using Spire.Pdf;
using Spire.Pdf.Fields;
using Spire.Pdf.Widget;


namespace RemoveSpecifiedFormfield
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create PdfDocument instance
            PdfDocument pdf = new PdfDocument();

            //Load PDF file
            pdf.LoadFromFile(@"Input.pdf");

            //Get form fields
            PdfFormWidget formWidget = pdf.Form as PdfFormWidget;

            //Get and remove the first form field
            PdfField textbox = formWidget.FieldsWidget.List[0] as PdfTextBoxFieldWidget;
            formWidget.FieldsWidget.Remove(textbox);

            //Get and remove the first form field using its name
            //PdfField field = formWidget.FieldsWidget["Text1"];
            //formWidget.FieldsWidget.Remove(field);

            //Remove the form field at index 0
            //formWidget.FieldsWidget.RemoveAt(0);

            pdf.SaveToFile("DeleteParticularField.pdf");
        }

    }
}

using Spire.Pdf;
using Spire.Pdf.Fields;
using Spire.Pdf.Widget;


namespace RemoveSpecifiedFormfield
{
    class Program
    {
        static void Main(string[] args)
        {
            //Create PdfDocument instance
            PdfDocument pdf = new PdfDocument();

            //Load PDF file
            pdf.LoadFromFile(@"Input.pdf");

            //Get form fields
            PdfFormWidget formWidget = pdf.Form as PdfFormWidget;

            //Remove all of the form fields
            for (int i = formWidget.FieldsWidget.List.Count - 1; i >= 0; i--)
            {
                PdfField field = formWidget.FieldsWidget.List[i] as PdfField;
                formWidget.FieldsWidget.Remove(field);
            }

            pdf.SaveToFile("DeleteAllFields.pdf");
        }

    }
}

PdfDocument doc = new PdfDocument();
PdfPageBase page = doc.Pages.Add();

PdfButtonField btn = new PdfButtonField(page, "button1");
btn.Bounds = new RectangleF(0, 50, 120, 100);

btn.HighlightMode = PdfHighlightMode.Push;
btn.LayoutMode = PdfButtonLayoutMode.CaptionOverlayIcon;
//Set text and icon for Normal appearance
btn.Text = "Normal Text";
btn.Icon = PdfImage.FromFile("Image.png");
//Set text and icon for Click appearance (Can only be set when highlight mode is Push)
btn.AlternateText = "Alternate Text";
btn.AlternateIcon = PdfImage.FromFile("Sunflower.jpg");
//Set text and icon for Rollover appearance (Can only be set when highlight mode is Push)
btn.RolloverText = "Rollover Text";
btn.RolloverIcon = PdfImage.FromFile("PinkRoses.jpg");

btn.IconLayout.Spaces = new float[] { 0.5f, 0.5f };
btn.IconLayout.ScaleMode = PdfButtonIconScaleMode.Proportional;
btn.IconLayout.ScaleReason = PdfButtonIconScaleReason.Always;
btn.IconLayout.IsFitBounds = false;

doc.Form.Fields.Add(btn);

doc.SaveToFile("AddIcon.pdf");

using System.Drawing;
using Spire.Pdf;
using Spire.Pdf.Fields;
using Spire.Pdf.Graphics;

namespace Add_Icon_to_PDF_Button_Field
{
    class Program
    {
        static void Main(string[] args)
        {   
            //Create a PDF document       
            PdfDocument doc = new PdfDocument();
            PdfPageBase page = doc.Pages.Add();

            //Create a Button
            PdfButtonField btn = new PdfButtonField(page, "button1");
            btn.Bounds = new RectangleF(0, 50, 120, 100);
            btn.HighlightMode = PdfHighlightMode.Push;
            btn.LayoutMode = PdfButtonLayoutMode.CaptionOverlayIcon;
            //Set text and icon for Normal appearance
            btn.Text = "Normal Text";
            btn.Icon = PdfImage.FromFile("Image.png");
            //Set text and icon for Click appearance (Can only be set when highlight mode is Push)
            btn.AlternateText = "Alternate Text";
            btn.AlternateIcon = PdfImage.FromFile("Sunflower.jpg");
            //Set text and icon for Rollover appearance (Can only be set when highlight mode is Push)
            btn.RolloverText = "Rollover Text";
            btn.RolloverIcon = PdfImage.FromFile("PinkRoses.jpg");

