PdfFieldCollection Class

Represents the collection of the PDF fields.

Inheritance

System.Object

PdfCollection

PdfFieldCollection

PdfFormFieldCollection

PdfLoadedFormFieldCollection

Implements

System.Collections.IEnumerable

Inherited Members

PdfCollection.Count

PdfCollection.GetEnumerator()

PdfCollection.List

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: Syncfusion.Pdf.Interactive

Assembly: Syncfusion.Pdf.Base.dll

Syntax

public class PdfFieldCollection : PdfCollection, IEnumerable, IPdfWrapper

Remarks

This PdfFormFieldCollection class is used to get the collection of form fields. Please refer the UG docuemntation link https://help.syncfusion.com/file-formats/pdf/working-with-forms#adding-the-combo-box-field for more details.

Examples

//Create a new PDf document
PdfDocument document = new PdfDocument();
//Creates a new page and adds it as the last page of the document
PdfPage page = document.Pages.Add();
PdfFont font = new PdfStandardFont(PdfFontFamily.Courier, 12f);          
//Create a combo box
PdfComboBoxField positionComboBox = new PdfComboBoxField(page, "positionComboBox"); 
positionComboBox.Bounds = new RectangleF(100, 115, 200, 20);
positionComboBox.Font = font;
positionComboBox.Editable = true;
//Add it to document
document.Form.Fields.Add(positionComboBox);
PdfFieldCollection fieldCollection = document.Form.Fields;
// Flatten the form collection
for (int i = 0; i != fieldCollection.Count; i++)
{
 fieldCollection[i].Flatten = true;
}
//Save the document to disk.
document.Save("Form.pdf");
//Close the document.
document.Close(true);

'Create a new PDf document
Dim document As PdfDocument = New PdfDocument()
'Create a page
Dim page As PdfPage = document.Pages.Add()
Dim font As PdfFont = New PdfStandardFont(PdfFontFamily.Courier, 12f)
'Create a combo box
Dim positionComboBox As PdfComboBoxField = New PdfComboBoxField(page, "positionComboBox")
positionComboBox.Bounds = New RectangleF(100, 115, 200, 20)
positionComboBox.Font = font
positionComboBox.Editable = True
'Add it to document
document.Form.Fields.Add(positionComboBox)
Dim fieldCollection As PdfFieldCollection = document.Form.Fields
' Flatten the form collection
For i As Integer = 0 To fieldCollection.Count - 1
fieldCollection(i).Flatten = True
Next i
'Save the document to disk.
document.Save("Form.pdf")
'Close the document.
document.Close(True)

Constructors

PdfFieldCollection()

Initializes a new instance of the PdfFieldCollection class.

Declaration

public PdfFieldCollection()

Examples

//Create a new PDf document
PdfDocument document = new PdfDocument();
//Creates a new page and adds it as the last page of the document
PdfPage page = document.Pages.Add();
PdfFont font = new PdfStandardFont(PdfFontFamily.Courier, 12f);          
//Create a combo box
PdfComboBoxField positionComboBox = new PdfComboBoxField(page, "positionComboBox"); 
positionComboBox.Bounds = new RectangleF(100, 115, 200, 20);
positionComboBox.Font = font;
positionComboBox.Editable = true;
//Add it to document
document.Form.Fields.Add(positionComboBox);
PdfFieldCollection fieldCollection = new PdfFieldCollection();
fieldCollection = document.Form.Fields;
// Flatten the form collection
for (int i = 0; i != fieldCollection.Count; i++)
{
 fieldCollection[i].Flatten = true;
}
//Save the document to disk.
document.Save("Form.pdf");
//Close the document.
document.Close(true);

