AttachmentCollectionAdd Method (Byte, String, String, String, HeaderCollection, NewAttachmentOptions, MailTransferEncoding)
Adds the attachment from a byte array.

Namespace: MailBee.Mime
Assembly: MailBee.NET (in MailBee.NET.dll) Version: 12.2.0 build 630 for .NET 4.5
public void Add(
	byte[] data,
	string targetFilename,
	string contentID,
	string contentType,
	HeaderCollection customHeaders,
	NewAttachmentOptions options,
	MailTransferEncoding mailEnc


Type: SystemByte
The binary content of the attachment represented as a byte array.
Type: SystemString
The filename under which to add the attachment into the collection. If an empty string, the attachment will have no name.
Type: SystemString
The content identifier (CID) of the attachment (for inline attachments), or empty string if the attachment is not inline.
Type: SystemString
The content type of the attachment, or a null reference (Nothing in Visual Basic) to let MailBee detect the content type automatically.
Type: MailBee.MimeHeaderCollection
The collection of the headers which should be included into the header section in additon to the standard attachment headers. If a null reference (Nothing in Visual Basic), no custom headers will be added.
Type: MailBee.MimeNewAttachmentOptions
The options which affect how the attachment is added.
Type: MailBee.MimeMailTransferEncoding
The mail encoding to use when placing the attachment data into the message.
MailBeeInvalidArgumentExceptiondata or targetFilename is a null reference (Nothing in Visual Basic).
Note Note
If you're attaching another e-mail message, be sure to use as None as mailEnc value. Some mail services cannot decode attached emails if they are Base64-encoded.
This sample reads a file into memory buffer and adds it as attachment to the message.
Note Note
In real-world apps, it's easier to use Add(String) overload to add an attachment from a file.
// To use the code below, import these namespaces at the top of your code.
using System.IO;
using MailBee;
using MailBee.Mime;

// Create new data buffer as binary array.
byte[] fileData = null;

// Open a file for reading.
using (FileStream fs = new FileStream(@"C:\Temp\1.gif", FileMode.Open))
    // Set the size of the buffer.
    fileData = new byte[fs.Length];

    // Create new BinaryReader object.
    BinaryReader br = new BinaryReader(fs);

    // Read binary data from file to buffer.
    br.Read(fileData, 0, fileData.Length);

// Create a new MailMessage object.
MailMessage msg = new MailMessage();

// Add an attachment to the message.
msg.Attachments.Add(fileData, "my.gif", "<12s4a8a8778c$5664i1b1$ir671781@tlffmdqjobxj>", "image/gif", null, NewAttachmentOptions.None, MailTransferEncoding.Base64);
See Also