I have worked on asp.net 2.0 years ago and recently worked on SL and WPF applicaiton have idea on mvvm. As my next project would be on ASP.net MVC DotNet FW 3.5, I was looking for sample application code using MVC any links\forum on this would be of gr8 help.
Welll I was going through http://www.asp.net/mvc/tutorials/mvc-music-store/mvc-music-store-part-3 and noticed the view uses cshtml file extension rather aspx and was confused. Please, point me to some refernces to start as a biggner.
First of all i'd recommend MVC4 and .Net 4.
The easiest way to learn is create a new project using the default MVC 4 internet project template. It has all the basics covered.
The most important about MVC is that you forget about webpages being files on disk. The .aspx and .cshtml files in MVC are views returned by a controller. A controller is a class which has functions, called Actions in MVC terms. If you have an url /Home/Index MVC would call function Index in controller class Home.
The .cshtml extension is used by view template files rendered by the ASP.Net MVC3 Razor View Engine. I often find videos to be great introductions to topics about which I want to learn more.
I recently joined a group that manages a Classic ASP web application. It has been working fine for our group's need. However, a decision was made, before I joined, to move to ASP .Net. Since we are mostly ASP developers, we write code in ASP .Net as we would in Classic ASP (for the most part). Would it be possible to introduce MVC to this application/project?
Thanks!
Yes, it is possible to use MVC in a traditional WebForms project. I migrated a large WebForms project to MVC 2 a couple of years ago, and here are my findings (I have updated them to reflect MVC 3)
Make sure you have .NET 4.0 installed, as well as the MVC 3 framework and VS extensions.
Create a new blank MVC project to use as a reference.
Look at the default web.config for the reference project. You basically want to use the reference web.config, and merge in stuff you need from your current project.
Look at the reference global.asax.cs. Similar to the above, you want to merge the changes in the reference .cs into your current application's global.asax.cs.
You will need to add the following references to your web project:
System.Web.Abstractions,
System.Web.Extensions,
System.Web.Helpers,
System.Web.Mvc,
System.Web.Routing
You can enable the VS extensions by changing the ProjectTypeGuids:
In Solution Explorer, right-click the project name and select Unload Project. Then right-click the project name again and select Edit ProjectName.csproj.
Locate the ProjectTypeGuids element and add {E53F8FEA-EAE0-44A6-8774-FFD645390401}.
Save the changes, right-click the project, and then select Reload Project.
Add the following standard folders for MVC content:
~/Views
~/Views/Shared
~/Controllers
~/Models (for your view models, optional)
~/Content (for CSS and images, optional)
~/Scripts (for JS, optional)
Additional notes:
If your existing WebForms relies on web.config settings for authorization (such as preventing unauthorized users), this won't be recognized by MVC actions, because routing works completely separately from the WebForms authorization. Use AuthorizeAttribute to require authorization, or constrain actions to certain roles or users. You can even specify global filters so you don't have to apply this attribute on every single controller or action.
There may be additional considerations for making MVC work with IIS versions prior to 7, or with application pools that use the Classic pipeline. Consider using IIS 7+ with Integrated pipeline.
My notes above mainly involve getting the baseline of MVC working, which uses ASPX views. ASPX views use the same markup as the ASPX files you are used to in WebForms. You can also use the new Razor syntax (primer), which I highly recommend. You can use both ASPX and Razor view pages at the same time. However, you cannot use an ASPX master page on a Razor view (or vice versa). Also, MVC will find and use ASPX views before Razor views, so if you upgrade a view to Razor, delete the original ASPX. You will need to do a little additional work to enable Razor views. I'm trying to find my notes for enabling Razor. I'll update when I find them. Once you do have Razor installed and working, you can use this tool by Telerik to convert ASPX to Razor.
Here is a question on SO about a problem I'd had while upgrading. I'm only providing it because it covered some of the points I mentioned above in more detail. However, I was upgrading to MVC 2 at the time, so some of this stuff is out of date.
The short answer is yes it is possible.
Scott Hanselman has written about this topic before.
