Source Code : Dropdown ListGrid Sample (Smart GWT)

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Dropdown ListGrid 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 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.SelectItem;
import com.smartgwt.client.widgets.form.validator.FloatPrecisionValidator;
import com.smartgwt.client.widgets.form.validator.FloatRangeValidator;
import com.smartgwt.client.widgets.grid.ListGridField;

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(300);

      ListGridField itemField = new ListGridField("itemName");
      ListGridField unitsField = new ListGridField("units");
      ListGridField unitCostField = new ListGridField("unitCost");

      SelectItem item = new SelectItem("itemID");
      item.setWidth(240);
      item.setTitle("Item");
      item.setOptionDataSource(supplyItemDS);
      item.setValueField("SKU");
      item.setDisplayField("itemName");
      item.setPickListWidth(450);
      item.setPickListFields(itemField, unitsField, unitCostField);

      form.setItems(item);

      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);        
  }
}

   
    
    
  

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