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deepika134deepika134
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Added Video for Layer
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‎Videos/Layer/Layer.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 17
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VisualStudioVersion = 17.14.36310.24 d17.14
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Layer", "Layer\Layer.csproj", "{C465AA8A-0C10-4098-BB7D-81BD08D68042}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{C465AA8A-0C10-4098-BB7D-81BD08D68042}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{C465AA8A-0C10-4098-BB7D-81BD08D68042}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{C465AA8A-0C10-4098-BB7D-81BD08D68042}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{C465AA8A-0C10-4098-BB7D-81BD08D68042}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {050DD7C2-C963-46F7-9A70-4CD761EE46A0}
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EndGlobalSection
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EndGlobal

‎Videos/Layer/Layer/Controllers/HomeController.cs‎

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using System.Diagnostics;
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using Layer.Models;
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using Microsoft.AspNetCore.Mvc;
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using Syncfusion.Pdf;
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using Syncfusion.Drawing;
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using Syncfusion.Pdf.Graphics;
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using Syncfusion.Pdf.Parsing;
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namespace Layer.Controllers
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{
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public class HomeController : Controller
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{
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private readonly ILogger<HomeController> _logger;
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public HomeController(ILogger<HomeController> logger)
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{
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_logger = logger;
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}
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public IActionResult CreateLayer()
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{
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PdfDocument document = new PdfDocument();
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document.PageSettings.Margins.All = 0;
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PdfPage page = document.Pages.Add();
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PdfPageLayer backgroundLayer = page.Layers.Add("Background");
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PdfBrush backgroundBrush = new PdfSolidBrush(Color.LightBlue);
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backgroundLayer.Graphics.DrawRectangle(backgroundBrush, new RectangleF(0, 0, page.Size.Width, page.Size.Height));
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PdfPageLayer mainContentLayer = page.Layers.Add("Main Content");
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PdfFont font = new PdfStandardFont(PdfFontFamily.Helvetica, 16);
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PdfBrush textBrush = new PdfSolidBrush(Color.Black);
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mainContentLayer.Graphics.DrawString("Welcome to PDF Layers!", font, textBrush, new PointF(50, 50));
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MemoryStream outputStream = new MemoryStream();
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document.Save(outputStream);
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outputStream.Position = 0;
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document.Close(true);
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return File(outputStream, "application/pdf", "Layer.pdf");
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}
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public IActionResult AddLayerToDocument()
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{
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PdfLoadedDocument loadedDocument = new PdfLoadedDocument("Data/input.pdf");
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loadedDocument.FindText("PDF Succinctly", 0, out var matchRect);
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PdfLayer? parentLayer = null;
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if (matchRect != null && matchRect.Count > 0)
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{
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parentLayer = AddLayer(loadedDocument, "PDF Succinctly", matchRect[0], PdfBrushes.Red, null);
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var childTexts = new[]
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{
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new { Text = "Introduction", Brush = PdfBrushes.Green },
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new { Text = "The PDF Standard", Brush = PdfBrushes.Blue },
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};
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foreach (var item in childTexts)
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{
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loadedDocument.FindText(item.Text, 0, out var childRect);
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if (childRect != null && childRect.Count > 0)
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{
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AddLayer(loadedDocument, item.Text, childRect[0], item.Brush, parentLayer);
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}
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}
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}
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return ExportPDFFile(loadedDocument, "Output.pdf");
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}
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public IActionResult SetLayerVisibility()
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{
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PdfLoadedDocument loadedDocument = new PdfLoadedDocument("Data/layer.pdf");
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PdfLayer layer = loadedDocument.Layers[0];
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layer.Visible = false;
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return ExportPDFFile(loadedDocument, "LayerVisibility.pdf");
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}
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public IActionResult RemoveLayer()
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{
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PdfLoadedDocument loadedDocument = new PdfLoadedDocument("Data/layer.pdf");
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PdfLoadedPage? loadedPage = loadedDocument.Pages[0] as PdfLoadedPage;
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PdfPageLayerCollection layers = loadedPage!.Layers;
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layers.RemoveAt(0);
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return ExportPDFFile(loadedDocument, "RemoveLayer.pdf");
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}
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private FileStreamResult ExportPDFFile(PdfLoadedDocument document, string fileName)
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{
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// Save the given document into a memory stream
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MemoryStream outputStream = new MemoryStream();
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document.Save(outputStream);
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// Reset stream to the beginning for correct file delivery
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outputStream.Position = 0;
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// Close the document and release resources
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document.Close(true);
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// Return the memory stream as a downloadable PDF file
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return File(outputStream, "application/pdf", fileName);
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}
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/// <summary>
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/// Adds a layer to the PDF document at the specified location.
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/// </summary>
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/// <param name="loadedDocument">The loaded PDF document.</param>
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/// <param name="layerName">Name of the layer.</param>
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/// <param name="rect">Rectangle area to draw.</param>
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/// <param name="brush">Brush color for drawing.</param>
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/// <param name="parentLayer">Optional parent layer for nesting.</param>
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/// <returns>The created PdfLayer.</returns>
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PdfLayer AddLayer(PdfLoadedDocument loadedDocument, string layerName, RectangleF rect, PdfBrush brush, PdfLayer? parentLayer)
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{
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// Create a new layer, nested if parentLayer is provided
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PdfLayer layer = parentLayer == null
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? loadedDocument.Layers.Add(layerName)
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: parentLayer.Layers.Add(layerName);
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// Create graphics for the layer on the first page
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PdfGraphics graphics = layer.CreateGraphics(loadedDocument.Pages[0]!);
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// Apply transparency and draw the rectangle
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graphics.Save();
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graphics.SetTransparency(0.5f);
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graphics.DrawRectangle(brush, rect);
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graphics.Restore();
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return layer;
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}
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public IActionResult Index()
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{
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return View();
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}
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public IActionResult Privacy()
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{
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return View();
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}
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[ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
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public IActionResult Error()
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{
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return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
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}
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}
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}

