ExtJs博客前奏
由于这段时间事情比较杂乱，博客就主要以项目中例子来说明编写。
ExtJs4中的Grid非常强大，有展示，选中，搜索，排序，编辑，拖拽等基本功能，这篇博客我就这几个功能做写累述。
Grid的展示选中排序选中事件。
附图：
代码：
<script type="text/javascript"> Ext.onReady(function () { var store = Ext.create(‘Ext.data.Store‘, { fields: ["cataId", "cataNo", "cataRemark", "cataTitle", "cataObjectName", "cataeditstatusName", "cataPublishName", "cataEndDate", "holyUpdateTime", "catapushtime"], pageSize: 20, //页容量5条数据 //是否在服务端排序 （true的话，在客户端就不能排序） remoteSort: false, remoteFilter: true, proxy: { type: ‘ajax‘, url: ‘/Tools/106.ashx?method=getAllCatalog‘, reader: { //这里的reader为数据存储组织的地方，下面的配置是为json格式的数据，例如：[{"total":50,"rows":[{"a":"3","b":"4"}]}] type: ‘json‘, //返回数据类型为json格式 root: ‘rows‘, //数据 totalProperty: ‘total‘ //数据总条数 } }, sorters: [{ //排序字段。 property: ‘ordeId‘, //排序类型，默认为 ASC direction: ‘desc‘ }], autoLoad: true //即时加载数据 }); var grid = Ext.create(‘Ext.grid.Panel‘, { renderTo: Ext.getBody(), store: store, height: 400, width:800, selModel: { selType: ‘checkboxmodel‘ }, //选择框 columns: [ { text: ‘型录ID‘, dataIndex: ‘cataId‘, align: ‘left‘, maxWidth: 80 }, { text: ‘型录编号‘, dataIndex: ‘cataNo‘, maxWidth: 120 }, { text: ‘助记标题‘, dataIndex: ‘cataTitle‘, align: ‘left‘, minWidth: 80 }, { text: ‘应用对象‘, dataIndex: ‘cataObjectName‘, maxWidth: 80, align: ‘left‘ }, { text: ‘发布状态‘, dataIndex: ‘cataPublishName‘, maxWidth: 80 }, { text: ‘活动截止日期‘, dataIndex: ‘cataEndDate‘,xtype:‘datecolumn‘,dateFormat :‘Y-m-d H:i:s‘ }, { text: ‘更新时间‘, dataIndex: ‘holyUpdateTime‘,xtype:‘datecolumn‘,dateFormat :‘Y-m-d H:i:s‘}, { text: ‘发布时间‘, dataIndex: ‘catapushtime‘,xtype:‘datecolumn‘,dateFormat :‘Y-m-d H:i:s‘} ], bbar: [{ xtype: ‘pagingtoolbar‘, store: store, displayMsg: ‘显示 {0} - {1} 条，共计 {2} 条‘, emptyMsg: "没有数据", beforePageText: "当前页", afterPageText: "共{0}页", displayInfo: true }], listeners: { ‘itemclick‘: function (view, record, item, index, e) { Ext.MessageBox.alert("标题",record.data.cataId); } }, tbar:[ {text:‘新增‘,iconCls:‘a_add‘,handler:showAlert},"-", {text:‘编辑‘,iconCls:‘a_edit2‘,handler:showAlert},"-", {text:‘停用/启用‘,iconCls:‘a_lock‘},"-", {text:‘发布‘,iconCls:‘a_upload‘,handler:showAlert},"-", {text:‘组织型录‘,iconCls:‘a_edit‘,handler:showAlert},"-", {text:‘管理商品‘,iconCls:‘a_edit‘,handler:showAlert},"-", "->",{ iconCls:"a_search",text:"搜索",handler:showAlert}], });
function showAlert (){
var selectedData=grid.getSelectionModel().getSelection()[0].data;
Ext.MessageBox.alert("标题",selectedData.cataId);
}
});
</script>
注释：
一、gridPanel几个必须配置的项：store（数据格式组织、存储），columns(展示到页面的格式，数据组织)。
1、store里面有个fields配置，为需要的数据字段，跟读取到的数据（本地，或远程获取的）字段对应。
2、columns中的text为grid展示的列标题，dataIndex绑定字段与store中fields配置字段的对应。
二、数据获取
proxy: { type: ‘ajax‘, url: ‘/Tools/106.ashx?method=getAllCatalog‘, reader: { //这里的reader为数据存储组织的地方，下面的配置是为json格式的数据，例如：[{"total":50,"rows":[{"a":"3","b":"4"}]}] type: ‘json‘, //返回数据类型为json格式 root: ‘rows‘, //数据 totalProperty: ‘total‘ //数据总条数 } }, sorters: [{ //排序字段。 property: ‘ordeId‘, //排序类型，默认为 ASC direction: ‘desc‘ }],
