我有树面板，它将显示所有节点的完整列表，而不是延迟加载格式。我首先发出一个 ajax 请求来获取一些纯数据，将其格式化为完整列表格式，然后我想将其附加到树中。
我的转换 fn 返回 JSON，如下所示:
{
"text": ".",
"children": [
{
"task": "Project: Shopping",
"duration": 13.25,
"user": "Tommy Maintz",
"iconCls": "task-folder",
"expanded": true,
"children": [
{
"task": "Housewares",
"duration": 1.25,
"user": "Tommy Maintz",
"iconCls": "task-folder",
"children": [
{
"task": "Kitchen supplies",
"duration": 0.25,
"user": "Tommy Maintz",
"leaf": true,
"iconCls": "task"
},
{
"task": "Groceries",
"duration": 0.4,
"user": "Tommy Maintz",
"leaf": true,
"iconCls": "task",
"done": true
},
{
"task": "Cleaning supplies",
"duration": 0.4,
"user": "Tommy Maintz",
"leaf": true,
"iconCls": "task"
},
{
"task": "Office supplies",
"duration": 0.2,
"user": "Tommy Maintz",
"leaf": true,
"iconCls": "task"
}
]
},
{
"task": "Remodeling",
"duration": 12,
"user": "Tommy Maintz",
"iconCls": "task-folder",
"expanded": true,
"children": [
{
"task": "Retile kitchen",
"duration": 6.5,
"user": "Tommy Maintz",
"leaf": true,
"iconCls": "task"
},
{
"task": "Paint bedroom",
"duration": 2.75,
"user": "Tommy Maintz",
"iconCls": "task-folder",
"children": [
{
"task": "Ceiling",
"duration": 1.25,
"user": "Tommy Maintz",
"iconCls": "task",
"leaf": true
},
{
"task": "Walls",
"duration": 1.5,
"user": "Tommy Maintz",
"iconCls": "task",
"leaf": true
}
]
},
{
"task": "Decorate living room",
"duration": 2.75,
"user": "Tommy Maintz",
"leaf": true,
"iconCls": "task",
"done": true
},
{
"task": "Fix lights",
"duration": 2.75,
"user": "Tommy Maintz",
"leaf": true,
"iconCls": "task",
"done": true
},
{
"task": "Reattach screen door",
"duration": 2,
"user": "Tommy Maintz",
"leaf": true,
"iconCls": "task"
}
]
}
]
},
{
"task": "Project: Testing",
"duration": 2,
"user": "Core Team",
"iconCls": "task-folder",
"children": [
{
"task": "Mac OSX",
"duration": 0.75,
"user": "Tommy Maintz",
"iconCls": "task-folder",
"children": [
{
"task": "FireFox",
"duration": 0.25,
"user": "Tommy Maintz",
"iconCls": "task",
"leaf": true
},
{
"task": "Safari",
"duration": 0.25,
"user": "Tommy Maintz",
"iconCls": "task",
"leaf": true
},
{
"task": "Chrome",
"duration": 0.25,
"user": "Tommy Maintz",
"iconCls": "task",
"leaf": true
}
]
},
{
"task": "Windows",
"duration": 3.75,
"user": "Darrell Meyer",
"iconCls": "task-folder",
"children": [
{
"task": "FireFox",
"duration": 0.25,
"user": "Darrell Meyer",
"iconCls": "task",
"leaf": true
},
{
"task": "Safari",
"duration": 0.25,
"user": "Darrell Meyer",
"iconCls": "task",
"leaf": true
},
{
"task": "Chrome",
"duration": 0.25,
"user": "Darrell Meyer",
"iconCls": "task",
"leaf": true
},
{
"task": "Internet Explorer",
"duration": 3,
"user": "Darrell Meyer",
"iconCls": "task",
"leaf": true
}
]
},
{
"task": "Linux",
"duration": 0.5,
"user": "Aaron Conran",
"iconCls": "task-folder",
"children": [
{
"task": "FireFox",
"duration": 0.25,
"user": "Aaron Conran",
"iconCls": "task",
"leaf": true
},
{
"task": "Chrome",
"duration": 0.25,
"user": "Aaron Conran",
"iconCls": "task",
"leaf": true
}
]
}
]
}
]
}
现在我要做的就是获取此 JSON 并将其添加到树存储中。对于常规 Ext.data.Store，我可以简单地使用 store.loadData() 方法，但树存储不存在这样的方法。
我尝试了treeStore.setRootNode()，我将上面的JSON传递给它，它附加了根节点，但不附加它的任何子节点。
谢谢。
最佳答案
方法就在那里。
load( [options] )
Loads the passed node (defaulting to the root node) using the configured proxy.
Be aware that it is not usually valid for a developer to call this method on a TreeStore.
TreeStore loads are triggered by a load request from an existing tree node, when the node is expanding, and it has no locally defined children in its data.
Parameters
options : Object (optional)
config object. This is passed into the Operation object that is created and then sent to the proxy's Ext.data.proxy.Proxy.read function. The options can also contain a node, which indicates which node is to be loaded. If not specified, it will default to the root node.
node : Ext.data.NodeInterface (optional)
The tree node to load. Defaults to the store's root node
Fires
beforeload
Overrides: Ext.data.Store.load
http://docs.sencha.com/extjs/5.1/5.1.1-apidocs/#!/api/Ext.data.TreeStore-method-load
关于javascript - ExtJS -- 将 JSON 数据加载到树面板中，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/32211412/