# InputOutputColumnPair Class

## Definition

Specifies input and output column names for transformer components that operate on multiple columns.

public sealed class InputOutputColumnPair
type InputOutputColumnPair = class
Public NotInheritable Class InputOutputColumnPair
Inheritance
InputOutputColumnPair

## Remarks

It is often advantageous to transform several columns at once as all of the changes can be done in a

single data pass.

## Constructors

 Specifies input and output column names for a transformation.

## Properties

 Name of the column to transform. If set to null, the value of the OutputColumnName will be used as source. Name of the column resulting from the transformation of InputColumnName.