CreateDialog[] doesn't return its local variable

Question

Just trying to build a dialog window for picking items from the list. However it doesn't work as expected. Here is the simplified example

CreateDialog[
 Table[Button["press", DialogReturn[ret = i]], {i, 1, 3}]
 ]

then

In[10]: ret
Out[10]: i

I expected to return the number I clicked. Could you help me to solve this issue/feature? :)

score 2 · Accepted Answer · answered Oct 07 '21 at 11:39

2

This will work as you expect:

CreateDialog[
 Table[With[{i = i}, Button["press", DialogReturn[ret = i]]], {i, 1, 
   3}]]

answered Oct 07 '21 at 11:39

Rolf Mertig

Oh God. I should probably care more about these specific functions. – Kirill Vasin Oct 07 '21 at 11:42
Thank you a lot! – Kirill Vasin Oct 07 '21 at 11:42
1

DialogReturn has attribute HoldFirst. That is why With helps here. – Rolf Mertig Oct 07 '21 at 11:46

1 Answers1