public EwsItemList DownloadItems(
	FolderId id,
	int startIndex,
	int count,
	bool unreadOnly,
	EwsItemParts parts
)

Public Function DownloadItems ( 
	id As FolderId,
	startIndex As Integer,
	count As Integer,
	unreadOnly As Boolean,
	parts As EwsItemParts
) As EwsItemList

Parameters

id

Type: FolderId
The ID of the folder. Null reference (Nothing in Visual Basic) not allowed.

startIndex

Type: SystemInt32
The zero-based index of the first message in the range to be downloaded.

count

Type: SystemInt32
Number of items to be downloaded.

unreadOnly

Type: SystemBoolean
If true, only unread items are considered for download; otherwise, all the items.

parts

Type: MailBee.EwsMailEwsItemParts
The settings which specify which portions of MS Exchange items to download (e.g. item ID, mail header, body, etc). You can combine multiple values.

Return Value

To specify the folder by its name, first get its ID with FindFolderIdByShortName(FolderId, String) or FindFolderIdByFullName(String) method.

With this overload you can download entire messages by passing MailMessageFull as parts parameter value.

Note
In EWS, message indices start from 0 while in IMAP and POP3 they start from 1. Also, items are returned in the default sorting order which usually means "newer first" in Exchange. In IMAP/POP3, "older first" is the default. To change sorting order, use overloads accepting the parameter of ItemView type.

Note
This method is not implemented in .NET Core. Use DownloadItemsAsync(FolderId, Int32, Int32, Boolean, EwsItemParts) instead.

Reference