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POTreestore empty - is JSON valid?
 

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    <p>My code looks like this but there is there is no data in the store / tree. </p> <p>Is the JSON store-valid? Do I need a <code>root</code> on top of the JSON?</p> <p>What columns must be defined in the Tree panel?</p> <p><strong>JSON:</strong></p> <pre><code>{ "status" : { "status" : 0, "msg" : "Ok", "protocolversion" : "1.1.json" }, "value" : { "name" : "Root", "path" : "\/", "leaf" : false, "children" : [ { "name" : "subfolder1", "path" : "\/subfolder1", "leaf" : false, "children" : [] }, { "name" : "subfolder2", "path" : "\/subfolder2", "leaf" : false, "children" : [] }, { "name" : "report1", "path" : "\/report1", "leaf" : true, "children" : [] } ] } } </code></pre> <p><strong>My ExtJs Code:</strong></p> <p><strong>Model:</strong></p> <pre><code>// Model for store var oModel = Ext.define('TreeModel', { extend: 'Ext.data.Model', fields: [ { name: 'name', type: 'string' }, { name: 'path', type: 'string' } ] }); </code></pre> <p><strong>Store:</strong></p> <pre><code> // Store with local proxy var oStore = Ext.create('Ext.data.TreeStore', { model: oModel, autoLoad: true, proxy: { type : 'ajax', url : './data/response.json' }, reader: { type : 'json', root : 'value' } }); </code></pre> <p><strong>TreePanel:</strong></p> <pre><code> // View with TreePanel var oTreePanel = Ext.create( 'Ext.tree.Panel', { store : oStore, useArrows : true, displayField: 'text', rootVisible : true, multiSelect : true, border : 0, columns : [ { xtype : 'treecolumn', dataIndex: 'name', text : 'Tree', flex : 3 }, { dataIndex: 'path', text : 'Path', flex : 2 } ] } ); </code></pre>
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    1. CONearly all looks good to me, but the root and children property need to be the same, so I'd start by changing `value` in your json response to `children`, and define the root of your reader as `children`. Let me know the result of this.
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    2. COThanks! Changing `value` to `children` in my json solved it! 1. Can you please explain why it has to be `children`? 2. What role does the `root: 'value'` in my `TreeStore` play then? 3. Post an answer and Ill accept it.
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