Reference a variable with partially substituted name

[Pavel47]

Hello,

How to reference a variable if its name includes substitution ?

foreach item {aaa bbb ccc} {
checkbutton $frm_FRAME1.chkbt_$item \
-variable var_$item -text $item \
-command "puts $var_$item"
pack $frm_FRAME.chkbt_$item -anchor w
}

Execution of this code generate error:
can't read "var_": no such variable

Thanks in advance,

Pavel

 

[Bong]

I've always found I need to build it up:

set strA var_
append strA $item
....

Then, in the -command "puts $var_$item", you need to delay substitution:

-command {puts $strA}

_________________
Bob Rashkin