AttachmentContentId - свойство

Gets or sets the content Id of the attachment. ContentId can be used as a custom way to identify an attachment in order to reference it from within the body of the item the attachment belongs to.

public string ContentId { get; set; }

Public Property ContentId As String
	Get
	Set

public:
property String^ ContentId {
	String^ get ();
	void set (String^ value);
}

member ContentId : string with get, set