            //Set icon layout
            btn.IconLayout.Spaces = new float[] { 0.5f, 0.5f };
            btn.IconLayout.ScaleMode = PdfButtonIconScaleMode.Proportional;
            btn.IconLayout.ScaleReason = PdfButtonIconScaleReason.Always;
            btn.IconLayout.IsFitBounds = false;

            //Add the button to the document
            doc.Form.Fields.Add(btn);

            //Save the document
            doc.SaveToFile("AddIcon.pdf");            
        }
    }
}

//create a PDF document and load the document from file
 PdfDocument pdf = new PdfDocument();
 pdf.LoadFromFile("FormField.pdf");

 //get the existing form
 PdfFormWidget fw = pdf.Form as PdfFormWidget;

 //get the ListBox field and set the field of CommitOnSelChange property as true
 if (fw != null)
 {
     for (int i = 0; i < fw.FieldsWidget.Count; i++)
     {
         if (fw.FieldsWidget[i] != null)
         {
             if (fw.FieldsWidget[i] is PdfListBoxWidgetFieldWidget)
             {

                 (fw.FieldsWidget[i] as PdfListBoxWidgetFieldWidget).CommitOnSelChange = true;
             }
         }
     }
 }
 pdf.SaveToFile("Result.pdf");

using (PdfDocument pdf = new PdfDocument())
{
    PdfPageBase page = pdf.Pages.Add();
    
     //add a new ComboBox Field and add data to it
PdfComboBoxField combo = new PdfComboBoxField(page, "ComboBox");
    combo.Bounds = new RectangleF(20, 20,60, 20);
    PdfListFieldItem item1 = new PdfListFieldItem("First", "1");
    PdfListFieldItem item2 = new PdfListFieldItem("Second", "2");
    combo.Items.Add(item1);
    combo.Items.Add(item2);

//set the field of CommitOnSelChange property as true
    combo.CommitOnSelChange = true;

    pdf.Form.Fields.Add(combo);
    pdf.SaveToFile("Result2.Pdf");
}

PdfDocument doc = new PdfDocument();
doc.LoadFromFile("DynamicXFA.pdf");

PdfFormWidget formWidget = doc.Form as PdfFormWidget;

List<XfaField> xfafields = formWidget.XFAForm.XfaFields;

foreach (XfaField xfaField in xfaFields)
{
    if (xfaField is XfaTextField)
    {
        XfaTextField xf = xfaField as XfaTextField;
        switch (xfaField.Name)
        {
            case "EmployeeName":
                xf.Value = "Gary";
                break;
            case "Address":
                xf.Value = "Chengdu, China";
                break;
            case "StateProv":
                xf.Value = "Sichuan Province";
                break;
            case "ZipCode":
                xf.Value = "610093";
                break;
            case "SSNumber":
                xf.Value = "000-00-0000";
                break;
            case "HomePhone":
                xf.Value = "86-028-81705109";
                break;
            case "CellPhone":
                xf.Value = "123456789";
                break;
            case "Comments":
                xf.Value = "This demo shows how to fill XFA forms using Spire.PDF";
                break;
            default:
                break;
        }
    }
}

doc.SaveToFile("FillXfaField.pdf",FileFormat.PDF);

using Spire.Pdf;
using Spire.Pdf.Widget;
using System.Collections.Generic;


namespace FillXFAFormFields
{
    class Program
    {
        private static IEnumerable xfaFields;
        static void Main(string []args)
        {
            PdfDocument doc = new PdfDocument();
            doc.LoadFromFile("DynamicXFA.pdf");

