Question

我试图根据查询返回给定要素的几何。它适用于某些功能，但对于其余功能，它返回null。任何人都知道我的代码可能有什么问题？我提前感谢您的回答......

    var advQueryTask = new QueryTask(finQuerURL);
    advQueryTask.disableClientCaching = true;
    var advQuery = new Query();
    if (typeof curMapLyr.layerDefinitions[curLayerID] === 'undefined') {
     advQuery.where = whrCls;
            } 
    else {
           advQuery.where = curMapLyr.layerDefinitions[curLayerID] + ' and (' + whrCls + ')';
            }
    console.log(advQuery);
    advQuery.outFields = retCols;
    advQuery.geometry= map.extent;
    advQuery.returnGeometry = true;
    advQueryTask.useAMF = false;
    advQuery.outSpatialReference = map.spatialReference;
    //  advQuery.outFields = ["*"]; 
    advQueryTask.execute(advQuery, showAdvQueryRes);
        } 
    else {
            alert('Please select a column to search by.');
        }
    });
}

    function showAdvQueryRes(res) {
     ++selectionCntr;
     var curSelectNum = selectionCntr;
     dynamicIDs['select_' + curSelectNum] = res;
     if (res.features.length > 0) {
        addResults(curSvcID, curLayerID, curSelectNum);
    } 
    else {
        alert('No results were found. Please try again.');
    }
    hideLoading();
}

Answer 1

如果有人遇到同样的问题，我得到了答案。我必须通过功能转到mxd文件并在其中启用形状字段（它们可以通过Arc map打开）！

esri QueryTask不返回结果

1 个答案: