Javascript 我们如何在dojo TreeGrid中设置孩子？

当我使用

LazyTreeGrid

时，我遇到了一个小问题； 我的JSON文件如下所示：

{id: 'AF', name:'Africa',description:""},
{id: 'EG', name:'Egypt',description:""},
{id: 'KE', name:'Kenya',description:
 {
  compents: 
   [
    {id: 'Nairobi', name:'Nairobi', type:'city'},
    {id: 'Mombasa', name:'Mombasa', type:'city'}
   ]     
 }
}

---

我不知道如何在

ForestStoreModel

中设置子项，可能像

childrenAttrs:['description.compents']

（不幸的是，它不起作用…？

我找到了一个解决方案，我们可以像这样使用

onComplete

var model = new ForestStoreModel( {
    getChildren : function ( item, onComplete, onError ) {
        onComplete( item.dataDescription.components );
        }
} );

var restStore = new JsonRest
    ({
        target: "http://localhost........",
        headers: { 'Content-Type': 'application/json;charset=utf-8' }
    });

    // Get an object by identity, then the remaining code will be executed (because of the async)
    // Otherwise the remaining code will be executed, before we get the object from the server (it wouldn't work)
    restStore.get("").then(function(items)
    {
        // set up a local store to get the tree data, plus define the method
        // to query the children of a node
        var MemoryStore = new Memory
        ({
            data: items,
            getChildren: function(object)
            {
                return this.query({parent: object.id});
            }
        });

---

这对我来说很好。

我找到了一个解决方案，我们可以像这样使用

onComplete

var model = new ForestStoreModel( {
    getChildren : function ( item, onComplete, onError ) {
        onComplete( item.dataDescription.components );
        }
} );

var restStore = new JsonRest
    ({
        target: "http://localhost........",
        headers: { 'Content-Type': 'application/json;charset=utf-8' }
    });

    // Get an object by identity, then the remaining code will be executed (because of the async)
    // Otherwise the remaining code will be executed, before we get the object from the server (it wouldn't work)
    restStore.get("").then(function(items)
    {
        // set up a local store to get the tree data, plus define the method
        // to query the children of a node
        var MemoryStore = new Memory
        ({
            data: items,
            getChildren: function(object)
            {
                return this.query({parent: object.id});
            }
        });

---

这对我来说很好。

对于Json文件和正常的懒散加载树，我也有同样的问题

为了得到孩子们，我这样做了

var model = new ForestStoreModel( {
    getChildren : function ( item, onComplete, onError ) {
        onComplete( item.dataDescription.components );
        }
} );

var restStore = new JsonRest
    ({
        target: "http://localhost........",
        headers: { 'Content-Type': 'application/json;charset=utf-8' }
    });

    // Get an object by identity, then the remaining code will be executed (because of the async)
    // Otherwise the remaining code will be executed, before we get the object from the server (it wouldn't work)
    restStore.get("").then(function(items)
    {
        // set up a local store to get the tree data, plus define the method
        // to query the children of a node
        var MemoryStore = new Memory
        ({
            data: items,
            getChildren: function(object)
            {
                return this.query({parent: object.id});
            }
        });

我不知道你是否必须从另一台服务器上获取json文件，但也许它也能起到类似的作用

您好

---

Alex

我对Json文件和正常的lazyloading树也有同样的问题

为了得到孩子们，我这样做了

var model = new ForestStoreModel( {
    getChildren : function ( item, onComplete, onError ) {
        onComplete( item.dataDescription.components );
        }
} );

var restStore = new JsonRest
    ({
        target: "http://localhost........",
        headers: { 'Content-Type': 'application/json;charset=utf-8' }
    });

    // Get an object by identity, then the remaining code will be executed (because of the async)
    // Otherwise the remaining code will be executed, before we get the object from the server (it wouldn't work)
    restStore.get("").then(function(items)
    {
        // set up a local store to get the tree data, plus define the method
        // to query the children of a node
        var MemoryStore = new Memory
        ({
            data: items,
            getChildren: function(object)
            {
                return this.query({parent: object.id});
            }
        });

我不知道你是否必须从另一台服务器上获取json文件，但也许它也能起到类似的作用

您好

---

Alex

谢谢Alex，问题是孩子们不在以下级别（在

description.compents

中）。所以我使用

onComplete（item.dataDescription.components）解决了这个问题：）谢谢Alex，问题是孩子们不在以下级别（在
description.compents
中）。所以我使用
onComplete（item.dataDescription.components）解决了这个问题：）