CreateAttachmentType Class

Definition

public ref class CreateAttachmentType : ExchangeWebServices::BaseRequestType

public class CreateAttachmentType : ExchangeWebServices.BaseRequestType

Public Class CreateAttachmentType
Inherits BaseRequestType

Inheritance

Object

BaseRequestType

CreateAttachmentType

Examples

The following code example shows a create attachment request that creates a file and item attachment on an existing item in the Exchange database.

static void CreateAttachment(ExchangeServiceBinding esb)
{
    // Create the item attachment.
    MessageType message = new MessageType();
    message.Subject = "Example subject";
    message.Importance = ImportanceChoicesType.Low;
    message.ImportanceSpecified = true;

    ItemAttachmentType itemAttach = new ItemAttachmentType();
    itemAttach.Name = "Message Attachment Example";
    itemAttach.Item = message;

    // Create the file attachment.
    FileAttachmentType fileAttach = new FileAttachmentType();
    fileAttach.Name = "filename.txt";
    fileAttach.ContentType = "text/plain";

    byte[] content;
    using (FileStream fileStream = new FileStream("C:\\cas.txt",
        FileMode.Open, FileAccess.Read))
    {
        content = new byte[fileStream.Length];
        fileStream.Read(content, 0, content.Length);
    }

    fileAttach.Content = content;

    // Create the CreateAttachment request.
    CreateAttachmentType <span class="label">reqCreateAttach</span>= new CreateAttachmentType();

    // Identify the item that will have the attachments.
    ItemIdType item = new ItemIdType();
    item.Id = "AAAlAE1BQG1h";
    item.ChangeKey = "DwAAABYAAA"; 

    // Add the parent item to the request.
<span class="label">reqCreateAttach</span>.ParentItemId = item;

    // Add attachments to the request.
<span class="label">reqCreateAttach</span>.Attachments = new AttachmentType[2];
<span class="label">reqCreateAttach</span>.Attachments[0] = itemAttach;
<span class="label">reqCreateAttach</span>.Attachments[1] = fileAttach;

    try
    {
        CreateAttachmentResponseType resp = esb.CreateAttachment(<span class="label">reqCreateAttach</span>);
        ArrayOfResponseMessagesType aorit = resp.ResponseMessages;
        ResponseMessageType[] rmta = aorit.Items;

        foreach (ResponseMessageType rmt in rmta)
        {
            if (rmt.ResponseClass == ResponseClassType.Success)
            {
                AttachmentInfoResponseMessageType airmt = rmt as AttachmentInfoResponseMessageType;
                foreach (AttachmentType atch in airmt.Attachments)
                {
                    if (atch is ItemAttachmentType)
                    {
                        Console.WriteLine("Created item attachment");
                    }
                    else if (atch is FileAttachmentType)
                    {
                        Console.WriteLine("Created file attachment");
                    }
                    else
                    {
                        throw new Exception("Unknown attachment");
                    }
                }
            }
        }
    }
    catch (Exception e)
    {
        Console.WriteLine(e.Message);
    }
}

Remarks

You cannot attach an existing item to another item. To attach the contents of an existing item, pass the MimeContent of the existing item to the attachment that you want to create. Make sure that you null out all properties that are returned for an existing item. Only the Multipurpose Internet Mail Extensions (MIME) content should be used in the attachment. If you try to attach an existing item to another item, the response will contain an error because the Exchange database cannot include duplicate item identifiers.

Constructors

Properties

Applies to