为什么我的ExtJS datagrid填充为空? [英] Why is my ExtJS datagrid populating as empty?
问题描述
我正在尝试提供一个概念证明ExtJS datagrid在移动到基于服务器的商店的途中。目前我的代码如下:
var arrayData = [
['','Held',' ,'','abc','','100.00','0.00','内部批准'],
/ * 11类似的行被删除为了消毒的缘故* /
/ *我试过有和没有报价的货币金额。 * /
];
var nameRecord = Ext.data.Record.create([
{name:'approved_date',mapping:1},
{name:'approval_status',mapping:2 },
{name:'approval_id',mapping:3},
{name:'reference_id',mapping:4},
{name:'manufacturer_distributor_name',mapping:5}
{name:'shipping_authorization_number',mapping:6},
{name:'purchase_order_number',mapping:7},
{name:'original_amount',mapping:8},
{name:'open_amount',mapping:9},
{name:'requestor',mapping:10}
]);
var arrayReader = new Ext.data.ArrayReader({},nameRecord);
var memoryProxy = new Ext.data.MemoryProxy(arrayData);
var store = new Ext.data.Store({
reader:arrayReader,
proxy:memoryProxy
});
var columnModel = new Ext.grid.ColumnModel([
{
header:'Approved Date',
sortable:true,
dataIndex:'approved_date'
},
{
标题:'批准状态',
可排序:true,
dataIndex:'approval_status'
} ,
{
header:'Approval ID',
sortable:true,
dataIndex:'approval_id'
},
{
header :'参考ID',
可排序:true,
dataIndex:'reference_id'
},
{
标题:'制造商/经销商名称',
sortable:true,
dataIndex:'manufacturer_distributor_name'
},
{
header:'运送授权号',
可排序:true,
dataIndex :'shipping_authorization_number'
},
{
header:'采购订单号',
可排序:真,
dataIndex:'purchase_order_number'
}
{
header:'原始金额',
可排序:true,
dataIndex:'original_amount'
},
{
标题:'开放金额',
可排序:真,
dataIndex:'open_amount',
},
{
header:'Requestor',
sortable:true,
dataIndex:'requestor'
} ]);
var gridView = new Ext.grid.GridView();
var selectionModel = new Ext.grid.RowSelectionModel({
singleSelect:true
});
var grid = new Ext.grid.GridPanel({
title:'Approvals',
renderTo:Ext.getBody(),
height:500,
width:700,
store:store,
view:gridView,
colModel:columnModel,
selModel:selectionModel
});
这是为了密切关注第159-161页上的Hello world级别的网格示例在耶稣加西亚的ExtJS in Action中。就这样,我的代码用空白的白色区域填充列名称;也就是说,它在FF / Chrome上显示列名称和空白的白色区域,并且在IE6-8上似乎没有显示任何内容。在Chrome中,JavaScript控制台不会显示任何错误消息或其他记录的信息。
有关我的代码有什么问题或我如何解决它的任何建议? / p>
IE-6-8可能不喜欢 dataIndex中的悬挂逗号:'open_amount',
(以及FF / Chrome会原谅的任何其他语法错误)
您可以发布您在FF / Chrome中看到的内容的屏幕截图吗? / p>
您的代码可以简化一些。例如只需使用 ArrayStore ,而不是阅读器,代理记录,商店组合
编辑 -
var grid = new Ext。 grid.GridPanel({
title:'Approvals',
renderTo:Ext.getBody(),
height:500,
width:700,
store:new Ext.data.ArrayStore({
idIndex:0,
fields:['approved_date','approval_status',{name:'approval_id',type:'int'}] //指定其他字段
}),
cm:new Ext.grid.ColumnModel({
defaults:{
sortable:true,
width:200
},
列:[{
header:'Approval Date',
dataIndex:'approved_date'
},{
header:'Approval Status',
dataIndex :'approval_status'
},{
header:'Approval ID',
dataIndex:'approval_id'
}]
})
});
var myData = [
['01 / 01/11','Held',1],
['02 / 02/11','Approved',2 ]
]
grid.getStore()。loadData(myData);
I am trying to make a proof of concept ExtJS datagrid en route to moving to a server-based store. At present my code is as follows:
var arrayData = [
['', 'Held', '', '', 'abc', '', '100.00', '0.00', 'Internal Approval'],
/* 11 similar rows deleted for sanitization's sake */
/* I've tried with and without quotes around the monetary amounts. */
];
var nameRecord = Ext.data.Record.create([
{name: 'approved_date', mapping: 1},
