Gets and sets the ID of the message object for all the layer’s features.
| JavaScript | 
 | 
| MessageID | |
| C# | 
 | 
| string MessageID { get; set; } | |
| C++ | 
 | 
| HRESULT MessageID([out, retval] BSTR* pVal) HRESULT MessageID([in] BSTR pVal); | |