I found an answer. The VS generates isDatumNull where I can check property DbNull


>Hi,
>I create a dataset and datatable.
>The datatable has DataColumn "datum" As System.DateTime.
>
>For all fields I can create default values.. for integer 0, for boolean false, for string leave property blank, but what should I set for DefaultValue property in System.DateTime case?
>
>More..
>When I leave

<DBNULL>

in this property, later - I can't access this value because it brings an error.. When I use MyTableRow type.. and MyTableRow.datum - not isDbNull - but exception with wrong type cast!
>
>So, the question is
>What the value should I write in the DefaultValue property for System.DateTime?
>
>Thanks
>Denis