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Fetching field value

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Jun 27.2005

Good Day,

I’m constructing a form field name on the fly:

var RulesFieldName = “document.asform.” + “Rulest3.value”;

The following two alerts show “document.asform.Rulest3.value”:
alert(RulesFieldName);
alert(RulesFieldName.valueOf());

I would like to fetch the value which is stored in this field.

Any ideas?

Thanks,
Dan

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JavaScript

4 Comments(s) ↴

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@crh3675Jun 27.2005 — Your code is kind of buggy. Are you trying to get the value of the Rulest3 field to generate the name of a field that holds another value?

If that's the case, all you need is:

<i>
</i>var RulesFieldName = document.forms["asform"].Rulest3.value;
alert(RulesFieldName);
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@Dan_DrillichauthorJun 27.2005 — Craig,

I'm trying to figure out what the name of the matching field is. For example:

<input type="text" name="CenterName" value="aa" >

<input type="hidden" name="RulesCenterName" value="t" >

When I iterate through the text fields, I would like to find out the value stored in the matching hidden field. So, in the above example, RulesCenterName matches the text CenterName field.

I hope it's clearer now.

-- Dan
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@crh3675Jun 27.2005 — Oh, that's easy:

<i>
</i>&lt;form name="asform"&gt;
&lt;input type="text" name="CenterName" value="aa" &gt;
&lt;input type="hidden" name="RulesCenterName" value="t" &gt;

&lt;input type="button" onclick="soitbe()"&gt;
&lt;/form&gt;


&lt;script&gt;
function soitbe(){
var f=document.forms['asform'];
var fld=f.CenterName;
var fldVal1=fld.value;
var fldVal2="";

<i> </i>for(i=0;i&lt;f.elements.length;i++){
<i> </i> var regexp=eval("/"+fld.name+"$/");
<i> </i> if(f.elements[i].name.match(regexp) &amp;&amp; f.elements[i].name!=fld.name){
<i> </i> fldVal2=f.elements[i].value;
<i> </i> break;
<i> </i> }
<i> </i>}
<i> </i>alert(fldVal1+":"+fldVal2)
}
&lt;/script&gt;
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@Dan_DrillichauthorJun 27.2005 — Thank You Craig!

Based on your previous advice I got the following to work:

alert(document.forms[fName].elements["Rules" + element.name].value);

-- Dan
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