Asp button with different button type
You can just set UseSubmitBehavior="false"
and it will render type="button"
instead of type="submit"
(.net 4 at least)
Using the attribute UseSubmitBehaviour="false" solved my problem
<asp:Button ID="button1" runat="server" UseSubmitBehavior="false" Text="just a button" />
This attribute is available since .Net v2.0, for more information: Button.UseSubmitBehavior Property