"Martinez" <marti***@szczecinek.net.pl> schreef in bericht
news:1177877720.095417.286730@y80g2000hsf.googlegroups.com...
> Hello
> I try declare
>
> Dim db as New BtDatabase()
> and execute metod
> db.open(par1,par2,par3)
>
> but i get error :
>
> System.NullReferenceException was unhandled
>  Message="Object reference not set to an instance of an object."
>  Source="Microsoft.VisualBasic"
>  StackTrace:
>       at
> Microsoft.VisualBasic.CompilerServices.LateBinding.InternalLateCall(Object
> o, Type objType, String name, Object[] args, String[] paramnames,
> Boolean[] CopyBack, Boolean IgnoreReturn)
>       at
> Microsoft.VisualBasic.CompilerServices.NewLateBinding.LateCall(Object
> Instance, Type Type, String MemberName, Object[] Arguments, String[]
> ArgumentNames, Type[] TypeArguments, Boolean[] CopyBack, Boolean
> IgnoreReturn)
>       at ForteWB.WczytywanieWyciagu.WczytywanieWyciagu_Load(Object
> sender, EventArgs e) in C:\Documents and Settings\Marcin\Moje dokumenty
> \Visual Studio 2005\Projects\ForteWB\ForteWB
> \WczytywanieWyciagu.vb:line 210
>       at System.EventHandler.Invoke(Object sender, EventArgs e)
>       at System.Windows.Forms.Form.OnLoad(EventArgs e)
>       at System.Windows.Forms.Form.OnCreateControl()
>       at System.Windows.Forms.Control.CreateControl(Boolean
> fIgnoreVisible)
>       at System.Windows.Forms.Control.CreateControl()
>       at System.Windows.Forms.Control.WmShowWindow(Message& m)
>       at System.Windows.Forms.Control.WndProc(Message& m)
>       at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
>       at System.Windows.Forms.ContainerControl.WndProc(Message& m)
>       at System.Windows.Forms.Form.WmShowWindow(Message& m)
>       at System.Windows.Forms.Form.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.SendMessage(HandleRef hWnd,
> Int32 msg, Int32 wParam, Int32 lParam)
>       at System.Windows.Forms.Form.SetVisibleCore(Boolean value)
>       at System.Windows.Forms.Control.set_Visible(Boolean value)
>       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(ApplicationContext
> context)
>       at
> Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()
>       at
> Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()
>       at
> Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[]
> commandLine)
>       at ForteWB.My.MyApplication.Main(String[] Args) in 17d14f5c-
> a337-4978-8281-53493378c1071.vb:line 81
>       at System.AppDomain.nExecuteAssembly(Assembly assembly,
> String[] args)
>       at System.Runtime.Hosting.ManifestRunner.Run(Boolean
> checkAptModel)
>       at System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly()
>       at
> System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext
> activationContext, String[] activationCustomData)
>       at
> System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext
> activationContext)
>       at
> Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone()
>       at System.Threading.ThreadHelper.ThreadStart_Context(Object
> state)
>       at System.Threading.ExecutionContext.Run(ExecutionContext
> executionContext, ContextCallback callback, Object state)
>       at System.Threading.ThreadHelper.ThreadStart()
>
>
> Why i can't execute metod open on object db??
>
> Marcin
>

On 30 Kwi, 06:12, "Cor Ligthert [MVP]" <notmyfirstn***@planet.nl>
wrote:
> Hi Marcin,
>
> Probably in par1, par2, par3 has an object to be instanced what is not done.
>
> However for not AdoNet databases the newsgroup
>
> micorosoft.public.ado.data is probably much better,
>
> Cor
>
> "Martinez" <marti***@szczecinek.net.pl> schreef in berichtnews:1177877720..095417.286***@y80g2000hsf.googlegroups.com...
>
>
>
> > Hello
> > I try declare
>
> > Dim db as New BtDatabase()
> > and execute metod
> > db.open(par1,par2,par3)
>
> > but i get error :
>
> > System.NullReferenceException was unhandled
> >  Message="Object reference not set to an instance of an object."
