JavaScript ArcGIS FeatureLayer.relationships用法及代碼示例

基本信息

以下是所在類或對象的基本信息。

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

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

類： esri/layers/FeatureLayer

繼承: FeatureLayer > Layer > Accessor

自從：用於 JavaScript 4.0 的 ArcGIS API

用法說明

FeatureLayer.relationships函數(或屬性)的定義如下：

relationships Relationship[] readonly

自從：ArcGIS 適用於 JavaScript 4.9 的 API

為圖層設置的relationships 數組。數組中的每個對象用另一個層或表說明層的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)
  });
});

相關用法

注：本文由純淨天空篩選整理自arcgis.com大神的英文原創作品 FeatureLayer.relationships。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。