1、传递的参数为：method=getAllCatalog&page=1&start=0&limit=20&sort=[{"property":"ordeId","direction":"desc"}]
2、传回数据为：{"rows":[{"rowNum":"1","cataId":"852","cataNo":"10000809","cataTitle":"","cataObject":"4","cataObjectName":"华悦购物","cataType":"1","cataTypeName":"默认","cataeditstatus":"2","cataeditstatusName":"待提交","cataPublishStatus":"2","cataPublishName":"已发布","cataRemark":"banner广告","cataObjectType":"2","apptypename":"销售","cataEndDate":"2014-09-27","holyCreateTime":"2013-11-24 16:02:04","holyUpdateTime":"","catapushtime":"","holyCreateUser":"lhcs"}]}
三、分页（不带搜索条件）：
bbar: [{ xtype: ‘pagingtoolbar‘, store: store, displayMsg: ‘显示 {0} - {1} 条，共计 {2} 条‘, emptyMsg: "没有数据", beforePageText: "当前页", afterPageText: "共{0}页", displayInfo: true }]
1、store为grid的store
2、store中的remoteSort配置为true。
3、传递参数为：你点的列标题绑定字段+desc/asc,组织格式为：method=getAllCatalog&page=1&start=0&limit=20&sort:[{"property":"cataNo","direction":"DESC"}]
四、选中行
1、选中行点击事件
listeners: { ‘itemclick‘: function (view, record, item, index, e) {
Ext.MessageBox.alert("标题",record.data.cataId);
}
2、外部操作选中行
function showAlert (){ var selectedData=grid.getSelectionModel().getSelection()[0].data; Ext.MessageBox.alert("标题",selectedData.cataId); }
3、外部操作多行选中
var rows = grid.getView().getSelectionModel().getSelection(); var msg = ""; for (var i = 0; i < rows.length; i++) { msg = msg + rows[i].get(‘cataId‘) + ‘,‘; }
五、列数据格式
1、时间
{ text: ‘发布时间‘, dataIndex: ‘catapushtime‘,xtype:‘datecolumn‘,dateFormat :‘Y-m-d H:i:s‘}
2、金钱
{ text: ‘订单金额‘, dataIndex: ‘oprice‘,align:‘right‘, xtype:‘numbercolumn‘,format:‘0,000.00‘},
3、多字段组合
{ text: ‘毛利率‘, dataIndex: ‘sPrice‘, minWidth: 20,
renderer: function(v, m, r){
var puprsaleprice = r.get("sPrice") * r.get("puprsalepricetax")/(1+r.get("puprsalepricetax"));
var puprtaxprice = r.get("cPrice") * r.get("puprtax")/(1+r.get("puprtax"));
//var maoprice = (r.get("sprice") - r.get("cprice") - (puprsaleprice-puprtaxprice)- r.get("puprinvoiceprice") - r.get("pfreight") - r.get("sprice") * r.get("fpoint"))/r.get("sprice");
var maoprice = (r.get("sPrice") - r.get("cPrice") - (puprsaleprice-puprtaxprice)- r.get("puprinvoiceprice") - r.get("pfreight") - r.get("sPrice") * r.get("fpoint"))/(r.get("sPrice") / (1+r.get("puprsalepricetax")));
return (maoprice * 100).toFixed(2) + ‘%‘;
}},
六、Grid数据刷新
1、不传参刷新当前数据
store.load();
2、传参刷新数据
store.load({ params: { Id: 123} });
Grid编辑
附图：
代码：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<link href="/ExtUI/ExtJs4.2.1/resources/css/ext-all.css" rel="stylesheet" type="text/css" />
<link href="/ExtUI/mecss/UIicon.css" rel="stylesheet" type="text/css" />
<script src="/ExtUI/ExtJs4.2.1/ext-all.js" type="text/javascript"></script>
<script type="text/javascript">
Ext.onReady(function () {
var RowEditing = Ext.create(‘Ext.grid.plugin.RowEditing‘, { // 行编辑模式
clicksToMoveEditor : 2, //双击编辑 整行修改
autoCancel : false,
saveBtnText:‘确定‘,
cancelBtnText:‘取消‘,
