This .NET class wraps the AcDbLinetypeTable ObjectARX class. 

This class is the symbol table for LinetypeTableRecords, which represent the linetypes within a drawing database.

Autodesk.AutoCAD.DatabaseServices.DBObject
    Autodesk.AutoCAD.DatabaseServices.SymbolTable
        Autodesk.AutoCAD.DatabaseServices.LinetypeTable

Public sealed Class LinetypeTable
Inherits SymbolTable
Inherits IEnumerable

public sealed class LinetypeTable : SymbolTable, IEnumerable;