Form Dependent Selects Sample (Smart GWT)
/*
* SmartGWT (GWT for SmartClient)
* Copyright 2008 and beyond, Isomorphic Software, Inc.
*
* SmartGWT is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version 3
* as published by the Free Software Foundation. SmartGWT is also
* available under typical commercial license terms - see
* http://smartclient.com/license
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package com.smartgwt.sample.showcase.client;
import java.util.HashMap;
import java.util.Map;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.user.client.ui.RootPanel;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.form.DynamicForm;
import com.smartgwt.client.widgets.form.fields.SelectItem;
import com.smartgwt.client.widgets.form.fields.events.ChangeEvent;
import com.smartgwt.client.widgets.form.fields.events.ChangeHandler;
public class Showcase implements EntryPoint {
public void onModuleLoad() {
RootPanel.get().add(getViewPanel());
}
public Canvas getViewPanel() {
final DynamicForm form = new DynamicForm();
form.setWidth(500);
form.setNumCols(4);
final Map<String, String[]> departments = new HashMap<String, String[]>();
departments.put("Marketing", new String[] { "Advertising", "Community Relations" });
departments.put("Sales", new String[] { "Channel Sales", "Direct Sales" });
departments.put("Manufacturing", new String[] { "Design", "Development", "QA" });
departments.put("Services", new String[] { "Support", "Consulting" });
SelectItem divisionItem = new SelectItem();
divisionItem.setName("division");
divisionItem.setTitle("Division");
divisionItem.setValueMap("Marketing", "Sales", "Manufacturing", "Services");
divisionItem.addChangeHandler(new ChangeHandler() {
public void onChange(ChangeEvent event) {
String selectedItem = (String) event.getValue();
form.getField("department").setValueMap(departments.get(selectedItem));
}
});
SelectItem departmentItem = new SelectItem();
departmentItem.setName("department");
departmentItem.setTitle("Department");
departmentItem.setAddUnknownValues(false);
form.setItems(divisionItem, departmentItem);
return form;
}
}
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