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Subject:
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How to modify hidden value?
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Posted By:
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Edward King
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Post Date:
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1/20/2006 9:35:32 PM
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I have a HTML file,there are hidden parameter in in this HTML,hidden parameter name is made of "test"+number,such as
<form name="test" id="test">
<input type="hidden" name="test0" value="9">
<input type="hidden" name="test1" value="5">
<input type="hidden" name="test2" value="6">
<input type="hidden" name="test3" value="1">
</form>
I want to dynamic modify the hidden value,for example
i=3 //the value of i is get dynamic,i=2 or i=3 or any number
test.test<i>.value="99"
I know above sentence is error,how to write it correctly?
Thanks!
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Reply By:
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vinod_yadav1919
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Reply Date:
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1/21/2006 12:18:59 AM
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Hii Edward King!!
Use
eval("document.formname.textboxname"+i).value=new_value
in ur case
eval("document.test.test"+i).value=newvalue
<script>
function setHiddenValue(obj)
{
value1=obj.value
eval("document.test.test"+value1).value=value1;
}
</script>
<form name="test" id="test">
<input type="text" name="test0" value="9">
<input type="text" name="test1" value="5">
<input type="text" name="test2" value="6">
<input type="text" name="test3" value="1">
<select name="val" onchange="setHiddenValue(this)">
<option value="0">0</option>
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select>
</form>
Change type=text to hidden in ur code
hope this will help you
Cheers :)
vinod
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Reply By:
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joefawcett
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Reply Date:
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1/21/2006 4:44:25 AM
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In my opinion anyone who uses "eval" for a task like this should be drummed out of the programmers guild.
function setElementValue(FormName, ElementName, Value)
{
document.forms[FormName].elements[ElementName].value = Value;
}
//Example
setElementValue("test", "test" + 3, 99);
--
Joe (Microsoft MVP - XML)
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