Using Comm dll file in vb.net 2003 error

[gv]

Hi all,

using vb.net 2003

Imported a com dll under Reference

Im trying to use one of the classes but keep getting an error:

"Object reference not set to an instance of an object."

Using it like this:

Dim getduration As String
Dim rd As BVEvent
getduration = rd.Duration
MessageBox.Show(getduration)

I tried changing this line to this, but gave same error and underlined rd:

Dim rd As New BVEvent

thanks for any help
GV

 

[Herfried K. Wagner [MVP]]

Imported a com dll under Reference

Im trying to use one of the classes but keep getting an error:

"Object reference not set to an instance of an object."

Using it like this:

Dim getduration As String
Dim rd As BVEvent
getduration = rd.Duration
MessageBox.Show(getduration)

I tried changing this line to this, but gave same error and underlined rd:

Dim rd As New BVEvent

A runtime error or a compile time error? 'Dim rd As New BVEvent' should
work...

 

[gv]

thanks for your help

thats what i thought but,

still underlines the rd with blue squiggly line?

thanks
GV

 

[Crouchie1998]

You need to create a new reference to what you are needing to use:

Dim sClass As SomeClass

sClass.SomethingHere = SomeValue

' Object not set...

-----------------------------

Dim sClass As SomeClass

sClass = New SomeClass

sClass.SomethingHere = SomeValue

-----------------------------

Dim sClass As SomeClass = New SomeClass

sClass.SomethingHere = SomeValue

I think you get the idea

Crouchie1998
BA (HONS) MCP MCSE

 

[Crouchie1998]

You may need to import the reference too

Imports SomeReference

Crouchie1998
BA (HONS) MCP MCSE

 

[Herfried K. Wagner [MVP]]

thats what i thought but,

still underlines the rd with blue squiggly line?

Mhm... Doesn't it underline 'BVEvent'? If the namespace that contains
'BVEvent' is imported ('Imports <namespace>') and you are using 'As New'
your code should compile.