List of columns to be processed specifically depends on COPY process direction in CSV mode.
Fill ForcedColumns to include specific processing of some columns in CSV mode. If TPSQLCopy receives data from server then it forces quoting to be used for all non-NULL values in each specified column. NULL output is never quoted.
In sending data mode process each specified column as though it were quoted and hence not a NULL value. For the default null string in CSV mode (''), this causes missing values to be input as zero-length strings.
Property has no effect if coCSV is not included into Options property is specified.