CreateElement("SELECT") and check value select

gialby · Joined: 10 May 2006 Posts: 4

i have a web form where a select is created client side by in dhtml from vbscript function:

function creascuola(caso)

vettore=ARRAY("SELEZIONARE SCUOLA","CERVI","FOSCOLO","GAROFANI","MONTE AMIATA","MILANO","MINCIO","ORCHIDEE")

if caso=1 then

scuole.innerHTML=""
Set label = document.CreateElement("label")
label.innerHTML="SCUOLE:"
Set objSelect = document.CreateElement("SELECT")
objSelect.name="scuola"

for i=0 to 7
Set objOption = document.CreateElement("option")
objOption.text=vettore(i)
objOption.value=i
objSelect.options.add(objOption)
next

scuole.appendChild(label)
scuole.appendChild(objSelect)
else
scuole.innerHTML=""

end if
end function

The script create a select without problem. After this when the user submit the form start a check function of the selected value. But i have problem to check the value of the select created by dhtml.

if document.getElementByName("scuola").value=0 then
msgbox "ERRORE"
exit sub
end if

The browser send me a error "Property not supported from the object 'document.getElementByName'".
I don't know where is the error.
Please somebody help me!

Gianluca[/b]

kanenas · Joined: 14 Dec 2004 Posts: 191

The function is named "getElementsByName" (note "Elements" is plural) and it returns a collection of nodes. Change the code to:

gialby · Joined: 10 May 2006 Posts: 4

thanks...
but i try without solution

i try
document.getElementsByName("scuola")[0].value
and
document.getElementsByName("scuola").value=0
and
document.form.scuola.value=0

the select is create but i can't get value form it...
The error is always property is not support

Maybe i need to check value of the dynamic select in different way?

Gianluca

gialby · Joined: 10 May 2006 Posts: 4

i solve problem. i used the id property.

function creascuola(caso)
vettore=ARRAY("SELECT","CERVI","FOSCOLO","GAROFANI","MONTE AMIATA","MILANO","MINCIO","ORCHIDEE")
if caso=1 then
scuole.innerHTML=""
Set label = document.CreateElement("label")
label.innerHTML="SCUOLE:"
Set objSelect = document.CreateElement("SELECT")
objSelect.name="scuola"
objSelect.id="sc"

for i=0 to 7
Set objOption = document.CreateElement("option")
objOption.text=vettore(i)
objOption.value=i
objSelect.options.add(objOption)
next
scuole.appendChild(label)
scuole.appendChild(objSelect)
else
scuole.innerHTML=""
end if
end function

check function

if document.getElementById("sc").value=0 then
msgbox "errore"
document.getElementById("sc").focus()
exit sub
end if

i don't know by name i can't get value but by id i have not problem.
thanks
Gianluca

tuonghd · Joined: 14 Mar 2007 Posts: 1