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Hidden field & javascript variable

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Former Member

on ‎2005 Dec 19 9:31 AM

0 Likes
958

Hi BSP experts,

within my BSP form I had to use some javascript parts. I am not really familiar with javascript and have the following problem:

I created a javascript variable:

var name = document.getElementById('name').value;

Variable 'name' is filled by a form field, but now I have the problem to fill the hidden field with the variable value (I need that hidden field for data posting):

<input type = "hidden"

name = "NAME_LAST"

id = "NAME_LAST"

value = '"NAME"' />

In my example, the value of my variable is not considered, but it is only as string interpreted.

Best regards

Tom

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Former Member
‎2005 Dec 19 10:55 AM
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Hi,

This sample code can be helpful to you,

<%@page language="abap" %>
<%@extension name="htmlb" prefix="htmlb" %>
<head>
<SCRIPT language="JavaScript">
function func()
{
<%
  if flag is initial.
%>
var txt;
txt = "Hello";
document.formBody.if01.value = txt;
document.formBody.submit();
<%
  endif.
%>
}
</SCRIPT>
</head>
<htmlb:content design="design2003" >
  <htmlb:page title  = " "
              onLoad = "func()" >
    <htmlb:form id="formBody" >
      <htmlb:inputField id      = "if01"
                        type    = "string"
                        visible = "false"
                        size    = "20" />
      <htmlb:textView text   = "<%= temp %>"
                      design = "EMPHASIZED" />
    </htmlb:form>
  </htmlb:page>
</htmlb:content>

Thanks & regards,

Ravikiran.

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Answers (2)

Answers (2)

Former Member
‎2005 Dec 19 11:14 AM
0 Likes

Use the following code

document.forms[0].elements[1].value = ' "name2" '.

if you have more than one form identify the form number and change the subscript of the array to forms[1] or forms[2] respt.

and similar case with elements[2] etc

if you dont know which elemnt is is then type the following code in your javscript.

var i = 0;

for(i=0;i<document.forms[0].elements.length;i++)

{

alert(document.forms[0].elements<i>);

alert(i);

}

here you will get the elemnt number.

then hard code the value of i

in your javscript.

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athavanraja
Active Contributor
‎2005 Dec 19 9:46 AM
0 Likes

Welcome to SDN Tom.

the stt.

var name = document.getElementById('name').value;

is to set the element (name) value to variable name.

you cannot just give the javascript variable anme in the value field. if you want to set the value for a input field thru javascript consider the following example.

<input type = "hidden"

name = "NAME_LAST"

id = "NAME_LAST"

value = "" />

<script>

document.getElementById('NAME_LAST').value = 'ABC' ;

</script>

the above script would set the value for the input field as 'ABC'.

if you want this to happen on particular action.(say a button click then make a javascript function like below and call it on click of a button.

<script>

function setVal()

{

document.getElementById('NAME_LAST').value = 'ABC' ;

}

</script>

<input type="button" name="b1" onclick=setVal();"/>

for more reading on javascript you can refer to

www.w3schools.com

www.htmlgoodies.com

Regards

Raja

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