Extjs4 GridPanel 的几种样式使用介绍

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++; 
}) 
} 
}