Using Eval to set dynamic object names

[webteam]

I've ran into a little trouble with Eval, hoping someone can point it
out to me

This code works :

var_ktml = "textarea2"
Set ktml_textarea2 = new ktml4
Eval("ktml_" & var_ktml).Init var_ktml

This code doesn't :

var_ktml = "textarea2"
Set Eval("ktml_" & var_ktml) = new ktml4
Eval("ktml_" & var_ktml).Init var_ktml


Can anyone point out the error of my ways ?

Cheers,
Mark

 

[Anthony Jones]

I've ran into a little trouble with Eval, hoping someone can point it
out to me

This code works :

var_ktml = "textarea2"
Set ktml_textarea2 = new ktml4
Eval("ktml_" & var_ktml).Init var_ktml

This code doesn't :

var_ktml = "textarea2"
Set Eval("ktml_" & var_ktml) = new ktml4
Eval("ktml_" & var_ktml).Init var_ktml


Can anyone point out the error of my ways ?

Simple, stop using Eval.

Use an array or even Scripting.Dictionary to collect and lookup objects

 

[Bob Barrows [MVP]]

I've ran into a little trouble with Eval, hoping someone can point it
out to me

This code works :

var_ktml = "textarea2"
Set ktml_textarea2 = new ktml4
Eval("ktml_" & var_ktml).Init var_ktml

This code doesn't :

var_ktml = "textarea2"
Set Eval("ktml_" & var_ktml) = new ktml4
Eval("ktml_" & var_ktml).Init var_ktml


Can anyone point out the error of my ways ?

Sure. You see that line that starts with "Eval ... "? That's the problem
right there*.
Try this instead:

dim var_ktml,ktml_objs, ktml_obj
set ktml_objs = createobject("scripting.dictionary")
var_ktml = "textarea2"
Set ktml_obj = new ktml4
ktml_objs.Item("ktml_" & var_ktml) = ktml_obj


When you want to use the object:

Set ktml_obj = ktml_objs.Item("ktml_" & var_ktml)
ktml_obj.Init var_ktml
ktml_objs.Item("ktml_" & var_ktml) = ktml_obj

Bob Barrows
* http://blogs.msdn.com/ericlippert/archive/2003/11/01/53329.aspx