'Create a new PDf document
Dim document As PdfDocument = New PdfDocument()
'Create a page
Dim page As PdfPage = document.Pages.Add()
Dim font As PdfFont = New PdfStandardFont(PdfFontFamily.Courier, 12f)
'Create a combo box
Dim positionComboBox As PdfComboBoxField = New PdfComboBoxField(page, "positionComboBox")
positionComboBox.Bounds = New RectangleF(100, 115, 200, 20)
positionComboBox.Font = font
positionComboBox.Editable = True
'Add it to document
document.Form.Fields.Add(positionComboBox)
Dim fieldCollection As PdfFieldCollection = New PdfFieldCollection()
fieldCollection = document.Form.Fields
' Flatten the form collection
For i As Integer = 0 To fieldCollection.Count - 1
fieldCollection(i).Flatten = True
Next i
'Save the document to disk.
document.Save("Form.pdf")
'Close the document.
document.Close(True)

See Also

PdfDocument

PdfComboBoxField

PdfCollection

Syncfusion.Pdf.IPdfWrapper

Properties

Item[Int32]

Gets the PdfField at the specified index.[Read-Only]

Declaration

public virtual PdfField this[int index] { get; }

Parameters

Type	Name	Description
System.Int32	index

Property Value

Type
PdfField

Examples

//Create a new PDf document
PdfDocument document = new PdfDocument();
//Creates a new page and adds it as the last page of the document
PdfPage page = document.Pages.Add();
PdfFont font = new PdfStandardFont(PdfFontFamily.Courier, 12f);          
//Create a combo box
PdfComboBoxField positionComboBox = new PdfComboBoxField(page, "positionComboBox");    
positionComboBox.Bounds = new RectangleF(100, 115, 200, 20);
positionComboBox.Font = font;
positionComboBox.Editable = true;
//Add it to document
document.Form.Fields.Add(positionComboBox);
PdfFieldCollection fieldCollection = document.Form.Fields;
// Flatten the form collection
for (int i = 0; i != fieldCollection.Count; i++)
{
 fieldCollection[i].Flatten = true;
}
//Save the document to disk.
document.Save("Form.pdf");
//Close the document.
document.Close(true);

'Create a new PDf document
Dim document As PdfDocument = New PdfDocument()
'Create a page
Dim page As PdfPage = document.Pages.Add()
Dim font As PdfFont = New PdfStandardFont(PdfFontFamily.Courier, 12f)
'Create a combo box
Dim positionComboBox As PdfComboBoxField = New PdfComboBoxField(page, "positionComboBox")
positionComboBox.Editable = True      
positionComboBox.Bounds = New RectangleF(100, 115, 200, 20)
positionComboBox.Font = font
positionComboBox.Editable = True
'Add it to document
document.Form.Fields.Add(positionComboBox)
Dim fieldCollection As PdfFieldCollection = document.Form.Fields
' Flatten the form collection
For i As Integer = 0 To fieldCollection.Count - 1
fieldCollection(i).Flatten = True
Next i
'Save the document to disk.
document.Save("Form.pdf")
'Close the document.
document.Close(True)

See Also

PdfDocument

PdfComboBoxField

Item[String]

Gets the PdfField with their field name.[Read-Only]

Declaration

public PdfField this[string name] { get; }

Parameters

Type	Name	Description
System.String	name

Property Value

Type
PdfField

Examples

//Create a new PDf document
PdfDocument document = new PdfDocument();
//Creates a new page and adds it as the last page of the document
PdfPage page = document.Pages.Add();
PdfFont font = new PdfStandardFont(PdfFontFamily.Courier, 12f);          
//Create a combo box
PdfComboBoxField positionComboBox = new PdfComboBoxField(page, "positionComboBox");    
positionComboBox.Bounds = new RectangleF(100, 115, 200, 20);
positionComboBox.Font = font;
positionComboBox.Editable = true;
//Add it to document
document.Form.Fields.Add(positionComboBox);
PdfFieldCollection fieldCollection = document.Form.Fields;
// Flatten the form collection
fieldCollection["positionComboBox"].Flatten = true;
//Save the document to disk.
document.Save("Form.pdf");
//Close the document.
document.Close(true);

