New feature Expand/Collapse all upgrd SPFx 1.15.0

samples/react-taxonomy-file-explorer/.eslintrc.js

@@ -0,0 +1,10 @@
+require('@rushstack/eslint-config/patch/modern-module-resolution');
+
+module.exports = {
+  extends: ['@microsoft/eslint-config-spfx/lib/profiles/react'],
+  parserOptions: { tsconfigRootDir: __dirname },
+  rules: {
+    "@typescript-eslint/typedef": "off",
+    "@microsoft/spfx/no-async-await": "off"
+  }
+};

samples/react-taxonomy-file-explorer/.gitignore

@@ -1,4 +1,35 @@
-# .CER Certificates
+# Logs
-*.cer
+logs
-# .PEM Certificates
+*.log
-*.pem
+npm-debug.log*
+
+# Dependency directories
+node_modules
+
+# Build generated files
+dist
+lib
+release
+solution
+temp
+*.sppkg
+
+.heft
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# OSX
+.DS_Store
+
+# Visual Studio files
+.ntvs_analysis.dat
+.vs
+bin
+obj
+
+# Resx Generated Code
+*.resx.ts
+
+# Styles Generated Code
+*.scss.ts

samples/react-taxonomy-file-explorer/.yo-rc.json

@@ -3,7 +3,7 @@
     "plusBeta": false,
     "isCreatingSolution": true,
     "environment": "spo",
-    "version": "1.13.1",
+    "version": "1.15.0",
     "libraryName": "react-taxonomy-file-explorer",
     "libraryId": "5697a573-1bd1-4ff3-96f1-82263c8eb008",
     "packageManager": "npm",

samples/react-taxonomy-file-explorer/README.md

@@ -22,12 +22,15 @@ Copy:
 
 ![Copying the file to a new one with (only) the target term in the managed metadata column (Copy)](./assets/05Copy.gif)
 
-For further details see the author's [blog post](https://mmsharepoint.wordpress.com/2021/12/23/a-sharepoint-file-explorer-based-on-managed-metadata-and-spfx/)
+[UPDATE] Collapse and expand all:
 
+![Collapse and expand all](./assets/ExpandCollapseAll.gif)
+
+For further details see the author's [blog post](https://mmsharepoint.wordpress.com/2021/12/23/a-sharepoint-file-explorer-based-on-managed-metadata-and-spfx/)
 
 ## Compatibility
 
-![SPFx 1.13.0](https://img.shields.io/badge/SPFx-1.13.0-green.svg)
+![SPFx 1.15.0](https://img.shields.io/badge/version-1.15-green.svg)
 ![Node.js v14 | v12 | v10](https://img.shields.io/badge/Node.js-v14%20%7C%20v12%20%7C%20v10-green.svg) 
 ![Compatible with SharePoint Online](https://img.shields.io/badge/SharePoint%20Online-Compatible-green.svg)
 ![Does not work with SharePoint 2019](https://img.shields.io/badge/SharePoint%20Server%202019-Incompatible-red.svg "SharePoint Server 2019 requires SPFx 1.4.1 or lower")
@@ -36,7 +39,6 @@ For further details see the author's [blog post](https://mmsharepoint.wordpress.
 ![Hosted Workbench Compatible](https://img.shields.io/badge/Hosted%20Workbench-Compatible-green.svg)
 ![Compatible with Remote Containers](https://img.shields.io/badge/Remote%20Containers-Compatible-green.svg)
 
-
 ## Applies to
 
 - [SharePoint Framework](https://aka.ms/spfx)
@@ -60,6 +62,7 @@ react-taxonomy-file-explorer| [Markus Moeller](https://github.com/mmsharepoint)
 Version|Date|Comments
 -------|----|--------
 1.0|December 26, 2021|Initial release
+1.1|July 16, 2021|Added expand/collapse all, upgraded to SPFx 1.15.0, upgraded to PnPJS V3.5.1
 
 
 ## Minimal Path to Awesome

samples/react-taxonomy-file-explorer/config/package-solution.json

@@ -7,12 +7,31 @@
     "includeClientSideAssets": true,
     "isDomainIsolated": false,
     "developer": {
-      "name": "",
+      "name": "Markus Moeller",
       "websiteUrl": "",
       "privacyUrl": "",
       "termsOfUseUrl": "",
       "mpnId": "Undefined-1.13.1"
-    }
+    },
+    "metadata": {
+      "shortDescription": {
+        "default": "react-taxonomy-file-explorer description"
+      },
+      "longDescription": {
+        "default": "react-taxonomy-file-explorer description"
+      },
+      "screenshotPaths": [],
+      "videoUrl": "",
+      "categories": []
+    },
+    "features": [
+      {
+        "title": "react-taxonomy-file-explorer Feature",
+        "description": "The feature that activates elements of the react-taxonomy-file-explorer solution.",
+        "id": "9804fbff-b443-42e1-86f4-fc261980d916",
+        "version": "1.0.0.0"
+      }
+    ]
   },
   "paths": {
     "zippedPackage": "solution/react-taxonomy-file-explorer.sppkg"

samples/react-taxonomy-file-explorer/package.json

@@ -9,26 +9,32 @@
     "test": "gulp test"
   },
   "dependencies": {
-    "@fluentui/react-file-type-icons": "^8.5.7",
+    "@fluentui/react-file-type-icons": "^8.6.11",
-    "@microsoft/sp-core-library": "1.13.1",
+    "@microsoft/sp-core-library": "1.15.0",
-    "@microsoft/sp-lodash-subset": "1.13.1",
+    "@microsoft/sp-lodash-subset": "1.15.0",
-    "@microsoft/sp-office-ui-fabric-core": "1.13.1",
+    "@microsoft/sp-office-ui-fabric-core": "1.15.0",
-    "@microsoft/sp-property-pane": "1.13.1",
+    "@microsoft/sp-property-pane": "1.15.0",
-    "@microsoft/sp-webpart-base": "1.13.1",
+    "@microsoft/sp-webpart-base": "1.15.0",
-    "@pnp/sp": "^2.11.0",
+    "@pnp/sp": "^3.5.1",
-    "office-ui-fabric-react": "7.174.1",
+    "office-ui-fabric-react": "7.185.7",
     "react": "16.13.1",
-    "react-dom": "16.13.1"
+    "react-dom": "16.13.1",
+    "tslib": "2.3.1"
   },
   "devDependencies": {
+    "@microsoft/eslint-config-spfx": "1.15.0",
+    "@microsoft/eslint-plugin-spfx": "1.15.0",
+    "@microsoft/rush-stack-compiler-3.9": "0.4.47",
+    "@microsoft/rush-stack-compiler-4.5": "0.2.2",
+    "@microsoft/sp-build-web": "1.15.0",
+    "@microsoft/sp-module-interfaces": "1.15.0",
+    "@rushstack/eslint-config": "2.5.1",
     "@types/react": "16.9.51",
     "@types/react-dom": "16.9.8",
-    "@microsoft/sp-build-web": "1.13.1",
+    "@types/webpack-env": "1.15.2",
-    "@microsoft/sp-tslint-rules": "1.13.1",
+    "ajv": "6.12.5",
-    "@microsoft/sp-module-interfaces": "1.13.1",
+    "eslint": "8.7.0",
-    "@microsoft/rush-stack-compiler-3.9": "0.4.47",
+    "eslint-plugin-react-hooks": "4.3.0",
-    "gulp": "~4.0.2",
+    "gulp": "~4.0.2"
-    "ajv": "~6.12.3",
-    "@types/webpack-env": "1.13.1"
   }
 }

samples/react-taxonomy-file-explorer/src/services/SPService.ts

@@ -1,20 +1,35 @@
-import { sp } from "@pnp/sp";
+import { ServiceScope } from "@microsoft/sp-core-library";
+import { PageContext } from "@microsoft/sp-page-context";
+import { SPFI, spfi, SPFx } from "@pnp/sp";
+import "@pnp/sp/webs";
+import "@pnp/sp/lists";
+import "@pnp/sp/items";
+import "@pnp/sp/items/get-all";
+import "@pnp/sp/files";
+import "@pnp/sp/folders";
+
 import { IFileItem } from "../model/IFileItem";
+import { IItem } from "@pnp/sp/items";
 
 export class SPService {
-  private listName: string;
+  private _listName: string;
-  private fieldName: string;
+  private _fieldName: string;
+  private _sp: SPFI;
 
-  constructor (listname: string, fieldname: string) {
+  public constructor (serviceScope: ServiceScope, listname: string, fieldname: string) {
-    this.listName = listname;
+    this._listName = listname;
-    this.fieldName = fieldname;
+    this._fieldName = fieldname;
+    serviceScope.whenFinished(() => {
+      const pageContext: PageContext = serviceScope.consume(PageContext.serviceKey);
+      this._sp = spfi().using(SPFx({ pageContext }));
+    });
   }
 
   public async getItems (termsetID: string): Promise<IFileItem[]> {
-    const items: any[] = await sp.web.lists.getByTitle(this.listName).items.select('Id', this.fieldName).expand('File').get();
+    const items: any[] = await this._sp.web.lists.getByTitle(this._listName).items.select('Id', this._fieldName).expand('File').getAll();
     const files: IFileItem[] = [];
     items.forEach(i => {
-      const nameparts = i.File.Name.split('.');
+      const nameparts: string[] = i.File.Name.split('.');
       const file: IFileItem = {
         title: i.File.Name,
         extension: nameparts[nameparts.length - 1],
@@ -23,10 +38,10 @@ export class SPService {
         taxValue: [""],
         url: i.File.LinkingUrl
       };
-      if (Array.isArray(i[this.fieldName])) {
+      if (Array.isArray(i[this._fieldName])) {
         const termguids: string[] = [];
         const taxvalues: string[] = [];
-        i[this.fieldName].forEach(f => {
+        i[this._fieldName].forEach(f => {
           termguids.push(f.TermGuid.toLowerCase());
           taxvalues.push(`${f.Label}|${f.TermGuid}`);
         });
@@ -34,21 +49,21 @@ export class SPService {
         file.taxValue = taxvalues;
       }
       else {
-        file.termGuid = i[this.fieldName] ? [i[this.fieldName].TermGuid.toLowerCase()]:[""];
+        file.termGuid = i[this._fieldName] ? [i[this._fieldName].TermGuid.toLowerCase()]:[""];
-        file.taxValue = i[this.fieldName] ? [`${i[this.fieldName].Label.toLowerCase()}|${i[this.fieldName].TermGuid.toLowerCase()}`]:[""];
+        file.taxValue = i[this._fieldName] ? [`${i[this._fieldName].Label.toLowerCase()}|${i[this._fieldName].TermGuid.toLowerCase()}`]:[""];
       }
       files.push(file);
     });
     return files;
   }
 
