我正在通过 smo 进行恢复过程。成功恢复后,我重新启用我的数据库 currentDb.SetOnline();
问题是数据库实例在那之后不工作。实例连接失败。所以我想你不应该关闭我的应用程序。
Application.Exit();
但是编写上面的代码并不存在我的应用程序而不是我得到了异常。详情是
在此处输入代码
未处理 System.NullReferenceException
Message="Object reference not set to an instance of an object."
Source="VitoProject"
StackTrace:
at VitoProject.backAndRestore.restoreDatabase_Click(Object sender, EventArgs e) in C:\WorkSpace\VitoProject\VitoProject\backAndRestore.cs:line 176
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.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.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at VitoProject.Program.Main() in C:\WorkSpace\VitoProject\VitoProject\Program.cs:line 18
at System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args)
at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()
最佳答案
这可能不是最好的解决方案,但如果您尝试退出您的应用程序并且出现挂起情况,您可能想尝试一下;
Environment.Exit(1);
关于c# - 关闭主线程,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/11860324/