errorsText:‘错误‘,
dirtyText:‘你要确认或取消更改‘
});
var catalogEditProductStore = Ext.create(‘Ext.data.Store‘, {
fields: ["prcaId","prodId","prcaImg","prodNo","prcaOrderBy", "prodNameZh", "prcaTitle", "prcaPrice", "prcaSalesPrice", "prcaDeductPoint", "prcaSalePoint",
"prcaStorage","prcaIndateStart","prcaIndateEnd","prcaFreight","prcaRedirectUrl","prcaProdTotal","prcaIntegral"],
pageSize: 10, //页容量5条数据
//是否在服务端排序 （true的话，在客户端就不能排序）
remoteSort: false,
remoteFilter: true,
proxy: {
type: ‘ajax‘,
url: ‘/Tools/106EditProduct.ashx?method=getCatalogProductByID&id=1797&cataId=888‘,
reader: {
type: ‘json‘, //返回数据类型为json格式
root: ‘rows‘, //数据（json格式）
totalProperty: ‘total‘ //数据总条数
}
},
sorters: [{
//排序字段。
property: ‘prodNo‘,
//排序类型，默认为 ASC
direction: ‘desc‘
}],
autoLoad: true //即时加载数据
});
//该型录下的选中编辑的商品
var catalogEditProduct = Ext.create("Ext.grid.Panel", {
store: catalogEditProductStore,
multiSelect: true, //支持多选
height:400,
width:800,
selModel: { selType: ‘checkboxmodel‘ },
columns: [
{ text: ‘型录商品ID‘, dataIndex: ‘prcaId‘, align: ‘left‘, width: 50 },
{ text: ‘商品ID‘, dataIndex: ‘prodId‘, align: ‘left‘, width: 50 },
{ text: ‘商品编号‘, dataIndex: ‘prodNo‘, align: ‘left‘, width: 80 },
{
header: "名称",
width: 200,
dataIndex: ‘prodNameZh‘,
align: ‘left‘,
renderer: function (value, metaData, record) {//自定义列值组合
var path = record.get("prcaImg");
var txt = value;
if (path != "" && path != null) {
txt = ‘<span style="color:blue;display:table;width:100%;" qtip=\‘<img width="280" src="upload/‘
+ path.charAt(0) + "/" + path + ‘">\‘>‘ + txt + ‘</span>‘;
}
return txt;
},
sortable: true
},
{ text: ‘排序‘, dataIndex: ‘prcaOrderBy‘, minWidth: 20,editor: { xtype: ‘numberfield‘ } },
{ text: ‘商品标题‘, dataIndex: ‘prcaTitle‘,align: ‘left‘, minWidth: 300,editor: { xtype: ‘textfield‘ } },
{ text: ‘市场价‘, dataIndex: ‘prcaPrice‘, minWidth: 20,editor: { xtype: ‘numberfield‘ } },
{ text: ‘售价‘, dataIndex: ‘prcaSalesPrice‘, minWidth: 40,editor: { xtype: ‘numberfield‘ } },
{ text: ‘可获金币‘, dataIndex: ‘prcaDeductPoint‘, minWidth: 30,editor: { xtype: ‘numberfield‘ } },
{ text: ‘购买使用金币‘, dataIndex: ‘prcaSalePoint‘, minWidth: 20,editor: { xtype: ‘numberfield‘ } },
{ text: ‘库存‘, dataIndex: ‘prcaStorage‘, minWidth: 40,editor: { xtype: ‘numberfield‘ } },
{ text: ‘起始日期‘, dataIndex: ‘prcaIndateStart‘, minWidth: 40,editor: { xtype: ‘datefield‘} },
{ text: ‘结束日期‘, dataIndex: ‘prcaIndateEnd‘, minWidth: 40,editor: { xtype: ‘datefield‘} },
{ text: ‘含运费‘, dataIndex: ‘prcaFreight‘, minWidth: 40,editor: { xtype: ‘numberfield‘ } },
{ text: ‘跳转地址‘, dataIndex: ‘prcaRedirectUrl‘, minWidth: 40,editor: { xtype: ‘textfield‘ } },
{ text: ‘总件数(团购专用)‘, dataIndex: ‘prcaProdTotal‘, minWidth: 40,editor: { xtype: ‘numberfield‘ } },
{ text: ‘已订购人数(团购专用)‘, dataIndex: ‘prcaIntegral‘, minWidth: 40,editor: { xtype: ‘numberfield‘ } },
],
bbar: [{
xtype: ‘pagingtoolbar‘,
store: catalogEditProductStore,
displayMsg: ‘显示 {0} - {1} 条，共计 {2} 条‘,
