JavaScript ArcGIS FeatureLayer.relationships用法及代码示例

基本信息

以下是所在类或对象的基本信息。

AMD: require(["esri/layers/FeatureLayer"], (FeatureLayer) => { /* code goes here */ });

ESM: import FeatureLayer from "@arcgis/core/layers/FeatureLayer";

类： esri/layers/FeatureLayer

继承: FeatureLayer > Layer > Accessor

自从：用于 JavaScript 4.0 的 ArcGIS API

用法说明

FeatureLayer.relationships函数(或属性)的定义如下：

relationships Relationship[] readonly

自从：ArcGIS 适用于 JavaScript 4.9 的 API

为图层设置的relationships 数组。数组中的每个对象用另一个层或表说明层的relationship。

例子：

// print out layer's relationship length and each relationship info to console
featureLayer.when(function () {
  console.log("layer relationships", featureLayer.relationships.length);

  featureLayer.relationships.forEach(function (relationship) {
    console.log("relationship id:", relationship.id)
    console.log("relationship cardinality:", relationship.cardinality)
    console.log("relationship key field:", relationship.keyField)
    console.log("relationship name:", relationship.name)
    console.log("relationship relatedTableId:", relationship.relatedTableId)
  });
});

相关用法

注：本文由纯净天空筛选整理自arcgis.com大神的英文原创作品 FeatureLayer.relationships。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。