在开启自动预定输入拼音索引时出现错误！

huminjin

错误信息
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System.NullReferenceException: 未将对象引用设置到对象的实例。
   在 ..
(String , Nullable`1 ) 位置 #Q:行号 39
   在 ...
( ) 位置 #R:行号 163
   在 System.Linq.Enumerable.Count[TSource](IEnumerable`1 source, Func`2 predicate)
   在 ..
(String ) 位置 #R:行号 163
   在 .
.
(Object , KeyEventArgs ) 位置 #V:行号 32
   在 System.Windows.Forms.Control.OnKeyUp(KeyEventArgs e)
   在 System.Windows.Forms.Control.ProcessKeyEventArgs(Message& m)
   在 System.Windows.Forms.Control.ProcessKeyMessage(Message& m)
   在 System.Windows.Forms.Control.WndProc(Message& m)
   在 System.Windows.Forms.TextBoxBase.WndProc(Message& m)
   在 System.Windows.Forms.TextBox.WndProc(Message& m)
   在 System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   在 System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   在 System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


环境信息
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操作系统版本：Microsoft Windows NT 5.1.2600 Service Pack 3
程序运行目录：D:\Program Files\12306订票助手.NET


模块信息
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[001]. mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 , c:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\mscorlib.dll
[002]. 12306订票助手, Version=5.6.14261.2353, Culture=neutral, PublicKeyToken=063375134da4cdc3 , D:\Program Files\12306订票助手.NET\12306订票助手.exe
[003]. System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 , C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.dll
[004]. TOBA.Interface, Version=1.0.14251.7, Culture=neutral, PublicKeyToken=063375134da4cdc3 , D:\Program Files\12306订票助手.NET\TOBA.Interface.dll
[005]. System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a , C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll
[006]. System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 , C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c561934e089\System.Windows.Forms.dll
[007]. System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 , C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Core\v4.0_4.0.0.0__b77a5c561934e089\System.Core.dll
[008]. System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a , C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll
[009]. System.Xml, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 , C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Xml\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.dll
[010]. {0659cb77-082e-46a0-80ef-c69ae86e2075}, Version=0.0.0.0, Culture=neutral, PublicKeyToken=3e56350693f7355e ,
[011]. Microsoft.VisualBasic, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a , C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\Microsoft.VisualBasic\v4.0_10.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualBasic.dll
[012]. Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed , D:\Program Files\12306订票助手.NET\Newtonsoft.Json.dll
[013]. System.Numerics, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 , C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Numerics\v4.0_4.0.0.0__b77a5c561934e089\System.Numerics.dll
[014]. System.ComponentModel.DataAnnotations, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 , C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.ComponentModel.DataAnnotations\v4.0_4.0.0.0__31bf3856ad364e35\System.ComponentModel.DataAnnotations.dll
[015]. System.Runtime.Serialization, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 , C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Runtime.Serialization\v4.0_4.0.0.0__b77a5c561934e089\System.Runtime.Serialization.dll
[016]. System.Xml.Linq, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 , C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Xml.Linq\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.Linq.dll
[017]. System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 , C:\WINDOWS\Microsoft.Net\assembly\GAC_32\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll

huminjin

[018]. BetterListViewExpress, Version=3.11.0.0, Culture=neutral, PublicKeyToken=e6c91a3add447be2 , D:\Program Files\12306订票助手.NET\BetterListViewExpress.dll
[019]. DevComponents.DotNetBar2, Version=11.9.0.1, Culture=neutral, PublicKeyToken=c39c3242a43eee2b , D:\Program Files\12306订票助手.NET\DevComponents.DotNetBar2.dll
[020]. Qios.DevSuite.Components, Version=4.0.0.20, Culture=neutral, PublicKeyToken=3cc53827b79c92fa , D:\Program Files\12306订票助手.NET\Qios.DevSuite.Components.dll
[021]. SimpleUpdater, Version=2.3.5374.41437, Culture=neutral, PublicKeyToken=c532149a76b9a64b , D:\Program Files\12306订票助手.NET\SimpleUpdater.dll
[022]. Accessibility, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a , C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\Accessibility\v4.0_4.0.0.0__b03f5f7f11d50a3a\Accessibility.dll
[023]. System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a , C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Design\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Design.dll
[024]. mscorlib.resources, Version=4.0.0.0, Culture=zh-Hans, PublicKeyToken=b77a5c561934e089 , C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\mscorlib.resources\v4.0_4.0.0.0_zh-Hans_b77a5c561934e089\mscorlib.resources.dll
[025]. 2q05rrfz, Version=2.3.5374.41437, Culture=neutral, PublicKeyToken=null ,