axapta - AX 2012 Form control and calculation -


hi new ax 2012 development, can me calculate 2 fields in form. example currentkm , actualkm. need display difference of these 2 fields in third field using calculation kmdiff = actualkm - currentkm. how can achieve on form level? appreciate if can support me in this.

make controls auto declared, can reference them name. control property autodeclaration expand + @ data entry control. on methods node right click, override method, modified. there fetch entered data realvalue method. control3.realvalue(control1.realvalue()-control2.realvalue()); strictly form controls, if these fields in table, different.


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