Why doesn't this work:
cbAutoBill.Chec ked = IIf(IsDBNull(re ader("autobill" )), False,
Convert.ToBoole an(reader("auto bill")))
Gives error: Object cannot be cast from DBNull to other types.
But this does:
cbAutoBill.Chec ked = IIf(IsDBNull(re ader("autobill" )), False,
reader("autobil l"))
"autobill" is a bit
-Max
2  2010 
I could be wrong but I think that everything in the IIF statements gets
evaluated even if it is not used so that when reader("autobil l") is null the
convert is evaluated and fails even though you don't want that value to be
used. I could be wrong but I think I've had it explained to me that way.
Have you tried this:
cbAutoBill.Chec ked = Convert.ToBoole an(IIf(IsDBNull (reader("autobi ll")),
False, reader("autobil l")))
Paul Ross
Hebco, Inc.
"Max" <no****@notvali d.com> wrote in message
news:OM******** ******@TK2MSFTN GP15.phx.gbl... Why doesn't this work:
cbAutoBill.Chec ked = IIf(IsDBNull(re ader("autobill" )), False,
Convert.ToBoole an(reader("auto bill")))
Gives error: Object cannot be cast from DBNull to other types.
But this does:
cbAutoBill.Chec ked = IIf(IsDBNull(re ader("autobill" )), False,
reader("autobil l"))
"autobill" is a bit
-Max
Oh you know you're right. I totally get it now. IIF is just a function like
any other. It accepts 3 variables, which are *obviously* going to be
evaluated and THEN sent to the function! Duh!
-Max
"Pross" <ta******@aol.c om> wrote in message
news:u2******** ******@tk2msftn gp13.phx.gbl... I could be wrong but I think that everything in the IIF statements gets
evaluated even if it is not used so that when reader("autobil l") is null
the convert is evaluated and fails even though you don't want that value to
be used. I could be wrong but I think I've had it explained to me that way.
Have you tried this:
cbAutoBill.Chec ked = Convert.ToBoole an(IIf(IsDBNull (reader("autobi ll")),
False, reader("autobil l")))
Paul Ross
Hebco, Inc.
"Max" <no****@notvali d.com> wrote in message
news:OM******** ******@TK2MSFTN GP15.phx.gbl... Why doesn't this work:
cbAutoBill.Chec ked = IIf(IsDBNull(re ader("autobill" )), False,
Convert.ToBoole an(reader("auto bill")))
Gives error: Object cannot be cast from DBNull to other types.
But this does:
cbAutoBill.Chec ked = IIf(IsDBNull(re ader("autobill" )), False,
reader("autobil l"))
"autobill" is a bit
-Max
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