            PdfFormWidget formWidget = doc.Form as PdfFormWidget;
            List xfafields = formWidget.XFAForm.XfaFields;
            foreach (XfaField xfaField in xfaFields)
            {
                if (xfaField is XfaTextField)
                {
                    XfaTextField xf = xfaField as XfaTextField;
                    switch (xfaField.Name)
                    {
                        case "EmployeeName":
                            xf.Value = "Gary";
                            break;
                        case "Address":
                            xf.Value = "Chengdu, China";
                            break;
                        case "StateProv":
                            xf.Value = "Sichuan Province";
                            break;
                        case "ZipCode":
                            xf.Value = "610093";
                            break;
                        case "SSNumber":
                            xf.Value = "000-00-0000";
                            break;
                        case "HomePhone":
                            xf.Value = "86-028-81705109";
                            break;
                        case "CellPhone":
                            xf.Value = "123456789";
                            break;
                        case "Comments":
                            xf.Value = "This demo shows how to fill XFA forms using Spire.PDF";
                            break;
                        default:
                            break;
                    }
                }
            }
            doc.SaveToFile("FillXfaField.pdf", FileFormat.PDF);
        }
    }
}

Imports Spire.Pdf
Imports Spire.Pdf.Widget
Imports System.Collections.Generic


Namespace FillXFAFormFields
	Class Program
		Private Shared xfaFields As IEnumerable(Of XfaField)
		Private Shared Sub Main(args As String())
			Dim doc As New PdfDocument()
			doc.LoadFromFile("DynamicXFA.pdf")

			Dim formWidget As PdfFormWidget = TryCast(doc.Form, PdfFormWidget)
			Dim xfafields__1 As List(Of XfaField) = formWidget.XFAForm.XfaFields
			For Each xfaField As XfaField In xfaFields
				If TypeOf xfaField Is XfaTextField Then
					Dim xf As XfaTextField = TryCast(xfaField, XfaTextField)
					Select Case xfaField.Name
						Case "EmployeeName"
							xf.Value = "Gary"
							Exit Select
						Case "Address"
							xf.Value = "Chengdu, China"
							Exit Select
						Case "StateProv"
							xf.Value = "Sichuan Province"
							Exit Select
						Case "ZipCode"
							xf.Value = "610093"
							Exit Select
						Case "SSNumber"
							xf.Value = "000-00-0000"
							Exit Select
						Case "HomePhone"
							xf.Value = "86-028-81705109"
							Exit Select
						Case "CellPhone"
							xf.Value = "123456789"
							Exit Select
						Case "Comments"
							xf.Value = "This demo shows how to fill XFA forms using Spire.PDF"
							Exit Select
						Case Else
							Exit Select
					End Select
				End If
			Next
			doc.SaveToFile("FillXfaField.pdf", FileFormat.PDF)
		End Sub
	End Class
End Namespace

PdfDocument doc = new PdfDocument();
doc.LoadFromFile(@"C: \Users\Administrator\Desktop\PdfFormExample.pdf");

PdfFormWidget formWidget = doc.Form as PdfFormWidget;

for (int i = 0; i < formWidget.FieldsWidget.List.Count; i++)
{
    PdfField field = formWidget.FieldsWidget.List[i] as PdfField;
    string fieldName = field.Name;
    bool isRequired = field.Required;
    if (isRequired)
    {
        Console.WriteLine(fieldName + " is required.");
    }
}

using Spire.Pdf;
using Spire.Pdf.Fields;
using Spire.Pdf.Widget;
using System;

namespace Detect
{
    class Program
    {
        static void Main(string []args)
        {
            PdfDocument doc = new PdfDocument();
            doc.LoadFromFile(@"C: \Users\Administrator\Desktop\PdfFormExample.pdf");

            PdfFormWidget formWidget = doc.Form as PdfFormWidget;
            for (int i = 0; i < formWidget.FieldsWidget.List.Count; i++)
            {
                PdfField field = formWidget.FieldsWidget.List[i] as PdfField;
                string fieldName = field.Name;
                bool isRequired = field.Required;
                if (isRequired)
                {
                    Console.WriteLine(fieldName + " is required.");
                }
            }
            Console.ReadKey();
        }
    }
}

