CODEWITHSUNDEEP
vb.netweb-servicesrest
StealthRT
StealthRT

Reputation: 10542

VB Web Service call error Object reference not set

Hey all I am trying to figure out why I am getting the following error:

Object reference not set to an instance of an object.

on line 2 of code:

1.  Dim HTPCws As HTPCWS.ServiceVB
2.  Dim returned As String = HTPCws.DisplayMessageVB(what2send)

When I know what2send does have a value to send....

The Web Service code is this:

<WebMethod()> Public Function DisplayMessageVB(ByVal beingSent As String) As String
    _strfromws = beingSent
    Return "DONE"
End Function

What could I be forgetting?

Upvotes: 0

Views: 584

Answers (1)

Olivier Jacot-Descombes
Olivier Jacot-Descombes

Reputation: 112352

HTPCws has not been instantiated. Change the code to:

Dim HTPCws = New HTPCWS.ServiceVB()
Dim returned As String = HTPCws.DisplayMessageVB(what2send)

Dim HTPCws As HTPCWS.ServiceVB declares a variable but does not assign it an object. Also the naming is a bit confusing. Better:

Dim service = New HTPCWS.ServiceVB()
Dim returned As String = service.DisplayMessageVB(what2send)

Upvotes: 2

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