Changes made in the tree or ListGrid are automatically saved to the server and reflected in the other components. (Smart GWT) : Table Data Binding « GWT « Java






Changes made in the tree or ListGrid are automatically saved to the server and reflected in the other components. (Smart GWT)

Changes made in the tree or ListGrid are automatically saved to the server and reflected in the other components. (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.Criteria;
import com.smartgwt.client.data.DataSource;
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.SearchForm;
import com.smartgwt.client.widgets.form.fields.PickTreeItem;
import com.smartgwt.client.widgets.form.fields.events.ChangedEvent;
import com.smartgwt.client.widgets.form.fields.events.ChangedHandler;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.layout.VLayout;
import com.smartgwt.client.widgets.tree.TreeGrid;
import com.smartgwt.client.widgets.tree.TreeGridField;

public class Showcase implements EntryPoint {
  public void onModuleLoad() {
    RootPanel.get().add(getViewPanel());
  }

  public Canvas getViewPanel() {
    TreeGridField fieldName = new TreeGridField("Name", 150);
    TreeGridField fieldJob = new TreeGridField("Job", 150);
    TreeGridField fieldSalary = new TreeGridField("Salary");

    TreeGrid employeeTree = new TreeGrid();
    employeeTree.setWidth(500);
    employeeTree.setHeight(250);
    employeeTree.setDataSource(EmployeeXmlDS.getInstance());
    employeeTree.setNodeIcon("icons/16/person.png");
    employeeTree.setFolderIcon("icons/16/person.png");
    employeeTree.setAutoFetchData(true);
    employeeTree.setLoadDataOnDemand(false);
    employeeTree.setCanEdit(true);
    employeeTree.setCanReorderRecords(true);
    employeeTree.setCanAcceptDroppedRecords(true);
    employeeTree.setShowDropIcons(false);
    employeeTree.setShowOpenIcons(false);
    employeeTree.setClosedIconSuffix("");
    employeeTree.setFields(fieldName, fieldJob, fieldSalary);

    final ListGrid employeeGrid = new ListGrid();
    employeeGrid.setWidth(500);
    employeeGrid.setHeight(250);
    employeeGrid.setEmptyMessage("Select an Employee from the PickTree Item above.");
    employeeGrid.setDataSource(EmployeeXmlDS.getInstance());
    employeeGrid.setCanEdit(true);
    employeeGrid.setFields(new TreeGridField("Name", 150), new TreeGridField("Job", 150),
        new TreeGridField("Salary"));

    PickTreeItem searchPickTree = new PickTreeItem();
    searchPickTree.setCanSelectParentItems(true);
    searchPickTree.setShowTitle(false);
    searchPickTree.setDataSource(EmployeeXmlDS.getInstance());
    searchPickTree.setDisplayField("Name");
    searchPickTree.setValueField("EmployeeId");
    searchPickTree.addChangedHandler(new ChangedHandler() {
      public void onChanged(ChangedEvent event) {
        Criteria c = new Criteria();
        c.addCriteria("ReportsTo", (Integer) event.getValue());
        employeeGrid.fetchData(c);
      }
    });

    SearchForm searchForm = new SearchForm();
    searchForm.setWidth(200);
    searchForm.setHeight(30);
    searchForm.setFields(searchPickTree);

    VLayout mainView = new VLayout(10);
    mainView.setHeight100();
    mainView.setWidth100();

    mainView.addMember(searchForm);
    mainView.addMember(employeeGrid);
    mainView.addMember(employeeTree);

    return mainView;

  }

}

class EmployeeXmlDS extends DataSource {

  private static EmployeeXmlDS instance = null;

  public static EmployeeXmlDS getInstance() {
    if (instance == null) {
      instance = new EmployeeXmlDS("employeesDS");
    }
    return instance;
  }

  public EmployeeXmlDS(String id) {

    setID(id);
    setTitleField("Name");
    setRecordXPath("/List/employee");
    DataSourceTextField nameField = new DataSourceTextField("Name", "Name", 128);

    DataSourceIntegerField employeeIdField = new DataSourceIntegerField("EmployeeId", "Employee ID");
    employeeIdField.setPrimaryKey(true);
    employeeIdField.setRequired(true);

    DataSourceIntegerField reportsToField = new DataSourceIntegerField("ReportsTo", "Manager");
    reportsToField.setRequired(true);
    reportsToField.setForeignKey(id + ".EmployeeId");
    reportsToField.setRootValue("1");

    DataSourceTextField jobField = new DataSourceTextField("Job", "Title", 128);
    DataSourceTextField emailField = new DataSourceTextField("Email", "Email", 128);
    DataSourceTextField statusField = new DataSourceTextField("EmployeeStatus", "Status", 40);
    DataSourceFloatField salaryField = new DataSourceFloatField("Salary", "Salary");
    DataSourceTextField orgField = new DataSourceTextField("OrgUnit", "Org Unit", 128);
    DataSourceTextField genderField = new DataSourceTextField("Gender", "Gender", 7);
    genderField.setValueMap("male", "female");
    DataSourceTextField maritalStatusField = new DataSourceTextField("MaritalStatus",
        "Marital Status", 10);

    setFields(nameField, employeeIdField, reportsToField, jobField, emailField, statusField,
        salaryField, orgField, genderField, maritalStatusField);

    setDataURL("ds/test_data/employees.data.xml");
    setClientOnly(true);
  }
}

   
    
  








SmartGWT.zip( 9,880 k)

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