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

[Rock]

I am getting the above error on If arrFields is nothing or
arrFields.Count=0, I don't understand why I am getting the error:

dim arrFields as new ArrayList
arrFields = CType(ViewState("arrFields"), ArrayList)
--this is where I get the error:
If arrFields is nothing or arrFields.Count=0 then
Call GetFields
ViewState("arrFields") = arrFields
end if
End If

Does anyone know why I would be getting this error, when in fact the object
is set?

[Jon]

Not sure, it seems like the object should be there.

Try using If arrFields is nothing OrElse arrFields.Count=0 then, in stead of
just Or and see if it makes a difference...
"Rock" <ro********@yahoo.com> wrote in message
news:%2****************@TK2MSFTNGP15.phx.gbl...

I am getting the above error on If arrFields is nothing or
arrFields.Count=0, I don't understand why I am getting the error:

dim arrFields as new ArrayList
arrFields = CType(ViewState("arrFields"), ArrayList)
--this is where I get the error:
If arrFields is nothing or arrFields.Count=0 then
Call GetFields
ViewState("arrFields") = arrFields
end if
End If

Does anyone know why I would be getting this error, when in fact the
object
is set?

[vMike]

"Rock" <ro********@yahoo.com> wrote in message
news:%2****************@TK2MSFTNGP15.phx.gbl...

I am getting the above error on If arrFields is nothing or
arrFields.Count=0, I don't understand why I am getting the error:

dim arrFields as new ArrayList
arrFields = CType(ViewState("arrFields"), ArrayList)
--this is where I get the error:
If arrFields is nothing or arrFields.Count=0 then
Call GetFields
ViewState("arrFields") = arrFields
end if
End If

Does anyone know why I would be getting this error, when in fact the object is set?

When I store things in viewstate, I always check for the ViewState being
nothing before I access it. Try adding
If not ViewState("arrFields") is nothing then ....
Mike

[bruce barker]

vb does not shortcut ifs, so if arrField is nothing, you will get an error
on the "or arrFields.Count=0" clause, which will happen if the object is
not in the viewstate.

-- bruce (sqlwork.com)
"Rock" <ro********@yahoo.com> wrote in message
news:%2****************@TK2MSFTNGP15.phx.gbl...
| I am getting the above error on If arrFields is nothing or
| arrFields.Count=0, I don't understand why I am getting the error:
|
| dim arrFields as new ArrayList
| arrFields = CType(ViewState("arrFields"), ArrayList)
| --this is where I get the error:
| If arrFields is nothing or arrFields.Count=0 then
| Call GetFields
| ViewState("arrFields") = arrFields
| end if
| End If
|
| Does anyone know why I would be getting this error, when in fact the
object
| is set?
|
|

[Rock]

Thanks. The OrElse worked, and so does checking the viewstate first. I
will keep this in mind, I now understand why it happened. Thanks all!
"bruce barker" <no***********@safeco.com> wrote in message
news:e6**************@TK2MSFTNGP14.phx.gbl...

vb does not shortcut ifs, so if arrField is nothing, you will get an error
on the "or arrFields.Count=0" clause, which will happen if the object is
not in the viewstate.

-- bruce (sqlwork.com)
"Rock" <ro********@yahoo.com> wrote in message
news:%2****************@TK2MSFTNGP15.phx.gbl...
| I am getting the above error on If arrFields is nothing or
| arrFields.Count=0, I don't understand why I am getting the error:
|
| dim arrFields as new ArrayList
| arrFields = CType(ViewState("arrFields"), ArrayList)
| --this is where I get the error:
| If arrFields is nothing or arrFields.Count=0 then
| Call GetFields
| ViewState("arrFields") = arrFields
| end if
| End If
|
| Does anyone know why I would be getting this error, when in fact the
object
| is set?
|
|