Visual Studio Debug Visualizer not working for Datatable (Unhandled exception has occurred in a component in your application)

Question

Unhandled exception has occurred in a component in your application.

When I click the the magnifier button in debug model, the debug visualizer doesn't work only for datatable, while working for other types like string.

I have searched old posts and cannot find a useful answer. This is the detail of exception:

See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text ************** System.Exception: Function evaluation timed out. at Microsoft.VisualStudio.DebuggerVisualizers.DebugViewerShim.PrivateCallback.MaybeDeserializeAndThrowException(Byte[] data) at Microsoft.VisualStudio.DebuggerVisualizers.DebugViewerShim.ManagedShim.DelegatedHost.CreateViewer(IntPtr hwnd, HostServicesHelper hsh, SafeProxyWrapper proxy)

************** Loaded Assemblies ************** mscorlib Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.18444 built by: FX451RTMGDR CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll ---------------------------------------- Microsoft.VisualStudio.Platform.AppDomainManager Assembly Version: 10.0.0.0 Win32 Version: 10.0.30319.1 CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Microsoft.VisualStudio.Platform.AppDomainManager/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualStudio.Platform.AppDomainManager.dll ---------------------------------------- System Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.34238 built by: FX452RTMGDR CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll ---------------------------------------- System.Configuration Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.18408 built by: FX451RTMGREL CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System. Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll ---------------------------------------- System.Xml Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.34234 built by: FX452RTMGDR CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll ---------------------------------------- System.Windows.Forms Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.34251 built by: FX452RTMGDR CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll ---------------------------------------- System.Drawing Assembly Version: 4.0.0.0 Win32 Version: 4.0.30319.34270 built by: FX452RTMGDR CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll ---------------------------------------- Microsoft.VisualStudio.DebuggerVisualizers Assembly Version: 10.0.0.0 Win32 Version: 10.0.30319.1

CodeBase: file:///C:/Windows/assembly/GAC_MSIL/Microsoft.VisualStudio.DebuggerVisualizers/10.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualStudio.DebuggerVisualizers.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:

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.

Answer 1

尝试执行devenv.exe并以管理员身份运行，这可以轻松解决您的问题。