Adds the elements of another LevelCollection to the current LevelCollection.
            
Namespace: log4net.CoreAssembly: log4net (in log4net.dll) Version: 1.2.14.0 (1.2.14.0)
Syntax
Parameters
- x
 - Type: log4net.Core LevelCollection
The LevelCollection whose elements should be added to the end of the current LevelCollection. 
Return Value
Type:The new Count of the LevelCollection.
See Also