Dynamically refering to form fields

nero · Dec 18, 2001

I have a jsp form which dynamically populates a <select> with existing roles, the code then creates corresponding hidden fields to hold the values of the select options as I cannot store the name of the option in the options value.

what I'm trying to do here is onChange in the select, I simply want to output the value of the hidden field value corresponding to the option within the select.

I am currently getting an "Expected ';'" at the
var myVal = eval("document.myForm." + i + ".value&quot

;
line every time this is executed.

Anyone have any ideas?

Thanks in advance.

The following is a snippet from my code:

function selectSalesOffice() {
for (i=0; i<document.myForm.EXISTINGROLES.length; i++) {
var myVal = eval("document.myForm." + i + ".value&quot

;
alert(myVal);
}
}

<form name=myForm>
<SELECT name=EXISTINGROLES onChange="selectSalesOffice();">
<OPTION value="notSelected"> Admin
<OPTION value="notSelected" selected> User
<OPTION value="notSelected"> Viewer
</SELECT>

<input type=hidden name=0 value=Admin>
<input type=hidden name=1 value=User>
<input type=hidden name=2 value=Viewer>

Guest_imported · Dec 19, 2001

hi nero!!

Go thru this code it may solve problem still do u have problem let me know/explain clearly.

-ravikumar

<HTML>
<HEAD>
<META NAME="GENERATOR" Content="Microsoft Visual Studio 6.0">
<TITLE></TITLE>
</HEAD>
<BODY>

<P> </P>
<SCRIPT LANGUAGE=javascript>

function selectSalesOffice(val) {
var myVal=val;
alert(myVal);
}

</SCRIPT>

<form name=myForm>
<SELECT name=EXISTINGROLES onChange="selectSalesOffice(this.value);">
<OPTION value="0"> Admin
<OPTION value="1" selected> User
<OPTION value="2"> Viewer
</SELECT>

<input type=hidden name=0 value=Admin>
<input type=hidden name=1 value=User>
<input type=hidden name=2 value=Viewer>
</BODY>
</HTML>

tsdragon · Dec 19, 2001

For some reason, javascript does not like having .value in an eval, but this will work:

Code:

    var myObj = eval(&quot;document.myForm.&quot; + i);
    var myVal = myObj.value;

Tracy Dryden
tracy@bydisn.com

http://www.bydisn.com

Meddle not in the affairs of dragons,
For you are crunchy, and good with mustard.

nero · Dec 19, 2001

Thanks you guys.

It's all working now.

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Dynamically refering to form fields

nero

Programmer

Guest_imported

New member

tsdragon

Programmer

nero

Programmer

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