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Calling an ASP.Net sub from an HTML Link

Posted on 2004-10-08
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Last Modified: 2012-06-21
Hi,

I'm pretty sure that because what I'm doing is client side as opposed to server side, its not actually possible. However, I thought I'd ask anyway! I'm trying to call an ASP.Net sub from an HTML link using the onClick method. When I do this, I get the undefined error (In my case "Submit" is undefined). What I'm trying to do is this: I have two buttons below a form which submit a username and password to be checked. The problem is that I did not want to use the regular styling of asp buttons, and so tried to use an <img> imbedded in a link to submit the form instead. Is this possible any other way? Thanks for your advice.
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Question by:Screwi
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Thogek earned 150 total points
ID: 12264370
Try replacing your <img> tag with:

    <input type="image" src="yourImage.gif" />

More info at http://msdn.microsoft.com/workshop/author/dhtml/reference/objects/input_image.asp
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Author Comment

by:Screwi
ID: 12265657
Thanks, Thogek. I didn't exactly use your suggetion, instead I used the control <asp:imagebutton> but I only realised that was available when you mentioned the image input type. Anyway, thanks!
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by:Thogek
ID: 12269163
<asp:imagebutton> will result in a <input type="image"> tag being sent to the browser, so the two are roughly equivalent.

Just make sure that you have an actual need to reference the ImageButton on the server (such as in using its Click event) -- if so, then that's your tool; but if not, then you're using server resources (to instantiate the ImageButton object) that you don't need, and you'd be better off using a straight <input type="image"> tag.
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