用于dijit.tree和dojox.grid的相同dojo.data-store
用于dijit.tree和dojox.grid的相同dojo.data-store
提问于 2011-05-19 16:45:21
我想实现一种文件浏览器，其中用户可以使用文件夹树导航，并在网格中查看文件夹内容。
我想对这两个小部件使用相同的数据存储，但看不到如何实现-树需要具有子属性的项，而网格只需要这些子属性。
因为可能有一个很大的数据集，所以我计划使用jsonreststore。
回答 2
Stack Overflow用户
发布于 2011-06-01 17:24:34
我尝试了一下，得到了一个像这样的解决方案，请注意，网格和树使用的是同一个.。这里的问题是，如果文件夹的id为fld1，那么该文件夹下的所有文件都应该具有类似于"fld1f1"，"fld1f2“的id模式。
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html dir="ltr">
<head>
<style type="text/css">
body, html { font-family:helvetica,arial,sans-serif; font-size:90%; }
</style>
<script src="djlib/dojo/dojo.js" djConfig="parseOnLoad: true"></script>
<link rel="stylesheet" type="text/css" href="http://ajax.googleapis.com/ajax/libs/dojo/1.6/dijit/themes/claro/claro.css"/>
<link rel="stylesheet" type="text/css" href="djlib/dojox/grid/resources/Grid.css"/>
<link rel="stylesheet" type="text/css" href="djlib/dojox/grid/resources/claroGrid.css"/>
</head>
<body class=" claro ">
<div id="treeOne"></div>
<div id="gridHolder" style="height:500px"></div>
</body>
<script type="text/javascript">
s =[];
dojo.require("dijit.tree.ForestStoreModel");
dojo.require("dojo.data.ItemFileReadStore");
dojo.require("dijit.Tree");
dojo.require("dojox.grid.DataGrid");
dojo.addOnLoad(function(){
baseStore = new dojo.data.ItemFileReadStore({
data:{
identifier: 'id',
label: 'name',
items: [
{id:'fld1',name:'folder 1', type:"folder", files:[{_reference:'fld1f1'},{_reference:'fld1f2'}]},
{id:'fld1f1',name:'file 1 of folder 1', type:"file", size:'1KB', dateLstMod:'15/15/2001'},
{id:'fld1f2',name:'file 2 of folder 1', size:'1KB', type:"file", dateLstMod:'15/15/2001'},
{id:'fld2',name:'folder 2', type:"folder", files:[{_reference:'fld2f1'},{_reference:'fld2f2'}]},
{id:'fld2f1',name:'file 1 of folder 2', size:'1KB', type:"file", dateLstMod:'15/15/2001'},
{id:'fld2f2',name:'file 2 of folder 2', size:'1KB', type:"file",dateLstMod:'15/15/2001'},
{id:'fld3',name:'folder 3', type:"folder"}
]
}
});
treeModel = new dijit.tree.ForestStoreModel({
store: baseStore,
query:{
type:'folder'
},
rootId: "root",
rootLabel: "List of folders on this drive",
childrenAttrs:['files']
})
t = new dijit.Tree({
model: treeModel
},"treeOne")
dojo.connect(t,'onClick', function(item, node, evt){
if(node.isExpandable){
updateGrid(baseStore.getValues(item,"id"));
}
})
function updateGrid(folderId){
grid.filter({
type:'file' , id:folderId+'*'
},true);
}
var gridStr = [{
cells:[
[
{ field: "name", name: "File Name", width: 'auto' },
{ field: "size", name: "Size", width: 'auto'},
{ field: "dateLstMod", name: "Date Last Modified", width: 'auto'}
]
]
}]
grid = new dojox.grid.DataGrid({
store:baseStore,
structure: gridStr,
noDataMessage:"NO DATA"
}, 'gridHolder');
grid.startup();
grid.filter({
type:'filee'
},true);
}) Stack Overflow用户
发布于 2011-08-31 22:01:28
我认为这个链接有答案，您不需要将网格指向商店，而是通过迭代商店中相关的子项来创建网格并添加项目
http://groups.google.com/group/dojo-interest/browse_thread/thread/af7265b19edeeb0/9fee8b5498746dd8
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/6056012
复制相关文章
相似问题
腾讯云开发者
Copyright © 2013 - 2026 Tencent Cloud. All Rights Reserved. 腾讯云 版权所有
深圳市腾讯计算机系统有限公司 ICP备案/许可证号：粤B2-20090059 
粤公网安备44030502008569号
腾讯云计算（北京）有限责任公司 京ICP证150476号 | 京ICP备11018762号