Triggered when a modification of a object-level property is requested. This event occurs before the request is passed for M-Files Server.

objID : IObjID [ in ]

Identifies the object.

propertyValue : IPropertyValue [ in, out ]

The property value to set.

The return type can be one of the types as follows:

Object

Callback object to be activated after the operation. Callback methods:

OnSuccess Method [ optional ]

Called when the operation is successfully performed.

OnError Method [ optional ]

Called when the operation failed. The call receives parameters as follows:

errorCode : Long [ in ]

The error code (HRESULT).

errorMessage : String [ in ]

The error message.

errorStack : String [ in ]

The call stack that identifies the error source in the program code.

Finally Method [ optional ]

Called after the operation was performed regardless of the operation success or failure.

Boolean

False to prevent the operation.

Null

Prevents the operation.

Supported in M-Files 9.0.3372.6 and newer.