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Luqman, You can have a CHECK(ER) on field 2. The programme takes control again, calculates the value of filed 3 and EXFMT the screen again. You have to catch this within your programme, perhaps an indicator to check if field three has been calculated or field 2 has been changed (keyword CHANGE(xx) on the field). Regards, Carel Teijgeler *********** REPLY SEPARATOR *********** On 23-7-05 at 19:30 Luqman wrote: >There are 3 fields in my record format. > >If :- >field1=2 >field2=3 >field3 should be: field1 * field2 > >How can I do this in Display Format ? > >I mean, sooner any of the field value changes and user press field exit key, >the result should be calculated and displayed in field3. > >Or can we call some procedure in field1 and field2, if so, how and in what >event ?
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