> >  Source="Microsoft.VisualBasic"
> >  StackTrace:
> >       at
> > Microsoft.VisualBasic.CompilerServices.LateBinding.InternalLateCall(Object
> > o, Type objType, String name, Object[] args, String[] paramnames,
> > Boolean[] CopyBack, Boolean IgnoreReturn)
> >       at
> > Microsoft.VisualBasic.CompilerServices.NewLateBinding.LateCall(Object
> > Instance, Type Type, String MemberName, Object[] Arguments, String[]
> > ArgumentNames, Type[] TypeArguments, Boolean[] CopyBack, Boolean
> > IgnoreReturn)
> >       at ForteWB.WczytywanieWyciagu.WczytywanieWyciagu_Load(Object
> > sender, EventArgs e) in C:\Documents and Settings\Marcin\Moje dokumenty
> > \Visual Studio 2005\Projects\ForteWB\ForteWB
> > \WczytywanieWyciagu.vb:line 210
> >       at System.EventHandler.Invoke(Object sender, EventArgs e)
> >       at System.Windows.Forms.Form.OnLoad(EventArgs e)
> >       at System.Windows.Forms.Form.OnCreateControl()
> >       at System.Windows.Forms.Control.CreateControl(Boolean
> > fIgnoreVisible)
> >       at System.Windows.Forms.Control.CreateControl()
> >       at System.Windows.Forms.Control.WmShowWindow(Message& m)
> >       at System.Windows.Forms.Control.WndProc(Message& m)
> >       at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
> >       at System.Windows.Forms.ContainerControl.WndProc(Message& m)
> >       at System.Windows.Forms.Form.WmShowWindow(Message& m)
> >       at System.Windows.Forms.Form.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.SendMessage(HandleRef hWnd,
> > Int32 msg, Int32 wParam, Int32 lParam)
> >       at System.Windows.Forms.Form.SetVisibleCore(Boolean value)
> >       at System.Windows.Forms.Control.set_Visible(Boolean value)
> >       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(ApplicationContext
> > context)
> >       at
> > Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun­()
> >       at
> > Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApp­licationModel()
> >       at
> > Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(S­tring[]
> > commandLine)
> >       at ForteWB.My.MyApplication.Main(String[] Args) in 17d14f5c-
> > a337-4978-8281-53493378c1071.vb:line 81
> >       at System.AppDomain.nExecuteAssembly(Assembly assembly,
> > String[] args)
> >       at System.Runtime.Hosting.ManifestRunner.Run(Boolean
> > checkAptModel)
> >       at System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly()
> >       at
> > System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContex­t
> > activationContext, String[] activationCustomData)
> >       at
> > System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContex­t
> > activationContext)
> >       at
> > Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone(­)
> >       at System.Threading.ThreadHelper.ThreadStart_Context(Object
> > state)
> >       at System.Threading.ExecutionContext.Run(ExecutionContext
> > executionContext, ContextCallback callback, Object state)
> >       at System.Threading.ThreadHelper.ThreadStart()
>
> > Why i can't execute metod open on object db??
>
> > Marcin- Ukryj cytowany tekst -
>
> - Poka¿ cytowany tekst -

"Martinez" <marti***@szczecinek.net.pl> schreef in bericht
news:1177908194.722025.313150@y80g2000hsf.googlegroups.com...
On 30 Kwi, 06:12, "Cor Ligthert [MVP]" <notmyfirstn***@planet.nl>
wrote:
> Hi Marcin,
>
> Probably in par1, par2, par3 has an object to be instanced what is not
> done.
>
> However for not AdoNet databases the newsgroup
>
> micorosoft.public.ado.data is probably much better,
>
> Cor
>
> "Martinez" <marti***@szczecinek.net.pl> schreef in
> berichtnews:1177877720.095417.286***@y80g2000hsf.googlegroups.com...
