DbfColumn Class

Can the field be sorted?

Field type as 1 character string.

Is it an autoincrement ?

Is it binary ?

Is it a compressed field (not implemented yet) ?

Is it an encryped field (not implemented yet)?

Is it a memo ?

Is it nullable ?

Is it a standard Dbase 3 field (CDLMN) ?

Is it a unicode text ?

Is it a variable length field ?

Is it a VFP extended field ?

Dynamic list of optional properties, such as Caption, Description.

Return the blank (non null) value of the column.

Clone a RddFieldInfo object.

Copy values from one object to another.

Create a DbfColumn class, used when creating files.

Create a DbfColumn class, based on the definition in the DBF. Used when opening a file.

Get the default "empty" value, as you would get at EOF

Get the value from the buffer

Handle NULL values.

Initialize the buffer used for appends. Gets called once when a DBF is opened.

Update the buffer after appending. For example for AutoIncrement or TimeStamp columns.

Write the value to the buffer

Check if two fields match in type, length and decimals.

Validate combinations of type, length and decimals.

Alternative name, no length limit. This is the Caption for VFP fields

Decimal positions

Field Type

Flags, such as Nullable, AutoIncrement, Binary etc.

Physical length in the table

Name, normally max 10 characters

Offset in the record buffer for DBF fields.

1 based Ordinal position in the RDD.