ASP.net paypal form within server form

If I put my Paypal button on my ASP.net websit开发者_运维知识库e, it doesn't work because the whole page is wrapped in a <form runat="server"></form> tag.

What's the best way to integrate:

<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
    ....
</form>

Onto my ASP.net page?

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You need to use the PayPal NVP API. Gives you much more flexibility than the pre-made buttons as well.