SyncfusionExamples · SF4524LogeshKumar · Jun 2, 2025
diff --git a/How to/Show and Hide Annotations/Show and Hide Annotations/.gitignore b/How to/Show and Hide Annotations/Show and Hide Annotations/.gitignore
@@ -0,0 +1,23 @@
+.DS_Store
+node_modules
+/dist
+
+
+# local env files
+.env.local
+.env.*.local
+
+# Log files
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+# Editor directories and files
+.idea
+.vscode
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
diff --git a/How to/Show and Hide Annotations/Show and Hide Annotations/README.md b/How to/Show and Hide Annotations/Show and Hide Annotations/README.md
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+# textsearch
+
+## Project setup
+```
+npm install
+```
+
+### Compiles and hot-reloads for development
+```
+npm run serve
+```
+
+### Compiles and minifies for production
+```
+npm run build
+```
+
+### Lints and fixes files
+```
+npm run lint
+```
+
+### Customize configuration
+See [Configuration Reference](https://cli.vuejs.org/config/).
diff --git a/How to/Show and Hide Annotations/Show and Hide Annotations/babel.config.js b/How to/Show and Hide Annotations/Show and Hide Annotations/babel.config.js
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+module.exports = {
+  presets: [
+    '@vue/cli-plugin-babel/preset'
+  ]
+}
diff --git a/How to/Show and Hide Annotations/Show and Hide Annotations/jsconfig.json b/How to/Show and Hide Annotations/Show and Hide Annotations/jsconfig.json
@@ -0,0 +1,19 @@
+{
+  "compilerOptions": {
+    "target": "es5",
+    "module": "esnext",
+    "baseUrl": "./",
+    "moduleResolution": "node",
+    "paths": {
+      "@/*": [
+        "src/*"
+      ]
+    },
+    "lib": [
+      "esnext",
+      "dom",
+      "dom.iterable",
+      "scripthost"
+    ]
+  }
+}
diff --git a/How to/Show and Hide Annotations/Show and Hide Annotations/package.json b/How to/Show and Hide Annotations/Show and Hide Annotations/package.json
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+{
+  "name": "textsearch",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "serve": "vue-cli-service serve",
+    "build": "vue-cli-service build",
+    "lint": "vue-cli-service lint"
+  },
+  "dependencies": {
+    "@syncfusion/ej2-vue-pdfviewer": "*",
+    "core-js": "^3.8.3",
+    "vue": "^3.2.13",
+    "buffer": "^6.0.3",
+    "crypto-browserify": "^3.12.0",
+    "stream-browserify": "^3.0.0",
+    "util": "^0.12.5",
+    "vm-browserify": "^1.1.2"
+  },
+  "devDependencies": {
+    "@babel/core": "^7.12.16",
+    "@babel/eslint-parser": "^7.12.16",
+    "@vue/cli-plugin-babel": "~5.0.0",
+    "@vue/cli-plugin-eslint": "~5.0.0",
+    "@vue/cli-service": "~5.0.0",
+    "eslint": "^7.32.0",
+    "eslint-plugin-vue": "^8.0.3"
+  },
+  "eslintConfig": {
+    "root": true,
+    "env": {
+      "node": true
+    },
+    "extends": [
+      "plugin:vue/essential",
+      "eslint:recommended"
+    ],
+    "parserOptions": {
+      "parser": "@babel/eslint-parser"
+    },
+    "rules": {}
+  },
+  "browserslist": [
+    "> 1%",
+    "last 2 versions",
+    "not dead",
+    "not ie 11"
+  ]
+}
diff --git a/How to/Show and Hide Annotations/Show and Hide Annotations/public/favicon.ico b/How to/Show and Hide Annotations/Show and Hide Annotations/public/favicon.ico
diff --git a/How to/Show and Hide Annotations/Show and Hide Annotations/public/index.html b/How to/Show and Hide Annotations/Show and Hide Annotations/public/index.html
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+<!DOCTYPE html>
+<html lang="">
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width,initial-scale=1.0">
+    <link rel="icon" href="<%= BASE_URL %>favicon.ico">
