Dynamic variable in Repeat?

[trenatos]

I have a stack with 15 fields, and I'm hoping to create a dynamic repeat for doing some basic math.

The code below does not work, but should show what I'm trying to achieve (The fields are named price1 - price15)
Is this possible in LC?

Code: Select all

Repeat with counter = 1 to 15
      put field "price" & counter + tempPrice into tempPrice
end Repeat
put tempPrice into field "total"

[Simon]

Not sure but
put field "price" & counter + tempPrice into tempPrice
should be
put field "price" & (counter + tempPrice) into tempPrice

But show me what tempPrice should look like after the process.

Simon

[trenatos]

Hi Simon,

I tried but it breaks with; no such object near "price", char 7

Basically I'm just trying to sum up 15 price-fields and display a total.

[Simon]

Sorry try this
put field ("price" & counter) + tempPrice into tempPrice
Does that do it?

Simon

[trenatos]

Yes! That did the trick, and now I know how to make dynamic variables

[Simon]

Glad it worked.
See the counter and temprice are both numbers so liveCode adds them together first, then was looking for a field called "price1234" (whatever). Putting the parenthesis around price & count makes it perform that action first then any others.

Simon

[renevanp]

How does this work if you want to do this with a variable that is not a field or button?


I have the variables: varname1 varname2 varname3 etc

I want to do something like this :

put "xx" into ("varname") & counter

But this gives me an error : (Chunk: bad destination)

So the question is what is the right way d\to do this

Rene

[Simon]

Hi Rene,
Here it is;
do "put xx into varname" & counter
Now if that "xx" is changing then it gets a bit more complex.
do "put"&& xx &&"into varname" & counter

How's that work for you?

Simon
Edited; added &&

[FourthWorld]

Arrays....

[renevanp]

Thank you Simon and Richard
The arrays work beter for me.