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Local And Databound ComboBox 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.LinkedHashMap; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.user.client.ui.RootPanel; import com.smartgwt.client.data.DataSource; import com.smartgwt.client.data.fields.DataSourceBooleanField; import com.smartgwt.client.data.fields.DataSourceDateField; import com.smartgwt.client.data.fields.DataSourceEnumField; import com.smartgwt.client.data.fields.DataSourceFloatField; import com.smartgwt.client.data.fields.DataSourceIntegerField; import com.smartgwt.client.data.fields.DataSourceTextField; import com.smartgwt.client.widgets.Canvas; import com.smartgwt.client.widgets.form.DynamicForm; import com.smartgwt.client.widgets.form.fields.ComboBoxItem; import com.smartgwt.client.widgets.form.validator.FloatPrecisionValidator; import com.smartgwt.client.widgets.form.validator.FloatRangeValidator; public class Showcase implements EntryPoint{     public void onModuleLoad() {        RootPanel.get().add(getViewPanel());     }     public Canvas getViewPanel() {       DataSource supplyItemDS = ItemSupplyXmlDS.getInstance();       final DynamicForm form = new DynamicForm();       form.setWidth(500);       form.setNumCols(4);       ComboBoxItem bugStatusItem = new ComboBoxItem("bugStatus");       bugStatusItem.setTitle("Bug Status");       LinkedHashMap<String, String> valueMap = new LinkedHashMap<String, String>();       valueMap.put("new", "New");       valueMap.put("active", "Active");       valueMap.put("revisit", "Revisit");       valueMap.put("fixed", "Fixed");       valueMap.put("delivered", "Delivered");       valueMap.put("resolved", "Resolved");       valueMap.put("reopened", "Reopened");       bugStatusItem.setValueMap(valueMap);       ComboBoxItem itemName = new ComboBoxItem("itemName");       itemName.setTitle("Item Name");       itemName.setPickListWidth(250);       itemName.setOptionDataSource(supplyItemDS);       form.setItems(bugStatusItem, itemName);       return form;       } } class ItemSupplyXmlDS extends DataSource {   private static ItemSupplyXmlDS instance = null;   public static ItemSupplyXmlDS getInstance() {       if (instance == null) {           instance = new ItemSupplyXmlDS("supplyItemDS");       }       return instance;   }   public ItemSupplyXmlDS(String id) {       setID(id);       setRecordXPath("/List/supplyItem");       DataSourceIntegerField pkField = new DataSourceIntegerField("itemID");       pkField.setHidden(true);       pkField.setPrimaryKey(true);       DataSourceTextField itemNameField = new DataSourceTextField("itemName", "Item Name", 128, true);       DataSourceTextField skuField = new DataSourceTextField("SKU", "SKU", 10, true);       DataSourceTextField descriptionField = new DataSourceTextField("description", "Description", 2000);       DataSourceTextField categoryField = new DataSourceTextField("category", "Category", 128, true);       categoryField.setForeignKey("supplyCategoryDS.categoryName");       DataSourceEnumField unitsField = new DataSourceEnumField("units", "Units", 5);       unitsField.setValueMap("Roll", "Ea", "Pkt", "Set", "Tube", "Pad", "Ream", "Tin", "Bag", "Ctn", "Box");       DataSourceFloatField unitCostField = new DataSourceFloatField("unitCost", "Unit Cost", 5);       FloatRangeValidator rangeValidator = new FloatRangeValidator();       rangeValidator.setMin(0);       rangeValidator.setErrorMessage("Please enter a valid (positive) cost");       FloatPrecisionValidator precisionValidator = new FloatPrecisionValidator();       precisionValidator.setPrecision(2);       precisionValidator.setErrorMessage("The maximum allowed precision is 2");       unitCostField.setValidators(rangeValidator, precisionValidator);       DataSourceBooleanField inStockField = new DataSourceBooleanField("inStock", "In Stock");       DataSourceDateField nextShipmentField = new DataSourceDateField("nextShipment", "Next Shipment");       setFields(pkField, itemNameField, skuField, descriptionField, categoryField, unitsField,                 unitCostField, inStockField, nextShipmentField);       setDataURL("ds/test_data/supplyItem.data.xml");       setClientOnly(true);           } }                  SmartGWT.zip( 9,880 k)