-  public async updateTaxonomyItemByAdd (file: IFileItem, fieldName: string, newTaxonomyValue: string) {   
+  public async updateTaxonomyItemByAdd(file: IFileItem, fieldName: string, newTaxonomyValue: string): Promise<void> {   
     const itemID: number = parseInt(file.id);
     let fieldValues = file.taxValue.join(';');
     fieldValues += `;${newTaxonomyValue}`;
 
     // https://blog.aterentiev.com/how-to-easily-update-managed-metadata
-    await sp.web.lists.getByTitle(this.listName).items.getById(itemID).validateUpdateListItem([{
+    await this._sp.web.lists.getByTitle(this._listName).items.getById(itemID).validateUpdateListItem([{
       ErrorMessage: null,
       FieldName: fieldName,
       FieldValue: fieldValues,
@@ -56,10 +71,10 @@ export class SPService {
     }]);
   }
 
-  public async updateTaxonomyItemByReplace (file: IFileItem, fieldName: string, newTaxonomyValue: string) {   
+  public async updateTaxonomyItemByReplace (file: IFileItem, fieldName: string, newTaxonomyValue: string): Promise<void> {   
     const itemID: number = parseInt(file.id);
 
-    await sp.web.lists.getByTitle(this.listName).items.getById(itemID).validateUpdateListItem([{
+    await this._sp.web.lists.getByTitle(this._listName).items.getById(itemID).validateUpdateListItem([{
       ErrorMessage: null,
       FieldName: fieldName,
       FieldValue: newTaxonomyValue,
@@ -69,16 +84,15 @@ export class SPService {
 
   public async newTaxonomyItemByCopy (file: IFileItem, fieldName: string, newTaxonomyValue: string): Promise<IFileItem> {
     const fileUrl: URL = new URL(file.url);
-    const currentFileNamePart = file.title.replace(`.${file.extension}`, '');
+    const currentFileNamePart: string = file.title.replace(`.${file.extension}`, '');
-    const newFilename = `${currentFileNamePart}_Copy.${file.extension}`;
+    const newFilename: string = `${currentFileNamePart}_Copy.${file.extension}`;
-    const destinationUrl = decodeURI(fileUrl.pathname).replace(file.title, newFilename);
+    const destinationUrl: string = decodeURI(fileUrl.pathname).replace(file.title, newFilename);
-    await sp.web.getFileByServerRelativePath(decodeURI(fileUrl.pathname)).copyByPath(destinationUrl, false, true);
+    await this._sp.web.getFileByServerRelativePath(decodeURI(fileUrl.pathname)).copyByPath(destinationUrl, false, true);
-    const newFileItemPromise = await sp.web.getFileByServerRelativePath(destinationUrl).getItem();
+    const newFileItemPromise: IItem = await this._sp.web.getFileByServerRelativePath(destinationUrl).getItem();
-    const newFileItem = await newFileItemPromise.get();
+    const newFileItem = await newFileItemPromise.file.getItem<{ Id: number }>("Id");
-    console.log(newFileItem);
+    const itemID: number = newFileItem.Id;
-    const itemID: number = parseInt(newFileItem.Id);
 
-    await sp.web.lists.getByTitle(this.listName).items.getById(itemID).validateUpdateListItem([{
+    await this._sp.web.lists.getByTitle(this._listName).items.getById(itemID).validateUpdateListItem([{
       ErrorMessage: null,
       FieldName: fieldName,
       FieldValue: newTaxonomyValue,
@@ -94,4 +108,31 @@ export class SPService {
     };
     return newFile;
   }
+
+  public async newTaxonomyItemByUpload (file: any, fieldName: string, newTaxonomyValue: string): Promise<IFileItem> {
+    const libraryRoot = await this._sp.web.lists.getByTitle(this._listName).rootFolder();
+    // Assuming small file size, otherwise use chunks
+    const result = await this._sp.web.getFolderByServerRelativePath(libraryRoot.ServerRelativeUrl).files.addUsingPath(file.name, file, { Overwrite: true });
+    const fileNameParts: string[] = result.data.Name.split('.');
+    const newFileItemPromise = await this._sp.web.getFileByServerRelativePath(result.data.ServerRelativeUrl).getItem();
+    const newFileItem = await newFileItemPromise.file.getItem<{ Id: number }>("Id");
+
+    const itemID: number = newFileItem.Id;
+    await this._sp.web.lists.getByTitle(this._listName).items.getById(itemID).validateUpdateListItem([{
+      ErrorMessage: null,
+      FieldName: fieldName,
+      FieldValue: newTaxonomyValue,
+      HasException: false
+    }]);
+
+    const newFile: IFileItem = {
+      extension: fileNameParts[fileNameParts.length - 1],
+      id: itemID.toString(),
+      taxValue: [newTaxonomyValue],
+      termGuid: [newTaxonomyValue.split('|')[1]],
+      title: file.name,
+      url: result.data.ServerRelativeUrl
+    };
+    return newFile;
+  }
 }

