System.InvalidOperationException

  Message="Internal .Net Framework Data Provider error 30."

  Source="System.Data"

  StackTrace:

       at System.Data.ProviderBase.DbBuffer.Validate(Int32 offset, Int32 count)

       at System.Data.ProviderBase.DbBuffer.PtrToStringUni(Int32 offset, Int32 length)

       at System.Data.Odbc.OdbcDataReader.internalGetString(Int32 i)

       at System.Data.Odbc.OdbcDataReader.GetString(Int32 i)

       at MonetDBTest.Form1.button1_Click(_object_ sender, EventArgs e) in E:\D_Bak\~MyWorks\MonetDB\MonetDBTest\Form1.cs:line 41

       at System.Windows.Forms.Control.OnClick(EventArgs e)

       at System.Windows.Forms.Button.OnClick(EventArgs e)

       at System.Windows.Forms.Button.PerformClick()

       at System.Windows.Forms.Form.ProcessDialogKey(Keys keyData)

       at System.Windows.Forms.Control.ProcessDialogKey(Keys keyData)

       at System.Windows.Forms.Control.PreProcessMessage(Message& msg)

       at System.Windows.Forms.Control.PreProcessControlMessageInternal(Control target, Message& msg)

       at System.Windows.Forms.Application.ThreadContext.PreTranslateMessage(MSG& msg)

       at System.Windows.Forms.Application.ThreadContext.System.Windows.Forms.UnsafeNativeMethods.IMsoComponent.FPreTranslateMessage(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 MonetDBTest.Program.Main() in E:\D_Bak\~MyWorks\MonetDB\MonetDBTest\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()

  InnerException: