In layout - I need to pass an amount field (type curr) by perform command to do some calculations. The problem...
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is that the field, as input parameter to the ABAP form, is of type c. how should I convert it to decimal for the calculations?
You can directly convert. The following code is perfectly valid, as long c_num is a valid representation of a decimal number. and the destination field is defined large enough to contain the source value, otherwise you will get a runtime error.
Data: c_num(16) value '123.45', f_num type f, p_num type p decimals 2. p_num = c_num. f_num = c_num.
Determining that c_num is a valid representation of a decimal number is not always trivial. For your case, using Perform from a layout set, you probably won't have to worry about this - i.e. the field will always be valid, or initial.
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