Question

我尝试在我的asp.net核心应用程序中自定义引擎视图。所以我添加了这个片段：

public void ConfigureServices(IServiceCollection services)
        {
            // Add framework services.
            services.AddApplicationInsightsTelemetry(Configuration);
            services.AddMvc();

            var webRootPath = _env.WebRootPath;
            string[] nwpath = webRootPath.Split('\\');
            string s = "";
            for (int i = 0; i < nwpath.Length - 2; i++)
            {
                if (i == nwpath.Length - 3) s += nwpath[i];
                else s += nwpath[i] + "\\";
            }

            var webSrcPath = s + @"\Application1";

            ViewEngines.Engines.Clear();
            ViewEngines.Engines.Add(new CustomViewEngine(webSrcPath));

        }

CustomViewEngine

public class CustomViewEngine : System.Web.Mvc.RazorViewEngine
{


    public CustomViewEngine(string NewPath)
    {
        var viewLocations = new[] {
        "~/Views/{1}/{0}.cshtml", 
        "~/Views1/Shared/{0}.cshtml", 
        Path.Combine(NewPath,"Views/{1}/{0}.cshtml"), 
        Path.Combine(NewPath,"Views/Shared/{0}.cshtml") 

        // etc
    };

        this.PartialViewLocationFormats = viewLocations;
        this.ViewLocationFormats = viewLocations;

    }


}

当我运行我的应用程序时，我得到了这个着名的例外：

我忘了一些事吗？因为看起来这个功能

Microsoft.AspNetCore.Mvc.Razor.RazorView.GetLayoutPage（ViewContext context，string repeatingFilePath，string layoutPath）

未被覆盖

我该如何解决这个问题？

Answer 1

您正在使用RazorViewEngine作为自定义视图引擎的基类，而在注册viewlocations视图的代码中，您指定了用于WebForm视图引擎的扩展.aspx，将您的基类更改为WebFormViewEngine或将所有路径的视图位置更改为.cshtml

所以要么改变你的类继承自WebFormViewEngine：

public class CustomViewEngine : WebFormViewEngine
    { 
        public CustomViewEngine(string NewPath)
        {
            var viewLocations = new[] {
            "~/Views1/{1}/{0}.aspx",
            "~/Views1/{1}/{0}.ascx",
            "~/Views1/Shared/{0}.aspx",
            "~/Views1/Shared/{0}.ascx" ,
            Path.Combine(NewPath,"Views/{1}/{0}.aspx"),
             Path.Combine(NewPath,"Views/{1}/{0}.ascx"),
            Path.Combine(NewPath,"Views/Shared/{0}.aspx"),
            Path.Combine(NewPath,"Views/Shared/{0}.ascx")

            // etc
        };

或使用razor视图文件扩展名注册路径 csthml ：

    public class CustomViewEngine : WebFormViewEngine
    { 
        public CustomViewEngine(string NewPath)
        {
            var viewLocations = new[] {
            "~/Views1/{1}/{0}.cshtml",
            "~/Views1/Shared/{0}.cshtml",
            Path.Combine(NewPath,"Views/{1}/{0}.cshtml"),
            Path.Combine(NewPath,"Views/Shared/{0}.cshtml"),

        };

覆盖GetLayoutPage函数

1 个答案: