求高手指点：利用随机数选择WinList中项时总出现运行错误

ARCHANGEL4

刚开始学习UFT自动化测试，练习 订票系统 测试的过程中总出现如下的运行错误，点击“重试”几次有时候就能往下进行了，麻烦高手指点到底是哪里出现了错误，谢谢！
脚本内容如下：

1. Dim itemCount
   
2. 
   
3. 'Book
   
4. Window("Flight Reservation").WinButton("Button").Click
   
5. Window("Flight Reservation").WinObject("Date of Flight:").Type DataTable("OrderDate", dtLocalSheet)
   
6. Window("Flight Reservation").WinComboBox("Fly From:").Select DataTable("FlyFrom",dtLocalSheet)
   
7. Window("Flight Reservation").WinComboBox("Fly To:").Select DataTable("FlyTo",dtLocalSheet)
   
8. Window("Flight Reservation").WinButton("FLIGHT").Click
   
9. 
   
10. If Window("Flight Reservation").Dialog("Flights Table").WinList("From").Exist Then
    
11.         itemCount = Window("Flight Reservation").Dialog("Flights Table").WinList("From").GetROProperty("items count")
    
12.         Window("Flight Reservation").Dialog("Flights Table").WinList("From").Select RandomNumber(0,itemCount)
    
13.         Window("Flight Reservation").Dialog("Flights Table").WinButton("OK").Click
    
14. End If
    
15. 
    
16. Window("Flight Reservation").WinEdit("Name:").Set DataTable("Name",dtLocalSheet)
    
17. Window("Flight Reservation").WinButton("Insert Order").Click
    
18. Window("Flight Reservation").WinButton("Button_2").Click
    
19. 
    
20. 'Check
    
21. Window("Flight Reservation").Dialog("Open Order").WinCheckBox("Customer Name").Set "ON"
    
22. Window("Flight Reservation").Dialog("Open Order").WinEdit("Edit").Set DataTable("Name",dtLocalSheet)
    
23. Window("Flight Reservation").Dialog("Open Order").WinButton("OK").Click
    
24. itemCount = Window("Flight Reservation").Dialog("Open Order").Dialog("Search Results").WinList("Flight No.").GetROProperty("items count")
    
25. Window("Flight Reservation").Dialog("Open Order").Dialog("Search Results").WinList("Flight No.").Select RandomNumber(0,itemCount)
    
26. Window("Flight Reservation").Dialog("Open Order").Dialog("Search Results").WinButton("OK").Click

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出错时状态如下：

赵佳乐SMILE

简化了一下代码是可以的 跟随机数没关系

1. 
   
2. Window("Flight Reservation").Dialog("Open Order").WinCheckBox("Customer Name").Set "ON"
   
3. Window("Flight Reservation").Dialog("Open Order").WinEdit("Edit").Set("kimi")
   
4. Window("Flight Reservation").Dialog("Open Order").WinButton("OK").Click
   
5. itemCount = Window("Flight Reservation").Dialog("Open Order").Dialog("Search Results").WinList("Flight No.").GetROProperty("items count")
   
6. Window("Flight Reservation").Dialog("Open Order").Dialog("Search Results").WinList("Flight No.").Select RandomNumber(0,itemCount)

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赵佳乐SMILE

1.确定一下 WinList("Flight No.") 在对象库中
2.确定一下 Window("Flight Reservation").Dialog("Open Order").WinEdit("Edit").Set DataTable("Name",dtLocalSheet) 能取到客户名
3.确定一下订单是存在的

蓝色忧郁38

我不是高手

ARCHANGEL4

没人气啊.. 自己顶一顶