problem with defaultview

[Toufik]

Hi,
I've a strange problem, when I execute the code below I've the error
"An unhandled exception of type 'System.NullRef erenceException ' occurred in
system.data.dll
Additional information: Object reference not set to an instance of an
object."

Ive the error with the second row,
the line: dsfrm.Tables("t ablename").Defa ultView(k).Item ("prix") = 0, can be
executed without error,
but after it the datarow
dsfrm.Tables("t ablename").Defa ultView(k).Item ("taxe") gives me the erroor
NULLREFERENCE EXCEPTION and the item "prix" gives me the same error.

It looks like if the error appears after x changes made on
"dsfrm.Tables(" tablename").Def aultView"

Here is the code.
dsfrm.Tables("t ablename").Defa ultView.RowFilt er = True

For k = 0 To dsfrm.Tables("t ablename").Defa ultView.Count - 1

dsfrm.Tables("t ablename").Defa ultView(k).Item ("prix") = 0

dsfrm.Tables("t ablename").Defa ultView(k).Item ("taxe") = 0

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