'Create a new PDf document
Dim document As PdfDocument = New PdfDocument()
'Create a page
Dim page As PdfPage = document.Pages.Add()
Dim font As PdfFont = New PdfStandardFont(PdfFontFamily.Courier, 12f)
'Create a combo box
Dim positionComboBox As PdfComboBoxField = New PdfComboBoxField(page, "positionComboBox")
positionComboBox.Editable = True      
positionComboBox.Bounds = New RectangleF(100, 115, 200, 20)
positionComboBox.Font = font
positionComboBox.Editable = True
'Add it to document
document.Form.Fields.Add(positionComboBox)
Dim fieldCollection As PdfFieldCollection = document.Form.Fields
' Flatten the form collection
fieldCollection("positionComboBox").Flatten = True
'Save the document to disk.
document.Save("Form.pdf")
'Close the document.
document.Close(True)

See Also

PdfDocument

PdfComboBoxField

Methods

Add(PdfField)

Adds the specified field to the collection.

Declaration

public int Add(PdfField field)

Parameters

Type	Name	Description
PdfField	field	The field item which is added in the PDF form.

Returns

Type	Description
System.Int32	The field to be added on the page.

Examples

//Create a new PDf document
PdfDocument document = new PdfDocument();
//Creates a new page and adds it as the last page of the document
PdfPage page = document.Pages.Add();
PdfFont font = new PdfStandardFont(PdfFontFamily.Courier, 12f);                     
PdfFieldCollection fieldCollection = document.Form.Fields;
//Create a combo box
PdfComboBoxField positionComboBox = new PdfComboBoxField(page, "positionComboBox");
positionComboBox.Editable = true;        
positionComboBox.Bounds = new RectangleF(100, 115, 200, 20);
positionComboBox.Font = font;
positionComboBox.Editable = true;
fieldCollection.Add(positionComboBox as PdfField);
//Save the document to disk.
document.Save("Form.pdf");
//Close the document.
document.Close(true);

'Create a new PDf document
Dim document As PdfDocument = New PdfDocument()
'Create a page
Dim page As PdfPage = document.Pages.Add()
Dim font As PdfFont = New PdfStandardFont(PdfFontFamily.Courier, 12f)
Dim fieldCollection As PdfFieldCollection = document.Form.Fields
'Create a combo box
Dim positionComboBox As PdfComboBoxField = New PdfComboBoxField(page, "positionComboBox")
positionComboBox.Editable = True        
positionComboBox.Bounds = New RectangleF(100, 115, 200, 20)
positionComboBox.Font = font
positionComboBox.Editable = True
fieldCollection.Add(TryCast(positionComboBox, PdfField))
'Save the document to disk.
document.Save("Form.pdf")
'Close the document.
document.Close(True)

See Also

PdfDocument

PdfPage

PdfComboBoxField

Clear()

Clears the form field collection.

Declaration

public void Clear()

Examples

//Load the PDF document.
PdfLoadedDocument loadedDocument = new PdfLoadedDocument("Form.pdf");
//Get the field collections.
PdfFieldCollection fieldCollection = loadedDocument.Form.Fields;
//Clears the form field collection.
fieldCollection.Clear();
//Save the document to disk.
loadedDocument.Save("Sample.pdf");
//Close the document.
loadedDocument.Close(true);

'Load the PDF document.
Dim loadedDocument As PdfLoadedDocument = New PdfLoadedDocument("Input.pdf")
'Get the field collections.
Dim fieldCollection As PdfFieldCollection = loadedDocument.Form.Fields
'Clears the form field collection.
fieldCollection.Clear();
'Save the document to disk.
loadedDocument.Save("Sample.pdf")
'Close the document.
loadedDocument.Close(true)

Contains(PdfField)

Determines whether field is contained within the collection.

Declaration

public bool Contains(PdfField field)

Parameters

Type	Name	Description
PdfField	field	Check whether PdfField object is present in the field collection or not.

Returns

Type	Description
System.Boolean	true if field is present in the collection, otherwise, false.

Examples

//Create a new PDf document
PdfDocument document = new PdfDocument();
//Creates a new page and adds it as the last page of the document
PdfPage page = document.Pages.Add();
PdfFont font = new PdfStandardFont(PdfFontFamily.Courier, 12f);                     
PdfFieldCollection fieldCollection = document.Form.Fields;
//Create a combo box
PdfComboBoxField positionComboBox = new PdfComboBoxField(page, "positionComboBox");
positionComboBox.Editable = true;        
positionComboBox.Bounds = new RectangleF(100, 115, 200, 20);
positionComboBox.Font = font;
positionComboBox.Editable = true;
if (fieldCollection.Contains(positionComboBox as PdfField))
 MessageBox.Show("Already added field");
else
 fieldCollection.Add(positionComboBox as PdfField);
 //Save the document to disk.
document.Save("Form.pdf");
//Close the document.
document.Close(true);

'Create a new PDf document
Dim document As PdfDocument = New PdfDocument()
'Create a page
Dim page As PdfPage = document.Pages.Add()
Dim font As PdfFont = New PdfStandardFont(PdfFontFamily.Courier, 12f)
Dim fieldCollection As PdfFieldCollection = document.Form.Fields
'Create a combo box
Dim positionComboBox As PdfComboBoxField = New PdfComboBoxField(page, "positionComboBox")
positionComboBox.Editable = True
positionComboBox.Bounds = New RectangleF(100, 115, 200, 20)
positionComboBox.Font = font
positionComboBox.Editable = True
If fieldCollection.Contains(TryCast(positionComboBox, PdfField)) Then
MessageBox.Show("Already added field")
Else
fieldCollection.Add(TryCast(positionComboBox, PdfField))
End If
'Save the document to disk.
document.Save("Form.pdf")
'Close the document.
document.Close(True)

See Also

PdfDocument

PdfPage

PdfComboBoxField

DoAdd(PdfField)

Adds a field to collection.

Declaration

protected virtual int DoAdd(PdfField field)

Parameters

Type	Name	Description
PdfField	field	The field.

Returns

Type	Description
System.Int32	field.

DoAdd(PdfXfaForm, String)

Add the specified XFA form fields

Declaration

protected virtual void DoAdd(PdfXfaForm form, string subformName)

Parameters

Type	Name	Description
PdfXfaForm	form
System.String	subformName

DoClear()

Clears the collection.

Declaration

protected virtual void DoClear()

DoInsert(Int32, PdfField)

Inserts a filed into collection.

Declaration

protected virtual void DoInsert(int index, PdfField field)

Parameters

Type	Name	Description
System.Int32	index	The index.
PdfField	field	The field.

DoRemove(PdfField)

Removes the field from collection.

Declaration

protected virtual void DoRemove(PdfField field)

Parameters

Type	Name	Description
PdfField	field	The field.

DoRemoveAt(Int32)

Removes the field at the specified position.

Declaration

protected virtual void DoRemoveAt(int index)

Parameters

Type	Name	Description
System.Int32	index	The index.

IndexOf(PdfField)

Gets the index of the specific field.

Declaration

public int IndexOf(PdfField field)

Parameters

Type	Name	Description
PdfField	field	The PdfField object whose index is requested.

Returns

Type	Description
System.Int32	Index of the field in collection.

Examples

//Create a new PDf document
PdfDocument document = new PdfDocument();
//Creates a new page and adds it as the last page of the document
PdfPage page = document.Pages.Add();
PdfFont font = new PdfStandardFont(PdfFontFamily.Courier, 12f);
PdfFieldCollection fieldCollection = document.Form.Fields;
//Create a combo box
PdfComboBoxField positionComboBox = new PdfComboBoxField(page, "positionComboBox");
positionComboBox.Editable = true;
positionComboBox.Bounds = new RectangleF(100, 115, 200, 20);
positionComboBox.Font = font;
positionComboBox.Editable = true;
document.Form.Fields.Add(positionComboBox);
int index = fieldCollection.IndexOf(positionComboBox as PdfField);
//Save the document to disk.
document.Save("Form.pdf");
//Close the document.
document.Close(true);

