add new sample

sample/Comet.Sample/Comparisons/Section5.cs

@@ -0,0 +1,68 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Microsoft.Maui.Graphics;
+
+/*
+ // Flutter only support if render
+class MyWidget extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      children: <Widget>[
+        if (someCondition == true)
+          Text('The condition is true!'),
+      ],
+    );
+  }
+}
+
+// Flutter render list
+class MyWidget extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      children: <Widget>[
+        if (someCondition == true) ...[
+          Text('Widget A'),
+          Text('Widget B'),
+          Text('Widget C'),
+        ],
+      ],
+    );
+  }
+}
+
+ */
+
+namespace Comet.Samples.Comparisons
+{
+	public class Section5 : View
+	{
+		bool showMore = true;
+		int[] nums = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
+		string fillColor = "Red";
+		[Body]
+		View body() => new VStack {
+				new Text("Hello Comet!"),
+				() => {
+					if(showMore)
+						return new Text("If condition is working");
+					else
+						return new Text("Else condition is working");
+				},
+				nums.Select(i => new Text($"Show rows {i}")),
+				showMore?new Text("Ternary is working"):null,
+				() => {
+					switch(fillColor)
+					{
+						case "Red":
+							return new ShapeView(new Rectangle().Fill(Colors.Red)).Frame(100, 60);
+						default:
+							return null;
+					}
+				}
+			};
+
+	}
+}

sample/Comet.Sample/Views/MainPage.cs

@@ -73,6 +73,7 @@ namespace Comet.Samples
 			new MenuItem("SwiftUI Tutorial Section 4b", ()=> new Section4b()),
 			new MenuItem("SwiftUI Tutorial Section 4c", ()=> new Section4c()),
 			new MenuItem("SwiftUI Tutorial Section 4d", ()=> new Section4c()),
+			new MenuItem("Compare with Flutter",() => new Section5()),
 			new MenuItem("DavidSample1",()=> new DavidSample1()),
 			new MenuItem("DavidSample1a",()=> new DavidSample1a()),
 			new MenuItem("DavidSample1b",()=> new DavidSample1b()),

src/Comet/Controls/ContainerView.cs

@@ -30,6 +30,12 @@ namespace Comet
 				foreach (var v in ieiv)
 					Add(v);
 			}
+			else if (obj is Func<View> func)
+			{
+				var view = func();
+				if (view != null)
+					Add(view);
+			}
 			else
 			{
 				throw new NotSupportedException("The object either needs to be a View, IView, or IEnumerable<IView>/IEnumerable<View>");