是否可以保存ItemAttachment？对于FileAttachment,我们使用以下EWS托管API代码进行保存,
if(attachment is FileAttachment)
{
FileAttachment fAttachment = new FileAttachment();
fAttachment.Load("D:\\Stream" + fAttachment.Name);
}
那么ItemAttachment呢？我们如何在指定的文件中保存这样的ItemAttachment？
解决方法
当然这不是一个紧迫的问题,但我想我会分享给未来的人,就像我一样.
对于ItemAttachments,你需要加载项目的MimeContent,然后你可以简单地写入文件/输出[“.eml”,“.msg”]：
if (attachment is FileAttachment)
{
FileAttachment fileAttachment = attachment as FileAttachment;
// Load attachment contents into a file.
fileAttachment.Load(<file path>);
}
else // Attachment is an ItemAttachment (Email)
{
ItemAttachment itemAttachment = attachment as ItemAttachment;
// Load Item with additionalProperties of MimeContent
itemAttachment.Load(EmailMessageSchema.MimeContent);
// MimeContent.Content will give you the byte[] for the ItemAttachment
// Now all you have to do is write the byte[] to a file
File.WriteAllBytes(<file path>,itemAttachment.Item.MimeContent.Content);
}
