Ext. Data-groupingstore/jsonstore/simplestore

Ext. Data. groupingstore

Inherited from Ext. Data. Store and added the grouping function for store. Other usage is the same as that for store. The only thing you need to note is that you must specify sortinfo information when using groupingstore.
Added configuration attributes.
Groupfield: String // field used for grouping
Grouponsort: Boolean // if it is true, the sorting fields are regrouped. The default value is false.
Remotegroup: Boolean // remote sorting
Of course, there will be one more group method.
Groupby (string field, [Boolean forceregroup]): void
As the name implies, they are all re-ordered.

The following is a simple example.
VaR arr = [[1, 'bene', 'binladen '], [2, 'dump', 'binladen'], [3, 'dump ', 'lamp'];
VaR reader = new Ext. Data. arrayreader (
{ID: 0 },
[
{Name: 'name', mapping: 1 },
{Name: 'occupation', mapping: 2}
]);

VaR store = new Ext. Data. groupingstore ({
Reader: reader,
Groupfield: 'name ',
Grouponsort: True,
Sortinfo: {field: 'occupation', ction: "ASC"} // you must specify sortinfo information when using groupingstore.
});
Store. loaddata (ARR );

// Gridpanel will be discussed later. It is used here to intuitively express groupingstore
VaR grid = new Ext. Grid. gridpanel ({
DS: store,
Columns :[
{Header: "name", width: 20, sortable: True, dataindex: 'name '},
{Header: "Occupation", width: 20, sortable: True, dataindex: 'occupation '}
],
View: New Ext. Grid. groupingview ({
Forcefit: True,
Grouptexttpl: '{text} ({[values. Rs. Length]} {[values. Rs. length> 1? "Items": "item"]})'
}),
Frame: True,
Width: 700,
Height: 450,
Collapsible: True,
Animcollapse: false,
Title: 'groupexample ',
Renderto: 'div _ gridpanel'
});

Ext. Data. jsonstore

It is also a store subclass, with the goal of making it easier to use JSON objects as data sources.
Fields and root are added in the structure. The usage is as follows:
/*
This is a remote object. The returned content is consistent with the data of the local object below.
VaR store = new Ext. Data. jsonstore ({
URL: 'jsoncallback. js'
,
Root: 'rows ',
Fields: ['id', 'name', 'occupation']
});
Store. Load ();
*/
VaR store = new Ext. Data. jsonstore ({
Data: {'results': 2, 'rows ':[
{'Id': 1, 'name': 'Bill ', Occupation: 'gardener '},
{'Id': 2, 'name': 'ben', Occupation: 'horticulturalist '}
]},
Autoload: True,
Root: 'rows ',
Fields: ['id', 'name', 'occupation']
})

// Skip gridpanel before proceeding
VaR grid = new Ext. Grid. gridpanel ({
DS: store,
Columns :[
{Header: "ID", width: 200, sortable: True, dataindex: 'id '},
{Header: "name", width: 200, sortable: True, dataindex: 'name '},
{Header: "Occupation", width: 200, sortable: True, dataindex: 'occupation '}
], Height: 350,
Width: 620,
Title: 'array grid ',
Renderto: 'div _ gridpanel'
});

Ext. Data. simplestore

Create a store object more conveniently from an array object,
Example
VaR store = new Ext. Data. jsonstore ({
Data :[
[1, 'bill ', 'gardener'], [2, 'ben', 'horticulturalist']
],
Autoload: True,
Fields: [{Name: 'name', mapping: 1}, {Name: 'occupation', mapping: 2}]
})
VaR grid = new Ext. Grid. gridpanel ({
DS: store,
Columns :[
{Header: "name", width: 200, sortable: True, dataindex: 'name '},
{Header: "Occupation", width: 200, sortable: True, dataindex: 'occupation '}
], Height: 350,
Width: 620,
Renderto: 'div _ gridpanel'
});

Author name: blackant2
Author blog: http://blog.csdn.net/blackant2