Source Code : Form data validation (Smart GWT)

Java Is Open Source Programming Language You Can Download From Java and Java Libraries From http://www.oracle.com. Click Here to download
We provide this code related to title for you to solve your developing problem easily. Libraries which is import in this program you can download from http://www.oracle.com. Click Here or search from google with Libraries Name you get jar file related it

Form data validation (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.DataSourcePasswordField;
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.ButtonItem;
import com.smartgwt.client.widgets.form.fields.CheckboxItem;
import com.smartgwt.client.widgets.form.fields.HeaderItem;
import com.smartgwt.client.widgets.form.fields.PasswordItem;
import com.smartgwt.client.widgets.form.fields.events.ClickEvent;
import com.smartgwt.client.widgets.form.fields.events.ClickHandler;
import com.smartgwt.client.widgets.form.validator.MatchesFieldValidator;
import com.smartgwt.client.widgets.form.validator.RegExpValidator;
public class Showcase implements EntryPoint {
  public void onModuleLoad() {
    RootPanel.get().add(getViewPanel());
  }

  public Canvas getViewPanel() {

    DataSource dataSource = new DataSource();

    DataSourceTextField firstNameField = new DataSourceTextField("firstName", "First Name", 50, true);
    DataSourceTextField lastNameField = new DataSourceTextField("lastName", "Last Name", 50, true);
    DataSourceTextField emailField = new DataSourceTextField("email", "Email", 100, true);

    RegExpValidator emailValidator = new RegExpValidator();
    emailValidator.setErrorMessage("Invalid email address");
    emailValidator.setExpression("^([a-zA-Z0-9_.\-+])+@(([a-zA-Z0-9\-])+\.)+[a-zA-Z0-9]{2,4}$");
    
    emailField.setValidators(emailValidator);

    DataSourcePasswordField passwordField = new DataSourcePasswordField("password", "Password", 20, true);

    dataSource.setFields(firstNameField, lastNameField, emailField, passwordField);

    final DynamicForm form = new DynamicForm();
    form.setDataSource(dataSource);
    form.setUseAllDataSourceFields(true);

    HeaderItem header = new HeaderItem();
    header.setDefaultValue("Registration Form");

    PasswordItem passwordItem = new PasswordItem();
    passwordItem.setName("password");

    PasswordItem passwordItem2 = new PasswordItem();
    passwordItem2.setName("password2");
    passwordItem2.setTitle("Password Again");
    passwordItem2.setRequired(true);
    passwordItem2.setLength(20);

    MatchesFieldValidator matchesValidator = new MatchesFieldValidator();
    matchesValidator.setOtherField("password");
    matchesValidator.setErrorMessage("Passwords do not match");        
    passwordItem2.setValidators(matchesValidator);

    CheckboxItem acceptItem = new CheckboxItem();
    acceptItem.setName("acceptTerms");
    acceptItem.setTitle("I accept the terms of use.");
    acceptItem.setRequired(true);
    acceptItem.setWidth(150);

    ButtonItem validateItem = new ButtonItem();
    validateItem.setTitle("Validate");
    validateItem.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
            form.validate(false);
        }
    });

    form.setFields(header, passwordItem, passwordItem2, acceptItem, validateItem);
    
    form.setValue("firstName", "Bob");
    form.setValue("email", "bob@.com");
    form.setValue("password", "sekrit");
    form.setValue("password2", "fatfinger");    
      
    return form;
  }

}

   
    
    
  

Thank with us