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ExternalResourceLoadContent.Version

Property
Description:
The version of the external data that the server is providing in this object.
Remarks:

When its LoadResource() method is invoked, an IExternalResourceServer can indicate the version of the data that it is providing to Revit by setting this property. Doing so will improve performance, because Revit will use the version information to avoid unnecessary reloads.

See GetResourceVersionStatus(ExternalResourceReference).

Syntax
public string Version { get; set; }
Exceptions
Exception Condition
ArgumentNullException When setting this property: A non-optional argument was null