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

LOL! You were posting your answer at the same time that I was writing my reply!

~~Bonnie


>
>
>>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