Indicates whether a string contains a valid list of ranges
            
            
            
            
            
            
            
            
            'Declaration
 
Public Shared Function IsValidList( _
   ByVal  As String _
) As Boolean
             
        
            
            public static bool IsValidList( 
   string 
)
             
        
             
        
            Parameters
- value
 
- The string to check
 
            
            Return Value
Returns true if the  contains at least one valid range and contains no invalid items. Returns false if  is empty or contains any invalid items.