mp-main-v2/AppStart/TemplateViewLocationExpander.cs

using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.AspNetCore.Mvc.Razor;

namespace MySystem
{
    public class TemplateViewLocationExpander : IViewLocationExpander
    {
        public IEnumerable<string> ExpandViewLocations(ViewLocationExpanderContext context, IEnumerable<string> viewLocations)
        {
            /// <summary>
            /// view文件路径
            /// </summary>
            /// <value></value>
            string[] locations = {
                "/Areas/Admin/Views/Admin/{1}/{0}.cshtml",
                "/Areas/Admin/Views/Base/{1}/{0}.cshtml",
                "/Views/{1}/{0}.cshtml",
            };
            return locations.Union(viewLocations);
        }

        public void PopulateValues(ViewLocationExpanderContext context)
        {
            context.Values["template"] = context.ActionContext.RouteData.Values["Template"]?.ToString() ?? "Default";
        }
    }
}