修改已保存的图例数据PropertyValue为字符串

src/app/working-area/working-area.component.ts

@@ -1274,6 +1274,7 @@ export class WorkingAreaComponent extends EventEmitter implements OnInit, AfterV
       this.emit('createIcon', axLegend);
     } else {
       const axLegend = new AxLegend(data, this, shapeMap);
+      axLegend.assetData.PropertyInfos[0].PropertyValue = String(axLegend.assetData.PropertyInfos[0].PropertyValue);
     }
   }
   // /**