samples/react-taxonomy-file-explorer/src/services/TaxonomyService.ts

@@ -1,29 +1,42 @@
-import { sp } from "@pnp/sp";
+import { ServiceScope } from "@microsoft/sp-core-library";
-import { IOrderedTermInfo } from "@pnp/sp/taxonomy";
+import { PageContext } from "@microsoft/sp-page-context";
+import { SPFI, spfi, SPFx } from "@pnp/sp";
+import "@pnp/sp/taxonomy";
+import { IOrderedTermInfo, ITermInfo } from "@pnp/sp/taxonomy";
+import "@pnp/sp/fields";
 import { IFileItem } from "../model/IFileItem";
 import { ITermNode } from "../model/ITermNode";
 
 export class TaxonomyService {
+  private _sp: SPFI;
+  
+  public constructor (serviceScope: ServiceScope) {
+    serviceScope.whenFinished(() => {
+      const pageContext: PageContext = serviceScope.consume(PageContext.serviceKey);
+      this._sp = spfi().using(SPFx({ pageContext }));
+    });
+  }
+
   public async getTermsetInfo (fieldName: string): Promise<string> {
-    const mmFieldInfo = await sp.web.fields.getByInternalNameOrTitle(fieldName).get();
+    const mmFieldInfo = await this._sp.web.fields.getByInternalNameOrTitle(fieldName)();
     const parser = new DOMParser();
     const xmlField = parser.parseFromString(mmFieldInfo.SchemaXml, "text/xml");
     const properties = xmlField.getElementsByTagName("ArrayOfProperty")[0].childNodes;
     let termsetID: string = "";
     properties.forEach(prop => {
-      if (prop.childNodes[0].textContent == "TermSetId") {
+      if (prop.childNodes[0].textContent === "TermSetId") {
         termsetID = prop.childNodes[1].textContent;
       }
     });
     return termsetID;
   }
 
-  public async getTermset (termsetID: string) {
+  public async getTermset(termsetID: string): Promise<ITermNode[]> {
     // list all the terms available in this term set by term set id
-    const termset: IOrderedTermInfo[] = await sp.termStore.sets.getById(termsetID).getAllChildrenAsOrderedTree();
+    const termset: IOrderedTermInfo[] = await this._sp.termStore.sets.getById(termsetID).getAllChildrenAsOrderedTree();
     const termnodes: ITermNode[] = [];
     termset.forEach(async ti => {
-      const tn = this.getTermnode(ti);
+      const tn = this._getTermnode(ti);
       termnodes.push(tn);
     });
     return termnodes;
@@ -31,23 +44,23 @@ export class TaxonomyService {
 
   public incorporateFiles (terms: ITermNode[], files: IFileItem[]): ITermNode[] {
     terms.forEach(term => {
-      term = this.incorporateFilesIntoTerm(term, files);
+      term = this._incorporateFilesIntoTerm(term, files);
     });
     return terms;
   }
 
-  private getTermnode (term: IOrderedTermInfo): ITermNode {
+  private _getTermnode (term: ITermInfo): ITermNode {
     const node: ITermNode = {
       guid: term.id,
       childDocuments: 0,
-      name: term.defaultLabel,
+      name: term.labels.filter(i => i.isDefault === true)[0].name,
       children: [],
       subFiles: []
     };
     if (term.childrenCount > 0) {
       const ctnodes: ITermNode[] = [];
       term.children.forEach(ct => {
-        const ctnode: ITermNode = this.getTermnode(ct);
+        const ctnode: ITermNode = this._getTermnode(ct);
         node.childDocuments += ctnode.childDocuments;
         ctnodes.push(ctnode);
       });
@@ -56,12 +69,12 @@ export class TaxonomyService {
     return node;
   }
 
-  private incorporateFilesIntoTerm (term: ITermNode, files: IFileItem[]): ITermNode {
+  private _incorporateFilesIntoTerm (term: ITermNode, files: IFileItem[]): ITermNode {
     term.childDocuments = 0;
     term.subFiles = [];
     if (term.children.length > 0) {
       term.children.forEach(ct => {
-        ct = this.incorporateFilesIntoTerm(ct, files);
+        ct = this._incorporateFilesIntoTerm(ct, files);
         term.childDocuments += ct.childDocuments;
       });
     }

samples/react-taxonomy-file-explorer/src/webparts/taxonomyFileExplorer/TaxonomyFileExplorerWebPart.manifest.json

@@ -14,7 +14,7 @@
   "requiresCustomScript": false,
   "supportedHosts": ["SharePointWebPart", "TeamsPersonalApp", "TeamsTab", "SharePointFullPage"],
   "supportsThemeVariants": true,
-
+  "hiddenFromToolbox": false,
   "preconfiguredEntries": [{
     "groupId": "5c03119e-3074-46fd-976b-c60198311f70", // Other
     "group": { "default": "Other" },

samples/react-taxonomy-file-explorer/src/webparts/taxonomyFileExplorer/TaxonomyFileExplorerWebPart.ts

