I am starting to learn MVC 3 (Razor engine) and I am having difficulty understanding why my changes don't get applied to page. Basically I have done this: I have imported my DAL and model projects, I have created one controller and one view (in their respective folders) and in the controller Index method I am passing list of products to View
Data.ProductRepository repository = new Data.ProductRepository();
var list = repository.GetProducts(1, true);
return View(list);
And the data is displayed correctly on the page. Now, I want to reformat the columns that are auto generated in the view (I used scaffold list tamplate). The problem is that no matter what I change into this view, the changes are not reflected on the page. I stop the web server, start again, always the same layout is displayed. Even removing columns from table doesn't work. It seems like it is using some cashed version of this page.
Thanks,
Goran
After reinstalling both OS (XP) and IDE, it started working without any proeblems.
Related
I'm not sure if the question title really explains what I want to do, however I will explain below:
I am using the Visual Studio MVC project template and I have changed some of the tabs to map to different actions from different controllers. However I want to make one of the tabs to open a view that will again have links for different administration actions.
The problem I have is that I am unsure where to place this view as it doesn't really belong to an admin controller as each tab on this view will link to a list view in another controller. In effect it is a sub _Layout view, as it doesn't have anything to do with a controller.
I hope I have made myself clear enough!
You can place this view in the Shared folder since it will be used by multiple controllers. Or, you could place it somewhere else and reference it by using the full path to this View/Partial View
In a Controller
public ActionResult SomeAction(){
return View("~/Path/To/View/ViewName.cshtml");
}
In a View (Razor)
#Html.RenderPartial("~/Path/To/View/ViewName.cshtml");
With that said, the Shared folder makes the most sense since it will be shared across multiple controllers.
I have an MVC3 application and we are using Telerik Reporting. The Telerik report viewer must be hosted in an ASPX page named ReportPage.aspx. In its PageLoad method is logic to determine which report to display based on the querystring. I want to originate a request for a report from an MVC view and I would like the view to remain present, so I either need a popup or a new browser window for the display of the report. Once the user closes the report window, the original window should display intact.
I believe I can meet the above requirements, but here is the complication. I need to pass an large array of integers to ReportPage.aspx as an argument, so querystring won't work for me. As far as I know, I need to use a JSON object and a WebMethod to pass the array. But I don't see how the WebMethod (even if it is a method of ReportPage.aspx) can open ReportPage.aspx.
Does anyone see a way to make this work?
If your asp.net web site and your MVC web site have access to a shared database then:
Store dynamically the large array in the shared database and assign a unique report ID
Pass in the query string the report ID only.
In the aspx page load the report using the report ID
Run a sql job every night that deletes the previous day report IDs. No need to store them forever
After reading several posts on this subject I have yet to find an answer to my problem. I have an MVC 3 application and have added an Area to it. Everything works great until I try an return a view from a controller within the Area.
I can successfully post to the controllers Save Method but upon simply returning the view (return View()) I get the following:
The view 'Save' or its master was not found or no view engine supports the searched locations. The following locations were searched:
~/Areas/Test/Views/Default1/Save.aspx
~/Areas/Test/Views/Default1/Save.ascx
~/Areas/Test/Views/Shared/Save.aspx
~/Areas/Test/Views/Shared/Save.ascx
...
This seems so basic, not sure why I am running into so much trouble.
Ive used Phil Haack's RouteDebugger (http://nuget.org/packages/routedebugger) and all routes are working as setup...
MVC is expecting (by the convention) a view (with the same name as your action name in any one of the folders (by default, But you can override this). You should have the view in any of the folders. That is the MVC convention. So add your view to that folder. You can add it by right clicking the Return View() statmenet in your action method and selecting Add View option. It will automatically add one view.
Or you can right click on the Areas/Test/Views/Default1 folder and select Add View and save it with the same name as of your Action method. If you want to save it with a differnt name than the action name, you can use the View method like this
return View("MyOtherViewName");
Assuming that you added a MyOtherViewName.cshtml as your View in the Areas/Test/Views/Default1 folder
i'm using Razor for a new project in my company, and i have been playing with it for 2 days and already found some weird behaviour imho.
