Extjs4 GridPanel 的几种样式详解

简单表格

排序,显示某列,读取本地数据





//本地数据

var datas = [

['1', 'gao', 'man'], ['2', 'gao', 'man'], ['3', 'gao', 'man']

];

//创建面板

Ext.create('Ext.grid.Panel', {

title: 'easy grid',

width: 400,

height: 300,

renderTo: Ext.getBody(),

frame: true,

viewConfig: {

forceFit: true,

stripRows: true

},

store: {//配置数据代理

fields: ['id', 'name', 'gender'],

proxy: {

type: 'memory',

data: datas,

reader: 'array' //数据读取器为 数据读取

},

autoLoad: true

},

columns: [{ //自定义列信息

header: 'id',

width: 30,

dataIndex: 'id', //绑定fields中得字段

sortable: true

}, {

header: 'name',

width: 80,

dataIndex: 'name',

sortable: true

}, {

header: 'gender',

width: 80,

dataIndex: 'gender',

sortable: true

}

]

})

表格列:

行号, bool行转成是否,日期格式化输出(date,top day), number数据类型格式化输出(change,volume),Action列(操作列)





代码;

Ext.tip.QuickTipManager.init();

Ext.create('Ext.data.Store', {

storeId: 'sampleStore',

fields: [{

name: 'framework',

type: 'string'

}, {

name: 'rocks',

type: 'boolean'

}, {

name: 'volume',

type: 'number'

}, {

name: 'topday',

type: 'date'

}, {

name: 'change',

type: 'number'

}, {

name: 'date',

type: 'date'

}, {

name: 'price',

type: 'number'

}

],

data: {

'items': [{

"framework": "Ext JS 1",

"rocks": true,

"symbol": "goog",

"date": '2011/04/22',

"change": 0.8997,

"volume": 3053782,

"topday": '04/11/2010',

"price": 1000.23

}, {

"framework": "Ext JS 2",

"rocks": true,

"symbol": "goog",

"date": '2011/04/22',

"change": 0.8997,

"volume": 3053782,

"topday": '04/11/2010',

"price": 1000.23

}, {

"framework": "Ext JS 3",

"rocks": true,

"symbol": "goog",

"date": '2011/04/22',

"change": 0.8997,

"volume": 3053782,

"topday": '04/11/2010',

"price": 1000.23

}]

},

proxy: {

type: 'memory',

reader: {

type: 'json',

root: 'items'

}

}

});

Ext.create('Ext.grid.Panel', {

title: 'Boolean Column Demo',

store: Ext.data.StoreManager.lookup('sampleStore'),

columns: [

Ext.create('Ext.grid.RowNumberer', { text: '行号', width: 40 }),

{

text: 'Framework',

dataIndex: 'framework',

width: 100

}, {

xtype: 'booleancolumn',

text: 'Rocks',

trueText: '是',

falseText: '否',

dataIndex: 'rocks'

}, {

text: 'Date',

dataIndex: 'date',

xtype: 'datecolumn',

format: 'Y年m月d日'

}, {

text: 'Change',

dataIndex: 'change',

xtype: 'numbercolumn',

format: '0.000'

}, {

text: 'Volume',

dataIndex: 'volume',

xtype: 'numbercolumn',

format: '0,000'

}, {

text: 'Top Day',

dataIndex: 'topday',

xtype: 'datecolumn',

format: 'l'

}, {

text: 'Current Price',

dataIndex: 'price',

renderer: Ext.util.Format.usMoney

}, {

header: '操作',

xtype: 'actioncolumn', //操作列

width: 100,

items: [{

icon: 'e.gif', // 编辑图片地址

tooltip: ‘编辑’, //鼠标over显示的文字 使用此功能,必须 Ext.tip.QuickTipManager.init();

handler: function (grid, rowIndex, colIndex) {

var rec = grid.getStore().getAt(rowIndex);

alert("Edit " + rec.get('framework'));

}

}, {

icon: 'd.gif',

tooltip: 'Delete',

handler: function (grid, rowIndex,

colIndex) {

var rec = grid.getStore().getAt(rowIndex);

alert("Terminate " + rec.get('framework'));

}

}]

}, {

}

],

height: 200,

width: 800,

renderTo: Ext.getBody()

});

下面这个图是 单击 操作(编辑,删除)按钮触发的回调函数的详细信息.





