Asp.net core 在.NetCore 2.2项目中使用视图和ViewData时出错--
一个简短的问题。尝试从控制器方法返回视图时,我遇到以下错误 当前上下文中不存在名称视图 请参阅此图片以了解我的项目结构-- 我的代码是Asp.net core 在.NetCore 2.2项目中使用视图和ViewData时出错--,asp.net-core,view,controller,asp.net-core-2.2,viewdata,Asp.net Core,View,Controller,Asp.net Core 2.2,Viewdata,一个简短的问题。尝试从控制器方法返回视图时,我遇到以下错误 当前上下文中不存在名称视图 请参阅此图片以了解我的项目结构-- 我的代码是 using System; using System.Collections.Generic; using System.Linq; using System.Threading.Tasks; using Microsoft.AspNetCore.Mvc; using AutoMapper; using M
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using AutoMapper;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Authorization;
using CoreSpeechService.App.Utility;
public IActionResult ProductInfo(int p_id)
{
if(p_id>0)
{
var pEntity = pService.GetProductById(p_id);
if(pEntity!=null)
{
ViewData["ProductId"] = pEntity.Id;
return View(pEntity);
}
else
{
return RedirectToAction("Index");
}
}
else
{
return BadRequest("Could not fetch detailes related to this product at the moment. Please try later.");
}
}
人们会认为我已经在控制器中添加了所有必要的名称空间。显然不是。我有一种预感,这主要是由于我的项目结构[控制器和cshtml文件]。正确的脚手架问题?什么
应该怎么做
建议。谢谢
**值得一提的是,我的控制器是从ControllerBase继承的,而不是从controller继承的
当前上下文中不存在名称视图
这是因为您的控制器继承自ControllerBase
。您可以检查以下源代码,ControllerBase
默认不包含View()
方法。controller
继承自ControllerBase
并添加视图支持:
//A base class for an MVC controller with view support.
public abstract class Controller : ControllerBase, IActionFilter, IFilterMetadata, IAsyncActionFilter, IDisposable
{
protected Controller();
// Summary:
// Creates a Microsoft.AspNetCore.Mvc.ViewResult object that renders a view to the
// response.
//
// Returns:
// The created Microsoft.AspNetCore.Mvc.ViewResult object for the response.
[NonAction]
public virtual ViewResult View();
//
// Summary:
// Creates a Microsoft.AspNetCore.Mvc.ViewResult object by specifying a viewName.
//
// Parameters:
// viewName:
// The name or path of the view that is rendered to the response.
//
// Returns:
// The created Microsoft.AspNetCore.Mvc.ViewResult object for the response.
[NonAction]
public virtual ViewResult View(string viewName);
//
// Summary:
// Creates a Microsoft.AspNetCore.Mvc.ViewResult object by specifying a viewName
// and the model to be rendered by the view.
//
// Parameters:
// viewName:
// The name or path of the view that is rendered to the response.
//
// model:
// The model that is rendered by the view.
//
// Returns:
// The created Microsoft.AspNetCore.Mvc.ViewResult object for the response.
[NonAction]
public virtual ViewResult View(string viewName, object model);
//
// Summary:
// Creates a Microsoft.AspNetCore.Mvc.ViewResult object by specifying a model to
// be rendered by the view.
//
// Parameters:
// model:
// The model that is rendered by the view.
//
// Returns:
// The created Microsoft.AspNetCore.Mvc.ViewResult object for the response.
[NonAction]
public virtual ViewResult View(object model);
}
在这种情况下,只需将ControllerBase
更改为Controller
:
public class ProductController : Controller { }
此外,我看到您的结构包含Razor页面。当您使用返回视图(模型)
时,它将使用模型数据呈现Razor视图。请确保您的Razor视图名为ProductInfo.cshtml
,而不是Razor页面名为ProductInfo.cshtmlHi@Rena——是的,我已经这样做了,并且工作正常。还有一个问题是我的文件夹的命名法,因此影响了我的名称空间,引起了歧义