สอบถามการใช้ While ทําข้อมูล Json ตามรูปแบบนี้ครับ

[
	{"title": "simple node (no explicit id, so a default key is generated)" },
	{"key": "2", "title": "item1 with key and tooltip", "tooltip": "Look, a tool tip!" },
	{"key": "3", "title": "<span>item2 with <b>html</b> inside a span tag</span>" },
	{"key": "4", "title": "node 4" },
	{"key": "5", "title": "using href", "href": "http://www.wwWendt.de/" },
	{"key": "6", "title": "node with some extra classes (will be added to the generated markup)", "extraClasses": "my-extra-class" },
	{"key": "10", "title": "Folder 1", "folder": true, "children": [
		{"key": "10_1", "title": "Sub-item 1.1", "children": [
			{"key": "10_1_1", "title": "Sub-item 1.1.1"},
			{"key": "10_1_2", "title": "Sub-item 1.1.2"}
		]},
		{"key": "10_2", "title": "Sub-item 1.2", "children": [
			{"key": "10_2_1", "title": "Sub-item 1.2.1"},
			{"key": "10_2_2", "title": "Sub-item 1.2.2"}
		]}
	]},
	{"key": "20", "title": "Simple node with active children (expand)", "expanded": true, "children": [
		{"key": "20_1", "title": "Sub-item 2.1", "children": [
			{"key": "20_1_1", "title": "Sub-item 2.1.1", "children": [
				{"key": "20_1_1_1", "title": "Sub-item 2.1.1.1"}
			]},
			{"key": "20_1_2", "title": "Sub-item 2.1.2"}
		]},
		{"key": "20_2", "title": "Sub-item 2.2", "children": [
			{"key": "20_2_1", "title": "Sub-item 2.2.1"},
			{"key": "20_2_2", "title": "Sub-item 2.2.2"}
		]}
	]},