'Create a new PDf document
Dim document As PdfDocument = New PdfDocument()
'Create a page
Dim page As PdfPage = document.Pages.Add()
Dim font As PdfFont = New PdfStandardFont(PdfFontFamily.Courier, 12f)
Dim fieldCollection As PdfFieldCollection = document.Form.Fields
'Create a combo box
Dim positionComboBox As PdfComboBoxField = New PdfComboBoxField(page, "positionComboBox")
positionComboBox.Editable = True
positionComboBox.Bounds = New RectangleF(100, 115, 200, 20)
positionComboBox.Font = font
positionComboBox.Editable = True
document.Form.Fields.Add(positionComboBox)
Dim index As Integer = fieldCollection.IndexOf(TryCast(positionComboBox, PdfField))
'Save the document to disk.
document.Save("Form.pdf")
'Close the document.
document.Close(True)

See Also

PdfDocument

PdfPage

PdfComboBoxField

Insert(Int32, PdfField)

Inserts the field at the specified index.

Declaration

public void Insert(int index, PdfField field)

Parameters

Type	Name	Description
System.Int32	index	The index of the field.
PdfField	field	The field which should be inserted at the specified index.

Examples

//Create a new PDf document
PdfDocument document = new PdfDocument();
//Creates a new page and adds it as the last page of the document
PdfPage page = document.Pages.Add();
PdfFont font = new PdfStandardFont(PdfFontFamily.Courier, 12f);
//Create a check box
PdfCheckBoxField checkBox = new PdfCheckBoxField(page, "C#.NET");
checkBox.Bounds = new RectangleF(100, 290, 20, 20);
document.Form.Fields.Add(checkBox);
checkBox.HighlightMode = PdfHighlightMode.Push;
checkBox.BorderStyle = PdfBorderStyle.Beveled;
//Set the value for the check box
checkBox.Checked = true;
document.Form.Fields.Add(checkBox);
PdfFieldCollection fieldCollection = document.Form.Fields;
//Create a combo box
PdfComboBoxField positionComboBox = new PdfComboBoxField(page, "positionComboBox");
positionComboBox.Editable = true;
positionComboBox.Bounds = new RectangleF(100, 115, 200, 20);
positionComboBox.Font = font;
positionComboBox.Editable = true;
// Insert the field at first position in the collection
fieldCollection.Insert(0, positionComboBox as PdfField);
//Save the document to disk.
document.Save("Form.pdf");
//Close the document.
document.Close(true);

'Create a new PDf document
Dim document As PdfDocument = New PdfDocument()
'Creates a new page and adds it as the last page of the document
Dim page As PdfPage = document.Pages.Add()
Dim font As PdfFont = New PdfStandardFont(PdfFontFamily.Courier, 12f)
'Create a check box
Dim checkBox As PdfCheckBoxField = New PdfCheckBoxField(page, "C#.NET")
checkBox.Bounds = New RectangleF(100, 290, 20, 20)
document.Form.Fields.Add(checkBox)
checkBox.HighlightMode = PdfHighlightMode.Push
checkBox.BorderStyle = PdfBorderStyle.Beveled
'Set the value for the check box
checkBox.Checked = True
document.Form.Fields.Add(checkBox)
Dim fieldCollection As PdfFieldCollection = document.Form.Fields
'Create a combo box
Dim positionComboBox As PdfComboBoxField = New PdfComboBoxField(page, "positionComboBox")
positionComboBox.Editable = True
positionComboBox.Bounds = New RectangleF(100, 115, 200, 20)
positionComboBox.Font = font
positionComboBox.Editable = True
' Insert the field at first position in the collection
fieldCollection.Insert(0, TryCast(positionComboBox, PdfField))
'Save the document to disk.
document.Save("Form.pdf")
'Close the document.
document.Close(True)

See Also

PdfDocument

PdfPage

PdfComboBoxField

Remove(PdfField)

Removes the specified field in the collection.

