[This is preliminary documentation and subject to change.]
Returns the zero-based index of the first occurrence of a Level in the LevelCollection.
LevelCollection. The zero-based index of the first occurrence of item in the entire LevelCollection, if found; otherwise, -1.
Missing <remarks> documentation for M:log4net.Core.LevelCollection.IndexOf(log4net.Core.Level)
LevelCollection Class | log4net.Core Namespace