如何避免Visual Studio调试器可视化程序超时？

Question

I've successfully made several Visual Studio debugger visualizers, and they're working very well, except that on some objects I get a time out error when I try to deserialize the object with objectProvider.GetObject()

System.Exception: Function evaluation timed out.
  at Microsoft.VisualStudio.DebuggerVisualizers.DebugViewerShim.PrivateCallback.MaybeDeserializeAndThrowException(Byte[] data)

The time out happens rather quickly (maybe about a second after I click on the visualizer icon), even though some of my other visualizers work fine even with large data objects that much longer to display (5-10 seconds) and still don't timeout.

I've already made a custom object source to limit the serialization to the fields I need to display. What else can I do to get the data to deserialize without timing out?

Answer 1

HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\9.0\Debugger

我认为这没有记录，但是您可以尝试更改上述注册表项中的某些超时，然后重新启动Visual Studio。

Answer 2

I was recently hit by this in VS2012 and after googling I found this :

As the exception message says, this exception means the debugger visualizer for the datatable is timed out. In VS debugger, each expression evaluation windows(such as watch window, locals window, datatips, autos window etc..) has different default max expression evaluation timed out value. For datatip, we prefer to give a short time out value because otherwise it will provide a poor user expression. If you do want to use the visualizer functionality for that datatable, you may add the expression to a watch and try to visualize it.(Because watch window has a longer timeout value). If you do want to get rid of this timeout in datatip, you may try to increase the timeout value for datatip. The timeout value is a setting in "DataTipTimeout" registry key under: HKEY_CURRENT_USER\\Software\\Microsoft\\VisualStudio\\10.0\\Debugger Note: you should probe WOW64Node for 64bit OS. You can also see other windows' default timeout value under this key.

Answer 3

要使Visual Studio调试器正常工作-在“ WPF可视化工具”中的“本地”窗口（在WPF应用程序中经过测试），您需要在注册表中找到：HKEY_CURRENT_USER \\ Software \\ Microsoft \\ VisualStudio \\ 12.0 \\ Debugger \\ DWORD参数“ LocalsTimeout”和默认值（1000）设置为足够大的值，例如5000。