+    <title><%= htmlWebpackPlugin.options.title %></title>
+  </head>
+  <body>
+    <noscript>
+      <strong>We're sorry but <%= htmlWebpackPlugin.options.title %> doesn't work properly without JavaScript enabled. Please enable it to continue.</strong>
+    </noscript>
+    <br><br><br>
+    <div id="app"></div>
+    <!-- built files will be auto injected -->
+  </body>
+</html>
diff --git a/How to/Show and Hide Annotations/Show and Hide Annotations/src/App.vue b/How to/Show and Hide Annotations/Show and Hide Annotations/src/App.vue
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+<template>
+  <div id="app">
+    <button v-on:click="toggleAnnotations">
+      {{ annotationsVisible ? 'Hide Annotation' : 'Show Annotation' }}
+    </button>
+    <ejs-pdfviewer
+      id="pdfViewer"
+      ref="pdfviewer"
+      :documentPath="documentPath"
+      :serviceUrl="serviceUrl">
+    </ejs-pdfviewer>
+  </div>
+</template>
+
+<script>
+import {PdfViewerComponent, Toolbar, Magnification, Navigation, LinkAnnotation, BookmarkView, 
+  ThumbnailView, Print, TextSelection, TextSearch, Annotation, FormFields, FormDesigner, PageOrganizer } from '@syncfusion/ej2-vue-pdfviewer';
+
+export default {
+  name: 'app',
+  components: {
+    'ejs-pdfviewer': PdfViewerComponent,
+  },
+  data() {
+    return {
+      documentPath: "Annotations.pdf",
+      serviceUrl: "https://localhost:44309/pdfviewer",
+      exportObject: "",
+      annotationsVisible: true
+    };
+  },
+  provide: {
+    PdfViewer: [
+      Toolbar, Magnification, Navigation, LinkAnnotation, BookmarkView,
+      ThumbnailView, Print, TextSelection, TextSearch, Annotation, FormFields, FormDesigner, PageOrganizer
+    ]
+  },
+  methods: {
+    async toggleAnnotations() {
+      const viewer = this.$refs.pdfviewer.ej2Instances;
+
+      if (this.annotationsVisible) {
+        // Hide annotations by exporting and deleting them
+        try {
+          const value = await viewer.exportAnnotationsAsObject();
+          this.exportObject = JSON.stringify(value); // Convert object to string for later use
+
+          const count = viewer.annotationCollection.length;
+          for (let i = 0; i < count; i++) {
+            // Always delete the first item as the collection shrinks
+            viewer.annotationModule.deleteAnnotationById(viewer.annotationCollection[0].annotationId);
+          }
+
+          this.annotationsVisible = false;
+        } catch (error) {
+          console.error('Error hiding annotations:', error);
+        }
+      } else {
+        // Restore annotations
+        if (this.exportObject) {
+          const parsedObject = JSON.parse(this.exportObject);
+          viewer.importAnnotation(JSON.parse(parsedObject));
+        }
+
+        this.annotationsVisible = true;
+      }
+    }
+  }
+};
+</script>
+
+<style>
+@import "../node_modules/@syncfusion/ej2-base/styles/material.css";
+@import "../node_modules/@syncfusion/ej2-buttons/styles/material.css";
+@import "../node_modules/@syncfusion/ej2-dropdowns/styles/material.css";
+@import "../node_modules/@syncfusion/ej2-inputs/styles/material.css";
+@import "../node_modules/@syncfusion/ej2-navigations/styles/material.css";
+@import "../node_modules/@syncfusion/ej2-popups/styles/material.css";
+@import "../node_modules/@syncfusion/ej2-splitbuttons/styles/material.css";
+@import "../node_modules/@syncfusion/ej2-vue-pdfviewer/styles/material.css";
+</style>
diff --git a/How to/Show and Hide Annotations/Show and Hide Annotations/src/assets/logo.png b/How to/Show and Hide Annotations/Show and Hide Annotations/src/assets/logo.png
diff --git a/How to/Show and Hide Annotations/Show and Hide Annotations/src/main.js b/How to/Show and Hide Annotations/Show and Hide Annotations/src/main.js
