c# wpf 提示 无法激活不可见或已禁止的控件

   详细内容如下，请高手帮忙分析
有关调用实时(JIT)调试而不是此对话框的详细信息，
请参见此消息的结尾。************** 异常文本 **************
System.ArgumentException: 无法激活不可见或已禁用的控件
   在 System.Windows.Forms.ContainerControl.SetActiveControlInternal(Control value)
   在 System.Windows.Forms.ContainerControl.SetActiveControl(Control ctl)
   在 System.Windows.Forms.ContainerControl.set_ActiveControl(Control value)
   在 System.Windows.Forms.Integration.WindowsFormsHost.RestoreFocusedChild()
   在 System.Windows.Forms.Control.InvokeMarshaledCallbackDo(ThreadMethodEntry tme)
   在 System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(Object obj)
   在 System.Threading.ExecutionContext.runTryCode(Object userData)
   在 System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
   在 System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
   在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
   在 System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   在 System.Windows.Forms.Control.InvokeMarshaledCallback(ThreadMethodEntry tme)
   在 System.Windows.Forms.Control.InvokeMarshaledCallbacks()
************** 已加载的程序集 **************
mscorlib
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.239 (RTMGDR.030319-2300)
    基本代码: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
WPFllq
    程序集版本: 1.0.0.0
    Win32 版本: 1.0.0.0
    基本代码: file:///D:/WPFllq/WPFllq/bin/Debug/WPFllq.exe
----------------------------------------
PresentationFramework
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.1
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/PresentationFramework/v4.0_4.0.0.0__31bf3856ad364e35/PresentationFramework.dll
----------------------------------------
WindowsBase
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.1 built by: RTMRel
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/WindowsBase/v4.0_4.0.0.0__31bf3856ad364e35/WindowsBase.dll
----------------------------------------
System
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.236 built by: RTMGDR
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
PresentationCore
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.1 built by: RTMRel
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_32/PresentationCore/v4.0_4.0.0.0__31bf3856ad364e35/PresentationCore.dll
----------------------------------------
System.Xaml
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.1 built by: RTMRel
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/System.Xaml/v4.0_4.0.0.0__b77a5c561934e089/System.Xaml.dll
----------------------------------------
System.Windows.Forms
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.235 built by: RTMGDR
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.1 built by: RTMRel
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
WindowsFormsIntegration
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.1 built by: RTMRel
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/WindowsFormsIntegration/v4.0_4.0.0.0__31bf3856ad364e35/WindowsFormsIntegration.dll
----------------------------------------
PresentationFramework.Aero
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.1 built by: RTMRel
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/PresentationFramework.Aero/v4.0_4.0.0.0__31bf3856ad364e35/PresentationFramework.Aero.dll
----------------------------------------
PresentationFramework.resources
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.1
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/PresentationFramework.resources/v4.0_4.0.0.0_zh-Hans_31bf3856ad364e35/PresentationFramework.resources.dll
----------------------------------------
mscorlib.resources
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.235 (RTMGDR.030319-2300)
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/mscorlib.resources/v4.0_4.0.0.0_zh-Hans_b77a5c561934e089/mscorlib.resources.dll
----------------------------------------
System.Xml
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.1 built by: RTMRel
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
System.Configuration
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.1 (RTMRel.030319-0100)
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
PresentationCore.resources
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.1 built by: RTMRel
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/PresentationCore.resources/v4.0_4.0.0.0_zh-Hans_31bf3856ad364e35/PresentationCore.resources.dll
----------------------------------------
UIAutomationProvider
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.1 built by: RTMRel
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/UIAutomationProvider/v4.0_4.0.0.0__31bf3856ad364e35/UIAutomationProvider.dll
----------------------------------------
System.Core
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.1 built by: RTMRel
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Deployment
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.1 (RTMRel.030319-0100)
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/System.Deployment/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Deployment.dll
----------------------------------------
System.Deployment.resources
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.1 (RTMRel.030319-0100)
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/System.Deployment.resources/v4.0_4.0.0.0_zh-Hans_b03f5f7f11d50a3a/System.Deployment.resources.dll
----------------------------------------
Microsoft.mshtml
    程序集版本: 7.0.3300.0
    Win32 版本: 7.0.3300.0
    基本代码: file:///C:/windows/assembly/GAC/Microsoft.mshtml/7.0.3300.0__b03f5f7f11d50a3a/Microsoft.mshtml.dll
----------------------------------------
System.Windows.Forms.resources
    程序集版本: 4.0.0.0
    Win32 版本: 4.0.30319.235 built by: RTMGDR
    基本代码: file:///C:/windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms.resources/v4.0_4.0.0.0_zh-Hans_b77a5c561934e089/System.Windows.Forms.resources.dll
----------------------------------------************** JIT 调试 **************
要启用实时(JIT)调试，
该应用程序或计算机的 .config 文件(machine.config)的 system.windows.forms 节中必须设置
jitDebugging 值。
编译应用程序时还必须启用
调试。例如: <configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>启用 JIT 调试后，任何未经处理的异常
都将被发送到在此计算机上注册的 JIT 调试器，
而不是由此对话框处理。