i have get nothing message in my web server.i cant getting decimalbox value when i clicking button.the zk action (onClick$kalkulasi) didnt return anythingthis is my zk file\[code\]<?init class="org.zkoss.zkplus.databind.AnnotateDataBinderInit"?><zk> <style> .silvergray .complex-layout, .silvergray .complex-layout .z-south, .silvergray .complex-layout .z-west { background: #C5E6EF; } .breeze .complex-layout, .breeze .complex-layout .z-south, .breeze .complex-layout .z-west { background: #F7F7F7; } </style> <style> .z-borderlayout { background: #FFFFFF } .complex-layout .z-north { background: #008BB6; } img.complex-layout-header-img { padding: 0 10px; } .complex-layout-header-label { position: relative; top: -30px; padding-left: 40px; font-size: 24px; color: White; font-weight: bold; } .inner-border, .inner-border .z-north, .inner-border .z-west, .inner-border .z-south, .inner-border .z-east { background: #FFFFFF; } .dl-link { text-decoration: none; cursor: pointer; } </style> <window id="win" title="Rasio Lancar" width="auto" height="auto" border="" apply="rasiolancar.lancarController"> <borderlayout sclass="complex-layout" height="700px"> <north size="90px" border="0"> <div> <image sclass="complex-layout-header-img" src="http://stackoverflow.com/images/Adempiere.png" /> <label sclass="complex-layout-header-label" value="http://stackoverflow.com/questions/8978610/SCM for Small and Medium Business" /> </div> </north> <!-- Sidebar --> <west width="200px" border="0" flex="true" splittable="true" margins="0,5,0,0"> <vlayout spacing="0"> <panel width="100%" border="normal" title="Menu"> <panelchildren style="padding:5px;"> <vbox> <toolbarbutton label="Jurnal Keuangan" href="http://stackoverflow.com/questions/8978610/lap_keuangan.zul" image="images/book.png"/> <toolbarbutton label="Buku Besar " href="http://stackoverflow.com/questions/8978610/neraca.zul" image="images/3.png"/> <toolbarbutton label="Rasio Lancar" href="http://stackoverflow.com/questions/8978610/rasiolancar.zul" image="images/Modify.png" /> <toolbarbutton label="Rasio Kas" href="http://stackoverflow.com/questions/8978610/rasiokas.zul" image="images/2.png"/> <toolbarbutton label="Rasio Cepat" href="http://stackoverflow.com/questions/8978610/rasiocepat.zul" image="images/Pie.png"/> <toolbarbutton label="Rasio Modal Kerja dan Aktiva" href="http://stackoverflow.com/questions/8978610/rasioaktiva.zul" image="images/Bar.png"/> </vbox> </panelchildren> </panel> </vlayout> </west> <!-- Content --> <center> <borderlayout sclass="inner-border"> <north border="0" height="4%" margins="2,3,0,0"> <label value="http://stackoverflow.com/questions/8978610/Rasio Lancar" style="font-size:20px;" tooltip="jelas" /> </north> <center border="2" margins="0,5,5,5"> <window> <grid> <rows> <row> <div> <label>Bulan</label> <combobox id="bulan" > <comboitem label="Januari"/> <comboitem label="Februari"/> <comboitem label="Maret"/> <comboitem label="April"/> <comboitem label="Mei"/> <comboitem label="Juni"/> <comboitem label="Juli"/> <comboitem label="Agustus"/> <comboitem label="September"/> <comboitem label="Oktober"/> <comboitem label="November"/> <comboitem label="Desember"/> </combobox> <label>Tahun</label> <combobox id="tahun" > <comboitem label="2002"/> <comboitem label="2003"/> <comboitem label="2004"/> <comboitem label="2005"/> <comboitem label="2006"/> </combobox> <button id="kalkulasi1" label="kalkulasi1"/> </div> </row> <row> <div> <label>Hasil</label> <textbox id="hasil1" width="158px" /> </div> </row> <row> <hlayout> <label value="http://stackoverflow.com/questions/8978610/Perhitungan Manual" style="color:Black;font-size:20px"/> </hlayout> </row> <row> <div> <label