Microsoft KB Archive/75611

{| = Error Message: This Value Cannot Be Changed =
 * width="100%"|

Last reviewed: November 2, 1994

Article ID: Q75611

SUMMARY
The error message &quot;This value cannot be changed&quot; will occur when you try to edit a computed column in a query. This is correct behavior.

Because a computed column is the result of a calculation, changing an element can affect the entire column; therefore, it is not allowed.

Steps to Reproduce Error Message

 * 1) Start Q+E.
 * 2) Load the example file EMP.DBF from the QE subdirectory.
 * 3) Highlight the SALARY column.
 * 4) From the Layout menu, choose Define Column.
 * 5) Type &quot;TEST&quot; (without the quotation marks) in the Heading box.
 * 6) Under Expression, type &quot;salary+1000&quot; (without the quotation marks).
 * 7) Choose Add and then press ENTER to insert the new column.
 * 8) From the Edit menu, choose Allow Editing.
 * 9) Select one field in the column TEST and enter a number.