ALPHA3 and nullable types

Hi there,

I get this exception:

System.InvalidCastException was unhandled
Unable to cast object of type 'System.Nullable`1' to type 
'System.IConvertible'.

when trying this code:

// A C# 2.0 nullable variable:
DateTime? adate = Convert.ToDateTime("01/01/2005");

FbConnection conn = new FbConnection(connString);
FbCommand cmd = new FbCommand("update facturas set fecha=@fec where 
numero=@num", conn);
cmd.Parameters.Add("@fec", FbDbType.Date).Value = adate;
cmd.Parameters.Add("@num", FbDbType.Integer).Value = 20000;

conn.Open();
cmd.ExecuteNonQuery();
conn.Close();

if the "adate" variable is DateTime instead of DateTime? the code works OK.

Any comments?

Best Regards,

-Benton 




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