I have a home controller in the root of my webapp and a home controller in an area , call it Area1. In both these controllers I have an Index action and therefore I got an Index view in the Views root folder, and another one in the Area1\Views folder. If I remove the index view within the area , so Area1\Views\Index.cshtml and I request Area1\Home\Index, I don't get an error about the view engine not finding the view for that action , but the "base" Index view is found in \Views\Index.cshtml and rendered.
Someone knows if this is a bug or it's done by purpose ? If so, there's any way to disable this default ?
Definitely NOT a bug.
This behaviour allows easy reuse of View templates, eg, for error handling.
The default behaviour for ASP.NET MVC is that if you do...:
return View();
...it searches for the view template with the name of the action to use in a number of places: the default naming convention folder for the controller, ie, /Area1/Views/Home/, then /Area1/Views/Shared/ then Area1/Views/ then /Views/Shared/ then /Views/
If it finds no such View matching the name of the action, then it throws an error.
So much for the default behaviour. To "customize" this behaviour, you just need to do the following:
In your controller actions, you can specify the name of the View template to use when you return. EG:
return View("MyOtherView");
or better still, if using T4MVC:
return View(MVC.Area1.Home.Views.MyOtherView); // does away with "magic" strings
As a result, I don't see that you need to switch off the default behaviour to be able to do (whatever) you want. Controllers are there to, uhmmmm, control what views are used to display to the user. That is the best practice.
However, ASP.NET MVC is very configurable, so there are ways and means, I presume, to switch this off.
If you want to do this, good luck to you, but it makes much more sense to follow the defaults and get to understand how ASP.NET MVC works, especially if you are a beginner.
NOTE:
The above applies to ASP.NET MVC 1, 2, 3 and will continue to do so. It is the default behaviour for all View engines, including Razor and WebForm Views.
PS:
And you can configure the urls using route registration if your concern is the look of the url in the user's browser.
I want to specify (in one place) a default layout page in Razor, so that I can delete this:
#{ LayoutPage = "~/Views/Shared/_Layout.cshtml"; }
from every .cshtml file I have. But I don't know how... Any ideas? I'm using Razor engine from ASP.NET MVC 3 Preview 1.
Create a "~/Views/_ViewStart.cshtml" page and the following inside:
#{
Layout = "~/Views/Shared/_Layout.cshtml";
}
Note that you can write code in here, so it is possible to change your layout based on the type of device targeted, etc.
This is now created by default in an empty MVC3 project.
Source
It looks like the way to do this is by using a _init.cshtml file in the root of the view directory in which you would like a common page element (header). When the Razor view engine builds your page it looks for a few specific files automatically called _start.cshtml, _init.cshtml, and _end.cshtml; these files are loaded in respective order by the view engine for every request. Placing the LayoutPage definition, and/or other common initialization operations in these files will ensure they're run for all pages.
Note: I'm not sure if the effect is passed down into sub-directories as it wasn't clear from the documentation; you'll have to give it a try and find out.
There's quite a bit more detailed information on how to do this found in the Microsoft how-to book on building pages with Razor. I found the section Running Code Before and After Files in a Folder on page 169. Check this Microsoft download page for the full book as well as additional Razor samples.
There is no easy way to do this in MVC 3 Preview 1. This is a limitation of the preview bits that will be addressed in upcoming releases. Unfortunately _init.cshtml files do not work in this preview of MVC3 so you cannot follow the Web Pages pattern.
There are 2 ways I can think of to make it work (though neither is optimal)
write your own page base class that derives from WebViewPage and sets the right Layout in the constructor... but in that case you would have to specify an #inherits directive in every view.
set the layout override in your action method (using the View(string viewName, string masterName) override). You could write an intermediate controller base class that would have a helper method to save yourself the trouble of repeating the layout everywhere.