SyncfusionExamples · rparthi-1687 · Aug 11, 2025 · Aug 7, 2025 · Aug 7, 2025
diff --git a/How to/Load Documents with links and Validate Form Fields/CoreSample.sln b/How to/Load Documents with links and Validate Form Fields/CoreSample.sln
@@ -0,0 +1,28 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.8.34309.116
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CoreSample", "CoreSample\CoreSample.csproj", "{74B177C7-8BEA-4FC2-8067-208F7A494DA3}"
+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
+		{74B177C7-8BEA-4FC2-8067-208F7A494DA3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{74B177C7-8BEA-4FC2-8067-208F7A494DA3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{74B177C7-8BEA-4FC2-8067-208F7A494DA3}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{74B177C7-8BEA-4FC2-8067-208F7A494DA3}.Release|Any CPU.Build.0 = Release|Any CPU
+		{74B177C7-8BEA-4FC2-8067-208F7A494DA3}.Release-Xml|Any CPU.ActiveCfg = Release|Any CPU
+		{74B177C7-8BEA-4FC2-8067-208F7A494DA3}.Release-Xml|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {0548ECA4-3BAC-44DB-90D2-F6C447AD24CC}
+	EndGlobalSection
+EndGlobal
diff --git a/How to/Load Documents with links and Validate Form Fields/CoreSample/CoreSample.csproj b/How to/Load Documents with links and Validate Form Fields/CoreSample/CoreSample.csproj
@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="SkiaSharp.NativeAssets.Linux" Version="2.88.8" />
+    <PackageReference Include="Syncfusion.EJ2.AspNet.Core" Version="*" />
+    <PackageReference Include="Syncfusion.EJ2.PdfViewer.AspNet.Core" Version="*" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="PDF_Succinctly.pdf">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+</Project>
diff --git a/How to/Load Documents with links and Validate Form Fields/CoreSample/CoreSample.csproj.user b/How to/Load Documents with links and Validate Form Fields/CoreSample/CoreSample.csproj.user
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ActiveDebugProfile>IIS Express</ActiveDebugProfile>
+    <NameOfLastUsedPublishProfile>D:\EJ2 Materials\ASP.NET.Core\8.0\CoreSample8.01999985370\CoreSample\CoreSample\Properties\PublishProfiles\CoreSample20240719165733 - Web Deploy.pubxml</NameOfLastUsedPublishProfile>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
+    <DebuggerFlavor>ProjectDebugger</DebuggerFlavor>
+  </PropertyGroup>
+</Project>
diff --git a/How to/Load Documents with links and Validate Form Fields/CoreSample/NuGet.config b/How to/Load Documents with links and Validate Form Fields/CoreSample/NuGet.config
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <packageSources>
+    <clear />
+    <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
+  </packageSources>
+  <fallbackPackageFolders>
+    <clear />
+  </fallbackPackageFolders>
+  <disabledPackageSources>
+    <clear />
+  </disabledPackageSources>
+</configuration>
diff --git a/How to/Load Documents with links and Validate Form Fields/CoreSample/Pages/Error.cshtml b/How to/Load Documents with links and Validate Form Fields/CoreSample/Pages/Error.cshtml
@@ -0,0 +1,26 @@
+@page
+@model ErrorModel
+@{
+    ViewData["Title"] = "Error";
+}
+
+<h1 class="text-danger">Error.</h1>
+<h2 class="text-danger">An error occurred while processing your request.</h2>
+
+@if (Model.ShowRequestId)
+{
+    <p>
+        <strong>Request ID:</strong> <code>@Model.RequestId</code>
+    </p>
+}
+
+<h3>Development Mode</h3>
+<p>
+    Swapping to the <strong>Development</strong> environment displays detailed information about the error that occurred.
+</p>
+<p>
+    <strong>The Development environment shouldn't be enabled for deployed applications.</strong>
+    It can result in displaying sensitive information from exceptions to end users.
+    For local debugging, enable the <strong>Development</strong> environment by setting the <strong>ASPNETCORE_ENVIRONMENT</strong> environment variable to <strong>Development</strong>
+    and restarting the app.
