VB.net 2010 尝试读取或写入受保护的内存。这通常指示其他内存已损坏。

Question

请教各位一下，我用vb.net2010开发一套软件，一个主窗体和3个其它窗体 A B C。 当我在主窗体上面点击按钮打开窗体A B都没有问题，打开C的时候就弹出如下错误提示！当我关掉VS 2010开发环境的时候，直接运行EXE文件就正常，请教各位这是什么原因和如何解决呢？万分感谢！非常苦恼的是不知道到底是那句代码处理问题。

未处理 System.AccessViolationException
  Message=尝试读取或写入受保护的内存。这通常指示其他内存已损坏。
  Source=System.Drawing
  StackTrace:
       在 System.Drawing.SafeNativeMethods.Gdip.GdipDrawRectangleI(HandleRef graphics, HandleRef pen, Int32 x, Int32 y, Int32 width, Int32 height)
       在 System.Drawing.Graphics.DrawRectangle(Pen pen, Int32 x, Int32 y, Int32 width, Int32 height)
       在 System.Drawing.Graphics.DrawRectangle(Pen pen, Rectangle rect)
       在 System.Windows.Forms.UpDownBase.OnPaint(PaintEventArgs e)
       在 System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer)
       在 System.Windows.Forms.Control.WmPaint(Message& m)
       在 System.Windows.Forms.Control.WndProc(Message& m)
       在 System.Windows.Forms.ScrollableControl.WndProc(Message& m)
       在 System.Windows.Forms.UpDownBase.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.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
       在 System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
       在 System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
       在 System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       在 System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       在 Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()
       在 Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()
       在 Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine)
       在 VCMLensSuoFuJi.My.MyApplication.Main(String[] Args) 位置 17d14f5c-a337-4978-8281-53493378c1071.vb:行号 81
       在 System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       在 System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       在 Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       在 System.Threading.ThreadHelper.ThreadStart_Context(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.Threading.ThreadHelper.ThreadStart()
  InnerException: 

---

Trevan

Answer 1

F5调试模式也无法看出那句话出问题吗？

---

If you think one reply solves your problem, please mark it as An Answer, if you think someone's reply helps you, please mark it as a Proposed Answer

Help by clicking：
Click here to donate your rice to the poor
Click to Donate
Click to feed Dogs & Cats

Found any spamming-senders? Please report at: Spam Report

Answer 2

是的，看不出来。

---

Trevan

Answer 3

y有没有兄台帮忙指导一下呢，谢谢！

---

Trevan

Answer 4

未处理 System.AccessViolationException
  Message=尝试读取或写入受保护的内存。这通常指示其他内存已损坏。
  Source=System.Drawing
  StackTrace:
       在 System.Drawing.SafeNativeMethods.Gdip.GdipDrawRectangleI(HandleRef graphics, HandleRef pen, Int32 x, Int32 y, Int32 width, Int32 height)

你好，從你所貼的錯誤信息，應該是 CLR 嘗試用 System.Drawing時，準備讀取或寫入時出錯。這可能是RAM 或 顯咭出問題。

但你也說了直接執行 exe 卻沒事。那可能是 Debugger 有 setting 不對，你可試試

Tools menu ->Options -> Debugging -> General -> Uncheck this option "Suppress JIT optimization on module load"

你也可以參考一下下面的link，也可能有關和有助

http://social.msdn.microsoft.com/Forums/en-US/csharpgeneral/thread/6adca20b-649f-41a4-8fa1-09534882d76c

---

大家一齊探討、學習和研究，謝謝！
MCSD, MCAD, MCSE+I, MCDBA, MCDST, MCSA, MCTS, MCITP, MCPD,
MCT, Microsoft Community Star(TW & HK),
Microsoft MVP for VB.NET since 2003
My MSMVP Blog