Linda,

>I thought I had it figured out but I'm still getting the same error. I think at least part of the problem was that when I ran the Business Layer Generator, it called the GetNonNullableDbValue function for each of the fields. I changed that to GetNullableDbValue for all the fields that can be blank, including all the date fields. If I leave a date field blank, I still get the MM error message:
>"String was not recognized as a valid DateTime."
>
>I also tried unsuccessfully adding the following code to the click method of my save button right before calling the save method:
>
>

>        if (mmType.IsEmpty(this.txtBirthDate.Text))
>            dsPersonnel.Tables[0].Rows[0]["birthdate"]= DBNull.Value;
>

I'll contact you via direct e-mail on this one so we can get you up and running ASAP.

Best Regards,