ByteScout PDF SDK – C# – Add Show Hide Action to PDF

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ByteScout PDF SDK – C# – Add Show Hide Action to PDF

printable version:
ByteScout-PDF-SDK-C-sharp-Add-Show-Hide-Action-to-PDF.pdf

How to add show hide action to PDF in C# using ByteScout PDF SDK

This code in C# shows how to add show hide action to PDF with this how to tutorial

The code below will help you to implement an C# app to add show hide action to PDF. ByteScout PDF SDK is the SDK for pdf documents generation, modification and updates. Can also generate and fill PDF forms. Provides support for text (fonts, style, size, font family), layers, pdf form fields, vector and raster drawings. It can add show hide action to PDF in C#.

This rich sample source code in C# for ByteScout PDF SDK includes the number of functions and options you should do calling the API to add show hide action to PDF. In your C# project or application you may simply copy & paste the code and then run your app! Code testing will allow the function to be tested and work properly with your data.

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Program.cs

      using System.Diagnostics;
using Bytescout.PDF;

namespace ShowHideWidget
{
    /// <summary>
    /// This example demonstrates how to show/hide a widget in document.
    /// </summary>
    class Program
    {
        static void Main()
        {
            // Create new document
            Document pdfDocument = new Document();
            pdfDocument.RegistrationName = "demo";
            pdfDocument.RegistrationKey = "demo";
            // Add page
            Page page = new Page(PaperFormat.A4);
            pdfDocument.Pages.Add(page);

            // Create widget that will be shown/hidden
            EditBox editBox = new EditBox(20, 20, 100, 25, "editBox1");
            editBox.Text = "editBox1";
            page.Annotations.Add(editBox);
            
            // Create button that will show the widget
            PushButton buttonShow = new PushButton(20, 80, 50, 25, "buttonShow");
            buttonShow.Caption = "Show";
            page.Annotations.Add(buttonShow);
            // Add Show action
            HideAction showAction = new HideAction(false);
            showAction.Fields.Add(editBox);
            buttonShow.OnActivated = showAction;

            // Create button that will hide the widget
            PushButton buttonHide = new PushButton(100, 80, 50, 25, "buttonHide");
            buttonHide.Caption = "Hide";
            page.Annotations.Add(buttonHide);
            // Add Hide action
            HideAction hideAction = new HideAction(true);
            hideAction.Fields.Add(editBox);
            buttonHide.OnActivated = hideAction;

            // Save document to file
            pdfDocument.Save("result.pdf");

            // Cleanup 
            pdfDocument.Dispose();

            // Open result document in default associated application (for demo purpose)
            ProcessStartInfo processStartInfo = new ProcessStartInfo("result.pdf");
            processStartInfo.UseShellExecute = true;
            Process.Start(processStartInfo);
        }
    }
}