP.NET AJAX and it has a much stronger open-source community. Perhaps, it's just me, but do you feel the same way about ASP.NET AJAX? How was/is your experience working with ASP.NET AJAX?

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• .NET Reflector 7 Released

  - by Paulo Morgado

  This new version fixes a number of bugs and adds support for more high level C# features such as iterator blocks. A new tabbed browsing model was added and Jason Haley's PowerCommands add-in was included as an exploratory step for future versions. To find out more about version 7 just visit http://www.reflector.net/. The release of version 7 also means that the free version of .NET Reflector is no longer available for download. Maybe you can still get one of the give away licenses that Red Gate provided to communities and individuals.

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• Slides and links for Entity Framework 4 and Azure from Devweek 2010

  - by Eric Nelson

  Last week (March 2010) I presented on Entity Framework 4 and the Windows Azure Platform at www.devweek.com. As usual, it was a great conference and I caught up with lots of old friends and made some new ones along the way. Entity Framework 4 Entity Framework 4 In Microsoft Visual Studio 2010 View more presentations from Eric Nelson. Windows Azure and SQL Azure Building An Application For Windows Azure And Sql Azure View more presentations from Eric Nelson. Entity Framework 4 Related Links Poll on Entity Framework 4 – one year on 101 EF4 Resources Recent resources on Entity Framework 4 Installing all the bits to demo Entity Framework 4 on the Visual Studio 2010 Release Candidate Azure Related Links UK Azure Online Community – join today. UK Windows Azure Site Start working with Windows Azure TCO and ROI calculator for Windows Azure

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• How To Get Web Site Thumbnail Image In ASP.NET

  - by SAMIR BHOGAYTA

  Overview One very common requirement of many web applications is to display a thumbnail image of a web site. A typical example is to provide a link to a dynamic website displaying its current thumbnail image, or displaying images of websites with their links as a result of search (I love to see it on Google). Microsoft .NET Framework 2.0 makes it quite easier to do it in a ASP.NET application. Background In order to generate image of a web page, first we need to load the web page to get their html code, and then this html needs to be rendered in a web browser. After that, a screen shot can be taken easily. I think there is no easier way to do this. Before .NET framework 2.0 it was quite difficult to use a web browser in C# or VB.NET because we either have to use COM+ interoperability or third party controls which becomes headache later. WebBrowser control in .NET framework 2.0 In .NET framework 2.0 we have a new Windows Forms WebBrowser control which is a wrapper around old shwdoc.dll. All you really need to do is to drop a WebBrowser control from your Toolbox on your form in .NET framework 2.0. If you have not used WebBrowser control yet, it's quite easy to use and very consistent with other Windows Forms controls. Some important methods of WebBrowser control are. public bool GoBack(); public bool GoForward(); public void GoHome(); public void GoSearch(); public void Navigate(Uri url); public void DrawToBitmap(Bitmap bitmap, Rectangle targetBounds); These methods are self explanatory with their names like Navigate function which redirects browser to provided URL. It also has a number of useful overloads. The DrawToBitmap (inherited from Control) draws the current image of WebBrowser to the provided bitmap. Using WebBrowser control in ASP.NET 2.0 The Solution Let's start to implement the solution which we discussed above. First we will define a static method to get the web site thumbnail image. public static Bitmap GetWebSiteThumbnail(string Url, int BrowserWidth, int BrowserHeight, int ThumbnailWidth, int ThumbnailHeight) { WebsiteThumbnailImage thumbnailGenerator = new WebsiteThumbnailImage(Url, BrowserWidth, BrowserHeight, ThumbnailWidth, ThumbnailHeight); return thumbnailGenerator.GenerateWebSiteThumbnailImage(); } The WebsiteThumbnailImage class will have a public method named GenerateWebSiteThumbnailImage which will generate the website thumbnail image in a separate STA thread and wait for the thread to exit. In this case, I decided to Join method of Thread class to block the initial calling thread until the bitmap is actually available, and then return the generated web site thumbnail. public Bitmap GenerateWebSiteThumbnailImage() { Thread m_thread = new Thread(new ThreadStart(_GenerateWebSiteThumbnailImage)); m_thread.SetApartmentState(ApartmentState.STA); m_thread.Start(); m_thread.Join(); return m_Bitmap; } The _GenerateWebSiteThumbnailImage will create a WebBrowser control object and navigate to the provided Url. We also register for the DocumentCompleted event of the web browser control to take screen shot of the web page. To pass the flow to the other controls we need to perform a method call to Application.DoEvents(); and wait for the completion of the navigation until the browser state changes to Complete in a loop. private void _GenerateWebSiteThumbnailImage() { WebBrowser m_WebBrowser = new WebBrowser(); m_WebBrowser.ScrollBarsEnabled = false; m_WebBrowser.Navigate(m_Url); m_WebBrowser.DocumentCompleted += new WebBrowserDocument CompletedEventHandler(WebBrowser_DocumentCompleted); while (m_WebBrowser.ReadyState != WebBrowserReadyState.Complete) Application.DoEvents(); m_WebBrowser.Dispose(); } The DocumentCompleted event will be fired when the navigation is completed and the browser is ready for screen shot. We will get screen shot using DrawToBitmap method as described previously which will return the bitmap of the web browser. Then the thumbnail image is generated using GetThumbnailImage method of Bitmap class passing it the required thumbnail image width and height. private void WebBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) { WebBrowser m_WebBrowser = (WebBrowser)sender; m_WebBrowser.ClientSize = new Size(this.m_BrowserWidth, this.m_BrowserHeight); m_WebBrowser.ScrollBarsEnabled = false; m_Bitmap = new Bitmap(m_WebBrowser.Bounds.Width, m_WebBrowser.Bounds.Height); m_WebBrowser.BringToFront(); m_WebBrowser.DrawToBitmap(m_Bitmap, m_WebBrowser.Bounds); m_Bitmap = (Bitmap)m_Bitmap.GetThumbnailImage(m_ThumbnailWidth, m_ThumbnailHeight, null, IntPtr.Zero); } One more example here : http://www.codeproject.com/KB/aspnet/Website_URL_Screenshot.aspx

