Grid Massive Update Sample(save after clicking a button) (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.i18n.client.NumberFormat;
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.DataSourceFloatField;
import com.smartgwt.client.data.fields.DataSourceIntegerField;
import com.smartgwt.client.data.fields.DataSourceLinkField;
import com.smartgwt.client.data.fields.DataSourceTextField;
import com.smartgwt.client.types.Alignment;
import com.smartgwt.client.types.ListGridEditEvent;
import com.smartgwt.client.types.ListGridFieldType;
import com.smartgwt.client.types.RowEndEditAction;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.IButton;
import com.smartgwt.client.widgets.events.ClickEvent;
import com.smartgwt.client.widgets.events.ClickHandler;
import com.smartgwt.client.widgets.grid.CellFormatter;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.grid.ListGridField;
import com.smartgwt.client.widgets.grid.ListGridRecord;
public class Showcase implements EntryPoint {
public void onModuleLoad() {
RootPanel.get().add(getViewPanel());
}
public Canvas getViewPanel() {
Canvas canvas = new Canvas();
final ListGrid countryGrid = new ListGrid();
countryGrid.setWidth(500);
countryGrid.setHeight(224);
countryGrid.setAlternateRecordStyles(true);
countryGrid.setCellHeight(22);
countryGrid.setDataSource(CountryXmlDS.getInstance());
ListGridField nameField = new ListGridField("countryName", "Country");
ListGridField continentField = new ListGridField("continent", "Continent");
ListGridField memberG8Field = new ListGridField("member_g8", "Member G8");
ListGridField populationField = new ListGridField("population", "Population");
populationField.setType(ListGridFieldType.INTEGER);
populationField.setCellFormatter(new CellFormatter() {
public String format(Object value, ListGridRecord record, int rowNum, int colNum) {
if(value == null) {
return null;
}
NumberFormat nf = NumberFormat.getFormat("0,000");
try {
return nf.format(((Number) value).longValue());
} catch (Exception e) {
return value.toString();
}
}
});
ListGridField independenceField = new ListGridField("independence", "Independence");
countryGrid.setFields(nameField,continentField, memberG8Field, populationField, independenceField);
countryGrid.setAutoFetchData(true);
countryGrid.setCanEdit(true);
countryGrid.setModalEditing(true);
countryGrid.setEditEvent(ListGridEditEvent.CLICK);
countryGrid.setListEndEditAction(RowEndEditAction.NEXT);
countryGrid.setAutoSaveEdits(false);
canvas.addChild(countryGrid);
IButton editButton = new IButton("Edit New");
editButton.setTop(250);
editButton.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
countryGrid.startEditingNew();
}
});
canvas.addChild(editButton);
IButton saveButton = new IButton("Save");
saveButton.setTop(250);
saveButton.setLeft(110);
saveButton.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
countryGrid.saveAllEdits();
}
});
canvas.addChild(saveButton);
IButton discardButton = new IButton("Discard");
discardButton.setTop(250);
discardButton.setLeft(220);
discardButton.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
countryGrid.discardAllEdits();
}
});
canvas.addChild(discardButton);
return canvas;
}
}
class CountryXmlDS extends DataSource {
private static CountryXmlDS instance = null;
public static CountryXmlDS getInstance() {
if (instance == null) {
instance = new CountryXmlDS("countryDS");
}
return instance;
}
public CountryXmlDS(String id) {
setID(id);
setRecordXPath("/List/country");
DataSourceIntegerField pkField = new DataSourceIntegerField("pk");
pkField.setHidden(true);
pkField.setPrimaryKey(true);
DataSourceTextField countryCodeField = new DataSourceTextField("countryCode", "Code");
countryCodeField.setRequired(true);
DataSourceTextField countryNameField = new DataSourceTextField("countryName", "Country");
countryNameField.setRequired(true);
DataSourceTextField capitalField = new DataSourceTextField("capital", "Capital");
DataSourceTextField governmentField = new DataSourceTextField("government", "Government", 500);
DataSourceBooleanField memberG8Field = new DataSourceBooleanField("member_g8", "G8");
DataSourceTextField continentField = new DataSourceTextField("continent", "Continent");
continentField.setValueMap("Europe", "Asia", "North America", "Australia/Oceania", "South America", "Africa");
DataSourceDateField independenceField = new DataSourceDateField("independence", "Nationhood");
DataSourceFloatField areaField = new DataSourceFloatField("area", "Area (km²)");
DataSourceIntegerField populationField = new DataSourceIntegerField("population", "Population");
DataSourceFloatField gdpField = new DataSourceFloatField("gdp", "GDP ($M)");
DataSourceLinkField articleField = new DataSourceLinkField("article", "Info");
setFields(pkField, countryCodeField, countryNameField, capitalField, governmentField,
memberG8Field, continentField, independenceField, areaField, populationField,
gdpField, articleField);
setDataURL("ds/test_data/country.data.xml");
setClientOnly(true);
}
}
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