Validation errors expressed in application-specific XML can be communicated to visual components by implementing DataSource.setResponseTransformHandler() (Smart GWT) : Form Validation « GWT « Java

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Java » GWT » Form ValidationScreenshots 
Validation errors expressed in application-specific XML can be communicated to visual components by implementing DataSource.setResponseTransformHandler() (Smart GWT)
Validation errors expressed in application-specific XML can be communicated to visual components by implementing DataSource.setResponseTransformHandler() (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.core.client.JavaScriptObject;
import com.google.gwt.user.client.ui.RootPanel;
import com.smartgwt.client.data.DSRequest;
import com.smartgwt.client.data.DSResponse;
import com.smartgwt.client.data.DataSource;
import com.smartgwt.client.data.XMLTools;
import com.smartgwt.client.data.fields.DataSourcePasswordField;
import com.smartgwt.client.data.fields.DataSourceTextField;
import com.smartgwt.client.rpc.RPCResponse;
import com.smartgwt.client.types.DSDataFormat;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.IButton;
import com.smartgwt.client.widgets.events.ClickHandler;
import com.smartgwt.client.widgets.form.DynamicForm;
import com.smartgwt.client.widgets.form.fields.HeaderItem;
import com.smartgwt.client.widgets.form.fields.PasswordItem;
import com.smartgwt.client.widgets.layout.VLayout;

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

  public Canvas getViewPanel() {

    DataSource dataSource = new DataSource() {
      protected void transformResponse(DSResponse response, DSRequest request, Object xmlData) {
        String status = XMLTools.selectString(xmlData, "/response/status");
        if (!status.equals("success")) {
          response.setStatus(RPCResponse.STATUS_VALIDATION_ERROR);
          Object errors = XMLTools.selectNodes(xmlData, "/response/errors");
          JavaScriptObject errorsJS = XMLTools.toJS(errors);
          response.setErrors(errorsJS);
        }
      }
    };
    dataSource.setDataFormat(DSDataFormat.XML);
    dataSource.setDataURL("data/dataIntegration/xml/serverValidationErrors/serverResponse.xml");
    DataSourceTextField userNameField = new DataSourceTextField("userName""Username"50true);
    DataSourceTextField firstNameField = new DataSourceTextField("firstName""First Name"50,
        true);
    DataSourceTextField lastNameField = new DataSourceTextField("lastName""Last Name"50true);
    DataSourceTextField emailField = new DataSourceTextField("email""Email"100true);

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

    dataSource.setFields(userNameField, 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");

    IButton saveButton = new IButton("Save");
    saveButton.addClickHandler(new ClickHandler() {
      public void onClick(com.smartgwt.client.widgets.events.ClickEvent event) {
        if (form.validate()) {
          form.saveData();
        }
      }
    });

    form.setFields(header, passwordItem);

    form.setValue("userName""bsmith");
    form.setValue("firstName""Bob");
    form.setValue("lastName""Smith");
    form.setValue("email""bob@.com");
    form.setValue("password""sekrit");

    VLayout layout = new VLayout(10);
    layout.addMember(form);
    layout.addMember(saveButton);
    return layout;

  }

}

   
    
  
SmartGWT.zip( 9,880 k)
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