@@ -0,0 +1,4 @@
+import { createApp } from 'vue'
+import App from './App.vue'
+
+createApp(App).mount('#app')
diff --git a/How to/Show and Hide Annotations/Show and Hide Annotations/vue.config.js b/How to/Show and Hide Annotations/Show and Hide Annotations/vue.config.js
@@ -0,0 +1,4 @@
+const { defineConfig } = require('@vue/cli-service')
+module.exports = defineConfig({
+  transpileDependencies: true
+})
diff --git a/How to/Show and Hide Annotations/Web Service/ControllerPractice.sln b/How to/Show and Hide Annotations/Web Service/ControllerPractice.sln
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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.3.32901.215
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "ControllerPractice", "ControllerPractice\ControllerPractice.csproj", "{14100176-83DC-4CB1-87D4-4D71C9E8F177}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+		Release-Xml|Any CPU = Release-Xml|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{14100176-83DC-4CB1-87D4-4D71C9E8F177}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{14100176-83DC-4CB1-87D4-4D71C9E8F177}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{14100176-83DC-4CB1-87D4-4D71C9E8F177}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{14100176-83DC-4CB1-87D4-4D71C9E8F177}.Release|Any CPU.Build.0 = Release|Any CPU
+		{14100176-83DC-4CB1-87D4-4D71C9E8F177}.Release-Xml|Any CPU.ActiveCfg = Release|Any CPU
+		{14100176-83DC-4CB1-87D4-4D71C9E8F177}.Release-Xml|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {676A0D7F-7DC9-4AC1-B66A-956820E0B388}
+	EndGlobalSection
+EndGlobal
diff --git a/How to/Show and Hide Annotations/Web Service/ControllerPractice/ControllerPractice.csproj b/How to/Show and Hide Annotations/Web Service/ControllerPractice/ControllerPractice.csproj
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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="6.0.13" />
+    <PackageReference Include="Syncfusion.EJ2.AspNet.Core" Version="22.2.10" />
+    <PackageReference Include="Syncfusion.EJ2.PdfViewer.AspNet.Core.Windows" Version="22.2.10" />
+  </ItemGroup>
+
+</Project>
diff --git a/...o/Show and Hide Annotations/Web Service/ControllerPractice/ControllerPractice.csproj.user b/...o/Show and Hide Annotations/Web Service/ControllerPractice/ControllerPractice.csproj.user
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Controller_SelectedScaffolderID>MvcControllerEmptyScaffolder</Controller_SelectedScaffolderID>
+    <Controller_SelectedScaffolderCategoryPath>root/Common/MVC/Controller</Controller_SelectedScaffolderCategoryPath>
+  </PropertyGroup>
+</Project>
diff --git a/...to/Show and Hide Annotations/Web Service/ControllerPractice/Controllers/HomeController.cs b/...to/Show and Hide Annotations/Web Service/ControllerPractice/Controllers/HomeController.cs
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+using ControllerPractice.Models;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace ControllerPractice.Controllers
+{
+    public class HomeController : Controller
+    {
+        private readonly ILogger<HomeController> _logger;
+
+        public HomeController(ILogger<HomeController> logger)
+        {
+            _logger = logger;
+        }
+
+        public IActionResult Index()
+        {
+            return View();
+        }
+
+        public IActionResult Privacy()
+        {
+            return View();
+        }
+
+        [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
+        public IActionResult Error()
+        {
+            return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
+        }
+    }
+}