Merge pull request #3488 from umbraco/temp8-258-empty-trees-arrow

Adding a check to verify if there are any children which will resolve…

src/Umbraco.Web/Trees/ContentBlueprintTreeController.cs

@@ -33,6 +33,9 @@ namespace Umbraco.Web.Trees
             //this will load in a custom UI instead of the dashboard for the root node
             root.RoutePath = $"{Constants.Applications.Settings}/{Constants.Trees.ContentBlueprints}/intro";
 
+            //check if there are any content blueprints
+            root.HasChildren = Services.ContentService.GetBlueprintsForContentTypes().Any();
+
             return root;
         }
         protected override TreeNodeCollection GetTreeNodes(string id, FormDataCollection queryStrings)

src/Umbraco.Web/Trees/FileSystemTreeController.cs

@@ -75,6 +75,14 @@ namespace Umbraco.Web.Trees
             return nodes;
         }
 
+        protected override TreeNode CreateRootNode(FormDataCollection queryStrings)
+        {
+            var root = base.CreateRootNode(queryStrings);
+            //check if there are any children
+            root.HasChildren = GetTreeNodes(Constants.System.Root.ToInvariantString(), queryStrings).Any();
+            return root;
+        }
+
         protected virtual MenuItemCollection GetMenuForRootNode(FormDataCollection queryStrings)
         {
             var menu = new MenuItemCollection();

src/Umbraco.Web/Trees/MemberTypeTreeController.cs

@@ -7,11 +7,18 @@ using Umbraco.Web.WebApi.Filters;
 
 namespace Umbraco.Web.Trees
 {
-    [CoreTree(TreeGroup =Constants.Trees.Groups.Settings)]
+    [CoreTree(TreeGroup = Constants.Trees.Groups.Settings)]
     [UmbracoTreeAuthorize(Constants.Trees.MemberTypes)]
     [Tree(Constants.Applications.Settings, Constants.Trees.MemberTypes, null, sortOrder: 2)]
     public class MemberTypeTreeController : MemberTypeAndGroupTreeControllerBase
     {
+        protected override TreeNode CreateRootNode(FormDataCollection queryStrings)
+        {
+            var root = base.CreateRootNode(queryStrings);
+            //check if there are any member types
+            root.HasChildren = Services.MemberTypeService.GetAll().Any();
+            return root;
+        }
         protected override IEnumerable<TreeNode> GetTreeNodesFromService(string id, FormDataCollection queryStrings)
         {
             return Services.MemberTypeService.GetAll()

src/Umbraco.Web/Trees/TemplatesTreeController.cs

@@ -25,6 +25,14 @@ namespace Umbraco.Web.Trees
     [CoreTree(TreeGroup = Constants.Trees.Groups.Templating)]
     public class TemplatesTreeController : TreeController, ISearchableTree
     {
+        protected override TreeNode CreateRootNode(FormDataCollection queryStrings)
+        {
+            var root = base.CreateRootNode(queryStrings);
+            //check if there are any templates
+            root.HasChildren = Services.FileService.GetTemplates(-1).Any();
+            return root;
+        }
+
         /// <summary>
         /// The method called to render the contents of the tree structure
         /// </summary>