Define an Expression

Define expressions in the edit area of the Expression Editor. The edit area functions much like a word processor. All entries are automatically inserted to the right of the cursor. Therefore, each time you select a numeric key, operand, or delimiter key, the character is inserted. You can also use your computer keyboard to enter an expression.

After you complete the expression, click OK or Apply to save the expression to the target object. If the expression is not valid, an error message appears to indicate the nature of the error. The cursor is positioned near or immediately after the error.