Property Value

Type: IDataReader
A reference to the source of the data for mail merge, or a null reference (Nothing in Visual Basic) if this job is not a "mail merge over data reader" job.

This property can be used in single-threaded mode only. In multi-threaded mode, you usually cannot access any data from the reader as it may be accessed by concurrent threads, and they may advance the reader before you get a chance to read anything from it. Use MergeDataReaderRowValues property instead.