Specifies the expression based on fields in the parent table that relates to an index in the child table joining the two tables. For the Grid control, available at design time; read/write at run time. For the Relation object, available at design time; read-only at run time.
Object.RelationalExpr[ = cExpr]
- Specifies any Visual FoxPro expression, typically one that matches the child table's current index as specified by the ChildOrder property.