+</p>
diff --git a/How to/Load Documents with links and Validate Form Fields/CoreSample/Pages/Error.cshtml.cs b/How to/Load Documents with links and Validate Form Fields/CoreSample/Pages/Error.cshtml.cs
@@ -0,0 +1,28 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using System.Diagnostics;
+
+namespace CoreSample.Pages
+{
+    [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
+    [IgnoreAntiforgeryToken]
+    public class ErrorModel : PageModel
+    {
+        public string? RequestId { get; set; }
+
+        public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
+
+        private readonly ILogger<ErrorModel> _logger;
+
+        public ErrorModel(ILogger<ErrorModel> logger)
+        {
+            _logger = logger;
+        }
+
+        public void OnGet()
+        {
+            RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier;
+        }
+    }
+
+}
diff --git a/How to/Load Documents with links and Validate Form Fields/CoreSample/Pages/Index.cshtml b/How to/Load Documents with links and Validate Form Fields/CoreSample/Pages/Index.cshtml
@@ -0,0 +1,107 @@
+@page "{handler?}"
+@model IndexModel
+@{
+    // Set the page title for the browser tab
+    ViewData["Title"] = "Home page";
+
+    // Build the base URL for the application using current request information
+    var originUrl = $"{Request.Scheme}://{Request.Host}{Request.PathBase}";
+
+    // Define the default document path
+    var document = originUrl + "/PDF_Succinctly.pdf";
+
+    // Set the resource URL for Syncfusion PDF Viewer library files
+    var resourceUrl = originUrl + "/ej2-pdfviewer-lib";
+}
+
+<div>
+    <h5>Select Document to View</h5>
+    <ul>
+        <li id="set" onclick="loadDocument1()"><a href="#">Document 1</a></li>
+        <li id="set" onclick="loadDocument2()"><a href="#">Document 2</a></li>
+        <li id="set" onclick="loadDocument3()"><a href="#">Document 3</a></li>
+    </ul>
+    <ejs-pdfviewer id="pdfviewer" style="height:600px" resourceUrl=@resourceUrl formFieldPropertiesChange="formFieldPropertiesChange" formFieldAdd="onFormFieldAdd">
+    </ejs-pdfviewer>
+</div>
+
+<script>
+    var originUrl = '@originUrl';
+
+    function loadDocument1() {
+        var viewer = document.getElementById('pdfviewer').ej2_instances[0];
+        viewer.load(originUrl + "/form-filling-document.pdf", "null");
+    }
+
+    function loadDocument2() {
+        var viewer = document.getElementById('pdfviewer').ej2_instances[0];
+        viewer.load(originUrl + "/form-designer.pdf", "null");
+    }
+
+    function loadDocument3() {
+        var viewer = document.getElementById('pdfviewer').ej2_instances[0];
+        viewer.load(originUrl + "/pdf-succinctly (5).pdf", "null");
+    }
+
+    function validateEmail(value) {
+        const emailRegex =  /^[^\s@@]+@@[^\s@@]+\.[^\s@@]+$/; 
+        return emailRegex.test(value);
+    }
+
+    function validateNumber(value) {
+        const numberRegex = /^[0-9]+$/;
+        return numberRegex.test(value);
+    }
+
+    function validateDate(value) {
+        const dateRegex = /^\d{4}-\d{2}-\d{2}$/;
+        return dateRegex.test(value);
+    }
+
+    function onFormFieldAdd(event) {
+        console.log('New form field added:', event.field);
+
+        if (event.field.type === 'Text') {
+            event.field.placeholder = 'Enter text here...';
+        }
+    }
+
+
+    function formFieldPropertiesChange(event) {
+        const viewer = document.getElementById('pdfviewer').ej2_instances[0];
+        const field = event.field;
+        const value = field.value;
+        let isValid = true;
+
+        // Remove '_content' from the field ID if it exists
+        const fieldIdWithoutContent = field.id.replace('_content', '');
+
+        // Find the matching field in the form field collection
+        const formFields = viewer.formFieldCollections;
+        const matchingField = formFields.find(f => f.id === fieldIdWithoutContent);
+
+        if (!matchingField) {
+            console.error(`Field with ID "${fieldIdWithoutContent}" not found in the form field collection.`);
+            return;
+        }
+
+        // Validate based on field name
+        if (matchingField.name.includes('My Email')) {
+            isValid = validateEmail(value);
+        } else if (matchingField.name.includes('My Phone')) {
+            isValid = validateNumber(value);
+        } else if (matchingField.name.includes('dob')) {
+            isValid = validateDate(value);
+        }
+
+        if (!isValid) {
+            // Update field properties to show invalid state (red border), keep the value as is
+            viewer.formDesigner.updateFormField(matchingField, { borderColor: 'red' });
+        } else {
+            // Reset to the default border color when valid input is entered
