柔性移动接入阵列

Question

我建立一个数组：

var Detail:Array = new Array(getClass.detailArticle(brand, subgroup, name)); 

的方法：

public function detailArticle(brand:String, subgroup:String, name:String):Array 
    { 
     var sqlConnection:SQLConnection; 
     sqlConnection = new SQLConnection(); 
     sqlConnection.open(File.applicationStorageDirectory.resolvePath("assets/db.sqlite")); 
     var stmt:SQLStatement = new SQLStatement(); 
     stmt.sqlConnection = sqlConnection; 
     stmt.text = 
      "SELECT * FROM sen_updatesnew " + 
      "WHERE Brand= '" + brand + "' " + 
      "AND SubGroup= '" + subgroup + "' " + 
      "AND Name = '" + name + "' "; 
     stmt.execute(); 
     var result:Array = stmt.getResult().data; 
     return result;   
    } 

如何访问元素？

细节[“element”]或Detail [0]没有显示任何内容。查询正在顺利进行。

我在做什么错？

Answer 1

从docs

如果响应参数不为null指定Responder对象指定被调用来处理该操作的结果的方法。如果responder参数为null，则在异步执行模式下，如果操作成功，则调度结果事件;如果操作失败，则调度错误事件。

由于execute方法的空响应者参数，您必须在结果事件中监听结果。这听起来像你试图在检索结果之前访问结果。

---

// make your result array an instance variable, not a functional local variable 
protected var result:Array ; 

// make this an instance variable so it can be accessed across methods 
protected var stmt:SQLStatement = new SQLStatement(); 

// this can't return anything because there is nothing to return at the time this method completes it's execution 
public function detailArticle(brand:String, subgroup:String, name:String):void 
{ 
    // some stuff 
    // add the event listener for the result event 
    stmt.addEventListener('result',onResult); 
    // other stuff 
    // no return statement 
} 


// the result handler 
protected function onResult(event:SQLEvent):void{ 
    result = stmt.getResult().data; 
}