Update Tree View items in left menu demos (DevExpress#29990)

Author: GoodDayForSurf

apps/demos/menuMeta.json

@@ -5630,95 +5630,120 @@
         "Name": "Tree View",
         "Breadcrumb": true,
         "Equivalents": "TreeView, TreeList, dxTreeView, dx-tree-view",
-        "Demos": [
-          {
-            "Title": "Hierarchical Data Structure",
-            "Name": "HierarchicalDataStructure",
-            "Widget": "TreeView",
-            "MvcAdditionalFiles": [
-              "/Models/Product.cs",
-              "/Models/SampleData/TreeViewHierarchicalData.cs"
-            ],
-            "DemoType": "Web"
-          },
-          {
-            "Title": "Plain Data Structure",
-            "Name": "FlatDataStructure",
-            "DocUrl": "Guide/UI_Components/TreeView/Use_Plain_Data/",
-            "Widget": "TreeView",
-            "MvcAdditionalFiles": [
-              "/Models/Product.cs",
-              "/Models/SampleData/TreeViewPlainData.cs",
-              "/Controllers/ApiControllers/TreeViewPlainDataController.cs"
-            ],
-            "DemoType": "Web"
-          },
-          {
-            "Title": "Load Data on Demand",
-            "Name": "LoadDataOnDemand",
-            "Widget": "TreeView",
-            "Modules": "whatwg-fetch",
-            "MvcAdditionalFiles": [
-              "/Controllers/ApiControllers/TreeViewDataController.cs"
-            ],
-            "DemoType": "Web"
-          },
-          {
-            "Title": "Virtual Mode",
-            "Name": "VirtualMode",
-            "Widget": "TreeView",
-            "DemoType": "Web"
-          },
+        "Groups": [
           {
-            "Title": "Node Selection and Customization",
-            "Name": "ItemSelectionAndCustomization",
-            "DocUrl": "Guide/UI_Components/TreeView/Select_Nodes/",
-            "Widget": "TreeView",
-            "MvcAdditionalFiles": [
-              "/Models/TreeView/Employee.cs",
-              "/Models/SampleData/TreeViewHierarchicalDataForSelection.cs"
-            ],
-            "DemoType": "Web"
+            "Name": "Data Binding",
+            "Demos": [
+              {
+                "Title": "Hierarchical Data Structure",
+                "Name": "HierarchicalDataStructure",
+                "Widget": "TreeView",
+                "MvcAdditionalFiles": [
+                  "/Models/Product.cs",
+                  "/Models/SampleData/TreeViewHierarchicalData.cs"
+                ],
+                "DemoType": "Web"
+              },
+              {
+                "Title": "Plain Data Structure",
+                "Name": "FlatDataStructure",
+                "DocUrl": "Guide/UI_Components/TreeView/Use_Plain_Data/",
+                "Widget": "TreeView",
+                "MvcAdditionalFiles": [
+                  "/Models/Product.cs",
+                  "/Models/SampleData/TreeViewPlainData.cs",
+                  "/Controllers/ApiControllers/TreeViewPlainDataController.cs"
+                ],
+                "DemoType": "Web"
+              },
+              {
+                "Title": "Load Data on Demand",
+                "Name": "LoadDataOnDemand",
+                "Widget": "TreeView",
+                "Modules": "whatwg-fetch",
+                "MvcAdditionalFiles": [
+                  "/Controllers/ApiControllers/TreeViewDataController.cs"
+                ],
+                "DemoType": "Web"
+              },
+              {
+                "Title": "Virtual Mode",
+                "Name": "VirtualMode",
+                "Widget": "TreeView",
+                "DemoType": "Web"
+              }
+            ]
           },
           {
-            "Title": "Search",
-            "Name": "TreeViewWithSearchBar",
-            "Widget": "TreeView",
-            "MvcAdditionalFiles": [
-              "/Models/Product.cs",
-              "/Models/SampleData/TreeViewHierarchicalDataForSearch.cs"
-            ],
-            "DemoType": "Web"
+            "Name": "Selection and Customization",
+            "Demos": [
+              {
+                "Title": "Selection and Customization",
+                "Name": "ItemSelectionAndCustomization",
+                "DocUrl": "Guide/UI_Components/TreeView/Select_Nodes/",
+                "Widget": "TreeView",
+                "MvcAdditionalFiles": [
+                  "/Models/TreeView/Employee.cs",
+                  "/Models/SampleData/TreeViewHierarchicalDataForSelection.cs"
+                ],
+                "DemoType": "Web"
+              }
+            ]
           },
           {
-            "Title": "ContextMenu",
-            "Name": "ContextMenuIntegration",
-            "Widget": "TreeView",
-            "MvcAdditionalFiles": [
-              "/Models/Product.cs",
-              "/Models/SampleData/TreeViewHierarchicalDataForContextMenu.cs"
-            ],
-            "DemoType": "Web"
+            "Name": "Search",
+            "Demos": [
+              {
+                "Title": "Search",
+                "Name": "TreeViewWithSearchBar",
+                "Widget": "TreeView",
+                "MvcAdditionalFiles": [
+                  "/Models/Product.cs",
+                  "/Models/SampleData/TreeViewHierarchicalDataForSearch.cs"
+                ],
+                "DemoType": "Web"
+              }
+            ]
           },
           {
-            "Title": "Drag & Drop for Plain Data Structure",
-            "Name": "DragAndDropPlainDataStructure",
-            "Widget": "TreeView",
-            "MvcAdditionalFiles": [
-              "/Models/TreeView/FileSystemItem.cs",
-              "/Models/SampleData/TreeViewPlainDataForDragAndDrop.cs"
-            ],
-            "DemoType": "Web"
+            "Name": "ContextMenu",
+            "Demos": [
+              {
+                "Title": "ContextMenu",
+                "Name": "ContextMenuIntegration",
+                "Widget": "TreeView",
+                "MvcAdditionalFiles": [
+                  "/Models/Product.cs",
+                  "/Models/SampleData/TreeViewHierarchicalDataForContextMenu.cs"
+                ],
+                "DemoType": "Web"
+              }
+            ]
           },
           {
-            "Title": "Drag & Drop for Hierarchical Data Structure",
-            "Name": "DragAndDropHierarchicalDataStructure",
-            "Widget": "TreeView",
-            "MvcAdditionalFiles": [
-              "/Models/TreeView/FileSystemItem.cs",
-              "/Models/SampleData/TreeViewHierarchicalDataForDragAndDrop.cs"
-            ],
-            "DemoType": "Web"
+            "Name": "Drag & Drop",
+            "Demos": [
+              {
+                "Title": "Plain Data Structure",
+                "Name": "DragAndDropPlainDataStructure",
+                "Widget": "TreeView",
+                "MvcAdditionalFiles": [
+                  "/Models/TreeView/FileSystemItem.cs",
+                  "/Models/SampleData/TreeViewPlainDataForDragAndDrop.cs"
+                ],
+                "DemoType": "Web"
+              },
+              {
+                "Title": "Hierarchical Data Structure",
+                "Name": "DragAndDropHierarchicalDataStructure",
+                "Widget": "TreeView",
+                "MvcAdditionalFiles": [
+                  "/Models/TreeView/FileSystemItem.cs",
+                  "/Models/SampleData/TreeViewHierarchicalDataForDragAndDrop.cs"
+                ],
+                "DemoType": "Web"
+              }
+            ]
           }
         ]
       },