value="http://stackoverflow.com/questions/8978610/Aktiva Lancar||"/> <label value="http://stackoverflow.com/questions/8978610/Nilai Utang Lancar ||"/> </div> </row> <row> <div> <decimalbox id="al" width="150px" /> <decimalbox id="ul" width="150px" /> </div> </row> <row> <div> <textbox id="hasil2" width="150px" /> </div> </row> <row> <div> <button id="kalkulasi" label="hitung"/> <button id="bersihkan" label="Bersihkan"/> </div> </row> </rows> </grid> </window> </center> </borderlayout> </center> <east title="Apa itu Rasio Cepat" size="30%" flex="true" collapsible="true"> <div style="background:#cccccc"> <label value="http://stackoverflow.com/questions/8978610/Rasio ini berguna untuk mengetahui kemampuan suatu UKM dalam melunasi utang jangka pendeknya" style="color:white;font-size:20px" /> <image src=""/> </div> </east> <south size="40px" border="0" style="background: none repeat scroll 0 0 ;"> <toolbar mold="panel" align="center"> Powered by ZK </toolbar> </south> </borderlayout> </window> <popup id="jelas" width="300px"> <html><![CDATA[ Rasio ini berguna untuk mengetahui kemampuan suatu UKM dalam melunasi utang jangka pendeknya ]]> </html> </popup></zk>\[/code\]and the controller file:\[code\] package rasiolancar; import controller.koneksi; import java.math.BigDecimal; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import org.zkoss.zk.ui.event.Event; import org.zkoss.zk.ui.util.GenericForwardComposer; import org.zkoss.zul.Button; import org.zkoss.zul.Combobox; import org.zkoss.zul.Decimalbox; import org.zkoss.zul.Textbox; /** * * @author aulia */ public class lancarController extends GenericForwardComposer { private Combobox bulan = null; private Combobox tahun = null; private Textbox hasil1; private Decimalbox al; private Decimalbox ul; private Textbox hasil2 = null; private koneksi k; private Connection conn; public lancarController() throws Exception { } public void onClick$kalkulasi1(Event e) throws Exception, SQLException { System.out.println("testststs"); String bln = null; String thn = null; int b = bulan.getSelectedIndex(); if (b == 0) { bln = "01"; } else if (b == 1) { bln = "02"; } else if (b == 1) { bln = "03"; } else if (b == 1) { bln = "04"; } else if (b == 1) { bln = "05"; } else if (b == 1) { bln = "06"; } else if (b == 1) { bln = "07"; } else if (b == 1) { bln = "08"; } else if (b == 1) { bln = "09"; } else if (b == 1) { bln = "11"; } else if (b == 1) { bln = "12"; } int t = tahun.getSelectedIndex(); if (t == 0) { thn = "2002"; } else if (t == 1) { thn = "2003"; }//query ommited PreparedStatement ps = null; String sql = "select..from... where bulan='" + bln + "' and tahun='" + thn + "'"; ps = conn.prepareStatement(sql); ResultSet rs = ps.executeQuery(); Integer hs = new Integer(rs.getString("")); String h = hs.toString(); hasil1.setText(h); } public void onClick$kalkulasi() throws InterruptedException { System.out.println("test klik1"); try { BigDecimal aktiva = al.getValue(); BigDecimal utang = ul.getValue(); //ngeprint System.out.println(aktiva); System.out.println(utang); int a = aktiva.intValueExact(); int u = utang.intValueExact(); int hs = (a / u) * 100; System.out.println("hasil integer" + hs); Integer h = new Integer(hs); String hsl = h.toString(); System.out.println("hasil sebelum textbox" + hsl); hasil2.setText(hsl); System.out.println("hasil sesudah textbox" + hsl); } catch (Exception a) { a.printStackTrace(); } } public void onClick$bersihkan(Event e){ al.setText(null); ul.setText(null); hasil2.setText(null); } }\[/code\]please help me guys, i guess the ZK file cannot read onClick action. but im not sure.thanks for helping me 