emptyMsg: "没有数据",
beforePageText: "当前页",
afterPageText: "共{0}页",
displayInfo: true
// listeners: {
// beforechange: function (ts, page, eOpts) {//分页 加载查询数据
// Ext.apply(catalogEditProductStore.proxy.extraParams,CatalogTtree.getSelectionModel().getSelection()[0].data);
// }
// }
}],
tbar: [
{ text: ‘保存‘, iconCls: ‘a_edit2‘ ,handler:showSelectedOptions}, "-",
{ text: ‘删除‘, iconCls: ‘a_delete‘,handler:showSelectedOptions }, "-",
{ text: ‘上传主图‘, iconCls: ‘a_upload‘,handler:showSelectedOptions }, "-",
{ text: ‘刷新‘, iconCls: ‘a_refresh‘,handler:showSelectedOptions }, "-",
{text:‘添加提报商品‘,iconCls:‘a_add‘,handler:showSelectedOptions},"-"],
plugins : [RowEditing], //绑定编辑对象
});
catalogEditProduct.getView().on("render",function(view){
view.tip=Ext.create(‘Ext.tip.ToolTip‘,{
target:view.el,
delegate:view.itemSelector,
trackMouse:true,
renderTo:Ext.getBody(),
listeners:{
beforeshow:function(tip){
var record=view.getRecord(tip.triggerElement);
var ucc=record.get("prcaImg").substring(0,1);
var html="<div ><img width=‘300px‘ src=‘/upload/"+ucc+"/"+record.get("prcaImg")+"‘></div>";
tip.update(html);
}
}
});
});
var centerPanel = Ext.create("Ext.panel.Panel", {
region: ‘center‘,
defaults: {
autoScroll: true,
// autoHeight: true
},
items: [catalogEditProduct]
});
new Ext.Viewport({
layout: "border",
rederTo: Ext.getBody(),
defaults: {
frame: true
},
items: [centerPanel]
});
function showSelectedOptions() {
var rows = catalogEditProduct.getView().getSelectionModel().getSelection();
var msg = "";
for (var i = 0; i < rows.length; i++) {
msg = msg + rows[i].get(‘prcaId‘) + ‘,‘;
}
Ext.MessageBox.alert("标题", msg);
}
});
</script>
</head>
<body>
</body>
</html>
注释：
1、标记变色
{ header: "名称", width: 200, dataIndex: ‘prodNameZh‘, align: ‘left‘, renderer: function (value, metaData, record) {//自定义列值组合 var path = record.get("prcaImg"); var txt = value; if (path != "" && path != null) { txt = ‘<span style="color:blue;display:table;width:100%;" qtip=\‘<img width="280" src="upload/‘ + path.charAt(0) + "/" + path + ‘">\‘>‘ + txt + ‘</span>‘; } return txt; }, sortable: true },
附图：
2、Grid行tip提示
catalogEditProduct.getView().on("render",function(view){
view.tip=Ext.create(‘Ext.tip.ToolTip‘,{
target:view.el,
delegate:view.itemSelector,
trackMouse:true,
renderTo:Ext.getBody(),
listeners:{
beforeshow:function(tip){
var record=view.getRecord(tip.triggerElement);
var ucc=record.get("prcaImg").substring(0,1);
var html="<div ><img width=‘300px‘ src=‘/upload/"+ucc+"/"+record.get("prcaImg")+"‘></div>";
tip.update(html);
}
}
});
});
附图：
3、Grid行编辑
var RowEditing = Ext.create(‘Ext.grid.plugin.RowEditing‘, { // 行编辑模式 clicksToMoveEditor : 2, //双击编辑 整行修改 autoCancel : false, saveBtnText:‘确定‘, cancelBtnText:‘取消‘, errorsText:‘错误‘, dirtyText:‘你要确认或取消更改‘ });
首先上面那段代码加上，然后columns里面配置editor（详见上面代码），最后在 Grid中配置plugins : [RowEditing]。。
grid就先整理这么多，下一篇预告为：TreePanel。。I hope it‘ll help you , Thanks for reading..