asp.net - Keeping an ASP button from doing a Postback -


i've run strange problem asp.net project. upon clicking button, execute javascript function adds image img control. however, clicking button refreshes page, causing image disappear.

i've tried setting usesubmitbehavior false, recall fixing similar problem i've had before. strangely enough, doesn't seem work.

when inspect page, can see button's type has changed "submit" "button" onclick event has gained method "_dopostback", leaving me exact same problem.

how can make sure _dopostback doesn't added onclick event? or there way prevent button doing postback?

thanks in advance!

<asp:button id="button1" runat="server" onclientclick="myjavascriptfunction(); return false;" />

the return false statement prevents postbacks.

you can use anchor tag href set #.


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