GridViewLayoutItemCollection.AddColumnItem Method

Name	Parameters	Description
AddColumnItem(GridViewColumnLayoutItem)	layoutItem	Adds the specified item to the GridViewLayoutItemCollection collection.
AddColumnItem(String, String)	columnName, caption	Creates a new item with the specified settings and adds it to the GridViewLayoutItemCollection collection.
AddColumnItem(String)	columnName	Creates a new item assigned to the specified column name and adds it to the GridViewLayoutItemCollection collection.