c# - ASP.NET button works with alerts but not triggering page_load or code behind method -


i have asp.net button in update panel,

if put alert('hello'), works otherwise if put code behind method, doesn't work, ideas ?

<asp:button id="button1" onclick="alert('why');" text="submit" runat="server" cssclass="leftbutton" />       // works !!!         <asp:button id="button1" onclick="codebehind_click" text="submit" runat="server" cssclass="leftbutton" /> // doesn't work

i tried adding triggers panel , no change.

update

onclient or onclientclick, no of them works :(

useless update

protected void codebehind_click(object sender, eventargs e)         {  // not triggering page_load neither method }

you need onclick instead of onclientclick binding server side event. can read more on here server side click event.

in code behind should have handler.

void codebehind_click(object sender, eventargs e) {  }

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