I have some HTML Helpers that I imported from an external project. How do I reference them within the ASPX file?
Currently I get an error similar to the following:
Compilation Error
Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately.
Compiler Error Message: CS1061: 'System.Web.Mvc.HtmlHelper<LC.TLAdminMVC.DAL.BusinessObjects.CompanySingleViewModel>' does not contain a definition for 'Configurator' and no extension method 'Configurator' accepting a first argument of type 'System.Web.Mvc.HtmlHelper<LC.TLAdminMVC.DAL.BusinessObjects.CompanySingleViewModel>' could be found (are you missing a using directive or an assembly reference?)
To better understand your situation can you answer one question.
Have you placed the helper methods inside the aspx files or are they external?
If they are external:
Make a directory in your solution named: app_code
Create a new file, whatever name (we'll call it 'Content')
When you want to use the helper method just call Content.methodName(params)
If they are internal:
Try checking if they are not nested inside a block.
Hope this helps,
Related
Looking at core code examples of say... Edit Action for SpecificationAttribute. I am looking to replicate this delete function in the same manner in my plugin, however, getting an error.
Getting this error
'IHtmlHelper' does not contain a definition for 'DeleteConfirmation' and no extension method 'DeleteConfirmation' accepting a first argument of type 'IHtmlHelper' could be found (are you missing a using directive or an assembly reference?)
I have used in 3.90 but it getting error in 4.0 asp.net core Has anyone used #Html.DeleteConfirmation in a plugin (on administration side) that could give me a clues
I have a span element in the html like the following;
<span id="myattribute-delete" class="k-button">#T("Admin.Common.Delete")</span>
And trying to use #Html.DeleteConfirmation("myattribute-delete")
I know I probably need to double check my route, by the error is leading me to think the issue is not a routing issue.
As #Stephen stated it's not part of MVC, and it's custom helper by nopCommerce.
#Html.DeleteConfirmation is helper till/in nopCommerce 3.90, but in 4.0 it has been changed to
<nop-delete-confirmation asp-model-id="#Model.Id" asp-button-id="myattribute-delete" />
And that helper located at Nop.Web.Framework.TagHelpers.Adminso you have to add reference of it to your view file.
In section 5 of the ASP>NET MVC Music Store example, "Creating the StoreManagerController," when I click "Add" I get the error,
There was an error running the selected code generator:
'Unable to retrieve metadata for 'MVCMusicStore.Models.Album.'
The popular solution is to comment out the connection string in Web.config. This did not work for me. After trying many things I decided to add the code manually, by taking it from the completed code that's included with the example. When I do that I receive the error,
Compiler Error Message: CS0234: The type or namespace name 'Album' does not exist in the namespace 'MvcMusicStore.Models' (are you missing an assembly reference?)
and on line 31 I see the error,
public class _Page_Views_StoreManager_Index_cshtml : System.Web.Mvc.WebViewPage<IEnumerable<MvcMusicStore.Models.Album>>
Album is defined in the models folder. I have used webform development many times and am trying to add MVC to my repertoire. It seems to me "Album' is not registered, but I don't even know if that's appropriate lingo for MVC. What's the problem? I'm running this example in Visual Studio 2017.
The problem with line 31 is my project is named "MVCMusicStore". In the completed code I imported it's "MvcMusicStore". So it's looking at the wrong thing for the 'Album'namespace. Still don't know what causes the first error.
After correcting the namespace in the sample file, that error goes away and the new error is on the line;
#foreach (var item in Model{
the error is "System.NullReferenceException 'Object reference not set to an instance of an object.'
According to this, you can specify samples as embedded resources by using EmbeddedResource:
type Declaracion = JsonProvider<"declaracion.json", EmbeddedResource="Irpf.Hechos, declaracion.json">
But when I reference this library, "Irpf.Hechos.dll", I get a File Not Found error, the path ConsumingLibraryPath\declaracion.json is not found; typecheck error FS3033
I have tried to set the declaracion.json file as resource, and content, but no luck.
Am I missing some step?
You need to set the build action as "EmbeddedResource" rather than "Resource".
I am trying to get the dotnetopenauth oauth2 "windows live" example to work that is shown here:
https://github.com/DotNetOpenAuth/DotNetOpenAuth/tree/master/samples/OAuthClient
In the WindowsLive.aspx.cs page these two lines do not work:
windowsLiveClient.ProcessUserAuthorizationAsync
windowsLiveClient.PrepareRequestUserAuthorizationAsync
When I run the page it shows the error:
Compiler Error Message: CS1061: 'DotNetOpenAuth.ApplicationBlock.WindowsLiveClient' does
not contain a definition for 'ProcessUserAuthorizationAsync' and no extension method
'ProcessUserAuthorizationAsync' accepting a first argument of type
'DotNetOpenAuth.ApplicationBlock.WindowsLiveClient' could be found (are you missing a
using directive or an assembly reference?)
I am using the dotnetopenauth ultimate 4.3.1.13153 dll.
I also put these three files, that I got from the DotNetOpenAuth.ApplicationBlock folder, in my app_code folder:
IOAuth2Graph.cs
WindowsLiveClient.cs
WindowsLiveGraph.cs
I apologize for being a beginner. I have spent a few days trying a million different things and I can't get past this.
So I've recently started with ASP.NET MVC 4. I'm using the razor engine.
My question is concerning the view files, with suffix cshtml. It seems to me that these are precompiled into *.cs files by razor which in turn are then compiled into MSIL. (A pattern that is familiar from my days as a JSP developer.) One reason why I am making this assumption is that if I enter some invalid c# code into the cshtml file I get a compilation error displayed like this:
Line 34: public class _Page_Views_BaseDataAdmin_Index_cshtml : ...
And line 34 is not indicative of where the error is in the cshtml file, just as the class _Page_Views_BaseDataAdmin_Index_cshtml seems to refer to a regular .net class not the view file.
So my question is: Where do I find the cs file? Specifically, in the example above, "_Page_Views_BaseDataAdmin_Index_cshtml.cs"? Maybe I need to add some config to tell MVC to keep this .cs file on disk, if so, how do I do this?
Thanks!
A quick tip to find the generated files is to add this to your .cshtml file.
This will show you immediately the full path
<div>This file is compiled to #this.GetType().Assembly.CodeBase</div>
You can find the compiled views in your Temporary ASP.NET Files folder.
First find the .compiled file that corresponds to your view (ex: home.cshtml):
home.cshtml.a8d08dba.compiled
This file contains the assembly name: assembly="App_Web_hkc53urb"
Your .cs file will be the assembly name concatenated with a number: App_Web_hkc53urb.1.cs
An easier approach might be to use Windows search for your view name in the temp ASP.NET directory.