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text input autoresize javascript

Posted on 2008-10-29
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Last Modified: 2012-05-05
I need to make an input / textbox autoresize to the width of its contents.

dim w
w = document.getElementsByName("T1").textwidth("text")
document.getElementsByName("T1").width = w

does not work.
Thanks
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Question by:sidwelle
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5 Comments
 
LVL 82

Expert Comment

by:hielo
ID: 22834831
Give your input box an id="T1" as well and then try:

dim w
w = Len( document.getElementById("T1").value )
document.getElementById("T1").size = w
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Author Comment

by:sidwelle
ID: 22835116
dim w
w = Len( document.getElementById("T1").value )
document.getElementById("T1").width = (w * 7) + 7

This kinda works, but not all the time.  I was looking for some auto feature.
Or an AutoSize would be cool ...
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LVL 82

Accepted Solution

by:
hielo earned 1500 total points
ID: 22835303

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
 "http://www.w3.org/TR/html4/loose.dtd">
 
<html>
<head>
<title></title>
<script type="text/vbscript">
Sub resizeBox
	Dim w
	w = Len( document.getElementById("T1").value ) + 1
	document.getElementById("T1").size=w
End Sub
</script>
</head>
<body>
	<input type="text" size=1 name="T1" id="T1" onkeypress="resizeBox "/>
</body>
</html>

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Author Comment

by:sidwelle
ID: 22835585
Any way to do this automatic ?, the kerning fonts leave a little to be desired.
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LVL 82

Expert Comment

by:hielo
ID: 22835766
>>Any way to do this automatic ?,
No. You will need to use scripting as shown previously
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