This is from a sample application I teach from. The basic premise is to allow the user to do something with a set of selected Locales. Why Locales, because when teaching the fewer dependencies the better.
This works by maintaining a set of locales. It uses the getter during the render cycle to set the checked property. It uses the setter during the rewind cycle to maintain the set based on user selection. .page file <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE page-specification PUBLIC "-//Apache Software Foundation//Tapestry Specification 3.0//EN" "http://jakarta.apache.org/tapestry/dtd/Tapestry_3_0.dtd";> <!-- generated by Spindle, http://spindle.sourceforge.net --> <page-specification class="com.mckesson.lab.sample.page.Page2"> <description>add a description</description> <property-specification name="loopLocale" type="java.lang.Object" /> <property-specification name="selectedLocales" type="java.util.Set" /> </page-specification> .html file <html jwcid="@Border" title="Page 2"> <form jwcid="@Form" listener="ognl:listeners.listenerSubmit"> <ul> <li jwcid="@Foreach" source="ognl:@[EMAIL PROTECTED]()" value="ognl:loopLocale" element="li"> <label> <input jwcid="@Checkbox" selected="ognl:isLocaleSelected" /> <span jwcid="@Insert" value="ognl:loopLocale.displayName" /> </label> </li> </ul> <input type="submit" /> </form> </html> package com.mckesson.lab.sample.page; import java.util.HashSet; import java.util.Set; import org.apache.tapestry.IRequestCycle; import org.apache.tapestry.event.PageEvent; import org.apache.tapestry.event.PageRenderListener; import org.apache.tapestry.html.BasePage; public abstract class Page2 extends BasePage implements PageRenderListener { public void listenerSubmit(IRequestCycle cycle) { Page1 p = (Page1) cycle.getPage("Page1"); p.setLocales(getSelectedLocales()); cycle.activate(p); } public boolean getIsLocaleSelected() { return getSelectedLocales().contains(getLoopLocale()); } public void setIsLocaleSelected(boolean value) { if (value) { getSelectedLocales().add(getLoopLocale()); } else if (getSelectedLocales().contains(getLoopLocale())) { getSelectedLocales().remove(getLoopLocale()); } } public void pageBeginRender(PageEvent event) { if (getSelectedLocales() == null) { setSelectedLocales(new HashSet()); } } public abstract Set getSelectedLocales(); public abstract void setSelectedLocales(Set value); public abstract Object getLoopLocale(); } -----Original Message----- From: Ashish Raniwala [mailto:[EMAIL PROTECTED] Sent: Wednesday, September 28, 2005 4:50 PM To: 'Tapestry users' Subject: Table with checkbox Hi, This must be a common question in forum, sorry for asking again. How to create multi select checkboxes in table ? I need to include a checkbox in each table row and save the selected records. Should I create a HashMap of ids and bind the checkbox with map Or what is the best way to do this ? Thanks, Ashish --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
