linq to object - 找不到方法答案

【问题标题】：linq to object - Method not foundlinq to object - 找不到方法
【发布时间】：2011-05-08 07:58:10
【问题描述】：

我正在尝试使用简单的 LINQ to Objects 查询。

当我尝试运行我的应用程序时，我收到以下消息：

System.InvalidOperationException was unhandled
  Message="An error occurred creating the form. See Exception.InnerException for details.  The error is: Method not found: 'Void sharatTashlumimWS.paymentDetailsManager.set_ReleaseDate(System.DateTime)'."
  Source="WindowsApplication1"
  StackTrace:
       at WindowsApplication1.My.MyProject.MyForms.Create__Instance__[T](T Instance) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 190
       at WindowsApplication1.My.MyProject.MyForms.get_Form1()
       at WindowsApplication1.My.MyApplication.OnCreateMainForm() in C:\MmiSources\Ksafim\APPLICATIONS\TashlumZikuy\Tashlumim\sharatTashlumimWS\WindowsApplication1\My Project\Application.Designer.vb:line 35
       at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()
       at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()
       at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine)
       at WindowsApplication1.My.MyApplication.Main(String[] Args) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 81
       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()
  InnerException: System.MissingMethodException
       Message="Method not found: 'Void sharatTashlumimWS.paymentDetailsManager.set_ReleaseDate(System.DateTime)'."
       Source="WindowsApplication1"
       StackTrace:
            at WindowsApplication1.Form1..ctor()
       InnerException:

如果我把这段代码放在一个 ASP 应用程序中，它运行良好。

我的 linq 语句是：

Dim query = From m In movies Select m

【问题讨论】：

标签： asp.net vb.net linq exception

【解决方案1】：

查看 InnerException

InnerException: System.MissingMethodException
       Message="Method not found: 'Void sharatTashlumimWS.paymentDetailsManager.set_ReleaseDate(System.DateTime)'."
       Source="WindowsApplication1"
       StackTrace:
            at WindowsApplication1.Form1..ctor()
       InnerException:

【讨论】：

+1。你有Option Strict On吗？如果没有，请打开它：然后我怀疑编译器可能会为您识别问题。

【解决方案2】：

根据给出的例外情况，它似乎从来没有到达您的查询 - 设置 Form1 时出现问题，可能是在构建电影表时。

【讨论】：