'Declaration
Public MustOverride Function GetFileLengthAsync( _ ByVal file As NFile _ ) As NPromise(Of Long)
'Usage
Dim instance As NFileSystemService Dim file As NFile Dim value As NPromise(Of Long) value = instance.GetFileLengthAsync(file)
public abstract NPromise<long> GetFileLengthAsync( NFile file )
Parameters
- file