Define a _NorthwindLayout so that Northwind.css is included in pages …

…using GridPage extensions

src/Serenity.Demo.Northwind/Areas/Serenity.Demo.Northwind/_NorthwindLayout.cshtml

@@ -0,0 +1,6 @@
+@{
+    Layout = "_Layout";
+}
+
+@Html.Stylesheet("~/Serenity.Demo.Northwind/index.css")
+@RenderBody()

src/Serenity.Demo.Northwind/Imports/MVC/MVC.cs

@@ -3,6 +3,7 @@ namespace Serenity.Demo.Northwind.MVC;
 
 public static class Views
 {
+    public const string _NorthwindLayout = "~/Areas/Serenity.Demo.Northwind/_NorthwindLayout.cshtml";
     public static class Order
     {
         public const string OrderDetailReport = "~/Areas/Serenity.Demo.Northwind/Order/OrderDetailReport.cshtml";

src/Serenity.Demo.Northwind/Modules/Category/CategoryPage.cs

@@ -8,6 +8,6 @@ public class CategoryPage : Controller
     [Route("Northwind/Category")]
     public ActionResult Index()
     {
-        return this.GridPage<CategoryRow>(ESM.CategoryPage);
+        return this.GridPage<CategoryRow>(ESM.CategoryPage, layout: MVC.Views._NorthwindLayout);
     }
 }

src/Serenity.Demo.Northwind/Modules/Customer/CustomerPage.cs

@@ -8,7 +8,7 @@ public class CustomerPage : Controller
     [Route("Northwind/Customer")]
     public ActionResult Index()
     {
-        return this.GridPage<CustomerRow>(ESM.CustomerPage);
+        return this.GridPage<CustomerRow>(ESM.CustomerPage, layout: MVC.Views._NorthwindLayout);
     }
 }
 

src/Serenity.Demo.Northwind/Modules/Region/RegionPage.cs

@@ -8,6 +8,6 @@ public class RegionPage : Controller
     [Route("Northwind/Region")]
     public ActionResult Index()
     {
-        return this.GridPage<RegionRow>(ESM.RegionPage);
+        return this.GridPage<RegionRow>(ESM.RegionPage, layout: MVC.Views._NorthwindLayout);
     }
 }

src/Serenity.Demo.Northwind/Modules/Shipper/ShipperPage.cs

@@ -8,6 +8,6 @@ public class ShipperPage : Controller
     [Route("Northwind/Shipper")]
     public ActionResult Index()
     {
-        return this.GridPage<ShipperRow>(ESM.ShipperPage);
+        return this.GridPage<ShipperRow>(ESM.ShipperPage, layout: MVC.Views._NorthwindLayout);
     }
 }

src/Serenity.Demo.Northwind/Modules/Supplier/SupplierPage.cs

@@ -8,6 +8,6 @@ public class SupplierPage : Controller
     [Route("Northwind/Supplier")]
     public ActionResult Index()
     {
-        return this.GridPage<SupplierRow>(ESM.SupplierPage);
+        return this.GridPage<SupplierRow>(ESM.SupplierPage, layout: MVC.Views._NorthwindLayout);
     }
 }

src/Serenity.Demo.Northwind/Modules/Territory/TerritoryPage.cs

@@ -8,6 +8,6 @@ public class TerritoryPage : Controller
     [Route("Northwind/Territory")]
     public ActionResult Index()
     {
-        return this.GridPage<TerritoryRow>(ESM.TerritoryPage);
+        return this.GridPage<TerritoryRow>(ESM.TerritoryPage, layout: MVC.Views._NorthwindLayout);
     }
 }