Triggered when a object version label modification is requested. This event occurs before the request is passed for M-Files Server.
objVer : IObjVer [ in ]
Identifies the object version.
clearFromOtherVersions : Boolean [ in ]
True if labels identified should be cleared from other object versions.
https://developer.m-files.com/APIs/COM-API/Reference/
append : Boolean [ in ]
True if labels identified should be appended to existing labels, instead of replacing existing labels.
labelIDs : IIDs [ in, out ]
Identifies the labels to set or append.
singleLabelRequired : Boolean [ in ]
True if the operation expects a single label. The callee must not specify more labels.
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.