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• Changing from Frontend Development to .Net

  - by Ivo

  On of my colleagues is going to change jobs from full time frontend developer(jquery, css,html) to 50% frontend 50% .Net (MVC 3 with razor) What are good techniques to get him up to speed asap. I have the following idea's myself Read Clean Code Read/Pratice with the book Pro ASP.NET MVC 3 Framework Watch Asp.net video's http://www.asp.net/mvc/videos Do the nerd dinner intro http://www.asp.net/mvc/videos Start building the json services from jQuery 0.5/1 day of pair programming with an experienced .Net developer each week Is this a good way to go? Is it totally wrong? Any other tips

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• Going back to ASP.Net Webforms from ASP.Net MVC. Recommend patterns/architectures?

  - by jlnorsworthy

  To many of you this will sound like a ridiculous question, but I am asking because I have little to no experience with ASP.Net Webforms - I went straight to ASP.Net MVC. I am now working on a project where we are limited to .Net 2.0 and Visual Studio 2005. I liked the clean separation of concerns when working with ASP.Net MVC, and am looking for something to make webforms less unbearable. Are there any recommended patterns or practices for people who prefer asp.net MVC, but are stuck on .net 2.0 and visual studio 2005?

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• Easy way of engaging non-programmers (i.e. designers) into using version control?

  - by Kevin

  What are some key ways of getting your team involved in using version control during development, web development or otherwise? I refuse to work without it, which means anyone involved in the project must also use it. It's just good practice. GUIs like Tower have helped, but the concept of it is either met with anger ('not my job!' kinda attitude), timidness, or just straight up not using it (using FTP instead, circumventing version control for say, dev or deployment). Edit: I should have clarified a little that I don't just mean images/PSDs.

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• ASP.Net Development Tips

  Opening ASP.NET 3.5 websites in VWD 2010 VWD Express 2010 by default supports ASP.NET 4.0. If you are opening old projects that are based on either ASP.NET 3.5 or ASP.NET 2.0, you need to make some adjustments. Refer to the steps below: 1. Back up the folder containing your ASP.NET 3.5 website files and place it in another directory. For example, suppose this is the path of your original ASP.NET website that needs to be opened in VWD 2010: L:aspdotnetprojectsareaofcirclefunction Copy that folder (do not cut it) and put it in a separate folder that can be accessed by VWD 2010. By copying the fo...

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• Routing in ASP.Net 4.0 Web Forms

  - by nikolaosk

  In this blog post I would like to talk about a new ASP.Net 4.0 feature, URL Routing . I know this issue has been explained from various people on the web but I will give my own example. We could implement routing since ASP.Net 3.5 SP1 but it was there primarily to support ASP.Net MVC . Even in that release you could implement rounting in web forms but it was a quite difficult thing to do. However in ASP.Net 4.0 there is an integrated support for routing. It becomes easy to map requests in your site...(read more)

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• How are you using the Managed Extensibility Framework?

