/// <summary>
 /// Equals function to compare class
 /// </summary>
 public virtual bool Exists(Int32 id)
 {
     try
     {
         DataAccess.MaterialGroups materialGroups = new DataAccess.MaterialGroups();
         return(materialGroups.GetById(id) != null);
     }
     catch (Exception ex)
     {
         Trace.WriteError("{0}", Trace.GetMethodName(), CLASSNAME, ex, id);
         throw;
     }
 }
 /// <summary>
 /// Get a MaterialGroup by id from the database
 /// </summary>
 public virtual Model.MaterialGroup GetById(Int32 id)
 {
     try
     {
         DataAccess.MaterialGroups materialGroups = new DataAccess.MaterialGroups();
         Model.MaterialGroup       result         = materialGroups.GetById(id);
         return(result);
     }
     catch (Exception ex)
     {
         Trace.WriteError("{0}", Trace.GetMethodName(), CLASSNAME, ex, id);
         throw;
     }
 }