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 ASP Classic and AJAX |
| Posted by Mike on Apr-11-2012 04:31 |
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I want to use AJAX xmlhttp to pass a variable to a chart page:
example:xmlhttp.open("GET","threedpie_oh.asp?u="+stru,true); and have the chart return then image with the updated data.
Mike |
| Re: ASP Classic and AJAX |
| Posted by Peter Kwan on Apr-12-2012 00:32 |
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Hi Mike,
You can freely pass variable to a chart page. However, note that XML supports only XML (or text). It does not support images. It only supports <IMG> tags that reference images, not the images themselves. For example, you cannot even load a static image using XML (eg. xmlhttp.open("GET","aaa.jpg",true)).
If you must use xmlhttp, your ASP script should return an <IMG> tag instead. The SRC attribute of the <IMG> tag should contain the result of "threedpie_oh.asp?u="+stru. But if the purpose of the ASP script is just to return an <IMG> tag that references another script "threedpie_oh.asp", I think you should not need to use xmlhttp at all. You can just use Javascript to insert an <IMG> tag with the appropriate SRC attribute in your web page.
Hope this can help.
Regards
Peter Kwan |
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