Imports Spire.Pdf
Imports Spire.Pdf.Fields
Imports Spire.Pdf.Widget

Namespace Detect
	Class Program
		Private Shared Sub Main(args As String())
			Dim doc As New PdfDocument()
			doc.LoadFromFile("C: \Users\Administrator\Desktop\PdfFormExample.pdf")

			Dim formWidget As PdfFormWidget = TryCast(doc.Form, PdfFormWidget)
			For i As Integer = 0 To formWidget.FieldsWidget.List.Count - 1
				Dim field As PdfField = TryCast(formWidget.FieldsWidget.List(i), PdfField)
				Dim fieldName As String = field.Name
				Dim isRequired As Boolean = field.Required
				If isRequired Then
					Console.WriteLine(fieldName & Convert.ToString(" is required."))
				End If
			Next
			Console.ReadKey()
		End Sub
	End Class
End Namespace

PdfDocument pdf = new PdfDocument();
PdfPageBase page = pdf.Pages.Add();

PdfTextBoxField textbox = new PdfTextBoxField(page, "Number-TextBox");
textbox.Bounds = new RectangleF(10, 10, 100, 20);
textbox.BorderWidth = 0.75f;
textbox.BorderStyle = PdfBorderStyle.Solid;

string js = PdfJavaScript.GetNumberKeystrokeString(2, 0, 0, 0, "$", true);
PdfJavaScriptAction jsAction = new PdfJavaScriptAction(js);
textbox.Actions.KeyPressed = jsAction;

js = PdfJavaScript.GetNumberFormatString(2, 0, 0, 0, "$", true);
jsAction = new PdfJavaScriptAction(js);
textbox.Actions.Format = jsAction;

pdf.Form.Fields.Add(textbox);
pdf.SaveToFile("FormatField.pdf",FileFormat.PDF);

using Spire.Pdf;
using Spire.Pdf.Actions;
using Spire.Pdf.Fields;
using System.Drawing;

namespace FormatTextboxField
{
    class Program
    {
        static void Main(string []args)
        {
            PdfDocument pdf = new PdfDocument();
            PdfPageBase page = pdf.Pages.Add();
            PdfTextBoxField textbox = new PdfTextBoxField(page, "Number-TextBox");
            textbox.Bounds = new RectangleF(10, 10, 100, 20);
            textbox.BorderWidth = 0.75f;
            textbox.BorderStyle = PdfBorderStyle.Solid;

            string js = PdfJavaScript.GetNumberKeystrokeString(2, 0, 0, 0, "$", true);
            PdfJavaScriptAction jsAction = new PdfJavaScriptAction(js);
            textbox.Actions.KeyPressed = jsAction;

            js = PdfJavaScript.GetNumberFormatString(2, 0, 0, 0, "$", true);
            jsAction = new PdfJavaScriptAction(js);
            textbox.Actions.Format = jsAction;

            pdf.Form.Fields.Add(textbox);
            pdf.SaveToFile("FormatField.pdf", FileFormat.PDF);
        }
    }
}

Imports Spire.Pdf
Imports Spire.Pdf.Actions
Imports Spire.Pdf.Fields
Imports System.Drawing

Namespace FormatTextboxField
	Class Program
		Private Shared Sub Main(args As String())
			Dim pdf As New PdfDocument()
			Dim page As PdfPageBase = pdf.Pages.Add()
			Dim textbox As New PdfTextBoxField(page, "Number-TextBox")
			textbox.Bounds = New RectangleF(10, 10, 100, 20)
			textbox.BorderWidth = 0.75F
			textbox.BorderStyle = PdfBorderStyle.Solid

			Dim js As String = PdfJavaScript.GetNumberKeystrokeString(2, 0, 0, 0, "$", True)
			Dim jsAction As New PdfJavaScriptAction(js)
			textbox.Actions.KeyPressed = jsAction

			js = PdfJavaScript.GetNumberFormatString(2, 0, 0, 0, "$", True)
			jsAction = New PdfJavaScriptAction(js)
			textbox.Actions.Format = jsAction

			pdf.Form.Fields.Add(textbox)
			pdf.SaveToFile("FormatField.pdf", FileFormat.PDF)
		End Sub
	End Class
End Namespace

