I have JSON same {id: 1 , name:A , Chidlren:[{id:2, parentID: 1, name: C}]}
, how to load in combobox same tree using Sencha Architect.
If I understand you correctly you want a treepanel inside a combobox?
If so, you can use this ux: http://docs.sencha.com/extjs/4.2.2/#!/api/Ext.ux.TreePicker
In SA you have to