During Saving
Dim D As Date
If Not IsDBNull(DataGridView.CurrentRow.Cells(4).Value) Then
D = CDate(DataGridView.CurrentRow.Cells(4).Value)
Else
D = Now
End If
i dont want here D=now,if i comment it in the database it is saving as 01/01/1900,
i want null instead of that

Database Date fields cannot store Null values. That is why it comes in with a Year 1900.

Hope this helps,
Sean C