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Jason
NA
6
0
"System.InvalidOperationException was unhandled" Any Idea?
Jan 7 2007 10:15 PM
Below is the very simple code I made that I just cannot get to compile... I only have 3 controls, a button, and 2 text boxes... could anyone please help me make sense of this? Much thanks!
*** Code ***
Public
Class
Form1
Dim
h
As
Integer
Dim
l
As
Integer
Dim
c
As
Integer
= 0
Dim
q
As
Integer
'Dim n(c) As Integer
Dim
nn
As
String
Private
Sub
start_Click(
ByVal
sender
As
System.Object,
ByVal
e
As
System.EventArgs)
Handles
start.Click
l = low.Text
h = high.Text
While
l <= h
q = 3
If
(l
Mod
2 = 0)
Then
GoTo
endloop
Else
Continue
While
End
If
While
q < l
If
(l
Mod
q = 0)
Then
'n(c) = x
nn = nn +
", "
+ l
'c += c
MsgBox(l)
Exit
While
Else
q = q + 2
End
If
End
While
endloop:
l += l
End
While
End
Sub
End
Class
*** Error Output ***
System.InvalidOperationException was unhandled
Message="An error occurred creating the form. See Exception.InnerException for details. The error is: Object reference not set to an instance of an object."
Source="Primes"
StackTrace:
at Primes.My.MyProject.MyForms.Create__Instance__[T](T Instance) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 190
at Primes.My.MyProject.MyForms.get_Form1()
at Primes.My.MyApplication.OnCreateMainForm() in C:\Documents and Settings\Owner.localhost\My Documents\Visual Studio 2005\Projects\Primes\Primes\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 Primes.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()
Reply
Answers (
0
)
O/R mapper LLBLGen Pro or do you know better alternative in .NET?
loadlibrary and getprocaddress functions