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Db > Db Assembly Interfaces > ITableField > ITableField.Expression

ITableField.Expression

Syntax

Expression: IExpression;

Description

The Expression property returns expression of calculated field. If the field is not calculated, the empty value is returned.

Example

Sub UserProc;
Var
    MB: IMetabase;
    Table: ITable;
    Fields: ITableFields;
    Field: ITableField;
    Expr: String;
Begin
    MB:=MetabaseClass.Active;
    Table:=MB.ItemById("TABLE_1").Bind As ITable;
    Fields:=Table.Fields;
    Field:=Fields.Item(0);
    Expr:=Field.Expression.AsString;
End Sub UserProc;

After executing the example, the Expr variable contains the expression of the first field of table with the Table_1 identifier.

See also:

ITableField