Like most people, I have a lot of HtmlHelper classes in my asp.net mvc project.
When I add an extra parameter to a Helper method, I don't get any build error.
Which is logical, because it is used in the aspx page.
Is there any tool/option/... which shows you all the places where an error will occur at runtime?
I know you can use find all, but that's not very helpful in some circumstances.
thanks,
Filip
You can build MVC views. Edit your MVC project file:
<MvcBuildViews>true</MvcBuildViews>
Related
We have approximately 900 aspx pages website (webforms). We need to convert them into mvc4 application.
Problem is that when we convert it to mvc4 then it need to convert in to form of webapplication and when it convert in to webapplication then it create multiple designer file into my project. and it fire the error that
Error 5 Type 'Admin_Page_List_World' already defines a member called 'Page_Load' with the same parameter types
This happened because the Admin_Page_List_World class is a partial class and it is defined in multiple places.
If I remove the particular class then it fires the error partial directive is used in another place. There are multiple entry.
So, can anyone explain or suggest what I can do to resolve this issue?
Are you converting everything into MVC in one shot?I would suggest a iterative approach. Convert the project into MVC and make sure the .aspx routes are ignored. Then slowly change pages one by one. One good link below.
http://blog.falafel.com/integrating-aspnet-mvc-4-into-existing-web-forms-applications/
I want to render MVC controls in non-MVC ASP.Net pages. Is this possible?
RenderPartial is an extension method that extends the HtmlHelper. The HtmlHelper's constructor takes a ViewContext. All 3 of those are in the System.Web.Mvc namespace. So, you'd have to a the very least reference the Mvc dll. You would also need to create an HTML helper by creating the other 2 objects. I'd be interested if you got it work, but I don't know if it's possible.
We need to reference the MVC dll into the project and also need to define similar structure like Route.config which will have default rout. Also we would have Model, View and Controller folder, in which we should have the Views web.config as well
After many attemps to get Html.ActionLink<> and Html.Image() methods from different assemblies without any success could you help find the source of these methods so that I can use them in my Web app ?
Thanks
The ASP.NET MVC source code is available at codeplex.
The Html Helper methods are located in the HtmlHelper class, in the namespace System.Web.Mvc.
Or, you can open the System.Web.Mvc DLL using Reflector, and view the source for the HtmlHelper methods there.
Maybe post some code? Are you sure you're using MVC? Are you trying in your View? Are you doing something like the following?:
<%=Html.TextBox("myTextBox")%>
Trying to create a MVC User Control in the Release Candidate and I can't see to make one with a codebehind file. The same is true for MVC View pages.
Creating Views in the Beta would produce codebehinds...am I missing something?
Code behind kind of defeats the purpose of the MVC Framework. Functionality should be kept separate from the view, the MVC team felt that code behind pages went against this ideology and therefore removed them.
Your can create a custom helper method to create your control. Also I'm not sure if MVC has view components (Monorail/Castle) but that could be an option as well.
From ScottGu's Blog post:
*Views without Code-Behind Files
Based on feedback we’ve changed view-templates to not have a code-behind file by default. This change helps reinforce the purpose of views in a MVC application (which are intended to be purely about rendering and to not contain any non-rendering related code), and for most people eliminates unused files in the project.
The RC build now adds C# and VB syntax support for inheriting view templates from base classes that use generics. For example, below we are using this with the Edit.aspx view template – whose “inherits” attribute derives from the ViewPage type:
One nice benefit of not using a code-behind file is that you'll now get immediate intellisense within view template files when you add them to the project. With previous builds you had to do a build/compile immediately after creating a view in order to get code intellisense within it. The RC makes the workflow of adding and immediately editing a view compile-free and much more seamless.
Important: If you are upgrading a ASP.NET MVC project that was created with an earlier build make sure to follow the steps in the release notes – the web.config file under the \Views directory needs to be updated with some settings in order for the above generics based syntax to work.*
I answered this question here:
How to add a Code-behind page to a Partial View
Seems this wasn't particularly tricky, and is quite do-able
This answer worked for a Partial 'ViewUserControl' but the same should apply
Ok.
First: Add a Class file with the convention of .cs (i.e. view.ascx.cs)
Second: Add "using System.Web.Mvc;" to the class
Third: Change the Class to Inherit from "ViewUserControl<>"
Fourth: Add the following to the View's header:
CodeBehind="View.ascx.cs" Inherits="Project.Views.Shared.View"
Fifthly: Copy the files out of the solution and drag back in to reassociate the two together
Note: For this to work with a Normal MVC View you just need to inherit the class from "ViewPage"
The whole idea for ASP.Net-mvc was to get rid of the codebehind files...thats why asp web controls didnt matter that most didn't work.But with the changes of getting rid of the code behind comes with a different programming style..The idea is codebehind files are EVIL:
http://stevesmithblog.com/blog/codebehind-files-in-asp-net-mvc-are-evil/
the whole idea is to make sure people remember they are using asp.Net-mvc and not asp.et web pages. take alook at this link ,it explains it a little better:
http://blog.lozanotek.com/archive/2008/10/20/Visual_Studio_Templates_for_MVC_Views_without_Codebehind_Files.aspx
I think this tutorial is what you are asking.. but not really sure what you want..
I have been using ASP.net MVC for a new website.
I have found a minor nagging issue with having views with the same name but are in different folders i.e. Views/Home/Index.aspx and Views/Account/Index.aspx
The codebehind files act as if they are partial classes when there is a definition for the same event or function (i.e. PageLoad event). I have avoided this issue by explicitly providing a Namespace to the codebehind file (using the Folder name) and updating the reference in the markup page.
But like i said, this is annoying. Is there something i'm not doing correctly? or is this just a bug in beta software?
No, this is not a bug in the beta software. It has nothing to do with MVC specifically or ASP.NET in general. Essentially, your problem boils down to you wanting to have two distinct classes with the same name. The only way to do this is to put them in different namespaces.