@@ -5,7 +5,6 @@ import {
   IPropertyPaneConfiguration,
   PropertyPaneTextField
 } from '@microsoft/sp-property-pane';
-import { sp } from "@pnp/sp/presets/all";
 import { BaseClientSideWebPart } from '@microsoft/sp-webpart-base';
 
 import * as strings from 'TaxonomyFileExplorerWebPartStrings';
@@ -18,18 +17,11 @@ export interface ITaxonomyFileExplorerWebPartProps {
 }
 
 export default class TaxonomyFileExplorerWebPart extends BaseClientSideWebPart<ITaxonomyFileExplorerWebPartProps> {
-  protected onInit(): Promise<void> {
-    return super.onInit().then(_ => {
-      sp.setup({
-        spfxContext: this.context
-      });
-    });
-  }
-
   public render(): void {
     const element: React.ReactElement<ITaxonomyFileExplorerProps> = React.createElement(
       TaxonomyFileExplorer,
       {
+        serviceScope: this.context.serviceScope,
         fieldName: this.properties.fieldName,
         listName: this.properties.listName
       }

samples/react-taxonomy-file-explorer/src/webparts/taxonomyFileExplorer/components/FileLabel.tsx

@@ -7,9 +7,9 @@ import { IFileLabelProps } from './IFileLabelProps';
 initializeFileTypeIcons(undefined);
 
 export const FileLabel: React.FC<IFileLabelProps> = (props) => {
-  const drag = (ev) => {
+  const drag = React.useCallback((ev)=> {
     ev.dataTransfer.setData("text/plain", JSON.stringify(props.file));
-  };
+  }, [props.file]);
 
   return (
     <li className={styles.fileLabel} draggable={true} onDragStart={drag}>

samples/react-taxonomy-file-explorer/src/webparts/taxonomyFileExplorer/components/ITaxonomyFileExplorerProps.ts

@@ -1,4 +1,7 @@
+import { ServiceScope } from "@microsoft/sp-core-library";
+
 export interface ITaxonomyFileExplorerProps {
+  serviceScope: ServiceScope;
   fieldName: string;
   listName: string;
 }

samples/react-taxonomy-file-explorer/src/webparts/taxonomyFileExplorer/components/ITermLabelProps.ts

@@ -4,9 +4,12 @@ import { ITermNode } from "../../../model/ITermNode";
 export interface ITermLabelProps {
     node: ITermNode;
     selectedNode: string;
+    collapseAll: boolean;
+    expandAll: boolean;
     renderFiles: (files: IFileItem[]) => void;
     resetChecked: (s: string) => void;
     addTerm: (file: IFileItem, newValue: string) => void;
     replaceTerm: (file: IFileItem, newValue: string) => void;
     copyFile: (file: IFileItem, newValue: string) => void;
+    uploadFile: (file: any, newValue: string) => void;
 }

samples/react-taxonomy-file-explorer/src/webparts/taxonomyFileExplorer/components/TaxonomyFileExplorer.module.scss

@@ -10,14 +10,17 @@
   .row {
     @include ms-Grid-row;
     color: "[theme: themePrimary, default: #0078d7]";
-    padding: 20px;
+    padding: 8px 20px;
   }
 
   .column {
     @include ms-Grid-col;
     @include ms-lg6;
   }
-  
+  .icon {
+    margin-right: 6px;
+    cursor: pointer;
+  }
   ul {
     list-style: none;
     padding-inline-start: 0px;

samples/react-taxonomy-file-explorer/src/webparts/taxonomyFileExplorer/components/TaxonomyFileExplorer.tsx

@@ -7,6 +7,7 @@ import { TaxonomyService } from '../../../services/TaxonomyService';
 import { SPService } from '../../../services/SPService';
 import { FileLabel } from './FileLabel';
 import { TermLabel } from './TermLabel';
+import { Icon } from 'office-ui-fabric-react';
 
 export const TaxonomyFileExplorer: React.FC<ITaxonomyFileExplorerProps> = (props) => {
   const [spSvc, setSpSvc] = React.useState<SPService>();
@@ -14,12 +15,14 @@ export const TaxonomyFileExplorer: React.FC<ITaxonomyFileExplorerProps> = (props
   const [terms, setTerms] = React.useState<ITermNode[]>([]);
   const [shownFiles, setShownFiles] = React.useState<IFileItem[]>([]);
   const [selectedTermnode, setSelectedTermnode] = React.useState<string>("");
+  const [collapseAll, setCollapseAll] = React.useState<boolean>(false);
+  const [expandAll, setExpandAll] = React.useState<boolean>(false);
 
   const buildTree = async () => {
-    const taxSvc: TaxonomyService = new TaxonomyService();
+    const taxSvc: TaxonomyService = new TaxonomyService(props.serviceScope);
-    const termsetID = await taxSvc.getTermsetInfo(props.fieldName);
+    const termsetID: string = await taxSvc.getTermsetInfo(props.fieldName);
     let termnodetree: ITermNode[];
-    const termnodetreeStr = sessionStorage.getItem(`Termtree_${termsetID}`);
+    const termnodetreeStr: string = sessionStorage.getItem(`Termtree_${termsetID}`);
     if (termnodetreeStr === null) {
       termnodetree = await taxSvc.getTermset(termsetID);
       sessionStorage.setItem(`Termtree_${termsetID}`, JSON.stringify(termnodetree));
@@ -28,26 +31,26 @@ export const TaxonomyFileExplorer: React.FC<ITaxonomyFileExplorerProps> = (props
       termnodetree = JSON.parse(termnodetreeStr);
     }
 