下面演示 自定义 渲染函数

效果:



Ext.tip.QuickTipManager.init();

function customFunction(value, metadata) {

if (value > 10) {

metadata.style = 'color:red';

}

return value;

}

Ext.create('Ext.data.Store', {

storeId: 'sampleStore',

fields: [ {

name: 'custom',

type: 'number'

}

],

data: {

'items': [{

"custom": 10

}, {

"custom": 100

}, {

"custom": 1000

}]

},

proxy: {

type: 'memory',

reader: {

type: 'json',

root: 'items'

}

}

});

Ext.create('Ext.grid.Panel', {

title: 'Boolean Column Demo',

store: Ext.data.StoreManager.lookup('sampleStore'),

columns: [

Ext.create('Ext.grid.RowNumberer', { text: '行号', width: 40 }),

{

text: 'custom',

dataIndex: 'custom',

renderer: customFunction //调用自定义函数 来渲染

}

],

height: 200,

width: 800,

renderTo: Ext.getBody()

});

选择模式:Selection

选择模式分为三类:

1,行选择(默认)

2.单元格选择

3.复选框选择(checkbox组)

演示单元格选择代码:





只需在上述代码配置节当中,加入

tbar: [

{

text: '取得所选单元格',

handler: function () {

var cell = grid.getSelectionModel().getCurrentPosition(); //getSelectionModel()获取当前选择模式,getCurrentPosition()获取当前选择的单元格

alert(Ext.JSON.encode(cell));

}

}

],

selType:'cellmodel' //设置 选择模式 为 单元格选择

行选择:

效果:



tbar: [

{

text: '取得所选行',

handler: function () {

var rows = grid.getSelectionModel().getSelection(); //getSelection();获取当前选中的记录数组

var msg = [];

for (var i = 0; i < rows.length; i++) {

var row = rows[i];

var myDate = new Date(row.get('date'));

msg.push('选中行的Date列:' + myDate.toLocaleString()); //转换时间格式

}

alert(msg.join('\n'));

}

}

],

selType: 'rowmodel', //选择模式为 行选择

simpleSelect: true, //简单选择功能开启

multiSelect: true, // 启用多行选择

enableKeyNav: true //启用键盘导航

复选框选择:

效果:



tbar: [

{

text: '取得所选行',

handler: function () {

var rows = grid.getSelectionModel().getSelection(); //getSelection();获取当前选中的记录数组

var msg = [];

for (var i = 0; i < rows.length; i++) {

var row = rows[i];

var myDate = new Date(row.get('date'));

var s = grid.getStore(); //获取grid的数据源

var number = s.indexOf(row) + 1; //获取行号+1 因为行号从0开始

msg.push('选中第' + number + '行的Date列:' + myDate.toLocaleString());

}

alert(msg.join('\n'));

}

}

],

selType: 'checkboxmodel', //选择模式为 行选择

simpleSelect: true, //简单选择功能开启

multiSelect: true, // 启用多行选择

enableKeyNav: true //启用键盘导航

表格特性: Feature

表格汇总 Ext.grid.feature.Summary





汇总值计算 根据表格的每一列进行计算,计算方式 有指定的 summaryType决定.默认的有

上图5种.

此例应用 sum和average





Ext.define('TestResult', {

extend: 'Ext.data.Model',

fields: ['student', {

name: 'mark',

type: 'int'

}]

});

var grid = Ext.create('Ext.grid.Panel', {

width: 200,

height: 140,

renderTo: document.body,

features: [{

ftype: 'summary'

}],

store: {

model: 'TestResult',

data: [{

student: 'Student 1',

mark: 84

}, {

student: 'Student 2',

mark: 72

}, {

student: 'Student 3',

mark: 96

}, {

student: 'Student 4',

mark: 68

}]

},

columns: [{

dataIndex: 'student',

text: 'Name',

summaryType: 'count', //进行汇总的列名

summaryRenderer: function (value) {

grid.getStore()

return Ext.String.format('{0} student{1}', value, value !== 1 ? 's' : '');

}

}, {

dataIndex: 'mark',

text: 'Mark',

summaryType: 'average'

}]

})

var grid = Ext.create('Ext.grid.Panel', {

width: 200,

height: 140,

renderTo: document.body,

features: [{

ftype: 'summary'

