PdfFileAttachment.Relationship Property

Gets or sets the relationship between the document and the attachment file.

Namespace: DevExpress.Pdf

Assembly: DevExpress.Pdf.v21.2.Core.dll

NuGet Package: DevExpress.Pdf.Core

Declaration

C#

public PdfAssociatedFileRelationship Relationship { get; set; }

VB.NET

Public Property Relationship As PdfAssociatedFileRelationship

Property Value

Type	Description
PdfAssociatedFileRelationship	A PdfAssociatedFileRelationship enumeration value that specifies the relationship between the document and the attachment file.

Available values:

Name	Description
Source	The attached file has the original source material for the associated content.
Data	The attached file represents information used to derive a visual presentation (e.g. for a table or a graph).
Alternative	The attached file specification has an alternative representation of the content (e.g., audio).
Supplement	The attached file represents a supplemental representation of the original source or data.
EncryptedPayload	The file specification is an encrypted payload document that should be displayed to the user if the PDF Document Processor has the cryptographic filter needed to decrypt the document.
Unspecified	The relationship is unknown or does not match any relationship above.

Example

View Example

Program.cs

using DevExpress.Pdf;
using System;
using System.IO;

using (PdfDocumentProcessor processor = new PdfDocumentProcessor())
{
    // Load a document.
    processor.LoadDocument("..\\..\\Document.pdf");

    // Attach a file to the PDF document. 
    processor.AttachFile(new PdfFileAttachment() {
        CreationDate = DateTime.Now,
        Description = "This is my attach file.",
        FileName = "MyAttach.txt",
        Data = File.ReadAllBytes("..\\..\\FileToAttach.txt")
    });

    // The attached document.
    processor.SaveDocument("..\\..\\Result.pdf");
}

Program.vb

Imports DevExpress.Pdf
Imports System
Imports System.IO

Shared Sub Main(ByVal args() As String)

    Using processor As New PdfDocumentProcessor()
        ' Load a document.
        processor.LoadDocument("..\..\Document.pdf")

        ' Attach a file to the PDF document. 
        processor.AttachFile(New PdfFileAttachment() With { _
            .CreationDate = Date.Now, _
            .Description = "This is my attach file.", _
            .FileName = "MyAttach.txt", _
            .Data = File.ReadAllBytes("..\..\FileToAttach.txt") _
        })

        ' The attached document.
        processor.SaveDocument("..\..\Result.pdf")
    End Using
End Sub