-    const spSrvc: SPService = new SPService(props.listName, props.fieldName);
+    const spSrvc: SPService = new SPService(props.serviceScope, props.listName, props.fieldName);
-    const files = await spSrvc.getItems(termsetID);
+    const files: IFileItem[] = await spSrvc.getItems(termsetID);
     setSpSvc(spSrvc);
     updateFiles(files, termnodetree);
   };
 
   const updateFiles = (files: IFileItem[], termnodetree: ITermNode[]) => {
-    const taxSvc: TaxonomyService = new TaxonomyService();
+    const taxSvc: TaxonomyService = new TaxonomyService(props.serviceScope);
     termnodetree = taxSvc.incorporateFiles(termnodetree, files);
     setFileItems(files);
     setTerms(termnodetree);
   };
 
-  const renderFiles = (files: IFileItem[]) => {
+  const renderFiles = React.useCallback((files: IFileItem[]) => {
     setShownFiles(files);
-  };
+  },[setShownFiles]);
 
-  const resetChecked = (newNodeID: string) => {
+  const resetChecked = React.useCallback((newNodeID: string) => {
     setSelectedTermnode(newNodeID);
-  };
+  },[setSelectedTermnode]);
 
   const reloadFiles = (file: IFileItem) => {
     const newFiles: IFileItem[] = [];
@@ -67,45 +70,66 @@ export const TaxonomyFileExplorer: React.FC<ITaxonomyFileExplorerProps> = (props
     updateFiles(newFiles, terms);
   };
 
-  const addTerm = (file: IFileItem, newTaxonomyValue: string) => {
+  const addTerm = React.useCallback((file: IFileItem, newTaxonomyValue: string) => {
     spSvc.updateTaxonomyItemByAdd(file, props.fieldName, newTaxonomyValue);
     reloadFiles(file);
-  };
+  },[spSvc, fileItems, terms]); // eslint-disable-line react-hooks/exhaustive-deps
 
-  const replaceTerm = (file: IFileItem, newTaxonomyValue: string) => {
+  const replaceTerm = React.useCallback((file: IFileItem, newTaxonomyValue: string) => {
     spSvc.updateTaxonomyItemByReplace(file, props.fieldName, newTaxonomyValue);
     reloadFiles(file);
-  };
+  },[spSvc, fileItems, terms]); // eslint-disable-line react-hooks/exhaustive-deps
 
-  const copyFile = async (file: IFileItem, newTaxonomyValue: string) => {
+  const copyFile = React.useCallback(async (file: IFileItem, newTaxonomyValue: string) => {
     const newFile = await spSvc.newTaxonomyItemByCopy(file, props.fieldName, newTaxonomyValue);
     loadNewFiles(newFile);
-  };
+  },[spSvc, fileItems, terms]); // eslint-disable-line react-hooks/exhaustive-deps
+
+  const uploadFile = React.useCallback(async (file: any, newTaxonomyValue: string) => {
+    const newFile = await spSvc.newTaxonomyItemByUpload(file, props.fieldName, newTaxonomyValue)
+    loadNewFiles(newFile);
+  },[spSvc, fileItems, terms]); // eslint-disable-line react-hooks/exhaustive-deps
+
+  const expandAllTerms = React.useCallback(() => {
+    setExpandAll(true);
+    setCollapseAll(false);
+  },[setExpandAll, setCollapseAll]);
+
+  const collapseAllTerms = React.useCallback(() => {
+    setCollapseAll(true);
+    setExpandAll(false);
+  },[setExpandAll, setCollapseAll]);
 
   React.useEffect(() => {
-    buildTree();
+    buildTree(); // eslint-disable-line @typescript-eslint/no-floating-promises
-  }, []);
+  }, []); // eslint-disable-line react-hooks/exhaustive-deps
 
   return (
     <div className={ styles.taxonomyFileExplorer }>
-      <div className={ styles.container }>
+      <div className={ styles.container }>            
         <div className={ styles.row }>
           <div className={ styles.column }>
+            <Icon className={styles.icon} iconName="ExploreContent" onClick={expandAllTerms} /> {/*  Alt: DoubleChevronRight */}
+            <Icon className={styles.icon} iconName="CollapseContent" onClick={collapseAllTerms} /> {/*  Alt: DoubleChevronDown */}
             <ul>
-              {terms.map(nc => { return <TermLabel node={nc} 
+              {terms.map(nc => { return <TermLabel node={nc}
+                                                    key={nc.guid}
                                                     renderFiles={renderFiles} 
                                                     resetChecked={resetChecked} 
                                                     selectedNode={selectedTermnode}
+                                                    collapseAll={collapseAll}
+                                                    expandAll={expandAll}
                                                     addTerm={addTerm}
                                                     replaceTerm={replaceTerm}
-                                                    copyFile={copyFile} />; })}
+                                                    copyFile={copyFile}
+                                                    uploadFile={uploadFile} />; })}
             </ul>
           </div>
           <div className={ styles.column }>
           {shownFiles.length > 0 && 
             <ul>
                 {shownFiles.map(f => {
-                    return <FileLabel file={f} />;
+                    return <FileLabel file={f} key={f.id} />;
                 })}
             </ul>}
           </div>

samples/react-taxonomy-file-explorer/src/webparts/taxonomyFileExplorer/components/TermLabel.module.scss

