Error Calling Function

[Jay1b]

At the moment i am just playing around with functions and i keep getting this annoying error message with the code below

 

 

'An unhandled exception of type 'System.NullReferenceException' occurred in Procedures and Functions - Hr 10.exe

 

Additional information: Object reference not set to an instance of an object.'

 

  Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
     Dim c As Class1
     Dim i As Integer

     i = c.ComputeLength("hELLO")
     MsgBox(i)

  End Sub

 

Public Class Class1

  Public Function ComputeLength(ByVal strText As String) As Integer
     Return strText.Length
  End Function


End Class 

 

Can someone please point me in the right direction?

[aewarnick]

The error means that an object is not created yet. You have declared here

Dim c As Class1

but you did not initialize it. You did not create it. You made it ready to be created.

c=new Class1(); - c# code, but vb is very similar.

[mutant]

Dim c As New Class1

In case like this you should consider making your function shared so you dont have to create class instance everytime.

[Jay1b]

Excellent. Thank you once again.