‎Videos/Layer/Layer/Data/input.pdf‎

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‎Videos/Layer/Layer/Data/layer.pdf‎

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‎Videos/Layer/Layer/Layer.csproj‎

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<Project Sdk="Microsoft.NET.Sdk.Web">
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<PropertyGroup>
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<TargetFramework>net8.0</TargetFramework>
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<Nullable>enable</Nullable>
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<ImplicitUsings>enable</ImplicitUsings>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Syncfusion.Pdf.Net.Core" Version="*" />
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</ItemGroup>
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</Project>

‎Videos/Layer/Layer/Models/ErrorViewModel.cs‎

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namespace Layer.Models
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{
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public class ErrorViewModel
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{
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public string? RequestId { get; set; }
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public bool ShowRequestId => !string.IsNullOrEmpty(RequestId);
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}
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}

‎Videos/Layer/Layer/Program.cs‎

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namespace Layer
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{
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public class Program
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{
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public static void Main(string[] args)
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{
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var builder = WebApplication.CreateBuilder(args);
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// Add services to the container.
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builder.Services.AddControllersWithViews();
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var app = builder.Build();
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// Configure the HTTP request pipeline.
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if (!app.Environment.IsDevelopment())
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{
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app.UseExceptionHandler("/Home/Error");
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// The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
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app.UseHsts();
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}
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app.UseHttpsRedirection();
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app.UseStaticFiles();
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app.UseRouting();
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app.UseAuthorization();
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app.MapControllerRoute(
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name: "default",
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pattern: "{controller=Home}/{action=Index}/{id?}");
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app.Run();
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}
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}
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}

‎Videos/Layer/Layer/Properties/launchSettings.json‎

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{
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"$schema": "http://json.schemastore.org/launchsettings.json",
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"iisSettings": {
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"windowsAuthentication": false,
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"anonymousAuthentication": true,
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"iisExpress": {
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"applicationUrl": "http://localhost:14808",
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"sslPort": 44387
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}
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},
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"profiles": {
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"http": {
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"commandName": "Project",
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"dotnetRunMessages": true,
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"launchBrowser": true,
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"applicationUrl": "http://localhost:5007",
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"environmentVariables": {
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"ASPNETCORE_ENVIRONMENT": "Development"
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}
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},
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"https": {
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"commandName": "Project",
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"dotnetRunMessages": true,
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"launchBrowser": true,
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"applicationUrl": "https://localhost:7069;http://localhost:5007",
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"environmentVariables": {
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"ASPNETCORE_ENVIRONMENT": "Development"
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}
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},
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"IIS Express": {
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"commandName": "IISExpress",
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"launchBrowser": true,
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"environmentVariables": {
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"ASPNETCORE_ENVIRONMENT": "Development"
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}
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}
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}
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}

‎Videos/Layer/Layer/Views/Home/Index.cshtml‎

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@{
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ViewData["Title"] = "Home Page";
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}
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<div>
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<h2 style="margin-bottom: 20px">Working with Layers in PDF</h2>
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<div>
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<button style="width: 250px; margin-bottom: 20px; height: 40px;display:block;font-size:18px;"
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onclick="location.href='@Url.Action("CreateLayer", "Home")'">
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Create Layer
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</button>
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<button style="width: 250px; margin-bottom: 20px; height: 40px;display:block;font-size:18px;"
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onclick="location.href='@Url.Action("AddLayerToDocument", "Home")'">
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Add Layer
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</button>
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<button style="width: 250px; margin-bottom: 20px; height: 40px;display:block;font-size:18px;"
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onclick="location.href='@Url.Action("SetLayerVisibility", "Home")'">
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Set Layer Visibility
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</button>
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<button style="width: 250px; margin-bottom: 20px; height: 40px;display:block;font-size:18px;"
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onclick="location.href='@Url.Action("RemoveLayer", "Home")'">
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Remove Layer
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</button>
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</div>
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</div>

‎Videos/Layer/Layer/Views/Home/Privacy.cshtml‎

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@{
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ViewData["Title"] = "Privacy Policy";
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}
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<h1>@ViewData["Title"]</h1>
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<p>Use this page to detail your site's privacy policy.</p>

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