+            viewer.formDesigner.updateFormField(matchingField, { borderColor: '#2f2f2fff' });
+        }
+    }
+
+
+</script>
diff --git a/How to/Load Documents with links and Validate Form Fields/CoreSample/Pages/Index.cshtml.cs b/How to/Load Documents with links and Validate Form Fields/CoreSample/Pages/Index.cshtml.cs
@@ -0,0 +1,26 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Caching.Memory;
+using Syncfusion.EJ2.PdfViewer;
+using Newtonsoft.Json;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using System.Reflection;
+using System.Net;
+using Syncfusion.Pdf.Parsing;
+
+namespace CoreSample.Pages
+{
+    [IgnoreAntiforgeryToken(Order = 1001)]
+    public class IndexModel : PageModel
+    {
+
+        private readonly Microsoft.AspNetCore.Hosting.IHostingEnvironment _hostingEnvironment;
+        private IMemoryCache _cache;
+
+        public IndexModel(Microsoft.AspNetCore.Hosting.IHostingEnvironment hostingEnvironment, IMemoryCache cache)
+        {
+            _hostingEnvironment = hostingEnvironment;
+            _cache = cache;
+        }
+
+    }
+}
diff --git a/How to/Load Documents with links and Validate Form Fields/CoreSample/Pages/Privacy.cshtml b/How to/Load Documents with links and Validate Form Fields/CoreSample/Pages/Privacy.cshtml
@@ -0,0 +1,8 @@
+@page
+@model PrivacyModel
+@{
+    ViewData["Title"] = "Privacy Policy";
+}
+<h1>@ViewData["Title"]</h1>
+
+<p>Use this page to detail your site's privacy policy.</p>
diff --git a/How to/Load Documents with links and Validate Form Fields/CoreSample/Pages/Privacy.cshtml.cs b/How to/Load Documents with links and Validate Form Fields/CoreSample/Pages/Privacy.cshtml.cs
@@ -0,0 +1,20 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+
+namespace CoreSample.Pages
+{
+    public class PrivacyModel : PageModel
+    {
+        private readonly ILogger<PrivacyModel> _logger;
+
+        public PrivacyModel(ILogger<PrivacyModel> logger)
+        {
+            _logger = logger;
+        }
+
+        public void OnGet()
+        {
+        }
+    }
+
+}
diff --git a/...Load Documents with links and Validate Form Fields/CoreSample/Pages/Shared/_Layout.cshtml b/...Load Documents with links and Validate Form Fields/CoreSample/Pages/Shared/_Layout.cshtml
@@ -0,0 +1,57 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>@ViewData["Title"] - CoreSample</title>
+    <link rel="stylesheet" href="~/lib/bootstrap/dist/css/bootstrap.min.css" />
+    <link rel="stylesheet" href="~/css/site.css" asp-append-version="true" />
+    <link rel="stylesheet" href="~/CoreSample.styles.css" asp-append-version="true" />
+    <!-- Syncfusion ASP.NET Core controls styles -->
+    <link rel="stylesheet" href="~/material.min.css" />
+    <!-- Syncfusion ASP.NET Core controls scripts -->
+    <script src="~/ej2.min.js"></script>
+</head>
+<body>
+    <header>
+        <nav class="navbar navbar-expand-sm navbar-toggleable-sm navbar-light bg-white border-bottom box-shadow mb-3">
+            <div class="container">
+                <a class="navbar-brand" asp-area="" asp-page="/Index">CoreSample</a>
+                <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target=".navbar-collapse" aria-controls="navbarSupportedContent"
+                        aria-expanded="false" aria-label="Toggle navigation">
+                    <span class="navbar-toggler-icon"></span>
+                </button>
+                <div class="navbar-collapse collapse d-sm-inline-flex justify-content-between">
+                    <ul class="navbar-nav flex-grow-1">
+                        <li class="nav-item">
+                            <a class="nav-link text-dark" asp-area="" asp-page="/Index">Home</a>
+                        </li>
+                        <li class="nav-item">
+                            <a class="nav-link text-dark" asp-area="" asp-page="/Privacy">Privacy</a>
+                        </li>
+                    </ul>
+                </div>
+            </div>
+        </nav>
+    </header>
+    <div class="container-fluid">
+        <main role="main" class="pb-3">
+            @RenderBody()
+        </main>
+    </div>
+
+    <footer class="border-top footer text-muted">
+        <div class="container">
+            &copy; 2023 - CoreSample - <a asp-area="" asp-page="/Privacy">Privacy</a>
+        </div>
+    </footer>
+
+    <script src="~/lib/jquery/dist/jquery.min.js"></script>
+    <script src="~/lib/bootstrap/dist/js/bootstrap.bundle.min.js"></script>
+    <script src="~/js/site.js" asp-append-version="true"></script>
+
+    @await RenderSectionAsync("Scripts", required: false)
+    <!-- Syncfusion ASP.NET Core Script Manager -->
+    <ejs-scripts></ejs-scripts>
+</body>
+</html>