javascript - PostBackUrl="javascript:void(0); restrict postback of all controls on the page

Question

I want to avoid postback for following control It works fine . But when i click on that control ,all postback of other controls on the page also does not occur.Before click on following all works fine.

  <div class="close_but">
          <asp:ImageButton ID="imgbtnEChartZoomClose" runat="server" ImageUrl="images/close.png" OnClientClick="javascript:zoomclosepopup();" PostBackUrl="javascript:void(0);" />
       </div>

I dont know what to do now .Please help me

Answer 1

试试这个，删除PostBackUrl="javascript:void(0);"，并将 return false 添加到 OnClientClick ：

<asp:ImageButton  OnClientClick="javascript:zoomclosepopup();return false;" ID="imgbtnEChartZoomClose" runat="server" ImageUrl="images/close.png" />