Begins asynchronous DeleteFolderContent operation. Deletes content of an exchange folder. Folder itself remains. To delete the folder as well, see DeleteFolder(EwsFolderId) method. This method is supported in Exchange 2010 SP1 (14.1.218.15) and newer. Use DeleteMode to specify whether delete folder content permanently or move it to Deleted Items folder.

Public Function BeginDeleteFolderContent ( _
	folderId As EwsFolderId, _
	deleteSubfolders As EwsDeleteScope, _
	callback As AsyncCallback, _
	state As Object _
) As IAsyncResult

public IAsyncResult BeginDeleteFolderContent(
	EwsFolderId folderId,
	EwsDeleteScope deleteSubfolders,
	AsyncCallback callback,
	Object state
)