PdfDocument doc = new PdfDocument();
PdfPageBase page = doc.Pages.Add(PdfPageSize.A4, new PdfMargins(0));

PdfFont font = new PdfFont(PdfFontFamily.Helvetica, 12f,PdfFontStyle.Bold);
PdfBrush brush = PdfBrushes.Black;
float x = 50;
float y = 50;
float tempX = 0;
string text = "E-mail: ";
page.Canvas.DrawString(text, font, brush, x, y);
tempX = font.MeasureString(text).Width + x+15;
PdfTextBoxField textbox = new PdfTextBoxField(page, "TextBox");
textbox.Bounds = new RectangleF(tempX, y, 100, 15);
textbox.BorderWidth = 0.75f;
textbox.BorderStyle = PdfBorderStyle.Solid;
doc.Form.Fields.Add(textbox);

doc.Form.Fields["TextBox"].ToolTip = "Please insert a valid email address";

doc.SaveToFile("sample.pdf", FileFormat.PDF);
System.Diagnostics.Process.Start("sample.pdf");

using Spire.Pdf;
using Spire.Pdf.Fields;
using Spire.Pdf.Graphics;
using System.Drawing;


namespace AddTooltip
{
    class Program
    {
        static void Main(string []args)
        {
            PdfDocument doc = new PdfDocument();
            PdfPageBase page = doc.Pages.Add(PdfPageSize.A4, new PdfMargins(0));

            PdfFont font = new PdfFont(PdfFontFamily.Helvetica, 12f, PdfFontStyle.Bold);
            PdfBrush brush = PdfBrushes.Black;
            float x = 50;
            float y = 50;
            float tempX = 0;
            string text = "E-mail: ";
            page.Canvas.DrawString(text, font, brush, x, y);
            tempX = font.MeasureString(text).Width + x + 15;
            PdfTextBoxField textbox = new PdfTextBoxField(page, "TextBox");
            textbox.Bounds = new RectangleF(tempX, y, 100, 15);
            textbox.BorderWidth = 0.75f;
            textbox.BorderStyle = PdfBorderStyle.Solid;
            doc.Form.Fields.Add(textbox);

            doc.Form.Fields["TextBox"].ToolTip = "Please insert a valid email address";

            doc.SaveToFile("sample.pdf", FileFormat.PDF);
            System.Diagnostics.Process.Start("sample.pdf");
        }
    }
}

Imports Spire.Pdf
Imports Spire.Pdf.Fields
Imports Spire.Pdf.Graphics
Imports System.Drawing


Namespace AddTooltip
	Class Program
		Private Shared Sub Main(args As String())
			Dim doc As New PdfDocument()
			Dim page As PdfPageBase = doc.Pages.Add(PdfPageSize.A4, New PdfMargins(0))

			Dim font As New PdfFont(PdfFontFamily.Helvetica, 12F, PdfFontStyle.Bold)
			Dim brush As PdfBrush = PdfBrushes.Black
			Dim x As Single = 50
			Dim y As Single = 50
			Dim tempX As Single = 0
			Dim text As String = "E-mail: "
			page.Canvas.DrawString(text, font, brush, x, y)
			tempX = font.MeasureString(text).Width + x + 15
			Dim textbox As New PdfTextBoxField(page, "TextBox")
			textbox.Bounds = New RectangleF(tempX, y, 100, 15)
			textbox.BorderWidth = 0.75F
			textbox.BorderStyle = PdfBorderStyle.Solid
			doc.Form.Fields.Add(textbox)

			doc.Form.Fields("TextBox").ToolTip = "Please insert a valid email address"

			doc.SaveToFile("sample.pdf", FileFormat.PDF)
			System.Diagnostics.Process.Start("sample.pdf")
		End Sub
	End Class
End Namespace