@@ -17,6 +17,9 @@
     .checkedLabel {
         border: 1px dotted "[theme: themePrimary, default: #0078d7]";
     }
+    .dragEnter {
+        background-color: "[theme: themeLight, default: #c7e0f4]";
+    }
     .icon {
         margin-right: 6px;
         cursor: pointer;

samples/react-taxonomy-file-explorer/src/webparts/taxonomyFileExplorer/components/TermLabel.tsx

@@ -11,47 +11,70 @@ export const TermLabel: React.FC<ITermLabelProps> = (props) => {
   const [countDocuments, setCountDocuments] = React.useState<number>(props.node.childDocuments);
   const [showContextualMenu, setShowContextualMenu] = React.useState<boolean>(false);
   const [droppedFile, setDroppedFile] = React.useState<IFileItem>();
+  const [dragEntered, setDragEntered] = React.useState<boolean>(false);
 
-  const toggleIcon = () =>  {
+  const toggleIcon = React.useCallback(() => {
     setShowChildren(!showChildren);
-  };
+  },[setShowChildren,showChildren]);
 
-  const nodeSelected = () => {
+  const nodeSelected = React.useCallback(() => {
     props.resetChecked(props.node.guid);
     props.renderFiles(props.node.subFiles);
-  };
+  },[]); // eslint-disable-line react-hooks/exhaustive-deps
 
-  const hideContextualMenu = () => {
+  const hideContextualMenu = React.useCallback(() => {
     setShowContextualMenu(false);
-  };
+  },[setShowContextualMenu]);
 
-  const drop = (ev) => {    
+  const uploadWithNewTerm = React.useCallback((file: any) => {
-    ev.preventDefault();
+    const newTaxonomyValue: string = `${props.node.name}|${props.node.guid}`;
-    var data = ev.dataTransfer.getData("text");
+    props.uploadFile(file, newTaxonomyValue);
-    const file: IFileItem = JSON.parse(data);
+  },[]); // eslint-disable-line react-hooks/exhaustive-deps
-    setDroppedFile(file);
+  
-    if (ev.ctrlKey) {
+  const addNewTerm = React.useCallback((file: IFileItem) => {
-      setShowContextualMenu(true);
+    const newTaxonomyValue: string = `${props.node.name}|${props.node.guid}`;
-    }
-    else {
-      addNewTerm(file); // Default option: Simply add the new (target) term to existing ones
-    }
-  };
-
-  const dragOver = (ev) => {
-    ev.preventDefault();
-  };
-    
-  const addNewTerm = (file: IFileItem) => {
-    const newTaxonomyValue = `${props.node.name}|${props.node.guid}`;
     file.termGuid.push(props.node.guid);
     file.taxValue.push(newTaxonomyValue);
-    console.log(file);
     props.addTerm(file, newTaxonomyValue);
-  };
+  },[]); // eslint-disable-line react-hooks/exhaustive-deps
+
+  const drop = React.useCallback((ev) => {    
+    ev.preventDefault();
+    // Drop is a file or a FileLabel
+    if (ev.dataTransfer.types.indexOf('Files') > -1) {
+      const dt = ev.dataTransfer;
+      const files =  Array.prototype.slice.call(dt.files);
+      files.forEach(fileToUpload => {
+        uploadWithNewTerm(fileToUpload);
+      });
+    }
+    else {
+      const data: string = ev.dataTransfer.getData("text");
+      const file: IFileItem = JSON.parse(data);
+      setDroppedFile(file);
+      if (ev.ctrlKey) {
+        setShowContextualMenu(true);
+      }
+      else {
+        addNewTerm(file); // Default option: Simply add the new (target) term to existing ones
+      }
+    }
+  },[uploadWithNewTerm, addNewTerm]);
+
+  const dragOver = React.useCallback((ev) => {
+    ev.preventDefault();
+  },[]);
+
+  const dragEnter = React.useCallback((ev) => {
+    setDragEntered(true);
+  },[setDragEntered]);
+
+  const dragLeave = React.useCallback((ev) => {
+    setDragEntered(false);
+  },[setDragEntered]);
 
   const replaceByNewTerm = (file: IFileItem) => {
-    const newTaxonomyValue = `${props.node.name}|${props.node.guid}`;
+    const newTaxonomyValue: string = `${props.node.name}|${props.node.guid}`;
     file.termGuid = [props.node.guid];
     file.taxValue = [newTaxonomyValue];
     console.log(file);
@@ -59,12 +82,11 @@ export const TermLabel: React.FC<ITermLabelProps> = (props) => {
   };
 
   const copyWithNewTerm = (file: IFileItem) => {
-    const newTaxonomyValue = `${props.node.name}|${props.node.guid}`;
+    const newTaxonomyValue: string = `${props.node.name}|${props.node.guid}`;
-    console.log(file);
     props.copyFile(file, newTaxonomyValue);
   };
 