}],

store: {

model: 'TestResult',

data: [{

student: 'Student 1',

mark: 84

}, {

student: 'Student 2',

mark: 72

}, {

student: 'Student 3',

mark: 96

}, {

student: 'Student 4',

mark: 68

}]

},

columns: [{

dataIndex: 'student',

text: 'Name',

summaryType: 'count', //进行汇总的列名

summaryRenderer: function (value) {

// grid.getStore()

return Ext.String.format('{0} student{1}', value, value !== 1 ? 's' : '');

}

}, {

dataIndex: 'mark',

text: 'Mark',

summaryType: 'average',

,

summaryRenderer: function (value) {

// grid.getStore()

return Ext.String.format(' 平均分为:{0}', value);

}]

})

表格分组:Ext.grid.feature.Grouping





代码:

Ext.define('TestResult', {

extend: 'Ext.data.Model',

fields: ['student', 'class', {

name: 'mark',

type: 'int'

}]

});

var grid = Ext.create('Ext.grid.Panel', {

width: 400,

height: 300,

renderTo: document.body,

features: [

Ext.create('Ext.grid.feature.Grouping',

{

groupByText: '用本字段分组',

showGroupsText: '显示分组',

groupHeaderTpl: '班级: {name} ({rows.length})', //分组显示的模板

startCollapsed: true //设置初始分组是不是收起

})

],

store: {

model: 'TestResult',

groupField: 'class',

data: [{

student: 'Student 1',

class: '1',

mark: 84

}, {

student: 'Student 2',

class: '1',

mark: 72

}, {

student: 'Student 3',

class: '2',

mark: 96

}, {

student: 'Student 4',

class: '2',

mark: 68

}]

},

columns: [{

dataIndex: 'student',

text: 'Name',

summaryType: 'count', //进行汇总的列名

summaryRenderer: function (value) {

grid.getStore()

return Ext.String.format('{0} student{1}', value, value !== 1 ? 's' : '');

}

}, {

dataIndex: 'mark',

text: 'Mark',

summaryType: 'average'

},

{ dataIndex: 'class',

text: 'class'

}]

})

//在不同的列下面点击 “用本字段分组”那么表格就会立即改变分组规则.

表格的分组汇总:Ext.grid.feature.GroupSummary





代码只需要把上面的

Grouping 改成 GroupingSummary

表格插件: plugin

单元格编辑 Ext.grid.plugin.CellEditing









代码:

var datas = [['gao', Date(1922, 02, 03), 2000]];

Ext.create('Ext.grid.Panel', {

title: '演示',

frame: true,

renderTo: Ext.getBody(),

width: 400,

height: 300,

store: {

fields: ['name', 'birth', 'salary'],

data: datas,

proxy: {

type: 'memory',

data: datas,

reader: 'array'

},

autoLoad: true

},

plugins: [

Ext.create('Ext.grid.plugin.CellEditing', {

clicksToEdit: 1

})

],

selType: 'cellmodel',

columns: [Ext.create('Ext.grid.RowNumberer', { text: '行号', width: 40 }),

{

header: '姓名',

width: 80,

dataIndex: 'name',

editor: {//定义字段

xtype: 'textfield',

allowBlank: false,

}

}

,

{

header: '生日',

width: 100,

dataIndex: 'birth',

xtype: 'datecolumn',

editor: {//定义字段

xtype: 'datefield',

format: 'Y-m-d',

allowBlank: false

}

}

,

{

header: '工资',

width: 100,

dataIndex: 'salary', xtype: 'numbercolumn',

editor: {//定义字段

xtype: 'numberfield',

format: '$0,000',

allowBlank: false

}

}

]

})

表格 行编辑器Ext.grid.plugin.RowEditing





代码只需:

把 CellEditing 改成 RowEditing

想要获取修改后的数据,ajax请求服务器,做出响应.

grid.on('edit', onEdit, this); //添加编辑事件,获取数据

function onEdit(e) {

alert(e.record.get('name')); //get()参数是字段名字.

}

gridpanel中的checkbox列 根据数据库值 来初始化是否被选

listeners: {

load: function(store) {

var index = 0;

store.each(function(record) {

if(record.data.column_name == '1') { //column_name 替换成你的列名， '1' 替换成你的值

grid.selModel.selectRow(index,true);

}

index++;

})

}

}