Depending on the skills in your team, you may well find it difficult to get up to speed - it is possible to write clean MVC style code in Classic ASP but most people don't.
It is of course technically possible. However, it sounds like it would be a cultural shock, as MVC works quite a bit differently than Classic ASP or ASP.NET WebForms. I think it would be worthwhile to do - or just stick with ASP.NET WebForms if that seems more natural. But if you've not yet fully committed to WebForms, MVC seems just as easy to move to, IMO.
Yes. I worked on a project that began as plain ASP.NET and later added some ASP.NET MVC pages. Eventually we liked MVC so much more that we eventually migrated all of our WebForms pages to use MVC instead. But the whole time, the two systems worked very well together.
Here's the only real gotcha that I can remember running into: WebForms works by having the entire page encased in a big <form> tag. Since HTML doesn't allow you to have nested <form> tags, you typically can't use MVC forms inside of a WebForms page. Either keep your WebForms pages separate from your MVC content, avoid using HTML forms in MVC content that may appear on a WebForms page, or use popup dialogs for your forms that get created outside of the WebForms DOM area.
With ASP.net MVC 3.0 and visual studio 2010 I can generate views easily by selecting the Controller action ( right click + scaffolding ), so I select the type of View (details,list,edit...) and I can even select the Entity/List that the view will use as datasource.
The questions is: Is there such thing working with Java JSP and servlet with eclipse where I don't have to manually change web.xml?
There's something wrong here. Comparing ASP.NET MVC with JSP/Servlets is really like comparing apples with oranges. ASP.NET MVC is a fullworthy component based MVC framework, but JSP is a barebones view technology and Servlet is just a barebones HTTP controller API. There is absolutely no means of a comparable component based MVC framework here with JSP/Servlet.
You need to look for a component based MVC framework in Java side. From the standard Java EE API, JSF is been offered.
However, as to the tooling, there are as far as I know no "Scaffolding" plugins for JSF available in Eclipse which does bottom-top code generation all the way from DB until with the JSF view. Closest what you can get in Eclipse is generating JPA entities from DB, but it stops here.
Netbeans has a JSF CRUD generator though.
See also:
What is the difference between JSF, Servlet and JSP?
What is the main-stream Java alternative to ASP.NET / PHP
Recommended JSF 2.0 CRUD frameworks
We have an existing ASP.Net Web Application. I would like to create an ASP.Net MVC Razor Application where the two applications will work together. A single Master Page would contain menu items that can call .aspx pages as well as Razor .cshtml pages.
I have seen an example using MvcContrib Portable areas utilizing Routing. This particular example has .aspx pages in both (the MVC was not Razor).
Is there an example out there that will show the two running side-by-side and the MVC is Razor? It would be best if I could download a visual Studio Solution so that I can run this.
I am not sure if the MvcContrib way is the latest and best way to achieve this.
I do not want to go Hybrid!
You don't need any other external librarry. You can always convert the existing ASP.NET web forms Project to be a Hybrid one which uses webforms and MVC. You need to add the required MVC assembly references and make some changes to the web.config and you are all set. Scott has a simple and awesome blog post about this where he explains how to do the conversion.
I scribbled a note about how to enable the MVC specific Context menu( Add Controller / Add View) in the hybrid project after conversion here
With ASP.NET MVC 1.0 I always have been able to generate strongly typed links in my Views using a lambda function:
Html.BuildUrlFromExpression<TController>(c => c.Action(arg));
I'm now upgrading to ASP.NET MVC 2.0 beta and I can't find any strongly typed extension for the HtmlHelper (nor the UrlHelper in fact). Have they been replaced by some other method? Is there a new way of building links to controller actions?
I'd hate to go back to using strings in my views.
The strongly-typed URL generation helpers are part of the MVC Futures binary, not the MVC core binary itself. You can download a version of MVC Futures that works with MVC 2 Beta from CodePlex.
It takes one line to implement you own extension with same functionality. I actually do it even in MVC v1, because Url.Href<> is shorter ;-) You can copy code from MVC sources for this.