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property Expression: string read GetExpression write SetExpression;


__property System::UnicodeString Expression = {read=GetExpression, write=SetExpression};


Type Visibility Source Unit Parent
property published
Data.DB TIndexDef


Contains a dBASE key expression.

Read Expression to learn the key expression of a dBASE expression index. This property is only used on the Windows product, where there are components that can represent dBASE tables.

A key expression for a dBASE table is a field name, or a combination of field names, functions, and operators that specifies how the index orders records in the table. If the table is not a dBASE table or the index is not an expression index, Expression is an empty string and the Fields property contains the field(s) for the index. When the index is a dBASE expression index, Expression contains a value and the Fields property contains an empty string.

Note: For more information about key expressions, see your dBASE documentation.

See Also