在對象上找不到屬性文本

Question

我對Xcode和Parse有點新，並且正在Out集合中創建一個查詢。除了我得到一個錯誤，指出「財產‘文’不是類型‘ID’的對象中找到」一切都看起來不錯......這是我的代碼，我有：

[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) { 
    if (!error) { 
     // The find succeeded. 
     NSLog(@"Successfully retrieved %d scores.", objects.count); 
     // Do something with the found objects 
     int i = 0; 
     for (PFObject *object in objects) { 
      if (i >= [self.EventTitles count]) break;//to make sure we only write up to the max number of UILabels available in EventTitles 
      (UILabel *) self.EventTitles[i].text = object.objectId;//I assume the "objectId" property of object is an NSString! 
      i++; 
     } 
    } else { 
     // Log details of the failure 
     NSLog(@"Error: %@ %@", error, [error userInfo]); 
    } 
}]; 

誰能幫助我，所以我可以讓這個構建不會失敗？

Answer 1

更改此：

(UILabel *) self.EventTitles[i].text = object.objectId; 

到：

[(UILabel *)self.EventTitles[i] setText:object.objectId];