POC code for the buttons demo component.

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Shared.Demo/Views/Components/Themes/Shared/Demos/ButtonsDemo/ButtonsDemoViewComponent.cs

@@ -1,14 +1,73 @@
-using Microsoft.AspNetCore.Mvc;
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.FileProviders;
 using Volo.Abp.AspNetCore.Mvc.UI.Widgets;
+using Volo.Abp.VirtualFileSystem;
 
 namespace Volo.Abp.AspNetCore.Mvc.UI.Theme.Shared.Demo.Views.Components.Themes.Shared.Demos.ButtonsDemo
 {
     [Widget]
     public class ButtonsDemoViewComponent : AbpViewComponent
     {
+        public const string ViewPath = "/Views/Components/Themes/Shared/Demos/ButtonsDemo/Default.cshtml";
+
+        private const string DemoSectionOpeningTag = "<DemoSection:";
+        private const string DemoSectionClosingTag = "</DemoSection:";
+
+        private readonly IVirtualFileProvider _virtualFileProvider;
+
+        public ButtonsDemoViewComponent(IVirtualFileProvider virtualFileProvider)
+        {
+            _virtualFileProvider = virtualFileProvider;
+        }
+
         public IViewComponentResult Invoke()
         {
-            return View("/Views/Components/Themes/Shared/Demos/ButtonsDemo/Default.cshtml");
+            var model = new DemoViewModel();
+
+            var viewFileInfo = _virtualFileProvider.GetFileInfo(ViewPath);
+            var viewFileContent = viewFileInfo.ReadAsString();
+
+            var lines = viewFileContent.SplitToLines();
+
+            StringBuilder sb = null;
+
+            foreach (var line in lines)
+            {
+                if (line.Contains(DemoSectionOpeningTag))
+                {
+                    sb = new StringBuilder();
+                }
+                else if (line.Contains(DemoSectionClosingTag, StringComparison.InvariantCultureIgnoreCase))
+                {
+                    var demoName = line.Substring(line.IndexOf(DemoSectionClosingTag, StringComparison.InvariantCultureIgnoreCase) + DemoSectionClosingTag.Length);
+                    if (demoName.Contains(">"))
+                    {
+                        demoName = demoName.Left(demoName.IndexOf(">", StringComparison.InvariantCultureIgnoreCase));
+                    }
+
+                    model.SourceCodes[demoName] = sb.ToString();
+                    sb = new StringBuilder();
+                }
+                else if(sb != null)
+                {
+                    sb.AppendLine(line);
+                }
+            }
+
+            return View(ViewPath, model);
+        }
+    }
+
+    public class DemoViewModel
+    {
+        public Dictionary<string, string> SourceCodes { get; set; }
+
+        public DemoViewModel()
+        {
+            SourceCodes = new Dictionary<string, string>();
         }
     }
 }

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Shared.Demo/Views/Components/Themes/Shared/Demos/ButtonsDemo/Default.cshtml

@@ -1,7 +1,17 @@
-<h2>
+@model Volo.Abp.AspNetCore.Mvc.UI.Theme.Shared.Demo.Views.Components.Themes.Shared.Demos.ButtonsDemo.DemoViewModel
-    Basic Buttons
+<div class="abp-theme-demo-section">
-</h2>
+    <h2>
-<div>
+        Basic Buttons
-    <abp-button button-type="Primary" text="Primary button" />
+    </h2>
-    <abp-button button-type="Secondary" text="Secondary button" />
+    <div class="abp-theme-demo-section-body">
+        <!-- <DemoSection:Buttons.Basic> -->
+        <abp-button button-type="Primary" text="Primary button" />
+        <abp-button button-type="Secondary" text="Secondary button" />
+        <!-- </DemoSection:Buttons.Basic> -->
+    </div>
+    <div>
+<pre>
+@Model.SourceCodes["Buttons.Basic"]
+</pre>
+    </div>
 </div>