Learning Dojo - 7. dojo.data _Web前端_代码迷

reading/writing data, of course

2. Members
a.Attributes
    i. data store: get data from data source
   ii. data source: some url
iii. item = row
        identity = id
        label   = the "name" of an item (e.g. "companyName = 'IBM' ")
        attribute/value = column/value
b.Operations
        query = where sql operation
       fetch = get data
        request = sort/limit

3.4 features
   a. Read
   b. Write
   c. Identity => Random Access by Id
   d. Notification => hook the data with events

A widget example

 
    <div dojoType="dojo.data.ItemFileReadStore" 
         url="datasources/genetox.json"
         jsId="genetoxStoreDeclarative"
         />   



<div dojoType="dijit.form.FilteringSelect"
                store="genetoxStoreDeclarative"
                searchAttr="docno"
                labelAttr="substance"
                name="subname"
                query="{ date: '1995*' }"
                />

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