-  const currentExpandIcon = showChildren? <Icon className={styles.icon} iconName="ChevronDown" onClick={toggleIcon} />:<Icon className={styles.icon} iconName="ChevronRight" onClick={toggleIcon} />;
+  const currentExpandIcon: JSX.Element = showChildren? <Icon className={styles.icon} iconName="ChevronDown" onClick={toggleIcon} />:<Icon className={styles.icon} iconName="ChevronRight" onClick={toggleIcon} />;
   const menuItems: IContextualMenuItem[] = [
     {
       key: 'copyItem',
@@ -81,6 +103,14 @@ export const TermLabel: React.FC<ITermLabelProps> = (props) => {
       text: 'Add new term (Link)',
       onClick: () => addNewTerm(droppedFile)
     }];
+  React.useEffect(() => {
+    if (props.expandAll) {
+      setShowChildren(true);
+    }
+    if (props.collapseAll) {
+      setShowChildren(false);
+    }
+  }, [props.collapseAll, props.expandAll]);
   React.useEffect(() => {
     if (props.selectedNode===props.node.guid) {
       props.renderFiles(props.node.subFiles);
@@ -88,32 +118,42 @@ export const TermLabel: React.FC<ITermLabelProps> = (props) => {
     if (props.node.childDocuments !== countDocuments) {
       setCountDocuments(props.node.childDocuments);
     }
-  }, [props.node.subFiles]);
+  }, [props.node.subFiles]); // eslint-disable-line react-hooks/exhaustive-deps
   return (
-      <li className={styles.termLabel}>            
+    <li className={styles.termLabel}>            
-          <div ref={linkRef} className={`${styles.label} ${props.selectedNode===props.node.guid ? styles.checkedLabel : ""}`} onClick={nodeSelected} onDrop={drop} onDragOver={dragOver}>
+      <div ref={linkRef} className={`${styles.label} ${props.selectedNode===props.node.guid ? styles.checkedLabel : ""} 
-              <label>
+                                      ${dragEntered ? styles.dragEnter : ""}`} 
-                  {props.node.children.length > 0 ? currentExpandIcon : <i className={styles.emptyicon}>&nbsp;</i>}
+                          onClick={nodeSelected} 
-                  <Icon className={styles.icon} iconName="FabricFolder" />
+                          onDrop={drop} 
-                  {props.node.name}{countDocuments>0?<span className={styles.fileCount}>{countDocuments}</span>:""}
+                          onDragOver={dragOver}
-              </label>
+                          onDragEnter={dragEnter}
-          </div>
+                          onDragLeave={dragLeave}>
-          <ContextualMenu
+        <label>
-            items={menuItems}
+          {props.node.children.length > 0 ? currentExpandIcon : <i className={styles.emptyicon}>&nbsp;</i>}
-            hidden={!showContextualMenu}
+          <Icon className={styles.icon} iconName="FabricFolder" />
-            target={linkRef}
+          {props.node.name}{countDocuments>0?<span className={styles.fileCount}>{countDocuments}</span>:""}
-            onItemClick={hideContextualMenu}
+        </label>
-            onDismiss={hideContextualMenu}
+      </div>
-          />
+      <ContextualMenu
-          {showChildren && <ul className={`${props.node.children.length > 0 ? styles.liFilled : ""}`}>
+        items={menuItems}
-              {props.node.children.map(nc => { return <TermLabel node={nc} 
+        hidden={!showContextualMenu}
-                                                                renderFiles={props.renderFiles} 
+        target={linkRef}
-                                                                resetChecked={props.resetChecked} 
+        onItemClick={hideContextualMenu}
-                                                                selectedNode={props.selectedNode}
+        onDismiss={hideContextualMenu}
-                                                                addTerm={props.addTerm}
+      />
-                                                                replaceTerm={props.replaceTerm}
+      {showChildren && <ul className={`${props.node.children.length > 0 ? styles.liFilled : ""}`}>
-                                                                copyFile={props.copyFile} />; })}
+          {props.node.children.map(nc => { return <TermLabel node={nc}
-          </ul>}            
+                                                            key={nc.guid}
-      </li>
+                                                            renderFiles={props.renderFiles} 
+                                                            resetChecked={props.resetChecked} 
+                                                            selectedNode={props.selectedNode}
+                                                            collapseAll={props.collapseAll}
+                                                            expandAll={props.expandAll}
+                                                            addTerm={props.addTerm}
+                                                            replaceTerm={props.replaceTerm}
+                                                            copyFile={props.copyFile}
+                                                            uploadFile={props.uploadFile} />; })}
+      </ul>}            
+    </li>
   );
 };

samples/react-taxonomy-file-explorer/tsconfig.json

@@ -1,5 +1,5 @@
 {
-  "extends": "./node_modules/@microsoft/rush-stack-compiler-3.9/includes/tsconfig-web.json",
+  "extends": "./node_modules/@microsoft/rush-stack-compiler-4.5/includes/tsconfig-web.json",
   "compilerOptions": {
     "target": "es5",
     "forceConsistentCasingInFileNames": true,