private void UpdateSpecification(bool allow, ETypeSpecification specification)
 {
     if (allow && !TypeSpecification.Items.Contains(specification))
     {
         TypeSpecification.Items.Add(specification);
     }
     else if (!allow && TypeSpecification.Items.Contains(specification))
     {
         TypeSpecification.Items.Remove(specification);
     }
 }
 private void UpdateSpecification(bool allow, ETypeSpecification specification)
 {
     if (allow && !TypeSpecification.Items.Contains(specification))
     {
         TypeSpecification.Items.Add(specification);
     }
     else if (!allow && TypeSpecification.Items.Contains(specification))
     {
         TypeSpecification.Items.Remove(specification);
     }
 }