I create visualforce email template when i add the code for button
<apex:form>
<apex:commandButton action="{!send}" value="Send my email" id="theButton"/>
</apex:form>
its show me error "messaging:emailTemplate cannot contain apex:form."
so for this i create visaulforce component and add this component in to visualforce email template
<c:createlead/>
and add button here in component. The component save successfully but still visualfroce email template give same error.How to solve this ??