display an image preview when browsing for image file [Archive]

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wanye

10-23-2002, 05:57 AM

hi, how do i display an image preview on a page when i browse for an image file through a file field...?? is it better to do it in asp or javascript..?

glenngv

10-23-2002, 06:16 AM

<input type="file" name="f" onchange="document.images['preview'].src=this.value">
<p>Preview:<br>
<img name="preview" src="defaultPic.jpg">

you may want to check first if the file is an image or not.

wanye

10-23-2002, 08:10 AM

hi, then how do u check whether it is an image file in the first place..

glenngv

10-23-2002, 08:13 AM

check for the file extension