無法設置屬性1的未定義 - javascript/google maps api

Question

我試圖建立一個值的數組，我可以用它來添加標記到谷歌地圖，但不斷收到此錯誤。下面的代碼，任何關於我哪裏出錯的建議（對此很新鮮......）非常感謝。

感謝 保羅

 var result2 = sforce.connection.queryAll("select Name,Lat__c,Long__c, Status__c from Site__c where Lat__c != null"); 

    var records = result2.getArray('records'); 
    var store_locations = new Array(); 
    var Approved_store_locations = new Array(); 
    var Rejected_store_locations = new Array(); 
    var a=0,b=0,c=0; 

    for (var j=0; j< records.length; j++) 
     { 
     var record = records[j]; 

     if (record.Status__c == "IB Approved") 
     { 

      Approved_store_locations[a][1] = [[new google.maps.LatLng(record.Lat__c, record.Long__c)],[record.Name]]; 
      alert(Approved_store_locations[a][1]); 
      a++ 
     } else if (record.Status__c == "Site Dead") 
     { 

      Rejected_store_locations[b][1] = [[new google.maps.LatLng(record.Lat__c, record.Long__c)],[record.Name]]; 
      b++ 
     } else 
     { 

      store_locations[c][1] = [[new google.maps.LatLng(record.Lat__c, record.Long__c)],[record.Name]]; 
      c++ 
     } 

     } 

    map = new google.maps.Map(document.getElementById("map"), myOptions); 
    for (i=0; i < store_locations.length; i++) 
    { 
    marker2 = new google.maps.Marker(
    { 
     position: store_locations[i][0], 
     title: store_locations[0][i], 
     map: map 
    }); 
    iconfile = 'http://maps.google.com/mapfiles/ms/icons/yellow-dot.png'; 
    marker2.setIcon(iconfile); 
    } 

    for (i=0; i < Approved_store_locations.length; i++) 
    { 
    marker3 = new google.maps.Marker(
    { 
     position: Approved_store_locations[i][0], 
     title: store_locations[0][i], 
     map: map 
    }); 
    iconfile = 'http://maps.google.com/mapfiles/ms/icons/green-dot.png'; 
    marker3.setIcon(iconfile); 
    } 


    for (i=0; i < Rejected_store_locations.length; i++) 
    { 
    marker = new google.maps.Marker(
    { 
     position: Rejected_store_locations[i][0], 
     title: store_locations[0][i], 
     map: map 
    }); 
    iconfile = 'http://maps.google.com/mapfiles/ms/icons/red-dot.png'; 
    marker3.setIcon(iconfile); 
    } 

Answer 1

目前你只有store_locations=Array();，裏面沒有任何項目。

在嘗試訪問某個項目，你必須創建它，例如：

var store_locations = [[]]; 
    var Approved_store_locations = [[]]; 
    var Rejected_store_locations = [[]]; 
    var a=0,b=0,c=0; 

    for (var j=0; j< records.length; j++) 
     { 
     var record = records[j]; 

     if (record.Status__c == "IB Approved") 
     { 

      Approved_store_locations[a][1] = [[new google.maps.LatLng(record.Lat__c, record.Long__c)],[record.Name]]; 
      alert(Approved_store_locations[a][1]); 
      a++;Approved_store_locations.push([]); 

     } else if (record.Status__c == "Site Dead") 
     { 

      Rejected_store_locations[b][1] = [[new google.maps.LatLng(record.Lat__c, record.Long__c)],[record.Name]]; 
      b++;Rejected_store_locations.push([]) 
     } else 
     { 

      store_locations[c][1] = [[new google.maps.LatLng(record.Lat__c, record.Long__c)],[record.Name]]; 
      c++;store_locations.push([]); 
     } 

     }