Putting 2 checks on the same line when Object might be Nothing

[Steve Amey]

Hi all

At the moment I am using the following code to check to see if the
oTempDataSet is not nothing and that it has tables in it:

If Not oTempDataSet Is Nothing Then
If oTempDataSet.Tables.Count > 0 Then
End If
End If

Is it possible using new language features in .NET to put both the checks on
the same line? In older versions of VB it would not be possible because if
oTempDataSet is Nothing then checking the Tables.Count property would result
in an error. I'm not sure, but I think I read something a while ago on
short-circuiting in C++ where if the first condition was false then the
second condition was not checked, even though the code is on the same line.

Thanks for any help.

Kind Regards,
Steve.

[Robby]

Take a look at the AndAlso operator.

Robby

"Steve Amey" <stevea@centurion-ms_RemoveThis_.co.uk> wrote in message
news:OE**************@TK2MSFTNGP15.phx.gbl...

Hi all

At the moment I am using the following code to check to see if the
oTempDataSet is not nothing and that it has tables in it:

If Not oTempDataSet Is Nothing Then
If oTempDataSet.Tables.Count > 0 Then
End If
End If

Is it possible using new language features in .NET to put both the checks
on
the same line? In older versions of VB it would not be possible because if
oTempDataSet is Nothing then checking the Tables.Count property would
result
in an error. I'm not sure, but I think I read something a while ago on
short-circuiting in C++ where if the first condition was false then the
second condition was not checked, even though the code is on the same
line.

Thanks for any help.

Kind Regards,
Steve.

[Steve Amey]

Hi Robby

Lovely stuff.

Just did a quick search on Short-Circuiting and guess what came up....! I
really need to put more faith in my memory, or at least do a scan of the
help files first. Thanks for your response.

Steve.

"Robby" <ed****@not.my.email.com> wrote in message
news:Oe**************@TK2MSFTNGP11.phx.gbl...

Take a look at the AndAlso operator.

Robby

"Steve Amey" <stevea@centurion-ms_RemoveThis_.co.uk> wrote in message
news:OE**************@TK2MSFTNGP15.phx.gbl...

Hi all

At the moment I am using the following code to check to see if the
oTempDataSet is not nothing and that it has tables in it:

If Not oTempDataSet Is Nothing Then
If oTempDataSet.Tables.Count > 0 Then
End If
End If

Is it possible using new language features in .NET to put both the checks on
the same line? In older versions of VB it would not be possible because if oTempDataSet is Nothing then checking the Tables.Count property would
result
in an error. I'm not sure, but I think I read something a while ago on
short-circuiting in C++ where if the first condition was false then the
second condition was not checked, even though the code is on the same
line.

Thanks for any help.

Kind Regards,
Steve.