>
>
>
> > Hello
> > I try declare
>
> > Dim db as New BtDatabase()
> > and execute metod
> > db.open(par1,par2,par3)
>
> > but i get error :
>
> > System.NullReferenceException was unhandled
> >  Message="Object reference not set to an instance of an object."
> >  Source="Microsoft.VisualBasic"
> >  StackTrace:
> >       at
> > Microsoft.VisualBasic.CompilerServices.LateBinding.InternalLateCall(Object
> > o, Type objType, String name, Object[] args, String[] paramnames,
> > Boolean[] CopyBack, Boolean IgnoreReturn)
> >       at
> > Microsoft.VisualBasic.CompilerServices.NewLateBinding.LateCall(Object
> > Instance, Type Type, String MemberName, Object[] Arguments, String[]
> > ArgumentNames, Type[] TypeArguments, Boolean[] CopyBack, Boolean
> > IgnoreReturn)
> >       at ForteWB.WczytywanieWyciagu.WczytywanieWyciagu_Load(Object
> > sender, EventArgs e) in C:\Documents and Settings\Marcin\Moje dokumenty
> > \Visual Studio 2005\Projects\ForteWB\ForteWB
> > \WczytywanieWyciagu.vb:line 210
> >       at System.EventHandler.Invoke(Object sender, EventArgs e)
> >       at System.Windows.Forms.Form.OnLoad(EventArgs e)
> >       at System.Windows.Forms.Form.OnCreateControl()
> >       at System.Windows.Forms.Control.CreateControl(Boolean
> > fIgnoreVisible)
> >       at System.Windows.Forms.Control.CreateControl()
> >       at System.Windows.Forms.Control.WmShowWindow(Message& m)
> >       at System.Windows.Forms.Control.WndProc(Message& m)
> >       at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
> >       at System.Windows.Forms.ContainerControl.WndProc(Message& m)
> >       at System.Windows.Forms.Form.WmShowWindow(Message& m)
> >       at System.Windows.Forms.Form.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.SendMessage(HandleRef hWnd,
> > Int32 msg, Int32 wParam, Int32 lParam)
> >       at System.Windows.Forms.Form.SetVisibleCore(Boolean value)
> >       at System.Windows.Forms.Control.set_Visible(Boolean value)
> >       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(ApplicationContext
> > context)
> >       at
> > Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun­()
> >       at
> > Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApp­licationModel()
> >       at
> > Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(S­tring[]
> > commandLine)
> >       at ForteWB.My.MyApplication.Main(String[] Args) in 17d14f5c-
> > a337-4978-8281-53493378c1071.vb:line 81
> >       at System.AppDomain.nExecuteAssembly(Assembly assembly,
> > String[] args)
> >       at System.Runtime.Hosting.ManifestRunner.Run(Boolean
> > checkAptModel)
> >       at System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly()
> >       at
> > System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContex­t
> > activationContext, String[] activationCustomData)
> >       at
> > System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContex­t
> > activationContext)
> >       at
> > Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone(­)
> >       at System.Threading.ThreadHelper.ThreadStart_Context(Object
> > state)
> >       at System.Threading.ExecutionContext.Run(ExecutionContext
> > executionContext, ContextCallback callback, Object state)
> >       at System.Threading.ThreadHelper.ThreadStart()
>
> > Why i can't execute metod open on object db??
>
> > Marcin- Ukryj cytowany tekst -
>
> - Poka¿ cytowany tekst -

"Martinez" <marti***@szczecinek.net.pl> schreef in bericht
news:1177927315.182575.293890@q75g2000hsh.googlegroups.com...
> On 30 Kwi, 10:21, "Cor Ligthert [MVP]" <notmyfirstn***@planet.nl>
> wrote:
>> Martinez,
>>
>> I have the idea that the problem as nothing to do with the commands
>>
>> Dim db as New BtDatabase()
>> db.open(par1,par2,par3)
>>
>> Can you outcomment them and run again?
>>
>> Cor
>>
> I don't understand, can you explain me that ??
>
> Marcin
>