AttachmentBase.ContentId Property   
Definition
Important
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Gets or sets the MIME content ID for this attachment.
public:
 property System::String ^ ContentId { System::String ^ get(); void set(System::String ^ value); };public string ContentId { get; set; }member this.ContentId : string with get, setPublic Property ContentId As StringProperty Value
A String holding the content ID.
Exceptions
Attempted to set ContentId to null.