  - by dboarman

  I have been working with MEF for about 2 weeks. I started thinking about what MEF is for, researching to find out how to use MEF, and finally implementing a Host with 3 modules. The contracts are proving to be easy to grasp and the modules are easily managed. Although MEF has a very practical use, I am wondering to what extent? I mean, is everyone going to be rewriting existing applications for extensibility? Yes, that sounds, and is insanely impractical. Rhetorically speaking: how is MEF affecting the current trends in programming? have you begun looking for opportunities to use MEF? have you begun planning a major re-write of an existing app that may benefit from extensibility? That said, my questions are: how do I know when I should plan a new project with extensibility? how will I know if an existing project needs to be re-written for extensibility? Is anyone using MEF?

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• Is it possible for a good programmer to have never used version control?

  - by lortabac

  I am looking for an expert programmer to help solve a difficult situation. The interviews so far have been surprisingly disappointing. The best candidate so far is a very experienced programmer who has never used version control software. The problem in itself might not be too serious because it is something which can be learned in a short time. But there is a deeper aspect, which worries me: How is it possible to actively develop software for 10-15 years without ever needing version control? Is the fact itself of not looking for a solution to the problem of tracking changes a sign of a wrong attitude to programming?

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• Code maintenance: To add comments in code or to just leave it to the version control?

  - by Chillax

  We have been asked to add comments with start tags, end tags, description, solution etc for each change that we make to the code as part of fixing a bug / implementing a CR. My concern is, does this provide any added value? As it is, we have all the details in the Version control history, which will help us to track each and every change? But my leads are insisting on having the comments as a "good" programming practice. One of their argument is when a CR has to be de-scoped/changed, it would be cumbersome if comments are not there. Considering that the changes would be largely in between code, would it really help to add comments for each and every change we make? Shouldn't we leave it to the version control?

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• Retrieve data from an ASP.Net application using ADO.Net 2.0 connected model

  - by nikolaosk

  I have been teaching Entity Framework,LINQ to SQL,LINQ to objects,LINQ to XML for some time now. I am huge fan of LINQ to Entities and I am using Entity Framework as my main data access technology. Entity framework is in the second version right now and I can accomplish most of the things I need. I am sure the guys in the ADO.Net team will implement many more features in the future. I am a strong believer that you cannot really understand the benefits of LINQ to SQL or LINQ to Entities unless you...(read more)

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• Is it unusual for a small company (15 developers) not to use managed source/version control?

  - by LordScree

  It's not really a technical question, but there are several other questions here about source control and best practice. The company I work for (which will remain anonymous) uses a network share to host its source code and released code. It's the responsibility of the developer or manager to manually move source code to the correct folder depending on whether it's been released and what version it is and stuff. We have various spreadsheets dotted around where we record file names and versions and what's changed, and some teams also put details of different versions at the top of each file. Each team (2-3 teams) seems to do this differently within the company. As you can imagine, it's an organised mess - organised, because the "right people" know where their stuff is, but a mess because it's all different and it relies on people remembering what to do at any one time. One good thing is that everything is backed up on a nightly basis and kept indefinitely, so if mistakes are made, snapshots can be recovered. I've been trying to push for some kind of managed source control for a while, but I can't seem to get enough support for it within the company. My main arguments are: We're currently vulnerable; at any point someone could forget to do one of the many release actions we have to do, which could mean whole versions are not stored correctly. It could take hours or even days to piece a version back together if necessary We're developing new features along with bug fixes, and often have to delay the release of one or the other because some work has not been completed yet. We also have to force customers to take versions that include new features even if they just want a bug fix, because there's only really one version we're all working on We're experiencing problems with Visual Studio because multiple developers are using the same projects at the same time (not the same files, but it's still causing problems) There are only 15 developers, but we all do stuff differently; wouldn't it be better to have a standard company-wide approach we all have to follow? My questions are: Is it normal for a group of this size not to have source control? I have so far been given only vague reasons for not having source control - what reasons would you suggest could be valid for not implementing source control, given the information above? Are there any more reasons for source control that I could add to my arsenal? I'm asking mainly to get a feel for why I have had so much resistance, so please answer honestly. I'll give the answer to the person I believe has taken the most balanced approach and has answered all three questions. Thanks in advance

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