This feature will be removed in a future version of Microsoft SQL Server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature.
The DoAlter method marks the end of a unit of change for the object referenced and submits changes made to property values.
Outside of a BeginAlter/DoAlter block, each change to a SQL Distributed Management Objects (SQL-DMO) object causes a discrete update to the referenced Microsoft SQL Server component. Group multiple SQL-DMO changes by calling the BeginAlter method.
All SQL-DMO property changes made after the BeginAlter method are submitted to SQL Server the next time DoAlter is called on the object. Changes are discarded if the CancelAlter method is called.