Tip

Calculations In Columns In View

Have You ever have problem, that You needed to calculate data from displayed in
one column in some another without copying code?
Or in another way - have You ever, problem, that You have in view one column
which contains multi-value and you need to calculate with values in some
another column?

It was many times, wasn't it?

Is it realizable? Yes, it is. And how...
One column have e.g. following code:
@Text(Kurs_1):@Text(Kurs_2):@Text(Kurs_3):@Text(Kurs_4):@Text(Kurs_5):@Text(Kurs
_6):@Text(Kurs_7):@Text(Kurs_8):@Text(Kurs_9):@Text(Kurs_10):@Text(Kurs_11):@Tex
t(Kurs_12):@Text(Kurs_13):@Text(Kurs_14):@Text(Kurs_15):@Text(Kurs_16):@Text(Kur
s_17):@Text(Kurs_18):@Text(Kurs_19):@Text(Kurs_20):@Text(Kurs_21):@Text(Kurs_22)
:@Text(Kurs_23):@Text(Kurs_24):@Text(Kurs_25)


And the secret is hidden in that, we must attach internal name to column e.g.
"$Kurs_O" (set in column properties in last bookmark - Programatic use). Then
You can use column values in following way in another column:

HKurs := 0,07;
K := @Text(@TextToNumber($Kurs_O));
Kurs := @TextToNumber(@ReplaceSubstring(K; "@ERROR"; "1"));

ResultKurs := Kurs / HKurs;
@If(!@IsError(ResultKurs); @Text(ResultKurs); "")

This was first published in November 2000

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