我正在拼命地尝试从JSON嵌套格式的角树中获取所选节点。到目前为止，我已经成功地获取了this.checklistSelection.selected的平面节点的所选数组。但我需要的是，我需要以JSON格式获取所选节点，其中包含所有嵌套的JSON对象的级别。
[{item: "Risk Analysis", level: 0, expandable: true}
,{item: "Standard", level: 1, expandable: true}
,{item: "Active", level: 2, expandable: true}
,{item: "Volatility", level: 3, expandable: true}
,{item: "Contribution", level: 4, expandable: true}
,{item: "Total", level: 5, expandable: false}
,{item: "Systematic", level: 5, expandable: false}
,{item: "Specific", level: 5, expandable: false}
,{item: "VaR (95%, 2 weeks, Chebyshev)", level: 3, expandable: true}
,{item: "Contribution", level: 4, expandable: true}
,{item: "Total", level: 5, expandable: false}
,{item: "Systematic", level: 5, expandable: false}
,{item: "Specific", level: 5, expandable: false}
,{item: "Benchmark", level: 2, expandable: true}
,{item: "Volatility", level: 3, expandable: true}
,{item: "Contribution", level: 4, expandable: true}
,{item: "Total", level: 5, expandable: false}
,{item: "Systematic", level: 5, expandable: false}
,{item: "Specific", level: 5, expandable: false}
,{item: "VaR (95%, 2 weeks, Chebyshev)", level: 3, expandable: true}
,{item: "Contribution", level: 4, expandable: true}
,{item: "Total", level: 5, expandable: false}
,{item: "Systematic", level: 5, expandable: false}
,{item: "Specific", level: 5, expandable: false}
,{item: "Portfolio", level: 2, expandable: true}
,{item: "Volatility", level: 3, expandable: true}
,{item: "Contribution", level: 4, expandable: true}
,{item: "Total", level: 5, expandable: false}
,{item: "Systematic", level: 5, expandable: false}
,{item: "Specific", level: 5, expandable: false}
,{item: "VaR (95%, 2 weeks, Chebyshev)", level: 3, expandable: true}
,{item: "Contribution", level: 4, expandable: true}
,{item: "Total", level: 5, expandable: false}
,{item: "Systematic", level: 5, expandable: false}
,{item: "Specific", level: 5, expandable: false}]预期值：
"Risk Analysis": {
"Standard": {
"Active": {
"Volatility": {
"Contribution": ["Total", "Systematic", "Specific"]
},
"VaR (95%, 2 weeks, Chebyshev)": {
"Contribution": ["Total", "Systematic", "Specific"]
}
},
"Portfolio": {
"Volatility": {
"Contribution": ["Total", "Systematic", "Specific"]
},
"VaR (95%, 2 weeks, Chebyshev)": {
"Contribution": ["Total", "Systematic", "Specific"]
}
},
"Benchmark": {
"Volatility": {
"Contribution": ["Total", "Systematic", "Specific"]
},
"VaR (95%, 2 weeks, Chebyshev)": {
"Contribution": ["Total", "Systematic", "Specific"]
}
}
}
}
}有人能告诉我是否有Mat树提供的方法，或者任何一种函数可以做到这一点吗？
提前感谢：）
2条答案
按热度按时间bfhwhh0e1#
若要建立树状目录，您必须预先行程数据，为每个项目指派识别码。您可以使用堆栈来追踪指派时的相关性。
您可以分阶段完成此操作：
1.为每个项目指定
id和parentId键（applyRelationships）1.将平面数组转换为树（
listToTree）1.将树转换为对象（
treeToObject）在原始示例中，我通过设置max-depth来强制嵌套每个对象。我没有使用
expandable属性。在这个修改后的示例中，我丢弃了maxDepth参数。第一个
原始响应
第一次
tvokkenx2#
Angular 材质树到JSON对象转换器。