Declaration

public void Remove(PdfField field)

Parameters

Type	Name	Description
PdfField	field	The PdfField object to be removed from collection.

Examples

//Create a new PDf document
PdfDocument document = new PdfDocument();
//Creates a new page and adds it as the last page of the document
PdfPage page = document.Pages.Add();
PdfFont font = new PdfStandardFont(PdfFontFamily.Courier, 12f);
PdfFieldCollection fieldCollection = document.Form.Fields;
//Create a combo box
PdfComboBoxField positionComboBox = new PdfComboBoxField(page, "positionComboBox");
document.Form.Fields.Add(positionComboBox);
positionComboBox.Editable = true;      
positionComboBox.Bounds = new RectangleF(100, 115, 200, 20);
positionComboBox.Font = font;
positionComboBox.Editable = true;          
fieldCollection.Remove(positionComboBox as PdfField);
//Save the document to disk.
document.Save("Form.pdf");
//Close the document.
document.Close(true);

'Create a new PDf document
Dim document As PdfDocument = New PdfDocument()
'Create a page
Dim page As PdfPage = document.Pages.Add()
Dim font As PdfFont = New PdfStandardFont(PdfFontFamily.Courier, 12f)
Dim fieldCollection As PdfFieldCollection = document.Form.Fields
'Create a combo box
Dim positionComboBox As PdfComboBoxField = New PdfComboBoxField(page, "positionComboBox")
document.Form.Fields.Add(positionComboBox)
positionComboBox.Editable = True
positionComboBox.Bounds = New RectangleF(100, 115, 200, 20)
positionComboBox.Font = font
positionComboBox.Editable = True
fieldCollection.Remove(TryCast(positionComboBox, PdfField))
'Save the document to disk.
document.Save("Form.pdf")
'Close the document.
document.Close(True)

See Also

PdfDocument

PdfPage

PdfComboBoxField

RemoveAt(Int32)

Removes field at the specified position.

Declaration

public void RemoveAt(int index)

Parameters

Type	Name	Description
System.Int32	index	The index where to remove the item.

Examples

//Create a new PDf document
PdfDocument document = new PdfDocument();
//Creates a new page and adds it as the last page of the document
PdfPage page = document.Pages.Add();
PdfFont font = new PdfStandardFont(PdfFontFamily.Courier, 12f);
PdfFieldCollection fieldCollection = document.Form.Fields;
//Create a combo box
PdfComboBoxField positionComboBox = new PdfComboBoxField(page, "positionComboBox");
document.Form.Fields.Add(positionComboBox);
positionComboBox.Editable = true;
positionComboBox.Bounds = new RectangleF(100, 115, 200, 20);
positionComboBox.Font = font;
positionComboBox.Editable = true;
// Remove the first element
fieldCollection.RemoveAt(0);
//Save the document to disk.
document.Save("Form.pdf");
//Close the document.
document.Close(true);

'Create a new PDf document
Dim document As PdfDocument = New PdfDocument()
'Create a page
Dim page As PdfPage = document.Pages.Add()
Dim font As PdfFont = New PdfStandardFont(PdfFontFamily.Courier, 12f)
Dim fieldCollection As PdfFieldCollection = document.Form.Fields
'Create a combo box
Dim positionComboBox As PdfComboBoxField = New PdfComboBoxField(page, "positionComboBox")
document.Form.Fields.Add(positionComboBox)
positionComboBox.Editable = True
positionComboBox.Bounds = New RectangleF(100, 115, 200, 20)
positionComboBox.Font = font
positionComboBox.Editable = True
' Remove the first element
fieldCollection.RemoveAt(0)
'Save the document to disk.
document.Save("Form.pdf")
'Close the document.
document.Close(True)

See Also

PdfDocument

PdfPage

PdfComboBoxField

Implements

System.Collections.IEnumerable

See Also

PdfDocument

PdfComboBoxField

PdfCollection

Syncfusion.Pdf.IPdfWrapper