The number of column values retrieved. If the length of the array is greater than the number of columns (ULDataReader.FieldCount),
only FieldCount items are retrieved and the rest of the array is left unchanged.
For most applications, the GetValues method provides an efficient means for retrieving all columns, rather than retrieving
each column individually.
You can pass an System.Object array that contains fewer than the number of columns contained in the resulting row. Only the
amount of data the System.Object array holds is copied to the array. You can also pass an System.Object array whose length
is more than the number of columns contained in the resulting row.
This method returns the DBNull type for NULL database columns. For other columns, it returns the value of the column in its