 
Текст в окне ошибки гласит:
- Код: Выделить всё
- See the end of this message for details on invoking
 just-in-time (JIT) debugging instead of this dialog box.
 
 ************** Exception Text **************
 System.NullReferenceException: Object reference not set to an instance of an object.
 at ArchestrA.HistClient.UI.aaTrendItemEditor.get_Items()
 at ArchestrA.HistClient.UI.aaTrendItemEditor.lvTrendItems_ItemCheck(Object sender, ItemCheckEventArgs e)
 at System.Windows.Forms.ListView.OnItemCheck(ItemCheckEventArgs ice)
 at System.Windows.Forms.ListView.WmReflectNotify(Message& m)
 at System.Windows.Forms.ListView.WndProc(Message& m)
 at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
 at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
 at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
 
 
 ************** Loaded Assemblies **************
 mscorlib
 Assembly Version: 2.0.0.0
 Win32 Version: 2.0.50727.3615 (GDR.050727-3600)
 CodeBase: file:///c:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll
 ----------------------------------------
 DictionaryLibrary
 Assembly Version: 1.0.0.0
 Win32 Version: 53.0058.0.0000
 CodeBase: file:///C:/WINDOWS/assembly/GAC/DictionaryLibrary/1.0.0.0__23106a86e706d0ae/DictionaryLibrary.dll
 ----------------------------------------
 IDictionary2LibInterop
 Assembly Version: 1.0.0.0
 Win32 Version: 1.0.0.0
 CodeBase: file:///C:/WINDOWS/assembly/GAC/IDictionary2LibInterop/1.0.0.0__fdcbee9982d955e0/IDictionary2LibInterop.dll
 ----------------------------------------
 aaHistClientUI
 Assembly Version: 1.0.0.0
 Win32 Version: 216.0250.0.0000
 CodeBase: file:///C:/Program%20Files/Common%20Files/ArchestrA/aaHistClientUI.dll
 ----------------------------------------
 System.Windows.Forms
 Assembly Version: 2.0.0.0
 Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
 CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
 ----------------------------------------
 System
 Assembly Version: 2.0.0.0
 Win32 Version: 2.0.50727.3614 (GDR.050727-3600)
 CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll
 ----------------------------------------
 System.Drawing
 Assembly Version: 2.0.0.0
 Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
 CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
 ----------------------------------------
 aaHistClientUtil
 Assembly Version: 1.0.0.0
 Win32 Version: 216.0111.0.0000
 CodeBase: file:///C:/Program%20Files/Common%20Files/ArchestrA/aaHistClientUtil.DLL
 ----------------------------------------
 aaHistClientDatabase
 Assembly Version: 1.0.0.0
 Win32 Version: 216.0067.0.0000
 CodeBase: file:///C:/Program%20Files/Common%20Files/ArchestrA/aaHistClientDatabase.DLL
 ----------------------------------------
 Accessibility
 Assembly Version: 2.0.0.0
 Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
 CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/Accessibility/2.0.0.0__b03f5f7f11d50a3a/Accessibility.dll
 ----------------------------------------
 ArchestrA.CommonUI.ThemeColor
 Assembly Version: 1.0.0.0
 Win32 Version: 216.0004.0.0000
 CodeBase: file:///C:/WINDOWS/assembly/GAC/ArchestrA.CommonUI.ThemeColor/1.0.0.0__ab7041597ebcd521/ArchestrA.CommonUI.ThemeColor.dll
 ----------------------------------------
 DundasWinChart
 Assembly Version: 4.5.0.1685
 Win32 Version: 4.5.0.1685
 CodeBase: file:///C:/Program%20Files/Common%20Files/ArchestrA/DundasWinChart.DLL
 ----------------------------------------
 System.Xml
 Assembly Version: 2.0.0.0
 Win32 Version: 2.0.50727.3082 (QFE.050727-3000)
 CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Xml/2.0.0.0__b77a5c561934e089/System.Xml.dll
 ----------------------------------------
 System.Configuration
 Assembly Version: 2.0.0.0
 Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
 CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Configuration/2.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
 ----------------------------------------
 System.Web.Services
 Assembly Version: 2.0.0.0
 Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
 CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Web.Services/2.0.0.0__b03f5f7f11d50a3a/System.Web.Services.dll
 ----------------------------------------
 System.Data
 Assembly Version: 2.0.0.0
 Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
 CodeBase: file:///C:/WINDOWS/assembly/GAC_32/System.Data/2.0.0.0__b77a5c561934e089/System.Data.dll
 ----------------------------------------
 System.Transactions
 Assembly Version: 2.0.0.0
 Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000)
 CodeBase: file:///C:/WINDOWS/assembly/GAC_32/System.Transactions/2.0.0.0__b77a5c561934e089/System.Transactions.dll
 ----------------------------------------
 
 ************** JIT Debugging **************
 To enable just-in-time (JIT) debugging, the .config file for this
 application or computer (machine.config) must have the
 jitDebugging value set in the system.windows.forms section.
 The application must also be compiled with debugging
 enabled.
 
 For example:
 
 <configuration>
 <system>
 </configuration>
 
 When JIT debugging is enabled, any unhandled exception
 will be sent to the JIT debugger registered on the computer
 rather than be handled by this dialog box.
В чем может быть причина такого поведения aaHistClientTrend Control'а?