{name: 'approval_status', mapping: 2},
{name: 'approval_id', mapping: 3},
{name: 'reference_id', mapping: 4},
{name: 'manufacturer_distributor_name', mapping: 5},
{name: 'shipping_authorization_number', mapping: 6},
{name: 'purchase_order_number', mapping: 7},
{name: 'original_amount', mapping: 8},
{name: 'open_amount', mapping: 9},
{name: 'requestor', mapping: 10}
]);
var arrayReader = new Ext.data.ArrayReader({}, nameRecord);
var memoryProxy = new Ext.data.MemoryProxy(arrayData);
var store = new Ext.data.Store({
reader: arrayReader,
proxy: memoryProxy
});
var columnModel = new Ext.grid.ColumnModel([
{
header: 'Approved Date',
sortable: true,
dataIndex: 'approved_date'
},
{
header: 'Approval Status',
sortable: true,
dataIndex: 'approval_status'
},
{
header: 'Approval ID',
sortable: true,
dataIndex: 'approval_id'
},
{
header: 'Reference ID',
sortable: true,
dataIndex: 'reference_id'
},
{
header: 'Manufacturer / Distributor Name',
sortable: true,
dataIndex: 'manufacturer_distributor_name'
},
{
header: 'Shipping Authorization Number',
sortable: true,
dataIndex: 'shipping_authorization_number'
},
{
header: 'Purchase Order Number',
sortable: true,
dataIndex: 'purchase_order_number'
},
{
header: 'Original Amount',
sortable: true,
dataIndex: 'original_amount'
},
{
header: 'Open Amount',
sortable: true,
dataIndex: 'open_amount',
},
{
header: 'Requestor',
sortable: true,
dataIndex: 'requestor'
}]);
var gridView = new Ext.grid.GridView();
var selectionModel = new Ext.grid.RowSelectionModel({
singleSelect: true
});
var grid = new Ext.grid.GridPanel({
title: 'Approvals',
renderTo: Ext.getBody(),
height: 500,
width: 700,
store: store,
view: gridView,
colModel: columnModel,
selModel: selectionModel
});
This is intended to closely follow the "Hello world"-level grid example on pp. 159-161 in Jesus Garcia's ExtJS in Action. As it stands, my code populates column names with a blank white area; that is, it displays the column names and a blank white area on FF/Chrome, and doesn't seem to display anything on IE6-8. In Chrome, the JavaScript console does not show any error messages, or other logged information.
Any suggestions about what is wrong with my code or how I can fix it?
IE-6-8 may not be liking the dangling comma at dataIndex: 'open_amount',
(and any other syntax errors that FF/Chrome would forgive)
Can you post a screenshot of what you are seeing in FF/Chrome?
Your code can be simplified quite a bit. e.g. Simply use ArrayStore instead of reader,proxy,record,store combination
EDIT-
var grid = new Ext.grid.GridPanel({
title: 'Approvals',
renderTo: Ext.getBody(),
height: 500,
width: 700,
store: new Ext.data.ArrayStore({
idIndex:0,
fields: ['approved_date', 'approval_status',{name:'approval_id', type:'int'}] //specify other fields here
}),
cm:new Ext.grid.ColumnModel({
defaults:{
sortable:true,
width:200
},
columns:[{
header:'Approval Date',
dataIndex:'approved_date'
},{
header:'Approval Status',
dataIndex:'approval_status'
},{
header:'Approval ID',
dataIndex:'approval_id'
}]
})
});
var myData=[
['01/01/11','Held', 1],
['02/02/11','Approved', 2]
]
grid.getStore().loadData(myData);
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